Dual Plate Check Valve

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‍Packaging & Delivery of Dual Plate Check Valve

Packaging Details: Standard Plywood Box
Delivery Detail: within 35days


Specifications of Cast Iron Check Valve Wafer Type 


Size from 2" to 48" 

Face to Face:According to ISO Standard 

Flange:Sccording to ANSI/BS/DIN/JIS 

Nominal Pressure:PN10/PN16,125LB/150LB 

Valve Body:Cast Iron 

Disc:Ductile Iron,Stainless Steel,Brass,Bronze Seat:NBR,EPDM Stem:Stainless Steel 


Technical Data of Cast Iron Check Valve Wafer Type 

Size: DN10-DN3000

Power station valve, double-eccentric semi-ball valve, satefy valve, gate valve, check valve, no return valve, butterfly valve, etc.

Nominal Pressure: PN10/PN16  Test Pressure:1.0Mpa-50.0Mpa Sealing: PN11/PN17.6 Shell: PN15/PN24

Working Temperature: -15~ -250

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Q:What type of check valve should be installed before the suction pump?
Self priming pumps are equipped with rotary, rotary or automatic type check valves.Check valve, also known as one-way valve or check valve, its role is to prevent the medium back in the pipeline. Pump water off the bottom valve check valve also belongs to class. Forged steel check valves two body cover to connect the design form: the first is the body cover bolt connection forged steel valve, connected by this form of valve, the valve body and the valve cover bolt connection, spiral wound gasket seal, the advantage of easy maintenance;
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.
Q:The difference between check valve and check valve
One way valve is also called a check valve, the two is the same kind of valve, meaning the same.
Q:I also calculate each pump check valve and gate valve?
Should not be installed, if the installation is repeated, in fact, the original design has satisfied these functions! Gate valve is not necessarily a good thing! Nothing is better than fine! Make good use of the gate valve!
Q:Is the check valve installed at the inlet or outlet of the pump? Why?
The function of the check valve is to prevent the medium from flowing back! Check valves, which are commonly known as check valves! Backflow of medium will cause the reverse of pump impeller, which may lead to the burnout of pump! Pumps used in industry are expensive nowadays! Ha-ha! The check valve just protects the pump and piping!
Q:What is the HC41X-16Q model of the optical valve? What is its main function?
The HC41X-16Q check valve for the light valve is a flanged silent check valve.HC41X-16Q flanged check valve features:An acoustic check valve whose structural characteristics allow only medium to flow in one direction and prevent flow in the direction.
Q:Classification of check valves
Check valves belong to the automatic valve, mainly used for one-way flow of media channels, allowing only medium to flow in one direction, to prevent accidents.Structure check valve (One-way valve): divided by structure, can be divided into lift check valve, swing check valve and butterfly check valve three. 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.Install vacuum check valve (One-way valve): should be installed in the top note of the following things: 1, the pipeline will not bear the weight of the check valve, large check valve (aetv One-way valve): should be independent of support, so that the pressure piping system from the.2, installation, pay attention to medium flow direction should be consistent with the body of the arrow direction.
Q:How can the check valve be distinguished from the cut-off valve?
Stop valve has a handwheel, the general check valve by gravity or spring action, there is no operating mechanism, but the large check valve is there.
Q:How many kinds of structure are there in the check valve?
2. The swing check valve rotates around the shaft. Its fluid resistance is generally smaller than the lift check valve, it applies to larger caliber occasions. According to the number of valves can be divided into single swing type, double valve swing and multi valve swing type of three. Single swing check valves are generally applicable to medium calibre applications. Large diameter pipeline using single swing check valve, in order to reduce water hammer pressure, it is best to use water hammer to reduce the pressure of the slow closing check valve. Double check valves are suitable for large and medium diameter pipelines. Double check swing check valve with small structure and light weight is a kind of fast developing check valve. Multi valve check valve is suitable for large caliber pipeline;
Q:Do you still need to check valve fittings for solar water heater installation?
Generally not required. The function of the check valve is to prevent hot water from flowing back into the water pipe so as to heat the pipe.If you don't worry, you can add one, spend a little money, ask for peace of mind.Now the water mixer which will have a check ball.
Our products are in accordance with different standards, such as API, DIN, JIS, BS, and GB, as well as non-standards. We also provide OEM products according to client requirements. Our products are widely used in oil refinery, petroleum, chemical plant, power station, natural gas, and civil industry. We have obtained ISO9001 International Quality Management System Certificate.

1. Manufacturer Overview

Location Jiangsu,China
Year Established 2001
Annual Output Value US$10 Million - US$50 Million
Main Markets North America
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Company Certifications ISO9001

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