WCB Swing check valve

Size2″~36″ (DN50~DN900 mm)

OperatedN/A

Conection endDouble Flange Type

Conection standardPN10 / PN16 / PN25 / PN40, 150LB / 300LB / 600LB

Working pressurePN16 / PN25 / PN40 / PN63 / PN100

Body materialWCB, Stainless steel, Duplex steel

Disc materialWCB, Stainless steel, Duplex steel

Seat materialCr13, Stainless steel, Duplex steel

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Product Details

A ‌Swing Check Valve‌ is a type of ‌check valve‌ designed to allow fluid flow in one direction while automatically preventing backflow (reverse flow). It operates using a hinged disc (or "flapper") that swings open or closed in response to fluid dynamics.

Technical Standard:
1.Design Standard: GB/T 12236/API 6D
2.Face to face: GB/T 12221/ASME B16.1.
3.Flange Standard: EN1092-2/ASME B16.5.
4.Test Standard: GB/T 13927/API 598.

Product Advantages&Our Service:
1.‌Disc:‌ A disc or door-shaped element that seals against the valve seat.
2.‌Hinge Pin:‌ A pivot point allowing the disc to swing freely.
3.‌Valve Body:‌ Typically flanged (bolted).
4.‌Seat:‌ Precision-machined surface where the disc seals to block reverse flow.
5.Low Pressure Drop:‌ Disc retracts completely into the valve body, creating an unobstructed flow path → ideal for high-flow/low-head-loss applications.
6.‌Suitable for Large Pipe Sizes:‌ Preferred for pipelines ≥2 inches (DN50) due to simple scaling.
7.‌Handles Slurries/Viscous Fluids:‌ Less prone to clogging vs. dual plate valves; tolerates suspended solids better.
8.‌Simple & Robust:‌ Fewer moving parts → low maintenance and high reliability.
9.Pressure Testing Report,3.1 Certificate of Material can be provided.

Face to face dimension:

DN	mm	15	20	25	32	40	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800	900
DN	inch	1/2	3/4	1	1-1/4	1-1/2	2	2-1/2	3	4	5	6	8	10	12	14	16	18	20	24	28	32	36
L（PN16）		130	150	160	180	200	230	290	310	350	400	480	550	650	750	850	950	1050	1150	1350	1450	1650	1850
L（PN25）		130	150	160	180	200	230	290	310	350	400	480	550	650	750	850	950	1050	1150	1350	1450	1650	1850
L（PN40）		130	150	160	180	200	230	290	310	350	400	480	550	650	750	850	950	1050	1150	1350	1450	1650
L（PN63）		165	190	210	230	260	300	340	380	430	500	550	650	775	900	1025	1150	1400

DN	mm	40	50	65	80	100	125	150	200	250	300	350	400	450	500	600
DN	inch	1-1/2	2	2-1/2	3	4	5	6	8	10	12	14	16	18	20	24
L（150LB）		165	203	216	241	292	330	356	495	622	698	787	864	978	978	1295
L（300LB）		241	267	292	318	356	400	444	533	622	711	838	864	978	1016	1346
L（600LB）		241	292	330	356	432	508	559	660	787	838	889	991	1092	1194	1397

The data is for reference only, please consult sale@valflovalve.com for details.

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WCB Swing check valve

Product Details

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