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Pro
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Series 7
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Editi
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3/20
20
Series 75 Valves
Series 75
Edition 03/2020
22
Dorot, part of Matholding Group since 2014, is one of the world’s leading manufacturers and developers
of sustainable technologies and products for water control and optimization systems.
With more than 70 years of experience, the company is a worldwide pioneer
in providing high quality solutions for Hydraulic Controlled Valves and Air Valves.
Customers around the globe benefit on a daily basis from our experience and wide variety of solutions and services in the following areas:
Waterworks Distribution Systems for civil and industrial engineering Fire Protection Industrial Applications such as Mining,
Wastewater, Marine Water Treatment and Filtration
Agricultural and Landscape Irrigation Water Metering and others
Innovation and expertise are the backbones of Dorot. It drove us into developing a
diverse portfolio of water and other fluids systems application, in compliance with
specifications and international quality standards. Customer satisfaction and recognition is of paramount importance for Dorot. This guarantees uncompromised know-how, expertise and professionalism in planning, designing and providing the optimal hydraulic control solutions.
We invite you to join our family of business partners.Together we can provide the best control solutions for
the world’s most valuable natural resource: water
Series 75
Edition 03/2020
General
3
Dorot Series 75
Series 75 plastic valves are designed to control irrigation systems for crop fields, vineyards and orchards.This series boasts exceptional hydraulic characteristics enabling high flow rates, while operating at low head loss.A wide range of control functions allow designing and operating optimal irrigation networks.
Features: • Simple structure• Superb hydraulic performance - unmatched high
flow capacity• Durable, corrosion free materials• Unique clog-free labyrinth inlet in the electric
2-way valves• Optional check feature• Operates at a wide range of flow rates, from near
zero to maximal flow• Electric 2-way or hydraulic / electric 3-way
actuation• Optional flow control throttle handle• Simple & Easy maintenance• Suitable for Low pressure systems
Series 75
Edition 03/2020
4
Benefits
End Connections Options:
PVC Connection 2"(50mm)
BSP; NPT - Thread 3/4"- 3"(20mm-80mm)
• Trouble-free open-close as well as regulating operation even with raw water (with high rate of solids and impurities) conduction
• Excellent Regulation capabilities, including at Zero Flow conditions• Extremely wide water pass-through cross sections
Simplicity - Only 4 parts:
Versatility
Diaphragm Spring*
*For 3 way models only
BonnetBody
Manual throttling Built-in Solenoid
Flexible Diaphragm
Universal Flange 3", 4"R (80mm, 100mmR)
Series 75
Edition 03/2020
5
Operating principle
The position of the diaphragm is dictated by the volume of water in the control chamber, which is regulated by the pilot valve in order to maintain a preset pressure value.
When the operating pressure is relieved from the control chamber, the line pressure at the valve inlet opens the valve.
When inlet pressure is applied to the control chamber the valve closes drip-tight.
Closed mode Open mode Modulating mode
Energizing the solenoid operator opens a drain to the downstream, allowing the valve to open.
A solenoid operator plugs the control chamber’s outlet. A permanent connection from the upstream through a labyrinth restriction ensures line pressure into the chamber closing the valve.
Closed mode Open mode
3 Way Control
2 Way Electric-Control
Series 75
Edition 03/2020
6
Engineering Data
Diameter Range: 3/4” - 4”R
Head loss chart:
Dimensions
Dimension 20mm3/4”
25mm1”
35mm 11/2”
50mm2”
50mm2”
65mm 21/2”
80mmR3”R
80mm3”
80mm3”
100mmR4”R
Height
H1 mm / inch 38 / 11/2 38 / 11/2 67 / 25/8 67 / 25/8 67 / 25/8 67 / 25/8 67 / 25/8 100 / 315/16 100 / 315/16 100 / 315/16
H2 mm / inch 100 / 4 100 / 4 112 / 43/8 112 / 43/8 112 / 43/8 112 / 43/8 112 / 43/8 180 / 71/8 180 / 71/8 180 / 71/8
R mm / inch 18 / 11/16 22 / 13/16 30 / 13/16 37 / 11/2 37 / 11/2 47 / 17/8 54 / 21/8 60 / 23/8 100 / 315/16 110 / 45/16
Length L mm / inch 113 / 41/2 124 / 47/8 188 / 73/8 199 / 77/8 247 / 911/16 228 / 9 236 / 91/4 260 / 101/4 290 / 117/16 290 / 117/16
Vol.control chamber cc / gal 36 / 0.01 36 / 0.01 180 / 0.04 180 / 0.04 180 / 0.04 180 / 0.04 180 / 0.04 250 / 0.05 250 / 0.05 250 / 0.05
Weight kg / lbs 0.2 / 0.44 0.2 / 0.44 0.9 / 2 0.9 / 2 1.3 / 2.8 1.2 / 2.6 1.4 / 3.1 1.8 / 4.4 3 / 6.8 4 / 8.8
Hydraulic performance:
Valve Size mminch
20mm3/4”
25mm1”
35mm11/2”
50mm2”
65mm21/2”
80mmR3”R
80mm3”
100mmR4”R
Max. recommended flow rate for continuous operation
m3/hr 6 10 25 40 65 90 100 145gpm 26 44 110 176 285 396 440 640
Min. recommended flow ratem3/hr >1gpm >5
Flow rate factor Kv (metric) 7.5 15 60 71 79 90 120 120
Cv (US) 9 17.5 70 82 92 92 140 140
Pressure rangemeter 9 * - 80 7 * - 100 4 - 100
psi 15 * - 115 15 * - 150 6 - 145
* Low pressure diaphragms - minimal opening pressure:
Maximum operating temperature: 60°C (140°F)
psi mwc
6
5
4
3
2
1
2
3
4
5
6
7
8
7
81
gpmm /h3
2 3 4 5 6 8 10 20 30 40 50 60
10 15 20 30 40 50 60 80 100 150 200
100 200
1000
2" 2
"3"
R1 21 2
1"
3 / 4”
1” 3", 4
"R
2-W psi mwc
6
5
4
3
2
1
2
3
4
5
6
7
8
7
81
gpmm /h3
3"R1 2
2" 2"
1 2
1"psi mwc
50 60 80 100 150 200 300
10 20 30 40 50 601
1.5
2
3
4
5
6 4
3
2
1.9
.8
.7m /h3
gpm
3"1 21
" 2" 2
"1 2
2 3 4 5 6 8 10 20 30 40 50 60
10 15 20 30 40 50 60 80 100 150 200
100 200
1000
3 4"
1" 3"
3” / 9
0
4” / 1
10
6” / 1
60
m /h3
gpm150 200 300 400 500 700 900
30 40 50 60 80 100 200
1300
300
1700
400
psi mwc
1
1.5
2
3
4
5
6 4
3
2
1.9
.8
.7
psi mwc14
1098765
4
3
2
109876
5
4
3
2
1
10 20 30 40 50 60 70 80 90 100 200 m3/hgpm8004003002001009080706050
3x2
3x3
4x3
4x4
3x2,
3X3
4x3,
4X4
HH1
R
L
2
3-W
3/4" - 1" : 6 meter / 9 psi11/2" - 3" : 3.5 meter / 5 psi
PVC Connection
Flanged
Series 75
Edition 03/2020
7
Head loss chart:
Engineering Data
Dimensions
Dimension80mm3”H
Threaded
80mm3”H
Flanged
100mm4”
Grooved
100mm4”
Flanged
150mmR6”R
150mm6”
200mmR8”R
Height H mm / inch 162 / 63/8 190 / 71/2 160 / 7 230 / 9 285 / 111/5 285 / 111/5 307 / 12
Width W mm / inch 236 / 92/7 236 / 92/7 236 / 92/7 236 / 92/7 285 / 111/5 285 / 111/5 307 / 12
Length L mm / inch 452 / 173/4 485 / 19 350 / 133/4 373 / 141/2 420 / 161/2 420 / 161/2 500 / 192/3
Vol.control chamber cc / gal 500 / 0.13 1000 / 0.26
Weight kg / lbs 4.7 / 10.4 6 / 13.2 3.9 / 8.6 6 / 13.2 7.5 / 16.5 10.6 / 23.4 13.8 / 30.4
Hydraulic performance:
Valve Size mminch
80mm3”H
100mm4”
150mmR6”R
150mm6”
200mmR8”R
Max. recommended flow rate for continuous operation
m3/hr 160 350gpm 705 1542
Min. recommended flow ratem3/hr >1gpm >5
Flow rate factor Kv (metric) 250 350 580
Cv (US) 292 4.9 678
Pressure rangemeter 5 - 120
psi 7 - 180
Maximum operating temperature: 60°C (140°F)
psi bar
0.3
0.2
1.5
3
57
90.7
0.90.8
gpm
m3/hr
psi mwc
50 60 80 100 150 200 300
10 20 30 40 50 601
1.5
2
3
4
5
6 4
3
2
1.9
.8
.7m /h3
gpm
3"1 21
" 2" 2
"1 2
0
0.1
0.4
0.5
0.6
13
10
1.014.5
5
5
20
10
50
50
200
100 200
900
1000
4400
3”H 4-6R 6-8R
3” / 9
0
4” / 1
10
6” / 1
60
m /h3
gpm150 200 300 400 500 700 900
30 40 50 60 80 100 200
1300
300
1700
400
psi mwc
1
1.5
2
3
4
5
6 4
3
2
1.9
.8
.7
psi mwc14
1098765
4
3
2
109876
5
4
3
2
1
10 20 30 40 50 60 70 80 90 100 200 m3/hgpm8004003002001009080706050
3x2
3x3
4x3
4x4
3x2,
3X3
4x3,
4X4
R = Reduced port, 3R=323H = High flow, 3H=343
Diameter Range: 3”H - 8”R
Series 75
Edition 03/2020
8
Parts and Materials
Parts and Materials:Part Standard Optional
1 Body GRP Polypropylene PP1.1 Body - 2 way GRP Polypropylene PP
1.2 Body for flange connections GRP Polypropylene PP
2 Bonnet GRP Polypropylene PP
2.1 Bonnet with throttling handle GRP Polypropylene PP
3 Diaphragm NR ALD, EPDM4 Bolts and washers SST 304 SST 3165 Spring SST 302 SST 3166 Spring disc GRP Polypropylene PP
7 Flange3”- Plastic Aluminium4”- Plastic
8 Flange adapter PA-GF9 O-ring No. 2-347 NBR
10 O-ring No. 2-342 NBR11 2 way adaptors GRP Polypropylene PP12 3 way adaptors GRP Polypropylene PP
3/4”- 1”
REVISIONS
REV No DATE APP'D
SCALE:
GENERAL TOLERANCE
CHE'D
DATE
APP'D
PART No:
NAME
DRAWN DESIGNATION:
SIGNW EIGHT:
DIMENSIONS ARE IN MILLIMETERS
SIZE: A3NO SCALE
REV:
DESIGN
MAOR A.
A
11/2”- 3”R3”- 4”R
2.1
412
11
2
6
5
3
3
2.1
2.1
1
114
2
2
114
5
5
87
1.2
78
1
3
6
1
1.1
6
12
9 10 10 9
Diameter Range: 3/4” - 4”R
Series 75
Edition 03/2020
9
Typical Applications
PR
ELD3
PR/RC
ED2
PR/PS
75P - EL Mining
Series 75
Edition 03/2020
10
Diameter Range: 3/4” - 4”ROrdering data Ordering code Ordering data
7□ □ □ □ □ □ □ □Versions ↑ ↑ ↑ Port connections
Threaded → 5 BS BSP threaded
Flanged → 5S-F* NP NPT threaded
PVC solvent welded*** → 6 SW PVC solvent welded
Polypropylene PP → 5P / 6P Application
Bonnet B ← Basic
Standard → - M ← Manual ON-OFF
with throttling handle → T RC ← Remote hydraulic control
Port size ED2 ← Electric 2Way valve (integral operator)***3/4” / 20 mm → 75 ED2(CV) ← Electric 2Way valve with check feature***
1” / 25 mm → 1 EL(D3) ← Electric 3Way valve***
11/2” / 40 mm → 1.5 ED3 ← Electric 3Way valve (integral operator)***
2” / 50 mm → 2 PR ← Pressure Reducing
21/2” / 65 mm → 2.5 PS ← Pressure Sustaining/Relief
3”R / 80 mmR → 3R PR/EL ← Electrically-activated Pressure Reducing***
3” / 80 mm → 3 PR/RC ← Hydraulically-activated Pressure Reducing
4”R / 100 mmR → 4R PR/PS ← Pressure Reducing and Pressure Sustaining
PS/EL ← Electrically-activated Pressure Sustaining***
FR ← Flow Control Valve
FL ← Modulating Float Controlled Valve
XX ← Other (Specify)
Ordering guide
* Available for 3” and 4”R only** 2”/50mm valves are available with solvent welded only*** For Electric applications please specify voltage and current
Diameter Range: 3”H - 8”ROrdering data Ordering code Ordering data
□ □ □ □Port size ↑ ↑ ↑ Application***
3"H/80mmH → 3H M ← Manual ON-OFF
4"/100mm → 4 RC ← Remote hydraulic control
6"R/150mmR → 6R EL ← ****Electric 3Way valve
6"/150mm → 6 PR ← Pressure Reducing
8”R/200mmR → 8R PS ← Pressure Sustaining/Relief
Port size PR/EL ← ****Electrically-activated Pressure Reducing
Threaded* → T PR/RC ← Hydraulically-activated Pressure Reducing
Grooved** → V PR/PS ← Pressure Reducing and Pressure Sustaining
Flanged → F PS/EL ← ****Electrically-activated Pressure Sustaining
FR ← Flow Control Valve
FL ← Modulating Float Controlled Valve
XX ← Other (Specify)
* Threaded For 3”H valve only**Grooved For 4” valve only*** Regulating valves come with pilot 29-50M as standard**** For electric application- specify voltage and current
ReliabilityReliability
Innovation
ExpertiseInnovation
Expertise
Hundreds of companies in the industrial, civil engineering, municipal and agricultural sectors around the world have chosen DOROT’s innovative and field-proven technologies. Since its establishment in 1946, DOROT leads the valves market with continued innovation, uncompromising excellence and firm commitment to its customers, consulting and supporting them through all stages of a project and overcoming challenges in R&D, design, implementation, and maintenance.
www.dorot.com