Wafer Check Valve Universal Standard

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 50 Pieces pc

Supply Capability:: 50000 Pieces Per Month pc/month

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‍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

Q: Can the flue check valve and kitchen check valve protect against odor?: Not really. It depends on what valve it is. If it is a variable pressure air valve, of course, if it is an ordinary other valves, generally only temporary role. Five residential home kitchen platoon smoke system is the application of this variable pressure air valve.

Q: What kind of check valve is used in the sewage pump of sewage treatment plant?: 3. to prevent hydraulic impact on the check valve sealing surface damage protection measures, check valve settings, to prevent the backflow of material, pump impeller to avoid the impact of the role of liquid. But as for the check valve itself, improper setting will cause a sudden impact of the disc on the valve seat by the water hammer, and damage the check valve sealing surface. Therefore, several protective measures should be taken. 1, for the pump outlet set >80mm swing check valve, horizontal installation should be adopted to weaken the valve seat back and the impact. 2, for the pump outlet check valve >=150mm diameter of the pipeline, should be placed before and after the bypass valve, to prevent the pressure before the valve rises too high, the check valve sealing surface damage. 3, the pump discharge pipeline starting and ending pressure is higher, the pipeline is not allowed to set the bypass, you can take the following measures. Set up safety valve instead of bypass valve. The action is similar to that of the bypass valve. It is located near the check valve outlet. When the water hammer causes the pressure to rise, a part of the water can be released to prevent the damage caused by the pressure rising. An air or inert gas buffer tank can be set. It is located near the check valve outlet, and when the water hammer is produced, the pressurized gas is compressed through the buffer tank to alleviate the pressure rise caused by the water hammer.

Q: The difference between swing check valve and lift check valve: Swing check valve, swing check the valve to the disc valve seat around the channel axis for rotation, because the valve channel into a streamlined, flow resistance than the small valve lift check, suitable for large caliber occasions in low flow and no flow frequently change, but should not be used for the pulsating flow, the sealing performance is less than lift. Swing check valve is divided into single, double, and most types of three, the three forms mainly by the valve bore points, the purpose is to prevent the media to stop flow or reverse flow, weakening the hydraulic impact.

Q: Why should the check pipe be added to the chilled water pipe of the air conditioning unit?: Check valves are usually installed at the exit of a group of pumps. I have not heard of the installation of check valves at the location of the air conditioning unit.The function of the check valve is to prevent backflow. Prevent backflow of water in water pipe and knock out impeller of water pump.

Q: How much is the 6 point check valve for the water pipe at home?: Different places, different prices, it is estimated that 20-30 copper. Complete check is impossible, and the effect depends on the actual situation,

Q: The check valve on the air pipe is installed in front of the fan and is there any difference in the back (direction is correct)?: Installed in front of the wind blowing, the top open check valveIt is difficult to install the check valve, which is installed on the rear by the force of air suction.

Q: Only one is a soft seal and one is hard sealed: Swing check valve is a check valve, the structure of the valve for the rotation of the axis of the general term, rubber valve check valve is people's usual name for H44X, only a swing check valve

Q: What are the types of check valves?: Taiwan reasonable, this may not have domestic, if you can name, you can call three one-way valve, we can see in accordance with the structure of the spring type.Front Ze valve provides: hope to adopt!!!I hope I can help you.

Q: What does the check valve "H41F" mean?: According to the provisions of the JB/T 308-2004 valve type programming method:H== check valve4== connection: flange type1== structure form: lifting typeF== sealing surface material: fluorine plastic

Q: How does the check valve work?: Only one-way flow, blocking the valve seal, liquid can not be returned.

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
Range
Reference
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