Notice:The original Zhejiang Chaoda valve Co., Ltd upgraded itself to Chaoda Valves Group Co., Ltd, that is the Chaoda Valves Group, and as Chaoda Group for short.

CHAODA

Check Valve

Check Valves

CHAODA valves group is specialized in manufacturing Check Valve with following good characteristics: good sealing performance, reliable safety guarantee, long life span and etc. Check Valve, also known as one-way valve, non-return valve and so on, is an automatic valve opening and closing itself by the force of flowing medium. And Cryogenic check valve is mainly used for preventing the backflow of medium, the reversal of pump & its motor and the discharging of container. 

    CHAODA GROUP WENZHOU E-BUSINESS CO.,LTD. is a wholly owned subsidiary of CHAODA VALVES GROUP CO.,LTD.With  Chaoda valves group( CHAODA group”) quality management and safety system(Get the approvals of ISO9001,ISO14001,OHSAS18001, API6D, CE/PED, API607,API6FA, ISO15848-1, TS and API600 certified),top level developing team(Provincial Key Enterprise research Institute,Provincial Key Enterprise Technology  Innovative Group, Provincial Enterprise Technology Center),advanced machining equipment, well chemical analyst and inspection equipment(Optical Spectrometer, Helium low emission tester, High & Low temperature performance equipment and etc)we could provide our clients with perfect products and satisfied service.

Check Valve

Type: H76H,H71H,H76W,H71W,H76Y,H71Y
Bore: NPS1/2~NPS20,DN15~DN500
Rating: Class150~Class1500,PN16~PN160
Material: Carbon Steel,Stainless Steel,Alloy Steel,Duplex Stainless Steel
Operation: Manual,Gear Operated,Electric Operated,Pneumatic Operated
Applicable: Oil,Chemical,Natural Gas,Petrochemical,Coal Chemical and so on

Honor:Zhejiang Famous Brand,Zhejiang Famous Exporting Brand,Chinese patent...

CHAODA VALVES GROUP CO.,LTD.
 

Check Valve product description

Check valves(Flanged General, Butt-welding Optional) are suitable for using on various kinds of pipeline from Class150 To Class1500, PN16 To PN160 to cut off or connect the flowing of medium. By using different material, the valves could be suitable for medium such as water, steam, oil, nitric acid, acetic acid, oxidizing substance, carbamide and etc. 

    CHAODA GROUP WENZHOU E-BUSINESS CO.,LTD.is wholly owned subsidiary by Chaoda Group,Professional sales CHAODA group products,CHAODA  valve products。CHAODA valves won the reputations of Zhejiang Famous Trademark,Zhejiang Famous Brand,Zhejiang Famous Exporting Brand and also enjoys prizes of 101 National Patent。

Check Valve product features

The features of check valve:Bolted Bonnet; Swing and lift disc; Metallic seating surfaces.

Body and Bonnet Connection:The body and bonnet of Class150~Class900 check valves are usually with studs and nuts. And the body and bonnet of Class1500~Class2500 check valves are usually of pressurized seal design.

Body-To-Bonnet Joint:Stainless steel + flexible graphite wounded gasket is used for Class150 and Class300 check valve; Stainless steel + flexible graphite wounded gasket is used for Class600 check valve, and joint gasket is also optional for Class600 check valve; Ring joint gasket is used for Class900 check valve; Pressurized seal design is used for Class1500~Class2500 check valves.

Seat:For carbon steel check valve, the seat is usually forged steel. The sealing surface of the seat is spray welded with hard alloy specified by the customer. Renewable threaded seat is used for NPS≤10 check valves, and welded on seat can be also optional if being requested by the customer. Welded on seat is used for NPS≥12 carbon steel gate valves. For stainless steel check valve, integral seat is usually adopted, or to weld hard alloy directly integrally. Threaded or welded on seat is also optional for stainless steel check valve if being requested by the customer.

Check valves developed by Chaoda have following good characteristics: good sealing performance, reliable safety guarantee, long life span and etc.

Check Valve standards

 Design and manufacture standards:API 6D, API 594, JB/T 8937, GB/T 12235, GB/T 12236
 Face to face dimensions standards:ASME B 16.10, GB/T 12221
 Connection ends standards:ASME B 16.5, GB, JB, HG, SH, BS, DIN, JIS...
 Testing inspection standards:API 598, GB/T 13927, GB/T 26480, JB/T9092, ISO 5208

Check Valve parts and material

Check Valve main size and weight

CHAODA valves group co.,ltd. Professional manufacturing Check Valve.

 

How to Order:   

1.Clients could call telephone +86-0577-67319962 or email CHAODA@chinavalve.com us your enquiry including following information.

①Valve’s type, End to End dimension ②Connection Ends ③Nominal diameter ④Service medium and temperature and working pressure range
⑤Material, test standard and other requirement ⑥CHAODA could supply all kinds of actuator and spare parts and so on as client’s requirement.

2.When received clients’ enquiry, we would select the suitable valves for your and give you a offer.

3.And have a communication over the Check Valve delivery or other special requirement.

4.When have special requirement on your Check Valve products, please specify it in the purchasing order.

5.Should you have any question, please send email to CHAODA@chinavalve.com