Ductile Iron Silent Check Valve

Ductile Iron Silent Check Valve

The silent check valve is composed of a valve body, valve seat, guide body, valve disc, bearing, and spring. The internal flow channel adopts a streamlined design, with small pressure loss and short valve disc opening and closing stroke. It can close quickly when the pump is stopped, preventing a huge water hammer sound and creating a silent effect.

Category:

Lift disc and rubber seat
Design according to EN 1074
Flange connection standard: GB/T 9113, EN1092-2 PN10/PN16, ANSI B16.10 125LB/150LB
Pressure test: EN 12266-1
Size range : 2″ to 16″, DN50 to DN400
Pressure range : PN10, PN16, CL125/150
Applications: water supply, drinking water, irrigation, sewage
Painting: The inner and outer surfaces of the valve are coated with a powder epoxy coating.

Material List:

No. PART NAME MATERIAL
1 BODY DUCTILE IRON
2 BUSHING DUCTILE IRON
3 SPRING SS304
4 STEM 2Cr13
5 SEAL RING EPDM
6 DISC DUCTILE IRON

Dimension List:

 

DN

  

L

 EN1092-2 PN10/16 ANSI B16.1 CL125/150
D K n-φd D K n-φd
50 125 165 125 4-19 165 120.5 4-19
65 145 180 145 4-19 180 139.5 4-19
80 155 195 160 8-19 195 152.5 4-19
100 165 215 180 8-19 229 190.5 8-19
125 180 250 210 8-19 254 216 8-22
150 210 280 240 8-23 280 241.5 8-22
200 250 335 295 8-23/12-23 335 298.5 8-22
250 290 395/405 350/355 12-23/12-27 405 362 12-25
300 310 445/460 400/410 12-23/12-27 480 432 12-25
350 330 505/520 460/470 16-23/16-31 530 476.5 12-29
400 335 565/580 515/525 16-28/16-31 597 539.5 16-29

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