H74 Wafer Single-Disc Swing Check Valve

The H74 is a wafer-type single-disc swing check valve, characterized by its extremely short face-to-face dimension, single-disc swing mechanism, and wafer-style installation. It is primarily designed for large-diameter, medium-to-high pressure applications in space-constrained environments, balancing the requirements for rapid closure with low flow resistance. Alongside the H71 (lift-type) and H76 (dual-disc) models, it stands as a mainstream choice among wafer-style check valves.

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Specification
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Design Features:
Test & inspection:
GB/T 13927-2022, API598

Main parts and materials

ITEM

PART

MAIN MATERIAL

Body

CF8 CF3 CF8M CF3M WCB

Disc

CF8 CF3 CF8M CF3M WCB

Bolt

Stainless Steel

Main dimensions

DN	L		D1	D
	PN1.0/1.6Mpa	PN2.5/4.0Mpa		1.0Mpa	1.6Mpa	2.5Mpa	4.0Mpa
50	15	19	25	104	104	109	109

65	15	19	38	125	125	129	129
80	16	19	46	140	140	144	144
100	16	19	71.5	160	160	170	170

125	17	19	95	185	185	196	196
150	19	29	114	220	220	226	226
200	26	29	140	270	270	286	293

250	29	38	188	330	330	343	355
300	38	45	216	380	386	403	420
350	38	51	263	440	446	460	477
400	48	55	305	491	495	517	549
450	48	60	356	541	558	567	574
500	58	70	406	596	620	622	626
600	68	78	482	698	732	734	745

700	70	80	562	802	802	831	/
800	75	95	664	910	910	942	/
900	75	95	738	1018	1012	1040	/

1000	90	100	846	1124	1126	1155	/

The dimensions above are for reference only.

Zhongchi Valve Group Co., Ltd. was established in April 2008. The company is a valve manufacturing enterprise that integrates design, development, production, and sales. It is located in the Binhai Industrial Park of Wenzhou Economic and Technological Development Zone.
The company adheres to the corporate tenet of "quality-oriented, innovation-driven, management-efficient, and service-focused", and upholds the business philosophy of "service-oriented and integrity-abiding". We provide customers with reliable quality assurance through advanced technology and scientific management, offers services with a complete range of products and a short delivery time, and strives to achieve the corporate goal of "building an excellent enterprise and creating a brand in the industry". The company has successively obtained ISO9001 international quality management system certification, ISO14001 environmental management system certification, ISO45001 occupational health and safety management system certification, special equipment manufacturing production license TS certification, CE certification, EAC certification, API607 fire protection certification, and has been recognized as a small and medium-sized technology enterprise in Zhejiang Province and a national high-tech enterprise.
The company's main products include ball valves, gate valves, globe valves, check valves, filters, butterfly valves, etc. These products are widely used in various industries such as petroleum, chemical, natural gas, light industry, electric power, pharmaceuticals, dyes, metallurgy, fiber, leather making, textile, food, military, construction engineering, refrigeration, water supply, and more.