ZhengFeng Slient Check Valve is used in high-rise buildings, fire protection systems, cooling and circulating water systems.
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Application
Product Scope: NPS 2” ~ NPS20” , 10bar ~ 25bar
Features:
Operates Horizontally or Vertically
Non-Slam Closure
Field Replaceable Parts
Optional Resilient Seat
Face to Face Dimensions:AMSE B16.10
Flange End Dimension :AMSE B16.10
Coating: Fusion Bonded Epoxy Coating
Inspection and Test：API 598 / ISO 5208 / EN 12226-2
|
Part |
Material |
EN Spec. |
|
Body |
Ductile Iron |
EN-JS1050 |
|
Disc |
Stainless Steel 420 Stainless Steel 431 |
BS970 420S37 BS970 431S29 |
|
Shaft Sleeve |
CuZn36Pb1As |
EN12164 |
|
For materials options not listed,consult factory. ZhengFeng manufactures valves in more than 50 different alloys. |
||
|
NPS |
In |
2 |
2 1/2 |
3 |
4 |
5 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
|
L |
mm |
105 |
142 |
160 |
175 |
190 |
215 |
225 |
250 |
300 |
350 |
400 |
450 |
500 |
|
D |
mm |
165 |
185 |
200 |
220 |
250 |
285 |
340 |
405 |
460 |
520 |
580 |
640 |
715 |
|
D1 |
mm |
125 |
145 |
160 |
180 |
210 |
240 |
295 |
355 |
410 |
470 |
525 |
585 |
650 |
|
D2 |
mm |
99 |
118 |
132 |
158 |
184 |
211 |
266 |
319 |
370 |
429 |
480 |
548 |
609 |
|
b |
mm |
19 |
19 |
19 |
19 |
19 |
19 |
20 |
22 |
24.5 |
26.5 |
28 |
30 |
31.5 |
|
n-φ |
mm |
4-φ19 |
4-φ19 |
8-φ19 |
8-φ19 |
8-φ19 |
8-φ23 |
12-φ23 |
12-φ28 |
12-φ28 |
16-φ28 |
16-φ31 |
20-φ31 |
20-φ34 |
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