Design: API 6D, BS1868
Matermial: WCB, CF8, CF8M, CF3M
Class: 150, 300, 600, 900, 1500, 2500
End conn.: Flange, B. W
Cast Steel Swing Check Valve
The information of Cast Steel Swing Check Valve
Bolting
The body-cover bolting conforms with ANSI B. 1.1
The nuts are manufactured conform with ANSI B18.2.2
Cover
The cover material is identical to the body.
Depending on the valve size and pressure class, either a casting or a forging is used.
Hinge Pin
The hinge pin is inserted into the valve and held in position by plug.
The larger size valves are provided with bolted flanges instead of plugs.
Arm
The arm material is identical to the body.
Hinge bushing is provided in the larger valve sizes to minimize friction and eliminate seizing.
Seat Ring
The bottom seated type seat ring is screwed into the body.
The seating surface is finished by lapping.
The forged seat ring is heat-treated to deliver the best mechanical properties and required hardness.
Disc
The disc has a sufficient seating surface area which is ground and lapped to a mirror finish.
It is of one-piece construction and is heat treated to deliver the required mechanical properties and hardness.
Body
The cast steel body is designed with a wall thickness which is greater at any point than the minimum requirement provided by API Std. 600 or API 6D. Port and seat passage dimensions conform to ANSI B16.5 Pipe Fitting. The welded-in type seat ring is standard to allow interchangeability.
The standard body-bonnet joint is male-fernale, and the flange is round for all valves.
Major Products and Services: API valves, JIS gate valve. Check valve, American standard valves.
Zhongquan Group Valve Co., Ltd. Founded in 1985, located in the Dongou Industrial Zone of Wenzhou City, Zhejiang Provice, China. The registered capital of the company is RMB 100.08 million (about USD 13 million). Now it has 580 staffs and 105 engineering technicians, owns an advanced valve checking center, has set up a computer control center, Auto CAD/CAM computer auxiliary design and auxiliary processing soft ware, which effectively guarantees the progress of product's development, design, manufacture and quality control and so on. The company has passed ISO 9001 quality system certification of England National Quality Assurance Co., Ltd. (NQA).
The company mainly manufactures the valves with such standards as American ANSI/API, Japanese JIS, German DIN and Chinese GB. It's main products including Gate Valve, Globe Valve, Check Valve, Ball Valve, Butterfly Valve, etc. The size ranges from DN15 to DN1050. The pressure ranges from Class 150 to Class 2500. And the main materials of the products are WCB, WCC, WC6, WC9, CF8, CF8M, CF3, CF3M, LCB, A105, etc. We can produce according to the clients' special requirements. The products are widely applied to the field of petroleum, chemical, metallurgical, power, fuel gas, city pipeline networks and so on. Our products are exported to Southeast Asia, Europe, Unite States, Middle East and other countries. with high content of technology and reliable quality, our products enjoy a good reputation.
The company centered on market, relied on quality, set up service companies or branch agencies in large and medium cities of the country and formed a systematical sales service network. Seeking the working style of "Quality guarantee, efficiency, practice and eternity", based on the principle of "mutual benefit and superior reputation", our company looks forward to cooperating sincerely with any partners if possible and to creating a beautiful future.
