SAFETY NOT RETURN VALVES SNR Ø 100 ÷ 700

EXPLOSION VALVES ATEX CERTIFIED

1370 EPT 18 ATEX 3028 X II D

Aircom’s safety not return valves, are ATEX CERTIFIED EN 16447 against the propagation of explosion in suction lines. They are the sure solution to isolate the environments in case of explosion in the suction plants locking the explosive effect in the suc-

tion line. They are made of carbon steel painted standard RAL 3020 or in stainless steel AISI 304 or AISI 316, welded in all the

unions and the structure is reinforced to withstand high pressures. Our standard production is equipped with flanges and counterflan-

ges compatible with DIN 24154-R1 except Ø35-550-650-700 and locking mechanism. The gasket grants the sealing in closing posi-

tion.

TECHNICAL DATA:

Horizontal pipe

Temperature range: from -20°C to +60°C

Process flux: pull flow

Dust type: not metallic

Minimum applicable volume: see table (Vmin)

ATEX class: 2

pred,max: 0,5 bar (7,25 PSI)

pmax: 8.6 bar

MIE: 3÷10 mJ

MIT: 600 °C

Maximum air speed: 30 m/s

Minimum and maximum installation distance: see table (Lmin / Lmax)

ACCESSORIES ON DEMAND:

Microswitch closed position

Capacitive sensor for dust deposit detecting

Gasket in siliconcell

Pneumatic cleaning system

Pneumatic rearm for anti-opening lock

ØSNR [mm]

A [mm]

B [mm]

C [mm]

D [mm]

E [mm]

H [mm]

M [mm]

160 360 360 555 460 305 - 25

180 360 360 555 460 305 - 25

200 360 360 555 460 305 - 25

250 410 410 605 510 330 - 25

300 460 460 675 555 355 - 25

350 510 530 725 605 380 305 25

400 560 580 775 690 405 350 65

450 610 630 825 750 430 400 120

500 660 680 875 860 455 455 200

550 710 730 925 875 480 505 120

600 760 780 975 930 505 555 160

650 810 830 1025 1010 530 605 200

700 860 880 1075 1095 555 655 250

m [kg]

20

20

20

25

38

45

54

68

80

100

115

125

135

100 150 195 385 - 230 - - 8

150 200 245 435 - 255 - - 10

125 175 220 410 - 255 - - 9

F [mm]

100

110

125

180

180

180

205

230

255

280

305

330

355

380

405

430

G [mm]

75

88

100

170

170

175

195

220

245

270

295

320

345

370

395

420

ØSNR [mm]

Lmin [m]

Lmax [m]

Kst,max [bar*m/s]

Pressure drop @ 25 m/s [mmH2O]

100 3 5 270 27,0

125 3 5 270 27,0

150 3 5 270 26,5

160 2 4 270 26,5

180 2 4 270 26,0

200 2 4 270 25,0

250 2 4 270 24,5

300 2 4 270 24,5

350 2 4 270 24,0

400 2 4 270 23,5

450 3 4 260 23,0

500 3 4 260 23,0

550 3 4 260 23,5

600 3 4 260 23,5

650 3 4 260 24,0

700 3 4 260 24,0

Vmin [m³]

2,34

2,34

2,34

2,34

2,34

2,34

2,34

2,34

2,34

2,34

10

10

10

10

10

10

1370 FSA 18 ATEX 1682 X II D (Ø800)

SAFETY NOT RETURN VALVES Ø 800-900

EXPLOSION VALVES ATEX CERTIFIED

Aircom’s safety not return valves ARE ATEX CERTIFIED EN 15089 - 16447 against the propagation of explosion in suc-

tion lines.

A suitable counterweight allows the balancing of the 2 flaps for a regular opening and closing. The valves are supplied with

anti-opening lock.

They are made in carbon steel painted standard RAL 3020 or of stainless steel AISI 304 or AISI 316, welded in all the unions

and the structure is reinforced to withstand high pressures. Our standard production is equipped with flanges and counterflan-

ges compatible with DIN 24154-R1.

A gasket ensures the sealing in closed position. The valves are equipped with support slots to sustain the consistent weight.

TECHNICAL DATA:

Horizontal pipe

Temperature range: from –20°C to +60°C

Process flux: pull flow

Dust type: not metallic

Range of applicable volumes: from 10 m3 to 60 m3

pred,max: see table

pmax = 9 bar

MIE: see table

MIT: see table

Maximum dust concentration: 4 LEL

Maximum air speed: 30 m/s

Maximum and minimum installation distance: see table (Lmin / Lmax)

Pipe structure to withstand pressure: see table (pcond)

Explosion resistance of the valve’s flap: see table (pR)

ACCESSORIES ON DEMAND:

Microswitch closed position

Capacitive sensor for dust deposit detecting

Gasket in siliconcell

ØSNR

[mm]

A

[mm]

B

[mm]

C

[mm]

D

[mm]

E

[mm]

F

[mm]

G

[mm]

m

[kg]

800 980 1005 1330 1435 660 660 480 330

H

[mm]

715

900 1080 1130 1136 1210 540 668 532 400 335

Ø SNR

[mm] 800 900

ATEX Class 2 3

Kst,max

[bar*m/s] 240 330

pred,max [bar] 0,25 0,5

Lmin [m] 6 5

Lmax [m] 6 6

pcond [bar] 0,25 0,5

pR [mbar] 850 1000

MIE [mJ] 3÷10 10

MIT [°C] 420 350

Pressure drop

@ 20 m/s

[mmH2O]

33 40

1370 FSA 18 ATEX 3028 X II D (Ø900)

1370 EPT 20 ATEX 3954 X II D

SAFETY NOT RETURN VALVES

NRV COMBO Ø 100 ÷ 700 ATEX CERTIFIED (EN 16447)

Aircom’s safety not return valves are a passive protection system ATEX CERTIFIED EN 16447 against the propagation of explosion in

suction lines.

They are the sure solution to isolate the environments in case of explosion in the suction plants stopping the explosive effect in the suction

line. They are produced in carbon steel painted standard RAL 3020 or stainless steel AISI 304 or AISI 316, welded in all the unions and the

structure is reinforced to withstand high pressures. Our standard production is equipped with flanges and counterflanges compatible with DIN

24154-R1 except for Ø350, 550, 650, 700 and with locking mechanism. The gasket assures the sealing in closed position. Equipped with

supporting slots for Ø350÷700.

TECHNICAL DATA:

Pipe asset: Horizontal

Working temperature: from -20°C to +60°C

Process flux: pull flow

Dust type: not metallic

Minimum applicable volume: see table (Vmin)

ATEX class: 3 - kst = 325 bar*m/s

Pred, max: see table

Pmax: 9,5 bar

MIE: 10÷30 mJ

MIT: 400 °C

Maximum air speed: 30 m/s

Minimum and maximum installation distance:

Lmin = 3m / Lmax = 5m with or without bend

ACCESSORIES ON DEMAND:

Microswitch for closed position

Capacitive sensor for dust deposit detection

Siliconcel gasket

Pneumatic cleaning system

Pneumatic rearm for anti-opening lock (standard for Ø450÷700)

WITH OR WITHOUT

BENDS

Ø NRV COMBO

[mm]

A

[mm]

B

[mm]

C

[mm]

D

[mm]

E

[mm]

H

[mm]

K

[mm]

m

[kg]

F

[mm]

G

[mm]

J

[mm]

I

[mm]

Vmin

[m³]

Pressure drop @ 20 m/s

[mm H2O]

Pred, max

[bar/psi]

100 150 185 415 - 170 - 425 10 340 75 90 - 1,2 67 1.0/14.5

125 175 210 440 - 180 - 445 11 360 88 103 - 1,2 65 1.0/14.5

150 200 235 465 - 195 - 475 12 390 100 115 - 1,2 63 1.0/14.5

160 210 245 475 - 200 - 485 13 400 105 120 - 1,2 61 1.0/14.5

180 230 265 495 - 210 - 505 14 420 115 130 - 1,2 59 1.0/14.5

200 360 360 575 590 270 - 575 31 510 140 155 125 1,2 34 0.6/8.7

250 410 410 625 640 295 - 625 38 560 165 180 125 1,2 34 0.6/8.7

300 460 460 675 690 320 - 675 48 610 190 205 125 1,2 33 0.6/8.7

350 510 530 725 740 345 305 725 58 660 215 230 125 1,2 32 0.6/8.7

400 560 580 775 790 370 350 775 68 710 240 255 125 1,2 32 0.6/8.7

450 610 630 825 970 415 400 825 88 780 295 295 255 5,0 34 0.6/8.7

500 660 680 875 1015 440 455 875 100 830 320 320 255 5,0 37 0.6/8.7

550 710 730 940 1065 465 505 925 112 880 345 345 255 5,0 40 0.6/8.7

600 760 780 975 1115 490 555 975 130 930 370 370 255 5,0 43 0.6/8.7

650 810 830 1040 1165 515 605 1025 155 980 395 395 255 5,0 45 0.6/8.7

700 860 880 1075 1215 540 655 1075 176 1030 420 420 255 5,0 47 0.6/8.7

1370 EPT 20 ATEX 3954 X II D

SAFETY NOT RETURN VALVES

NRV COMBO Ø800÷1200 ATEX CERTIFIED (EN 16447)

Aircom’s safety not return valves are passive elements, CERTIFIED ATEX EN 15089 - 16447 against the propagation of ex-

plosion in suction lines.

A suitable counterweight allows the balancing of the flaps for a regular opening and closing. The valves are supplied with anti-

opening lock.

They are produced in carbon steel painted standard RAL 3020 or stainless steel AISI 304 or AISI 316, welded in all the unions

and the structure is reinforced to withstand high pressures. Our standard production is equipped with flanges and counterflanges

compatible with DIN 24154-R1.

A gasket ensures the sealing in closed position. The valves are

equipped with support slots to sustain the consistent weight.

TECHNICAL DATA:

Horizontal pipe

Temperature range: from –20°C to +60°C

Process flux: pull flow

Dust type: not metallic

Minimum applicable volume: 10 m3

ATEX class: 3 - kst = 325 bar*m/s

Pred, max: see table

Pmax: 9,5 bar

MIE: 10÷30 mJ

MIT: 400 °C

Maximum air speed: 30 m/s

Maximum and minimum installation distance:

Lmin = 3m / Lmax = 6m with or without bend

ACCESSORIES ON DEMAND:

Microswitch closed position

Capacitive sensor for dust deposit detecting

Siliconcell gasket

Ø800÷900

Ø1000÷1200

WITH OR WITHOUT

BEND

Ø NRV COMBO

[mm]

A

[mm]

B

[mm]

C

[mm]

D

[mm]

E

[mm]

F

[mm]

G

[mm]

m

[kg]

H

[mm]

I

[mm]

Pressure drop

@ 20 m/s

[mm H2O]

Pred, max

[bar/psi]

800 980 1025 1130 1330 710 1325 485 290 560 265 16 0.6/8.7

900 1080 1130 1230 1430 760 1425 535 665 335 260 18 0.6/8.7

1000 1180 1225 1215 1525 810 1615 585 610 405 260 38 0.5/7.25

1100 1280 1325 1295 1625 860 1715 635 720 480 260 34 0.5/7.25

1200 1380 1425 1375 1725 910 1815 685 795 535 260 29 0.5/7.25