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non return valve working

DIN/GOST/GB Carbon Steel DN500 PN40 Non-Return Swing Check Valve

A. Allowed Leakage rate: ≤ 0.1mm3/sec*size;
B. High temperature pre-painting, antirust and anti-corrosion process;
C. Caple of withstanding temperature of 300° C, continuous and 350° C short term exposure.
1) Size: 50A~800A;
2) Pressure class: 10K ~40K;
3) Temperature: -29° C ~ 425° C;
4) Body/Bonnet: A216 WCB, Silver or Stainless Steel

Design Standard: ANSI B16.34
Flanged Standard: JIS B2220 FF 10K
Face to Face Standard: JIS B2002
Inspection and testing Standard: JIS B2003

5) Suitable medium: Water, oil, vapor, gas;
6) Body material: WCB, WC1, WC5, WC6, WC9, C12, CF3, CF8, CF3M, CF8M;
7) CF8/SS304 disc, CF8 nuts;
8) Operation: Manual control, gear operated, motor actuated

DN mm	in	L	D	D1	D2	b	n-φd	H	D0	W(kg)
50	2	203	155	120	100	16	4-19	165	165	17
65	21/2	216	175	140	120	18	4-19	175	175	25
80	3	241	185	150	130	18	8-19	190	190	29
100	4	292	210	175	155	18	8-19	215	215	50
150	6	406	280	240	215	22	8-23	265	265	85
200	8	495	330	290	265	22	12-23	320	320	150
250	10	622	400	355	325	24	12-25	365	365	240
300	12	698	445	400	370	24	16-25	415	415	35
350	14	787	490	445	415	26	16-25	460	460	460