4A F51 5A F55 Non-return Valve Check valve

Short Description:

Swing Check Valve is used to prevent back flow in the line. Flow is in a straight line through the valve resulting in minimal pressure drop. The disc swings into the open position as the media flows through the line. Back pressure in the line holds the disc in the closed position. Swing check valves may be installed in horizontal or vertical lines, but must be installed in proper relation to the media flow as indicated by the flow direction arrow marked on the body.

Product Range
-Valve size:
2″ ~ 36″ (DN50-DN900)
-Pressure:
ANSI Class 150~2500(PN16-PN420)
-Temperature:
-196ºC~ 500ºC
-Body Materials:
Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
-Trim (Disc/Stem):
Carbon Steel, Stainless Steel, Duplex Steel, Alloy Steel

Technical Specifications
-Design: ASME 16.34/ API 6D/ API 600/ BS 1868
-Face to Face: ASME B16.10
-End Flange: ASME B16.5, ASME B16.47
-BW End: ASME B16.25
-Test: API 598/API 6D/ BS 6755
-Special: NACE MR-01-75

Size and Dimensions:

Class	Dimensions(mm)
	NPS(inch)	2	2-1/2	3	4	5	6	8	10	12	14	16	18	20	24	28	32	36
	DN(mm)	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800	1000
150LB	L	203	216	241	292	330	356	495	622	698	787	864	978	978	1295	1448	1727	1955
150LB	H	165	175	190	215	240	265	320	365	415	460	495	550	590	650	838	1016	1092
300LB	L	267	292	318	356	400	444	533	622	711	838	864	978	1016	1346	1499	1727	2083
300LB	H	190	205	220	245	270	295	330	420	480	535	585	615	685	785	889	1016	1143
600LB	L	292	330	356	432	508	559	660	787	838	889	991	1092	1194	1397	1600	-	-
600LB	H	210	230	255	295	335	365	420	505	545	600	650	735	800

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Specifications

Nominal diameter:1/2″~48″(DN15~DN1200)
Pressure range: Class150~2500(PN16~PN420)
Body Materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
Trim (Disc/Stem): Carbon Steel, Stainless Steel, Duplex Steel, Alloy Steel
End Connection: RF,RTJ, BW
Working temperature:-196ºC~+560ºC
Suitable Medium: Water, Steam, Oil and natural gas etc.( Different raw material for different medium) Cryogenic, soft seat insert design available for tight shut off where required.
Design and Manufacture: BS 1868,ASME B16.34,API 6D
Inspection and Test: API598,API600 or API 6D,DIN 3230
End Flange Dimension: DIN 2543-2545/DIN 2501,ASME B16.5(for NPS≤24,ASME B 16.47 series B,API 605,ASME B16.47 A Series,MSS SP-44(for NPS>24)
BW end Dimension: ASME B16.25
Face to Face and End to End: ASME B16.10, MSS SP-71 DIN3202 F1 , BS4090 /BS5153
Pressure-temperature ratings: ASME B16.34
Wall Thickness Dimension: API 600,BS 1868

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