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
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
- Q:Automatic water tower water reflux, plus a check valve not supposed
- Check the direction of the installation is correct, check valve quality is good, you can install two check valve. Check valve refers to rely on the flow of the media itself and automatically open and close the valve flap, used to prevent media backflow valve, 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:Butterfly check valve should be equipped with special flange for butterfly valve
- No, with a special appearance Jansen point flange butterfly valve. It can barely be installed without special flanges
- Q:Which type of check valve should be selected for vertical pipes?
- The check valve on the vertical pipeline shall ensure that the spool goes back to its position when the fluid is stationary and reversed.Optional:Butterfly check valves, pipes of low pressureVertical lift check valve, high pressure resistance, good tightnessSwing check valve: flow must be from the next up, the pipe diameter is unlimited
- Q:The working principle of the vacuum check valve
- The lift check valve can be divided into two types: vertical and horizontal. Swing check valve is divided into single, double valve and multi flap type of three. Butterfly check valve for straight through, more than a few kinds of check valve, in the form of connection can be divided into thread connection, flange connection and welding three.
- Q:Is the check valve the same?
- The same thing, the different name, the appraisal finishedPrices vary greatly, probably due to specifications, material, performance and other differencesIf you need to know more, you can call me, see the user name is my Unicom number
- Q:What are the brands of check valves?
- 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:Check valve selection
- (1) for high and low pressure check valves under DN50mm, vertical lift check valves and straight through lift check valves shall be used.(2) for low pressure check valves under DN50mm, butterfly check valves, vertical lift check valves and diaphragm check valves shall be used.(3) for DN larger than 50mm, less than 600mm high and medium pressure check valve, it is better to use the swing check valve.(4) for DN is larger than 200mm, less than 1200mm of medium and low pressure check valve, should choose no wear ball check valve(5) for DN larger than 50mm, less than 2000mm low pressure check valve, butterfly butterfly valve and diaphragm check valve should be selected.(6) for the requirements of closing perfume, impact is relatively small or no water impact on the pipeline, you should choose the slow closed swing check valve, butterfly butterfly valve.(7) for the import pipeline pump, should use the bottom valve.
- Q:How to use the check valve when the size of the pressure?
- 1) check valve: generally applicable to clean medium, should not be used for containing solid particles and viscosity medium.2), for the low pressure below DN50mm check valve, check valve should be selected on the clip, vertical lift check valve; for DN is greater than 200mm, less than 1200mm in the low pressure check valve, should use micro slow close check valve, water hammer eliminating buffer device with valve and check valve; for the low pressure DN is greater than 50mm, less than 2000mm should use check valve, butterfly valve and swing check valve.3), micro slow close check valve for easy to produce water hammer piping on the micro resistance slow closing system can well eliminate the media generated when the water hit counter, but limited by the temperature and pressure, generally used in low temperature pipe.4) for the closing of the water shock or small impact of the water pipeline, it is appropriate to use micro resistance slow closing check valve and buffer butterfly check valve.
- Q:Is it necessary to install a check valve in front of the water meter? Does the water company have a definite requirement?
- To install a check valve, or, when the tap water supply, there is water in the pipe will flow back, but the water meter will not reverse, if there is air in the water pipe, this phenomenon continues to cycle, virtually increase the number of water charges
- Q:Can the exhaust air outside the wall be fitted without a check valve?
- The backflow valve of the exhaust fan is usually installed. It is a method to prevent the air flow from returning to the fan when it is stoppedIf your fan is just outside the wall, you can't install it,But if it is a blast of contaminated air or a dilution of dangerous air flow, it is better to have it installedCheck valve refers to rely on the flow of the media itself and automatically open and close the valve flap, used to prevent media backflow valve, also known as check valve, one-way valve, counter flow valve, and back pressure valve.
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
|Annual Output Value
||US$2.5 Million - US$5 Million
||40.00% Western Europe
10.00% Mid East
10.00% Southeast Asia
10.00% Eastern Asia
5.00% South America
5.00% Eastern Europe
5.00% Northern Europe
2.00% North America
2. Manufacturer Certificates
|a) Certification Name
3. Manufacturer Capability
||91% - 100%
|No.of Employees in Trade Department
||10,000-30,000 square meters
|No. of Production Lines
||OEM Service Offered Design Service Offered
|Product Price Range