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 about boiler non-return valve without return?
There are two reasons: 1 pipe dirty, need to clean up.2 pressure difference between the two sides of the valve, see the pressure on both sides is how much?
Q:How do I install the pump outlet check valve?
Because the check valve is easy to be damaged, therefore, the check valve shall be installed near the pump outlet, and a shut-off valve (usually ball valve or gate valve) is arranged on the top of the check valve, so that it is easy to overhaul. In order to facilitate the check valve before disassembly pressure relief, the valve itself is not equipped with a net valve, should be installed between the check valve and the shut-off valve with pressure relief valve.
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:Why is the check valve necessary? Why should it be checked back?
Check valve, also known as one-way valve, is designed to prevent liquid, gas and other substances backflow design valve.
Q:What does the check valve "H44Y-160" mean?
Take a look at that JB/T 308 valve model compilation standards, which explain very clearlyH check valve, 4 flange connection, 4 spiral structure, Y is hard sealing hardfacing alloy. 160 is nominal pressure
Q:What kind of check valve is used to prevent the return water?
You should be horizontal check valve, with pressure difference, water pressure is not lost; or a check valve inside where the card, must be a certain pressure to baffle back.
Q:How many kinds of structure are there in the check valve?
3 butterfly check valve structure similar to butterfly valve, its structure is simple, flow resistance is small, water hammer pressure is smaller;4, diaphragm type check valve has a variety of forms, are used as the opening and closing the diaphragm, due to its good waterproof performance, simple structure, low cost, rapid development in recent years, but the use of diaphragm valve temperature and pressure by the diaphragm material limited;
Q:Does the check valve differ in front of the water meter and press it behind the water meter?
According to the specification, check valve (check valve) should be installed behind the watch. If it is placed in front of the meter, it will cause the meter to be inaccurate and damage the meter parts.
Q:Why can't the check valve on the air pipe be used when the wind speed is less than 8 meters?
First of all, you must understand the working principle of the check valve, indeed, as you said, you can adjust the position of the hammer by adjusting the position of the drop hammer.If you are in their own design and production, consider the thickness of the blade, drop hammer size, weight, and other parameters considered.Hope to be of help to you!
Q:What's the difference between check valves and non-return valves?
Check valves are check valvesThe check valve is only a one-way start and stop valve to prevent the flow of fluid medium on all kinds of pipelines or equipment.Check valves are widely used and come in many different types,The following is a common check valve for water supply and heating:1, spring: the liquid from the bottom up, rely on the pressure spring controlled valve,After the pressure disappears, the spring force presses down the disc and seals the liquid back.Often used in the smaller diameter check valve.
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
South America
Eastern Europe
Southeast Asia
Mid East
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Western Europe
Company Certifications ISO9001

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Contract Manufacturing OEM Service Offered
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