Application: Industrial Usage, Water Industrial Usage
Body: Ggg40/45/50
Seal: NBR/EPDM
Connection: Flanged BS 4504
Equip: Lever and Weight
Pressure Rate: Pn10/16
Coating: Epoxy Coated to 300 Microns
Disc: D.I+EPDM Coated
Trademark: Walter
Transport Package: Bubble Bags & Wooden Case
Origin: Suzhou, Jiangsu
HS Code: 8481300000
Product standard
Flange connection standard:GB/T17241.6  BS EN1092-2  ASME B16.1
Structural length standard:GB/T12221  BS EN558-1 ASME B16.1
Test standard:GB/13927  BS EN12266-1  API598

technical parameter
inside nominal diameter : DN50 ~ DN300(2''~24")
Nominal pressure : PN16
working temperature : -5ºC--85ºC
Pressure  Testing :
-Shell : PN*1.5
-Seal : PN*1.1
Applicable medium : water ,sewage

Part Descripition 
1- Body/Bonnet: GGG40/50
2- Stem: SS420/431
3- Bolts/Nuts: SS304
4- DISC: GGG40/50 + EPDM Coating
5- Epoxy Resin coating internal & external, thickness above 300 micron
6- Flanged acc to BS4504, ISO 7005. Face to Face acc. to BS 5153,DIN 3352
7- Work pressure: PN10/16; Size range: 1",1 1/2", 2" to 24"

Dimensions(mm)
Model Size DN L D D1 D2 n-Φd PN10 n-Φd PN16
NRS-0050 2" 50 203 165 125 99 4-Φ19 4-Φ19
NRS-0065 21/2" 65 216 185 145 118 4-Φ19 4-Φ19
NRS-0080 3" 80 241 200 160 132 8-Φ19 8-Φ19
NRS-0100 4'' 100 292 220 180 156 8-Φ19 8-Φ19
NRS-0125 5'' 125 330 250 210 184 8-Φ19 8-Φ19
NRS-0150 6'' 150 356 285 240 211 8-Φ23 8-Φ23
NRS-0200 8'' 200 495 340 295 266 12-Φ23 12-Φ23
NRS-0250 10'' 250 622 405 355 319 12-Φ28 12-Φ28
NRS-0300 12'' 300 698 460 410 370 12-Φ28 12-Φ28
NRS-0350 14'' 350 787 520 470 429 16-Φ28 16-Φ28
NRS-0400 16'' 400 914 580 525 480 16-Φ31 16-Φ31
NRS-0450 18'' 450 914 640 585 548 20-Φ31 20-Φ31
NRS-0500 20'' 500 978 715 650 609 20-Φ34 20-Φ34
NRS-0600 24' 600 1100 840 770 720 20-Φ37 20-Φ37

Iron Flange Cast Iron Check Valve / Non-Return Flap Valve
Iron Flange Cast Iron Check Valve / Non-Return Flap Valve

Iron Flange Cast Iron Check Valve / Non-Return Flap Valve

Iron Flange Cast Iron Check Valve / Non-Return Flap Valve


Iron Flange Cast Iron Check Valve / Non-Return Flap Valve

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Iron Flange Cast Iron Check Valve / Non-Return Flap Valve

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