Wafer Type Dual Plate Check Valves

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Min Order Qty:
50 set
Supply Capability:
5000pcs/month set/month

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Product Description:

Wafer Type Dual Plate Check Valve

Specification of Water Check Valve:

We manufacture top quality Wafer Type Dual Plate Check Valve made from cast iron, cast steel and stainless steel. Wafer Type Dual Plate Check Valves offered by us can be availed in various types like dual plate; single disc type and non slam check valves to meet the different requirements of the customers. We are identified as one of the celebrated Wafer Check Valves Suppliers in China.

Wafer body style fits between FF or RF flanges
Upper and lower PTFE thrust washers
Dual plate Valves give maximum strength with minimum opening time
Torsion springs assist Valve closure, preventing flow reversal
Thrust washer reduce friction and wear of Valve plate hinges

 

Features of Wafer Check Valve :

 

1. Small and light, tightly sealed. Less expensive than swing check valve.

2. Two torsion springs are used exerting on each of the pair valve plate, which close the plate quickly and automaticlly

3. The quick-close action prevents the medium from flowing back and eliminates water hammer effectively. 

4. Can be installed both horizontal and vertical on pipeline

5. Safe and reliable in operation, high interference-resistance.

 

Materials of Water Check Valve:

 

Specifications

Size

DN50-DN700

Design standard

API609

End flange

DIN/ANSI/BS/JIS

Face to falce

ISO5752

Main Parts and Materials

Body

CI/DI/WCB/SS

Disc

DI/ALB/WCB/SS

Stem

SS304/SS316/SS420

Seat

EPDM/BUNA/NBR/PTFE/HYPALON/VITON/NEOPRENE

Spring

SS304/SS316

Applications

Temperature

-15°C~150°C

Medium

 Water/gas/Oil

 

 

 

Packing of Wafer Check Valve:

Wooden boxes

 

Delivery Date of Water Check Valve:

50 days

 

 

Check ValveCheck Valve Package

 Check Valve Factory

 

 

 

 

 

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Q:What is the working principle of the flue check valve?
The flue check valve refers to the automatic opening and closing valve plate, which is used to prevent the backflow of soot through the thermal flow of the range hood. It is also called a flue check valve, a smoke prevention treasure and a flue isolator.
Q:How to install the kitchen flue check valve?
First, we should pay attention to the direction of check valve opening, open the location to smoke pipe opposite;Second, we should pay attention to check valve and common flue or after the installation of household flue sealing point, if the conditions are called thick putty plugging;Third, after the check valve is installed and fixed, the smoke exhaust pipe should be tightly packed with the check valve.Remark: when choosing check valve, choose a brand with better sealing effect, such as submarine.
Q:Are check and check valves the same kind of thing?
The same thing is not the same as it is
Q:What is the check valve?
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.The opening and closing parts depend on the flow of the medium and the power is turned on or off by itself. The valve that prevents the backflow of the medium is called a check valve. 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.
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:With no negative pressure water supply, the pump is equipped with a check valve, the construction ring network also needs to install check valve?
With no negative pressure water supply, the pump is equipped with a check valve, the construction ring network also needs to install a check valve, or else the water pump may enter the ring network.
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:The difference between the plunger type check valve and the lift check valve
Lift check valve is 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. The check valve can also be used to provide a supply to the auxiliary system where the pressure may rise above the system pressure. The check valve can be mainly divided into swing check valve (rotating by gravity center) and lift check valve (moving along the axis).Hope to be of some help to 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:What are the specifications of the DN200 check valve?
The silent check valve is suitable for water supply and drainage, fire fighting and heating and ventilation systems. It can be installed at the outlet of water pump to prevent the backflow of medium and the damage of water hammer to the pump.Liquid control check valve is suitable for the pump outlet pipe of medium water, as closed circuit and check valve. It is used to avoid and reduce the medium prosperity, reverse flow and excessive water hammer in pipeline system, so as to protect pipeline system.The swing of 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. Swing check valve 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 suitable for medium calibre applications.The structure of the lift check valve is similar to that of the globe valve. The valve is used to move up and down along the channel. The action is reliable, but the resistance of the fluid is large. It is suitable for light and small caliber occasions. Lift check valves can be straight through and vertical two. Straight through lift check valve can only be installed in horizontal pipe, vertical lift check valve is usually installed in vertical pipe.The micro resistance slow closing check valve is used for the water supply and drainage pipeline and is installed at the outlet of the water pump to prevent the medium reverse flow and eliminate the destructive water hammer, and can effectively reduce the water hammer pressure of the valve closing, and can ensure the safe operation of the pipe network.
SUPERB VALVE, With good quality, our products have got favorable comment of domestic and international customers. And the good situation of demand over supply has also been formed. has five hundred stuff members, one hundred and fifty technicians and the fixed assets of 31 million Yuan. With one scientific research organ, ten sections, four workshops and three hundred and eighty sets of all kinds of equipments, it can produce 10,000 tons of products per year,70% exports a product. Show specialized production German,British,Japan and Chinese standard be hit by low pressure series valve.

1. Manufacturer Overview

Location Shangdong, China
Year Established 1968
Annual Output Value Above US$ 5 Million
Main Markets Korea, America, Italy, Germany, Singapore, Canada and Koweit.
Company Certifications ISO 9001:2008;

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Tianjin, Qingdao
Export Percentage 70%
No.of Employees in Trade Department 500 People
Language Spoken: English; Chinese; Spain; Alabic
b)Factory Information  
Factory Size: Above 80,000 square meters
No. of Production Lines Above 6
Contract Manufacturing OEM Service Offered; Design Service Offered
Product Price Range Average