Wafer Check Valve Universal Standard

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50 Pieces pc
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50000 Pieces Per Month pc/month

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Product Description:


‍Packaging & Delivery of Double Disc Wafer Swing Check Valve 

Packaging Details: Veneer board boxes
Delivery Detail: Within 35 days after confirm of order(according order quantity)


Specifications of Double Disc Wafer Swing Check Valve 


1. Size: DN50-DN600

2. pressure: PN16, CL125/150

3. Seal: NBR / EPDM

4.CI,DI,SS Body

Technical specificatiion:

1)valve Design and production according to ASMEB16.34,BS1873 and GB/T12235;

2)The sizes of flange ends according to ASME B16.5,GB/T9113 and HG20596 (or specified by customers);

3)Inspecting standard: API598, JB/9092

4)valve Material: WCB,Stainless steel,carbon steel etc


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Q:Are the common check valves stand upright or horizontally installed?
1 straight through lift check valve should be installed in horizontal pipe, when the media to stop the flow, the valve by the weight of landing on the seat to prevent the media back; because the vertical lift check valve medium inlet and outlet channel direction and the direction of the valve seat, so it must be installed in a vertical pipe.
Q:To prevent water meter rotation, where should the check valve be installed?
Place it at the top of the water meter, as you can see, near the valve
Q:40 how large check valves are installed in the water pipes?
Crown valve press40 of the pipe outer diameter of 48 DN40 check valve on it
Q:Are the gate valves and check valves of the same type?
Not the same gate valve, it is a kind of opening and closing function (i.e. switch) of the valve, it is on the gate lifting and play the role of the switch, the switch is to be applied by external force (hand wheel, electric, pneumatic and hydraulic) it is not required to;
Q:What type of check valve should be installed before the suction pump?
second body cover seal welded forged steel check valve, connected by this form of valve, the valve body and the valve cover are connected by screw, all welded seal, the advantage of no leakage.
Q:Installation of stainless steel tank outlet must be equipped with check valve?
Outlet?If the delivery is not waterIf the pump is pumped up, it should be loaded
Q:Detailed distinction between backflow preventer and check valve
The backflow preventer consists of two separated check valves and a drain valve. Due to the local head loss of the check valve, the pressure in the middle cavity is always lower than the pressure at the inlet. This pressure difference causes the drain valve to be closed and the pipe is in normal water supply. In abnormal pressure (i.e., the outlet pressure is higher than that of the middle cavity), even if the two check valve can not reverse sealing, safety relief valve can automatically open the reverse water emptying, and the formation of air separation, ensure the health and safety of water upstream.
Q:What are the brands of check valves?
Also known as check valve, one-way valve, counter flow valve, and back pressure valve. The check valve belongs to an automatic valve, whose main function is to prevent the backflow of medium, prevent the reverse of pump and drive motor, and release the container medium.
Q:How to control the common flue return and smoke return?
How to control the common flue return valve, smoke return to smoke, kitchen flue check valve string smoke smoke? This is everybody wants to know about the fault, the most important problem is to put on the wall of the check valve is not sealed, now on the market to sell the check valve check valve check valve is not sealed, the check valve inside the material generally for metal, plastic. Check valve is the main thrust itself hard material, the valve body and so hard hard together with the no seal function, this is the public flue check valve to return back to tobacco smoke, kitchen flue non-return valve on cigarette smoke leakage of the major mistakes!Now houses are tall buildings, kitchen flue only one, every household fumes are discharged inside. Governance public kitchen flue, non-return valve, smoke, smoke, smoke and smoke leak is very simple, we designed a flue check valve, perfectly solved all the problems of soot backflow. Our flue check valve is the use of silicone sheet with soft seal, as long as a closed, a little smoke can not enter, and structure of the ordinary check valve is completely different, can thoroughly solve the oil return, to play the role of deodorant, anti back. And exhaust air super large, up to 180MM, installation is very convenient, they can be installed.
Q:Can the exhaust air outside the wall be fitted without a check valve?
What you are talking about is the backflow blower of the exhaust fan. This is usually installed. It is a method of preventing the air stream from returning under the condition that the fan stops running. If your fan is only a common wall exhaust, you can not install it, but if it is a discharge of air pollution or dilution of dangerous air flow, then advise you to install it as well.
We mainly produce various check valves (for example,single disc swing check valve,double disc swing check valve,ball check valve,lift check valve, butterfly valves,diaphragm valves ,ball valves and so on). Our products are widely used in municipal water and wastewater ,oil,chemical, food and other fields.Our entire valves are designed and manufactured according to ANSI (ASME), DIN, BS, JIS and other standard. Also, we ensure the best quality for customers, and our strict quality assurances systems are conducted throughout the entire production at the standard of ISO9001:2008 and CE.

1. Manufacturer Overview

Location Shandong,China (Mainland)
Year Established 2002
Annual Output Value US$2.5 Million - US$5 Million
Main Markets 40.00% Western Europe
10.00% Mid East
10.00% Southeast Asia
10.00% Africa
10.00% Eastern Asia
5.00% South America
5.00% Eastern Europe
5.00% Northern Europe
2.00% North America
Company Certifications ISOT19001:2000;CE

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port QingDao
Export Percentage 91% - 100%
No.of Employees in Trade Department 3-5 People
Language Spoken: English, Chinese
b)Factory Information  
Factory Size: 10,000-30,000 square meters
No. of Production Lines 9
Contract Manufacturing OEM Service Offered Design Service Offered
Product Price Range Average