China Swing Check Non Return Valve Suppliers, Manufacturers, Factory

Swing Check Non Return Valve

Know more about the China check Valve

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.

How much do you know about Non Return Valve

Product specification:

Design spec

Face to face

Flange end

Test & check

Pressure-temp

Marking

Supply

GB/T 12236

GB/T 12235

GB/T 12221

JB/T 79

JB/T 9092

GB 9131

GB-T12220

JB/T-7928

Main part material:

Part name	Body material
Body/bonnet	WCB	WC6	LCB	CF8M
Disc	25	1Cr18Ni9Ti	1Cr18Ni9Ti	1Cr18Ni9Ti
Swing arm	WCB	25Cr2MoV	LCB	CF8M
Graphite gasket	18/8 flexible graphite
Bolt	35/35CrMo	25Cr2MoV	1Cr18Ni9	1Cr18Ni9
Suitable temp	-29-425℃	-29-550℃	-46-350℃	-40-550℃
Suitable medium	Water,oil,steam	Steam,oil	Propane,ethene	Nitric acid

check valves

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
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
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	-	-
H	210	230	255	295	335	365	420	505	545	600	650	735	800	965

swing check valve

The Casting Technology for fully weld check valve

check valve casting

Transportation of check valves

China check valve factory supplier

Our service for non return valves

1. OEM Factory : Professional manufacturer, clients from whole world. A group of highly experiencedtechnical engineers is right here waiting for any of your requests.

2. High Quality, Competitive Price: Custom is accepted.

3. Complete Service: Long service Life, Fast delivery, Multilingual services.

4. Low MOQ: Ready for providing the sample and producing some small orders.