SINGLE- ANDTWIN-IMPELLERCENTRIFUGALELECTRIC PUMPS

CEA-CA SERIES

EDIT

ION

05-

2003

3Single-ImpellerCentrifugalElectricPumps

CEAM-CEASeries

MARKET SECTORSCIVIL, AGRICULTURAL, INDUSTRIAL.

APPLICATIONS

Handling of chemically and mechanically non-aggressive water and liquids (*).

Water supply. Irrigation. Water circulation (cold, hot, refrigerated).*For moderately aggressive liquids, a version with FPM elastomers is available (CEA.../...-V). For very aggressive liquids, please contact

our sales network.

SPECIFICATIONSPUMP

Delivery up to 500 l/min (30m3/h).

Head up to 32 m. Temperature of pumped liquid: -

10C to 85C standard version (**). Maximum operating pressure: 8

bar (PN 8). Counterclockwise rotation facing the

pump from the suction port.** 110C CEA.../...-V versionsMOTOR

Asynchronous, squirrel cage rotor,closed construction, externalventilation.

Protection class: IP55. Class F insulation. Performances to EN 60034-1

specifications. Standard voltage:- Single-phase versions: 220-240

V 50 Hz, 2 poles, with automaticreset overload protection up to 1.5kW. For higher powers, the overloadprotection must be provided and

installed by the user in the controlpanel.- Three-phase version: 220-

240/380-415 V 50 Hz, 2 poles,the overload protection must beprovided and installed by the userin the control panel.

Condensate drain plugs in thestandard version.

CONSTRUCTIONCHARACTERISTICS Close-coupled, single-impeller

centrifugal pump featuring axialsuction and radial discharge.

Compact construction, with pumpcoupled directly to motor; specialmotor shaft extension supported byball bearings.

Rotating assembly has back pull-outdesign, no need to disconnect thepump body from the pipe line.

Threaded suction and dischargeports (Rp UNI-ISO 7)

High performance closedimpeller made of AISI 304stainless steel.

Mechanical seal withceramic/carbon rings, NBRelastomers, other parts are made ofAISI 304 stainless steel. Mountingdimensions according to EN 12756(ex DIN 24960) and ISO 3069.

NBR O-rings. Mounting pedestal.OPTIONALFEATURES Different voltages and frequencies. Different materials for the

mechanical seal and O-rings.

4MATERIALS

CEA MECHANICAL SEALThe standard configuration has the characteristicsshown in fig. 1 and table 1.

(FIG. 1)

1 2 4 3 5 6 7

Pump body Stainless steel X5 CrNi 18-10 304 1.4301Seal housing Stainless steel X5 CrNi 18-10 304 1.4301Diffuser Stainless steel X5 CrNi 18-10 304 1.4301Impeller Stainless steel X5 CrNi 18-10 304 1.4301Shaft extension Stainless steel X5 CrNiMo 17-12-2 316 1.4401Impeller fastening nut Stainless steel X5 CrNiMo 17-12-2 316 1.4401Fill/drain plugs Stainless steel X5 CrNiMo 17-12-2 316 1.4401Seals for fill/drain plugs High nitrile (FPM in the CEA-V versions)Mechanical seal Ceramic/Carbon/NBR (Ceramic/Carbon/FPM in the CEA-V versions)O-rings NBR (FPM in the CEA-V versions)Adapter AluminiumMounting pedestal Enamelled steelPump body nuts and bolts Zinc-plated steel

PART MATERIALS

UNI ASTM - AISI EN - DIN

STANDARD MATERIALS (TABLE 1)

Different materials are available on request.The special configuration has the characteristics shown in fig. 1and table 2.A version with fixed assembly anti-rotation lockpin is available onrequest.

ALTERNATIVE MATERIALS (TABLE 2)(ON REQUEST)

* A version with anti-rotation lockpin is available.

POS. COMPONENT MATERIAL

1 Spring AISI 304 stainless steel2 Shaft seal NBR3 Armature AISI 304 stainless steel4 Rotating assembly seal NBR5 Rotating assembly seal ring Ceramic6 Fixed assembly ring Carbon7 Fixed assembly seal NBR

POS. MATERIAL

1-2-3-4-7 5 - 6

Ceramic - CarbonCeramic - Special carbon

EPDM Silicon carbide - Special carbonSilicon carbide - Tungsten carbideTungsten carbide - Tungsten carbide*Ceramic - CarbonCeramic - Special carbon

FPM Silicon carbide - Special carbonAISI 316 Silicon carbide - Silicon carbide

Silicon carbide - Tungsten carbideTungsten carbide - Tungsten carbide*

5ELECTRICAL DATA (50 HZ, 2850 rpm) CEA - CEAM SERIES

C E A M 1 2 0 5 V

IDENTIFICATION CODE

FPM version

Impeller size

Flow rate in l/min.

Single-phase version

Series

/

The CEAM-CEA models are identified as shown in the following table.

CEA(M) 70/3 0.37 0.5 22.0 20.1 19.1 16.6 12.8CEA(M) 70/5 0.55 0.75 31.1 28.8 27.7 24.7 20.2CEA(M) 80/5 0.75 1 32.0 30.0 29.3 27.4 24.7 21.0CEA(M) 120/3 0.55 0.75 22.4 18.9 17.5 15.9 14.0 11.8 9.2CEA(M) 120/5 0.9 1.2 31.8 28.2 26.5 24.6 22.4 20.0 17.3CEA(M) 210/2 0.75 1 17.7 16.5 16.1 15.6 15.0 14.4 12.6 10.4CEA(M) 210/3 1.1 1.5 20.8 19.7 19.3 19.0 18.5 18.0 16.5 14.4CEA(M) 210/4 1.5 2 25.5 24.8 24.5 24.0 23.6 23.0 21.3 19.0CEA(M) 210/5 *1.85 2.5 29.0 28.2 27.9 27.5 27.1 26.6 25.1 23.1CEA(M) 370/1 1.1 1.5 16.3 15.5 15.2 14.3 13.0 11.4 9.4 8.1CEA(M) 370/2 1.5 2 20.4 19.1 18.3 17.2 15.8 14.1 13.0 10.8CEA(M) 370/3 *1.85 2.5 24.4 22.9 22.1 21.1 19.8 18.2 17.1 15.0 13.0* Single-phase version = 2.2 kW (3HP) cea-2p50_a_th

PUMP TYPE

l/min 0 30 40 60 80 100 120 140 160 180 200 250 300 350 400 430 480 520

m3/h 0 1.8 2.4 3.6 4.8 6 7.2 8.4 9.6 10.8 12 15 18 21 24 26 29 31

kW HP H = TOTAL HEAD METERS COLUMN OF WATER

Q = DELIVERYMOTOR

POWER

CEAM 70/3 0.6 2.72 14 CEA 70/3 0.61 2.51 1.45CEAM 70/5 0.97 4.55 16 CEA 70/5 0.88 2.86 1.65CEAM 80/5 1.07 4.87 20 CEA 80/5 1.06 3.65 2.11CEAM 120/3 0.91 4.33 16 CEA 120/3 0.82 2.74 1.58CEAM 120/5 1.39 6.24 25 CEA 120/5 1.32 4.52 2.61CEAM 210/2 1.13 5.1 20 CEA 210/2 1.12 3.76 2.17CEAM 210/3 1.48 6.68 30 CEA 210/3 1.43 4.68 2.7CEAM 210/4 1.91 8.6 40 CEA 210/4 1.84 6.04 3.49CEAM 210/5 2.31 10.6 50 CEA 210/5 2.28 8.35 4.82CEAM 370/1 1.49 6.75 30 CEA 370/1 1.44 4.71 2.72CEAM 370/2 2.05 9.26 40 CEA 370/2 1.99 6.32 3.65CEAM 370/3 2.47 11.2 50 CEA 370/3 2.47 8.63 4.98* Maximum values within operating range cea-2p50_a_te

PUMP TYPE ABSORBED ABSORBED CAPACITOR PUMP TYPE ABSORBED ABSORBED ABSORBED

POWER* POWER* POWER* CURRENT* CURRENT*

SINGLE-PHASE 220-240 V THREE-PHASE 220-240 V 380-415 V

kW A F / 450 V kW A A

Motor type: Single-phase version Three-phase versionSM (up to 1.5 kW) SMLM (over 1.5 kW)

6HYDRAULIC PERFORMANCE RANGE, CEA SERIES 50 HZ,2 POLES (2850 rpm)

Guaranteed performances according to ISO 9906 grade 2 - Annex A.

7CEA70-CEA80 SERIESOPERATING CHARACTERISTICS AT 2850 rpm 50 Hz

These performances are valid for liquids with density l = 1.0 Kg/dm3 and kinematic viscosity a = 1 mm2/sec.

8CEA120 SERIESOPERATING CHARACTERISTICS AT 2850 rpm 50 Hz

These performances are valid for liquids with density l = 1.0 Kg/dm3 and kinematic viscosity a = 1 mm2/sec.

9CEA210 SERIESOPERATING CHARACTERISTICS AT 2850 rpm 50 Hz

These performances are valid for liquids with density l = 1.0 Kg/dm3 and kinematic viscosity a = 1 mm2/sec.

10

CEA370 SERIESOPERATING CHARACTERISTICS AT 2850 rpm 50 Hz

These performances are valid for liquids with density l = 1.0 Kg/dm3 and kinematic viscosity a = 1 mm2/sec.

11

CEA SERIES DIMENSIONS AND WEIGHTS

PUMP TYPE DNA DNM WEIGHT

A D H H1 H2 L L1 W kg

DIMENSIONS (mm)

CEAM 70/3 51 120 220 111 220 311 62 65 Rp 1 Rp 1 9.7

CEAM 70/5 51 140 220 111 230 325 76 65 Rp 1 Rp 1 11.6

CEAM 80/5 51 140 220 111 230 325 76 65 Rp 1 Rp 1 12.5

CEAM 120/3 51 140 220 111 230 325 76 65 Rp 1 Rp 1 11.5

CEAM 120/5 51 140 220 111 239 325 31 65 Rp 1 Rp 1 13

CEAM 210/2 54 140 222 113 230 339 76 76 Rp 1 Rp 1 13

CEAM 210/3 54 156 222 113 246 385 69 76 Rp 1 Rp 1 14.5

CEAM 210/4 54 156 222 113 246 385 69 76 Rp 1 Rp 1 16.1

CEAM 210/5 54 176 222 113 230 416 114 76 Rp 1 Rp 1 14.4

CEAM 370/1 54 156 222 113 246 385 69 76 Rp 2 Rp 1 14

CEAM 370/2 54 156 222 113 246 385 69 76 Rp 2 Rp 1 16.1

CEAM 370/3 54 176 222 113 230 416 114 76 Rp 2 Rp 1 17.7

CEA 70/3 51 120 220 111 220 311 62 65 Rp 1 Rp 1 9.7

CEA 70/5 51 140 220 111 230 325 76 65 Rp 1 Rp 1 11.6

CEA 80/5 51 140 220 111 230 325 76 65 Rp 1 Rp 1 12.5

CEA 120/3 51 140 220 111 230 325 76 65 Rp 1 Rp 1 11.5

CEA 120/5 51 140 220 111 230 325 76 65 Rp 1 Rp 1 13

CEA 210/2 54 140 222 113 230 339 76 76 Rp 1 Rp 1 13

CEA 210/3 54 156 222 113 238 385 114 76 Rp 1 Rp 1 14.5

CEA 210/4 54 156 222 113 238 385 114 76 Rp 1 Rp 1 16.1

CEA 210/5 54 156 222 113 238 385 114 76 Rp 1 Rp 1 14.4

CEA 370/1 54 156 222 113 238 285 114 76 Rp 2 Rp 1 14

CEA 370/2 54 156 222 113 238 385 114 76 Rp 2 Rp 1 16.1

CEA 370/3 54 156 222 113 238 385 114 76 Rp 2 Rp 1 17.7cea-2p50_a_td

12

REF. N. DESCRIPTION

1 Pump body2 Impeller3 Diffuser4 Seal housing5 Adapter7 Motor

*12 Mechanical seal*13 O-ring*14 O-ring*15 O-ring16 Fill/drain plug26 Impeller fastening nut and washer27 Mounting pedestal

PUMP SECTION AND LIST OF MAIN COMPONENTS

* Recommended spare parts

13

Twin-ImpellerCentrifugalElectricPumps

CAM-CASeries

MARKET SECTORSCIVIL, AGRICULTURAL, INDUSTRIAL.

APPLICATIONS Handling of chemically and mechanically non-

aggressive water and liquids (*). Water supply. Irrigation. Water circulation (cold, hot, refrigerated).*For moderately aggressive liquids, a version with FPM elastomers is available (CA.../...-V). For very aggressive liquids, please contact our

sales network.

SPECIFICATIONSPUMP

Delivery up to 210 l/min (12.5m3/h).

Head up to 62 m. Temperature of pumped liquid:

-10C to 85C standard version (**). Maximum operating pressure: 8

bar (PN 8). Counterclockwise rotation facing the

pump from the suction port.** 110C CA.../...-V versions

MOTOR

Asynchronous, squirrel cage rotor,closed construction, externalventilation.

Protection class: IP55. Class F insulation. Performances to EN 60034-1

specifications. Standard voltage:

- Single-phase versions: 220-240 V 50 Hz, 2 poles, withautomatic reset overloadprotection up to 1.5 kW. Forhigher powers, the overload

protection must be provided andinstalled by the user in the controlpanel.

- Three-phase version: 220-240/380-415 V 50 Hz, 2 poles,the overload protection must beprovided and installed by the userin the control panel.

Condensate drain plugs in thestandard version.

CONSTRUCTIONCHARACTERISTICS Close-coupled, single-impeller

centrifugal pump featuring axialsuction and radial discharge.

Compact construction, with pumpcoupled directly to motor; specialmotor shaft extension supported byball bearings.

Threaded suction and dischargeports (Rp UNI-ISO 7)

High performance closedimpeller made of AISI 304stainless steel, keyed to motor shaftextension and held in place withtab and nut.

Mechanical seal withceramic/carbon rings, NBRelastomers, other parts are made ofAISI 304 stainless steel. Mountingdimensions according to EN 12756(ex DIN 24960) and ISO 3069.

NBR O-rings. Mounting pedestal.OPTIONALFEATURES Different voltages and frequencies. Different materials for the

mechanical seal and O-rings.

14

Pump body with seal housing Stainless steel X5 CrNi 18-10 304 1.4301Suction flange Stainless steel X5 CrNi 18-10 304 1.4301Diffuser Stainless steel X5 CrNi 18-10 304 1.4301Diffuser cover Stainless steel X5 CrNi 18-10 304 1.4301Final diffuser Stainless steel X5 CrNi 18-10 304 1.4301Final diffuser cover Stainless steel X5 CrNi 18-10 304 1.4301Impellers Stainless steel X5 CrNi 18-10 304 1.4301Impeller spacer Stainless steel X5 CrNi 18-10 304 1.4301Shaft extension Stainless steel X5 CrNi 18-10 304 1.4301Impeller fastening nut and washer Stainless steel X5 CrNi 18-10 304 1.4301Tab Stainless steel X5 CrNiMo 17-12-2 316 1.4401Fill/drain plugs Stainless steel X5 CrNiMo 17-12-2 316 1.4401Seals for fill/drain plugs High nitrile (FPM in the CEA-V versions)Mechanical seal Ceramic/Carbon/NBR (Ceramic/Carbon/FPM in the CA-V versions)Impeller shoulder washer Stainless steel X5 CrNi 18-10 304 1.4301O-rings NBR (FPM in the CA-V versions)Adapter AluminiumMounting pedestal AluminiumPump body nuts and bolts Treated steel

MATERIALS

CA MECHANICAL SEAL

The standard configuration has the characteristics shown in fig. 1and table 1.

Different materials are available on request.The special configuration has the characteristics shown in fig. 1and table 2.A version with fixed assembly anti-rotation lockpin is available onrequest.

STANDARD MATERIALS (TABLE 1)

(FIG. 1)

1 2 4 3 5 6 7

PART MATERIAL

UNI ASTM - AISI EN - DIN

ALTERNATIVE MATERIALS (TABLE 2)(ON REQUEST)

* A version with anti-rotation lockpin is available.

POS. COMPONENT MATERIAL

1 Spring AISI 316 stainless steel2 Shaft seal NBR3 Armature AISI 304 stainless steel4 Rotating assembly seal NBR5 Rotating assembly seal ring Ceramic6 Fixed assembly ring Carbon7 Fixed assembly seal NBR

POS. MATERIAL

1-2-3-4-7 5 - 6

Ceramic - Carbon

FPM Silicon carbide - Silicon carbide

AISI 316Silicon carbide - Special carbon

AISI 304Silicon carbide - Tungsten carbideTungsten carbide - Special carbonTungsten carbide - Tungsten carbideCeramic - Carbon

EPDM Ceramic - Special carbon

AISI 316Silicon carbide - Silicon carbide

AISI 304Silicon carbide - Tungsten carbideTungsten carbide - Special carbonTungsten carbide - Tungsten carbide

15

IDENTIFICATION CODEThe CAM-CA models are identified as shown in the following table.

C A M 1 2 0 5 5 V

FPM version

Impeller size

Flow rate in l/min.

Single-phase version

Series

/

ELECTRICAL DATA (50 HZ, 2850 rpm) CA - CAM SERIES

CA(M) 70/33 0.75 1 42.9 38.8 36.9 34.6 31.7 28.2 23.9CA(M) 70/34 0.9 1.2 48.8 45.1 43.2 40.7 37.7 34.0 29.5CA(M) 70/45 1.1 1.5 56.2 52.0 49.8 47.1 43.9 39.9 35.3CA(M) 120/33 1.1 1.5 44.3 39.1 37.8 36.4 34.8 31.4 27.6 21.0CA(M) 120/35 1.5 2 54.0 49.4 48.1 46.6 44.9 41.2 36.8 29.3CA(M) 120/55 *1.85 2.5 63.8 59.6 58.2 56.6 54.8 50.6 45.7 37.1CA(M) 200/33 *1.85 2.5 43.2 41.8 41.2 40.6 39.9 38.3 36.4 33.2 29.5 25.5CA 200/35 2.2 3 53.5 52.4 51.9 51.4 50.7 49.2 47.5 44.3 40.6 36.5CA 200/55 3 4 62.6 61.0 60.6 60.1 59.5 58.2 56.6 53.8 50.4 46.2* Single-phase version = 2.2kW (3HP) ca-2p50_a_th

PUMP TYPE

l/min 0 30 40 50 60 70 80 100 120 150 180 210

m3/h 0 1.8 2.4 3 3.6 4.2 4.8 6 7.2 9 10.8 12.6

kW HP

MOTOR

POWER

Q = DELIVERY

H = TOTAL HEAD METERS COLUMN OF WATER

CAM 70/33 1.15 5.16 20 CA 70/33 1.14 3.78 2.18CAM 70/34 1.39 6.22 25 CA 70/34 1.32 4.52 2.61CAM 70/45 1.76 7.92 30 CA 70/45 1.71 5.23 3.02CAM 120/33 1.67 7.53 30 CA 120/33 1.62 5.06 2.92CAM 120/35 2.18 9.87 40 CA 120/35 2.13 6.58 3.8CAM 120/55 2.61 11.7 50 CA 120/55 2.62 8.89 5.13CAM 200/33 2.36 10.8 50 CA 200/33 2.34 8.44 4.87

- - - - CA 200/35 3.14 9.18 5.3- - - - CA 200/55 3.68 10.9 6.3

*Maximum values within operating range ca-2p50_a_te

PUMP TYPE ABSORBED ABSORBED CAPACITOR PUMP TYPE ABSORBED ABSORBED ABSORBED

POWER* CURRENT* POWER* CURRENT* CURRENT*

SINGLE-PHASE 220-240 V THREE-PHASE 220-240 V 380-415 V

kW A F / 450 V kW A A

Motor type: Single-phase version Three-phase versionSM (up to 1.5 kW) SM (up to 1.85 kW)LM (over 1.5 kW) LM (over 1.85 kW)

* Single-phase version = 2.2 kW (3HP)

*Maximum values within operating range

16

HYDRAULIC PERFORMANCE RANGE, CA SERIES 50 HZ, 2POLES (2850 rpm)

Guaranteed performances according to ISO 9906 grade 2 - Annex A.

17

CA70 SERIESOPERATING CHARACTERISTICS AT 2850 rpm 50 Hz

These performances are valid for liquids with density l = 1.0 Kg/dm3 and kinematic viscosity a = 1 mm2/sec.

18

CA120 SERIESOPERATING CHARACTERISTICS AT 2850 rpm 50 Hz

These performances are valid for liquids with density l = 1.0 Kg/dm3 and kinematic viscosity a = 1 mm2/sec.

19

CA200 SERIESOPERATING CHARACTERISTICS AT 2850 rpm 50 Hz

These performances are valid for liquids with density l = 1.0 Kg/dm3 and kinematic viscosity a = 1 mm2/sec.

20

CA SERIES DIMENSIONS AND WEIGHTS

PUMP TYPE DNA DNM WEIGHT

D H L L1 M M1 N N1 S S1 W kg

DIMENSIONS (mm)

CAM 70/33 140 226 383 76 90 113 112 135 12 7 66 Rp 1 Rp 1 15

CAM 70/34 140 235 383 31 90 113 112 135 12 7 66 Rp 1 Rp 1 15.8

CAM 70/45 156 242 420 69 100 125 125 153 12 9 76 Rp 1 Rp 1 18.5

CAM 120/33 156 242 420 69 100 125 125 153 12 9 76 Rp 1 Rp 1 18.4

CAM 120/35 156 242 420 69 100 125 125 153 12 9 76 Rp 1 Rp 1 20.2

CAM 120/55 176 226 450 114 125 156 140 170 13 9 98 Rp 1 Rp 1 24.5

CAM 200/33 176 226 450 114 125 156 140 170 13 9 98 Rp 1 Rp 1 24.2

CA 70/33 140 226 383 76 90 113 112 135 12 7 66 Rp 1 Rp 1 14.9

CA 70/34 140 226 383 76 90 113 112 135 12 7 66 Rp 1 Rp 1 15.7

CA 70/35 156 234 420 114 100 125 125 153 12 9 76 Rp 1 Rp 1 17

CA 120/33 156 234 420 114 100 125 125 153 12 9 76 Rp 1 Rp 1 16.8

CA120/35 156 234 420 114 100 125 125 153 12 9 76 Rp 1 Rp 1 18.7

CA 120/55 156 234 420 114 100 125 125 153 12 9 76 Rp 1 Rp 1 20.3

CA 200/33 156 234 420 114 100 125 125 153 12 9 76 Rp 1 Rp 1 20

CA 200/35 176 226 450 149 125 156 140 170 13 9 98 Rp 1 Rp 1 22.3

CA 200/55 176 226 450 149 125 156 140 170 13 9 98 Rp 1 Rp 1 24.3

ca-2p50_a_td

21

REF. N. DESCRIPTION

1 Suction flange2 Pump body3 Impeller4 Diffuser cover5 Final diffuser6 Diffuser7 Final diffuser cover8 Impeller spacer

* 9 O-ring*10 O-ring*11 Mechanical seal*12 O-ring13 Fill/drain plug15 Motor24 Motor shim33 Adapter34 Nut and bolt35 Seal shoulder washer36 Tab37 Impeller fastening nut and washer

PUMP SECTION AND LIST OF MAIN COMPONENTS

* Recommended spare parts

22

TYPICAL APPLICATIONS FOR CEA AND CA SERIES ELECTRICPUMPS

Water Purification: Waste Management:Filtration Waste treatmentDe-ionized water Pollution controlWater treatmentCommercial and residentialpools

Plastic Industry: Machine Tools: Temperature Control DegreasingExtrusion machines Parts washingManufacture of polymers Chemical treatment

Heat treatment

Agricultural/ Residential Applications: Graphics:Irrigation Washing of filmGreenhouses Cooling processesHumidifiersWater supply

Heating, Ventilating & Marine:Air Conditioning: Water on board shipsAir scrubbersWater re-circulation Computers:Cooling towers Circuit board washingCooling systems Unit coolingTemperature controlChillers Laundry:Induction heating Commercial washersHeat exchangersWater heating Food and Drink:Booster packagers Food processing

Bottle washingGeneral Industry: Citrus processingSpray booths Dish washingLight chemical transfer BrewingBooster systems Sanitary ware

Medical:Laser coolingMassageMedical chillersSanitary equipment

23

TECHNICALAPPENDIX

TECHNICAL APPENDIX

24

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dard

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atio

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l car

bon/

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O-r

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NBR

Tab

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ww

w.lo

war

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m

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NC

EN

TR

AZ

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SO

SP

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EN

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M

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CA

NIC

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LIQ

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EN

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ER

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EN

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YM

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HA

NIC

AL

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LIQ

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MIN

(

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kg

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AX

(C

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TD

Nu

mb

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AN

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Nu

mb

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NN

BR

ED

PM

FP

M

Acid

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1)

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3 C

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H80

-51.0

53

31

33

13

Acetic a

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+70

Tungst. C

arb

. -

Sil.

Carb

.E

PD

M

configura

tion c

ode

X

PB

Acid

o C

itrico

C6H

8O

75

-51.5

42

12

22

11

Citric a

cid

+70

carb

on -

cera

mic

FP

M

configura

tion c

ode

X

AA

Acid

o F

osfo

rico (1

)H

3 P

O4

20

-51.3

33

21

13

11

Phosphoric a

cid

+30

Tungst. C

arb

. -

Sil.

Carb

.E

PD

M

configura

tion c

ode

X

PB

Acqua

H2O

100

-51

11

11

11

Wate

r+

85

carb

on -

cera

mic

NB

R

configura

tion c

ode

sta

ndard

pro

duct

Acqua D

eio

niz

zata

100

-53

11

13

11

Wate

r deio

niz

ed

+85

carb

on -

cera

mic

FP

M

configura

tion c

ode

X

AA

Acqua D

em

inera

lizzata

100

-51

11

11

11

Wate

r dem

inera

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+85

carb

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NB

R

configura

tion c

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ndard

pro

duct

Acqua d

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are

(4)

/-5

31

11

31

1

Sea w

ate

r (4

)+

25

configura

tion c

ode

not re

com

mended

Alc

ool B

utilic

oC

H3 (

CH

2) 2

CH

2O

H100

-50.8

11

12

11

21

Buty

l alc

ohol

+80

carb

on -

cera

mic

NB

R

configura

tion c

ode

sta

ndard

pro

duct

Alc

ool E

tilic

o

100

-50.8

11

31

31

13

Eth

yl alc

ohol (E

thanol)

+40

carb

on -

cera

mic

NB

R

configura

tion c

ode

sta

ndard

pro

duct

Alc

ool M

etilic

o

CH

3O

H100

-50.7

91

31

31

13

Meth

yl alc

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+40

carb

on -

cera

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NB

R

configura

tion c

ode

sta

ndard

pro

duct

Clo

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CH

Cl 3

/-5

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83

23

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PM

configura

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X

NA

Se

al m

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mm

en

de

d

CEA

- C

A S

eri

es

TECHNICAL APPENDIX

25

TECHNICAL APPENDIX

Fre

on 1

12

CC

I 2F

CC

l 2F

100

-51.5

72

23

12

31

+30

Tungst. C

arb

. -

Sil.

Carb

.F

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configura

tion c

ode

X

NA

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on 1

13

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l 2F

CC

lF2

100

-51.4

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32

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no

+30

carb

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mic

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configura

tion c

ode

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ndard

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duct

Glic

ole

E

tile

nic

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HC

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yle

ne g

lycol

+80

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rito

di sodio

(1

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Cl

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m h

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+25

configura

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-51

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Soda C

austica

Na O

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0

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Caustic S

oda

+70

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arb

. -

Sil.

Carb

.E

PD

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configura

tion c

ode

X

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Tric

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ne /T

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/-5

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a)

(1

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carb

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configura

tion c

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X

AA

(X)

- R

ichi

esto

bat

tent

e po

sitiv

o / P

ositi

ve s

uctio

n he

ad r

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red

1 =

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A' B

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NA

(1)-

Liq

uido

per

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oso

(tos

sico

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enos

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abile

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= C

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ITA

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OD

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MPA

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ILIT

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ange

rous

liqu

id (

toxi

c,po

ison

ous,

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cks

skin

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,etc

.)3

= N

ON

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MPA

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ILE

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OR

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TIB

ILIT

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)-L

iqui

do in

fiam

mab

ile e

d es

plos

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3 =

NO

CO

MPA

TIB

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nd e

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)-So

lo v

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sary

.

1

26

WATER REQUIREMENTS IN CIVIL USERS

Water requirements in condominiums

The first operation that is necessary for sizing a booster set is determining the quantity of water and thepressure it has to supply.

The table at page 165 shows maximum water consumption values for each delivery point, depending on theplumbing amenities.

The maximum theoretical requirement is given by the sum of the water consumption values of each deliverypoint. In actual fact, the delivery points are never used all together; only a few of them are used.

Therefore, it is extremely important to determine the maximum number of delivery points that are more likelyto be used at the same time.

The first step is establishing the value of the contemporaneity factor, which depends on the number of deliverypoints.

Values have been calculated with the following formulas:

- Apartments with one bathroom

f = 1/ (0.643 x Nr x Na)1/2 x 1.05 with flush tank WC

f = 1/ (0.857 x Nr x Na)1/2 x 1 with controlled flushing system WC

- Apartments with two bathrooms

f = 1/ (0.545 x Nr x Na)1/2 x 1.03 with flush tank WC

f = 1/ (0.727 x Nr x Na)1/2 x 0.8 with controlled flushing system WC

where Nr = number of delivery pointsNa = number of apartments

The table at page 166 shows the maximum contemporaneity flow-rate values for apartments with one or twobathrooms provided with flush tank WC or controlled flushing system WC. As regards apartments with onebathroom, 7 drawing points have been taken into consideration, while 11 points have been considered forapartments with two bathrooms.

Water requirements for community buildings

The requirements of buildings intended for specific uses, such as hospitals, hotels, offices, boarding schools,residential hotels, department stores, are different from those of condominiums, and both their global dailywater consumption and the maximum contemporaneity flow rate are usually greater.

The diagram at page 167 shows the requirements of a few communities, for guidance.

These requirements must be determined case by case, with the utmost accuracy, according to particular needsand local provisions.

TECHNICAL APPENDIX

27

1 2 1 2

1 32 40 60 792 45 56 85 1113 55 68 105 1364 63 79 121 1575 71 88 135 1766 78 97 148 1937 84 105 160 2088 90 112 171 2239 95 119 181 236

10 100 125 191 24911 105 131 200 26112 110 137 209 27313 114 143 218 28414 119 148 226 29515 123 153 234 30516 127 158 242 31517 131 163 249 32518 134 168 256 33419 138 172 263 34320 142 177 270 35221 145 181 277 36122 149 185 283 36923 152 190 290 37824 155 194 296 38625 158 198 302 39426 162 202 308 40127 165 205 314 40928 168 209 320 41729 171 213 325 42430 174 217 331 43135 187 234 357 46640 200 250 382 49845 213 265 405 52850 224 280 427 55755 235 293 448 58460 245 306 468 61065 255 319 487 63570 265 331 506 65975 274 342 523 68280 283 354 540 70485 292 364 557 72690 301 375 573 74795 309 385 589 767100 317 395 604 787

Flow rate (l/min)NUMBER OF

APARTMENTS

WITH FLUSH TANK WC WITH CONTROLLED FLUSHING SYSTEM WC

WATER REQUIREMENTS IN CIVIL USERS

TECHNICAL APPENDIX

28

1 2 1 2

100 317 395 604 787120 347 433 662 863140 375 468 715 932160 401 500 764 996180 425 530 811 1056200 448 559 854 1114220 470 586 896 1168240 491 612 936 1220260 511 637 974 1270280 530 661 1011 1318300 549 685 1047 1364320 567 707 1081 1408340 584 729 1114 1452360 601 750 1146 1494380 618 771 1178 1535400 634 791 1208 1575450 672 838 1282 1670

91015666

121290

Flow rate (l/min)NUMBER OF

APARTMENTS

WITH FLUSH TANK WC WITH CONTROLLED FLUSHING SYSTEM WC

ShowerControlled flushing system WC

DishwasherBathtubWashbasinBidetFlush tank WCWashing machine

Note: For seaside resorts, a flow rate increased by at least 20% must beconsidered.

TYPE FLOW RATE

l/minSink

WATER REQUIREMENTS IN CIVIL USERS

TECHNICAL APPENDIX

29

WATER REQUIREMENTS IN CIVIL USERS

TECHNICAL APPENDIX

NU

MBE

R O

F PE

OPL

E O

R BE

DS

1 =

OFF

ICES

(N

. OF

PEO

PLE)

3 =

HO

SPIT

ALS

(BE

DS)

2 =

DEP

ART

MEN

T ST

ORE

S (N

. OF

PEO

PLE)

*4 =

RES

IDEN

TIA

L H

OTE

LS (

BED

S)

*NO

TE =

FO

R SE

ASI

DE

RESO

RTS

CO

NSI

DER

A M

INIM

UM

20%

FLO

W R

ATE

INC

REA

SE

FLO

W R

ATE

30

NPSH

TECHNICAL APPENDIX

The minimum operating values that can be reached atthe pump suction end are limited by the onset ofcavitation.

Cavitation is the formation of vapour-filled cavitieswithin liquids where the pressure is locally reduced to acritical value, or where the local pressure is equal to, orjust below the vapour pressure of the liquid.

The vapour-filled cavities flow with the current andwhen they reach a higher pressure area the vapourcontained in the cavities condenses. The cavities collide,generating pressure waves that are transmitted to thewalls. These, being subjected to stress cycles, graduallybecome deformed and yield due to fatigue. Thisphenomenon, characterized by a metallic noiseproduced by the hammering on the pipe walls, is calledincipient cavitation.

The damage caused by cavitation may be magnified byelectrochemical corrosion and a local rise intemperature due to the plastic deformation of thewalls. The materials that offer the highest resistance toheat and corrosion are alloy steels, especially austeniticsteel. The conditions that trigger cavitation may beassessed by calculating the total net suction head,referred to in technical literature with the acronymNPSH (Net Positive Suction Head).

The NPSH represents the total energy (expressed in m.)of the liquid measured at suction under conditions ofincipient cavitation, excluding the vapour pressure(expressed in m.) that the liquid has at the pump inlet.

To find the static height hz at which to install themachine under safe conditions, the following formulamust be verified:

hp + hz (NPSHr + 0.5) + hf + hpv

where:hp is the absolute pressure applied to the free liquid

surface in the suction tank, expressed in m. ofliquid; hp is the quotient between the barometricpressure and the specific weight of the liquid.

hz is the suction lift between the pump axis and thefree liquid surface in the suction tank, expressedin m.; hz is negative when the liquid level islower than the pump axis.

hf is the flow resistance in the suction line and itsaccessories, such as: fittings, foot valve, gatevalve, elbows, etc.

hpv is the vapour pressure of the liquid at theoperating temperature, expressed in m. of liquid. hpv is the quotient between the Pv vapourpressure and the liquid's specific weight.

0.5 is the safety factor.

The maximum possible suction head for installationdepends on the value of the atmospheric pressure(i.e. the elevation above sea level at which the pumpis installed) and the temperature of the liquid.

To help the user, with reference to water temperature(4C) and to the elevation above sea level, thefollowing tables show the drop in hydraulic pressurehead in relation to the elevation above sea level, andthe suction loss in relation to temperature.

Water20 40 60 80 90 110 120temperature (C)

Suction0,2 0,7 2,0 5,0 7,4 15,4 21,5loss (m)

Elevation above500 1000 1500 2000 25003000sea level (m)

Suction0,55 1,1 1,65 2,2 2,75 3,3loss (m)

Flow resistance is shown in the tables at pages 344-345 of this catalogue. To reduce it to a minimum,especially in cases of high suction head (over 4-5 m.)or within the operating limits with high flow rates, werecommend using a suction line having a largerdiameter than that of the pump's suction port.It is always a good idea to position the pump as closeas possible to the liquid to be pumped.

Make the following calculation:

Liquid: water at 15C y = 1 kg/dm3

Flow rate required: 30 m3/hHead for required delivery: 43 m.Suction lift: 3.5 m.The selection is an FHE 40-200/75 pump whose NPSHrequired value is, at 30 m3/h, 2.5 m.

For water at 15C the hpv term is Pv = 0,174 m (0.01701 bar)a

and h = Pa = 10,33ma

The Hf flow resistance in the suction line with footvalves is 1.2 m.By substituting the parameters in formula with thenumeric values above, we have:

10,33 + (-3,5) (2,5 + 0,5) + 1,2 + 0,17

from which we have: 6.8 > 4.4

The relation is therefore verified.

31

TABELLA TENSIONE DI VAPORE ps E DENSIT DELLACQUA

t T ps C K bar kg/dm3

t T ps C K bar kg/dm3

t T ps C K bar kg/dm3

0 273,15 0,00611 0,99981 274,15 0,00657 0,99992 275,15 0,00706 0,99993 276,15 0,00758 0,99994 277,15 0,00813 1,00005 278,15 0,00872 1,00006 279,15 0,00935 1,00007 280,15 0,01001 0,99998 281,15 0,01072 0,99999 282,15 0,01147 0,999810 283,15 0,01227 0,999711 284,15 0,01312 0,999712 285,15 0,01401 0,999613 286,15 0,01497 0,999414 287,15 0,01597 0,999315 288,15 0,01704 0,999216 289,15 0,01817 0,999017 290,15 0,01936 0,998818 291,15 0,02062 0,998719 292,15 0,02196 0,998520 293,15 0,02337 0,998321 294,15 0,2485 0,998122 295,15 0,02642 0,997823 296,15 0,02808 0,997624 297,15 0,02982 0,997425 298,15 0,03166 0,997126 299,15 0,03360 0,996827 300,15 0,03564 0,996628 301,15 0,03778 0,996329 302,15 0,04004 0,996030 303,15 0,04241 0,995731 304,15 0,04491 0,995432 305,15 0,04753 0,995133 306,15 0,05029 0,994734 307,15 0,05318 0,994435 308,15 0,05622 0,994036 309,15 0,05940 0,993737 310,15 0,06274 0,993338 311,15 0,06624 0,993039 312,15 0,06991 0,992740 313,15 0,07375 0,992341 314,15 0,07777 0,991942 315,15 0,08198 0,991543 316,15 0,09639 0,991144 317,15 0,09100 0,990745 318,15 0,09582 0,990246 319,15 0,10086 0,989847 320,15 0,10612 0,989448 321,15 0,11162 0,988949 322,15 0,11736 0,988450 323,15 0,12335 0,988051 324,15 0,12961 0,987652 325,15 0,13613 0,987153 326,15 0,14293 0,986254 327,15 0,15002 0,986255 328,15 0,15741 0,9857

56 329,15 0,16511 0,985257 330,15 0,17313 0,984658 331,15 0,18147 0,984259 332,15 0,19016 0,983760 333,15 0,19920 0,9232

61 334,15 0,2086 0,982662 335,15 0,2184 0,982163 336,15 0,2286 0,981664 337,15 0,2391 0,981165 338,15 0,2501 0,980566 339,15 0,2615 0,979967 340,15 0,2733 0,979368 341,15 0,2856 0,978869 342,15 0,2984 0,978270 343,15 0,3116 0,977771 344,15 0,3253 0,977072 345,15 0,3396 0,976573 346,15 0,3543 0,976074 347,15 0,3696 0,975375 348,15 0,3855 0,974876 349,15 0,4019 0,974177 350,15 0,4189 0,973578 351,15 0,4365 0,972979 352,15 0,4547 0,972380 353,15 0,4736 0,971681 354,15 0,4931 0,971082 355,15 0,5133 0,970483 356,15 0,5342 0,969784 357,15 0,5557 0,969185 358,15 0,5780 0,968486 359,15 0,6011 0,967887 360,15 0,6249 0,967188 361,15 0,6495 0,966589 362,15 0,6749 0,965890 363,15 0,7011 0,965291 364,15 0,7281 0,964492 365,15 0,7561 0,963893 366,15 0,7849 0,963094 367,15 0,8146 0,962495 368,15 0,8453 0,961696 369,15 0,8769 0,961097 370,15 0,9094 0,960298 371,15 0,9430 0,959699 372,15 0,9776 009586100 373,15 1,0133 0,9581102 375,15 1,0878 0,9567104 377,15 1,1668 0,9552106 379,15 1,2504 0,9537108 381,15 1,3390 0,9522110 383,15 1,4327 0,9507112 385,15 1,5316 0,9491114 387,15 1,6362 0,9476116 389,15 1,7465 0,9460118 391,15 1,8628 0,9445120 393,15 1,9854 0,9429

122 395,15 2,1145 0,9412124 397,15 2,2504 0,9396126 399,15 2,3933 0,9379128 401,15 2,5435 0,9362130 403,15 2,7013 0,9346

132 405,15 2,8670 0,9328134 407,15 3,041 0,9311136 409,15 3,223 0,9294

138 411,15 3,414 0,9276140 413,15 3,614 0,9258145 418,15 4,155 0,9214150 423,15 4,760 0,9168155 428,15 5,433 0,9121160 433,15 6,181 0,9073165 438,15 7,008 0,9024170 433,15 7,920 0,8973175 448,15 8,924 0,8921180 453,15 10,027 0,8869185 458,15 11,233 0,8815190 463,15 12,551 0,8760195 468,15 13,987 0,8704200 473,15 15,55 0,8647205 478,15 17,243 0,8588210 483,15 19,077 0,8528215 488,15 21,060 0,8467220 493,15 23,198 0,8403225 498,15 25,501 0,8339230 503,15 27,976 0,8273235 508,15 30,632 0,8205240 513,15 33,478 0,8136245 518,15 36,523 0,8065250 523,15 39,776 0,7992255 528,15 43,246 0,7916260 533,15 46,943 0,7839265 538,15 50,877 0,7759270 543,15 55,058 0,7678275 548,15 59,496 0,7593280 553,15 64,202 0,7505285 558,15 69,186 0,7415290 563,15 74,461 0,7321295 568,15 80,037 0,7223300 573,15 85,927 0,7122305 578,15 92,144 0,7017310 583,15 98,700 0,6906315 588,15 105,61 0,6791320 593,15 112,89 0,6669325 598,15 120,56 0,6541330 603,15 128,63 0,6404340 613,15 146,05 0,6102350 623,15 165,35 0,5743360 633,15 186,75 0,5275370 643,15 210,54 0,4518

374,15 647,30 221,2 0,3154

TECHNICAL APPENDIX

ps VAPOUR PRESSURE AND l DENSITY OF WATER TABLE

32

PORTATA DIAMETRO NOMINALE IN mm E IN POLLICI

m3/h l/min. 15 20 25 32 40 50 65 80 100 125 150 175 200 250 300 350 4001/2 3/4 1 1 1/4 11/2 2 21/2 3 4 5 6 7 8 10 12 14 16

0,6 10V 0,94 0,53 0,34 0,21

hr 11,8 2,82 1 0,25

0,9 15V 1,42 0,8 0,51 0,31

hr 25,1 6,04 2,16 0,55

1,2 20V 1,89 1,06 0,68 0,41 0,27

hr 43,1 10,4 3,72 0,95 0,31

1,5 25V 2,36 1,33 0,85 0,52 0,33

hr 64,5 15,8 5,68 1,47 0,47

1,8 30V 2,83 1,59 1,02 0,62 0,4

hr 92 22,3 8 2,09 0,66

2,1 35V 3,3 1,86 1,19 0,73 0,46 0,3

hr 123 29,8 10,8 2,81 0,89 0,31

2,4 40V 3,77 2,12 1,36 0,83 0,53 0,34

hr 164 38,2 13,8 2,65 1,15 0,4

3 50V 4,72 2,65 1,7 1,04 0,66 0,42

hr 246 58,2 21,5 5,6 1,75 0,61

3,6 60V 3,18 2,04 1,24 0,8 0,51

hr 82 30 8 2,48 0,86

4,2 70V 3,72 2,38 1,45 0,93 0,59

hr 110 40 10,8 3,33 1,14

4,8 80V 4,25 2,72 1,66 1,06 0,68

hr 141 51,5 13,9 4,3 1,46

5,4 90V 3,06 1,87 1,19 0,76 0,45

hr 64 17,5 5,4 1,82 0,46

6 100V 3,4 2,07 1,33 0,85 0,5

hr 79 21,4 6,6 2,22 0,56

7,5 125V 4,25 2,59 1,66 1,06 0,63

hr 120 33 10 3,4 0,86

9 150V 3,11 1,99 1,27 0,75 0,5

hr 47 14,2 4,74 1,21 0,43

10,5 175V 3,63 2,32 1,49 0,88 0,58

hr 63 19 6,3 1,63 0,57

12 200V 4,15 2,65 1,7 1,01 0,66

hr 82 24,5 8,1 2,1 0,74

15 250V 5,18 3,32 2,12 1,26 0,83 0,53

hr 126 37,5 12,3 3,2 1,12 0,36

18 300V 3,98 2,55 1,51 1 0,64

hr 53 17,3 4,5 1,58 0,51

24 400V 5,31 3,4 2,01 1,33 0,85

hr 92 29,5 7,8 2,7 0,89

30 500V 6,63 4,25 2,51 1,66 1,06 0,68

hr 140 44,8 12 4,13 1,36 0,48

36 600V 5,1 3,02 1,99 1,27 0,82

hr 63 16,9 5,8 1,93 0,68

42 700V 5,94 3,52 2,32 1,49 0,95

hr 84 22,6 7,8 2,6 0,9

48 800V 6,79 4,02 2,65 1,70 1,09 0,75

hr 108 29 10 3,35 1,16 0,43

54 900V 7,64 4,52 2,99 1,91 1,22 0,85

hr 134 36 12,5 4,2 1,45 0,54

60 1000V 5,03 3,32 2,12 1,36 0,94

hr 44,5 15,2 5,14 1,76 0,66

75 1250V 6,28 4,15 2,65 1,70 1,18 0,87

hr 68 23 7,9 2,68 1 0,48

90 1500V 7,54 4,98 3,18 2,04 1,42 1,04

hr 96 32,6 11,2 3,77 1,42 0,68

105 1750V 8,79 5,81 3,72 2,38 1,65 1,21 0,93

hr 129 43,5 15 5,04 1,9 0,91 0,45

120 2000V 6,63 4,25 2,72 1,89 1,39 1,06 0,68

hr 56 19,4 6,5 2,43 1,18 0,58 0,16

150 2500V 8,29 5,31 3,40 2,36 1,73 1,33 0,85

hr 85 30 9,8 3,75 1,79 0,89 0,25

180 3000V 9,95 6,37 4,08 2,83 2,08 1,59 1,02 0,71

hr 120 42 13,8 5,3 2,53 1,25 0,35 0,15

300 5000V 10,62 6,79 4,72 3,47 2,65 1,70 1,18 0,87 0,66

hr 124,9 41,3 16,74 7,81 4,03 1,34 0,54 0,25 0,13

600 10000V 13,59 9,44 6,93 5,31 3,4 2,36 1,73 1,33

hr 161 65 30,2 15,6 5,16 2,09 0,97 0,5

1200 20000V 6,79 4,72 3,47 2,65

hr 20,1 8,13 3,8 1,95

1800 30000V 7,7 5,2 4,0

hr 18,07 8,39 4,32

3000 50000V 11,8 8,67 6,63

hr 49,5 23 11,8

4500 75000V 17,7 13 9,9

hr 110,5 51,3 26,4

6000 100000V 17,33 13,27

hr 90,6 46,6

LE PERDITE DI CARICO DEVONO ESSERE MOLTIPLICATE PER: 0,8 per tubi in acciaio inox 1,25 per tubi in acciaio leggermente arrugginiti 1,7 per tubi con incrostazioni che riducono la sezione di passaggio 0,7 per tubi di alluminio 1,3 per tubi in fibra di cemento

V =

VEL

OCI

T D

ELLA

CQU

A(m

/sec

)hr

= P

ERD

ITA

DI C

ARI

CO (m

/100

m D

I TU

BAZI

ON

E)

TECHNICAL APPENDIX

TABLE OF FLOW RESISTANCE IN 100 m OF A NEW ANDSTRAIGHT CAST IRON PIPELINE

FLOW RATE NOMINAL DIAMETER IN mm AND INCHES

THE FLOW RESISTANCE MUST BE MULTIPLIED BY: 0.8 for stainless steel pipes 1.25 for slightly rusted steel pipes 1.7 for pipes with deposits that reduce the flow section 0.7 for aluminium pipes 1.3 for fibre-cement pipes

V =

WA

TER

SPEE

D (

m/s

ec)

Hr

= F

LOW

RES

ISTA

NC

E (m

/100

m O

F PI

PELI

NE)

33

TABELLA PERDITE DI CARICO NELLE CURVE, VALVOLE E SARACINESCHEIN cm DI COLONNA DACQUA

VELOCIT CURVE AD ANGOLO VIVO CURVE NORMALI SARACI- VALVO- VALVO-DELLACQUA NESCHE LE DI LE DI

NORMALI FONDO RITEGNO

m/sec a = 30 a = 40 a = 60 a = 80 a = 90 d = 0,4 d = 0,6 d = 0,8 d = 1 d = 1,5R R R R R

0,10 0,03 0,04 0,05 0,07 0,08 0,007 0,008 0,01 0,0155 0,027 0,030 30 300,15 0,06 0,07 0,10 0,14 0,17 0,016 0,019 0,024 0,033 0,06 0,033 31 310,2 0,11 0,13 0,18 0,26 0,31 0,028 0,033 0,04 0,058 0,11 0,058 31 310,25 0,17 0,21 0,28 0,4 0,48 0,044 0,052 0,063 0,091 0,17 0,090 31 310,3 0,25 0,30 0,41 0,6 0,7 0,063 0,074 0,09 0,13 0,25 0,13 31 310,35 0,33 0,40 0,54 0,8 0,93 0,085 0,10 0,12 0,18 0,33 0,18 31 310,4 0,43 0,52 0,71 1,0 1,2 0,11 0,13 0,16 0,23 0,43 0,23 32 310,5 0,67 0,81 1,1 1,6 1,9 0,18 0,21 0,26 0,37 0,67 0,37 33 320,6 0,97 1,2 1,6 2,3 2,8 0,25 0,29 0,36 0,52 0,97 0,52 34 320,7 1,35 1,65 2,2 3,2 3,9 0,34 0,40 0,48 0,70 1,35 0,70 35 320,8 1,7 2,1 2,8 4,0 4,8 0,45 0,53 0,64 0,93 1,7 0,95 36 330,9 2,2 2,7 3,6 5,2 6,2 0,57 0,67 0,82 1,18 2,2 1,20 37 341,0 2,7 3,3 4,5 6,4 7,6 0,7 0,82 1,0 1,45 2,7 1,45 38 351,5 6,0 7,3 10 14 17 1,6 1,9 2,3 3,3 6 3,3 47 402,0 11 14 18 26 31 2,8 3,3 4,0 5,8 11 5,8 61 482,5 17 21 28 40 48 4,4 5,2 6,3 9,1 17 9,1 78 583,0 25 30 41 60 70 6,3 7,4 9 13 25 13 100 713,5 33 40 55 78 93 8,5 10 12 18 33 18 123 854,0 43 52 70 100 120 11 13 16 23 42 23 150 1004,5 55 67 90 130 160 14 21 26 37 55 37 190 1205,0 67 82 110 160 190 18 29 36 52 67 52 220 140

1) Le perdite di carico nelle curve sono soltanto quelle dovute alla contrazione dei filetti liquidi per cambiamento di direzione: lo sviluppo delle curve deve quindiessere compreso nella lunghezza della tubazione.

2) Le perdite di carico nelle valvole e saracinesche sono state determinate in base a prove pratiche.

TECHNICAL APPENDIX

TABLE OF FLOW RESISTANCE IN BENDS, VALVES ANDGATES IN cm OF COLUMN OF WATER

WATERSPEED

SHARP BENDS SMOOTH BENDS STANDARDGATE

VALVES

FOOTVALVES

CHECKVALVES

1) Flow resistance in bends is due to the contraction of the liquid threads resulting from the change of direction: the development of the bendsmust therefore be included in the length of the pipeline.

2) Flow resistance in valves and gates was determined on the basis of practical tests.

34

l/min m/h ft/h ft/min imp. gal./min US gal./min

1,0000 0,0600 2,1189 0,0353 0,2200 0,264016,6670 1,0000 35,3147 0,5886 3,6660 4,40300,4720 0,0283 1,0000 0,0167 0,1040 0,1250

28,3170 1,6990 60,0000 1,0000 6,2290 7,48004,5460 0,2728 9,6326 0,1605 1,0000 1,20103,7850 0,2271 8,0209 0,1337 0,8330 1,00000,1100 0,0066 0,2339 0,0039 0,0240 0,0290

N/m kPa bar psi m H2 O mm Hg

1,0000 0,0010 1 x 105 1,45 x 10-4 1,02 x 10-4 0,00751.000,0000 1,0000 0,0100 0,1450 0,1020 7,5000

100.000,0000 100,0000 1,0000 14,5000 10,2000 750,100098.067,0000 98,0700 0,9810 14,2200 10,0000 735,60006.895,0000 6,8950 0,0690 1,0000 0,7030 51,72002.984,0000 2,9840 0,0300 0,4330 0,3050 22,42009.789,0000 9,7890 0,0980 1,4200 1,0000 73,4200

133,3000 0,1330 0,0013 0,0190 0,0140 1,00003.386,0000 3,3860 0,0338 0,4910 0,3450 25,4000

millimetre centimetre metre inch foot yardmm cm m in ft yd

1,0000 0,1000 0,0010 0,0394 0,0033 0,001110,0000 1,0000 0,0100 0,3937 0,0328 0,0109

1000,0000 100,0000 1,0000 39,3701 3,2808 1,093625,4000 2,5400 0,0254 1,0000 0,0833 0,0278

304,8000 30,4800 3,0480 12,0000 1,0000 0,3333914,4000 91,4400 0,9144 36,0000 3,0000 1,0000

cubic metre litre millilitre imp. gallon US gallon cubic footm l ml imp. gal. US gal ft

1,0000 1.000,0000 1 x 106 220,0000 264,2000 35,31470,0010 1,0000 1.000,0000 0,2200 0,2642 0,03531 x 10-6 0,0010 1,0000 2,2 x 10-4 2,642 x 10-4 3,53 x 10-5

0,0045 4,5460 4.546,0000 1,0000 1,2010 0,16050,0038 3,7850 3.785,0000 0,8327 1,0000 0,13370,0283 28,3170 28.317,0000 6,2288 7,4805 1,0000

Pressione e PrevalenzaNewton per square

metrekiloPascal bar pound force per

square inchmetre of water millimetre of

mercury

Volume

imp. gal. per minute

US gal. per minute

Lunghezza

Portata Volumetricalitres

per minutecubic metres cubic feet

per hour per hourcubic feetper minute

VOLUMETRIC CAPACITY

PRESSURE AND HEAD

LENGTH

VOLUME

TECHNICAL APPENDIX

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