Wafer Type Dual Plate Check Valves

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TT or LC
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:Check valve is 150, why not put 150 of the smoke pipe?
DN150 check valve, it is possible that the internal path is less than the required value of 5mm-10mm. Therefore, the 150 outer diameter of the smoke pipe is not up.
Q:What are the types of check valves?
The check valve is divided into three kinds: lift check valve, swing check valve and butterfly check valve:1. lift check valve is divided into two types of vertical and horizontal.2. swing check valve is divided into single, double flap and multi flap type of three.3. butterfly check valve is straight through type.The above types of check valves can be classified into thread connection, flange connection, welding connection and clamp connection in connection forms of four kinds.Texture of material1. cast iron check valve2. brass check valve3. stainless steel check valve4. carbon steel check valve
Q:Can the check valve be horizontally installed?
Lift check valve can be divided into 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.
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:Is the tank stop valve a non-return valve or a check valve?
The valve has a knob, and the controller can control the forward flow. Because of its special structure, the fluid can not flow backwards even if there is no artificial valve.
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:Check valve and check valve
The name is not the same, there is a check valve, there are video instructions, you can search the "Simon check valve.""
Q:Installation position of air pipe check valve
Texture of material1. cast iron check valve2. brass check valve3. stainless steel check valve4. carbon steel check valve5. forged steel check valveCheck valve refers to rely on the flow of the media itself and automatically open and close the valve flap, used to prevent the media back flow valve, also known as check valve, Dan Xiangfa, 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).The function of this type of valve is to allow the medium to flow in one direction and to prevent flow in the opposite direction. Usually the valve is automatically work, fluid pressure flow in one direction, the valve open; the opposite direction of fluid flow by gravity, fluid pressure and valve closing effect on the valve seat, thereby cutting off flow.
Q:How to prevent the backflow valve of medium
Among them, the check valve belongs to this type of valve, which includes swing check valve and lift check valve. The swing check valve has a hinge mechanism and a gate like valve free against the inclined seat surface. In order to ensure that the valve can reach the appropriate position of the seat surface at any time, the disc is designed in the hinge mechanism so that the disc has enough swing space to make the disc real and comprehensive contact with the valve seat. The disc can be made of either metal or leather, rubber, or synthetic coverage, depending on performance requirements. The swing check valve is almost completely open and the fluid pressure is almost unimpeded, so the pressure drop through the valve is relatively small. The check valve of the lift check valve is located on the valve seat sealing surface of the valve body. In addition to this valve disc is free to lift, like the rest of the cut-off valve, the fluid pressure valve from the valve seat sealing surface lift, medium return led down to the valve seat, and cut off the flow. Depending on the service conditions, the disc can be of all metal construction or in the form of a rubber pad or rubber ring on the valve frame. The same as the cut-off valve, lift check valve fluid through the channel is narrow, so the check valve by lifting the pressure drop than the swing check valve a little bigger, and swing check valve flow restrictions very little.
Q:The working principle and structure description of the mute check valve
1, when the medium according to the provisions of the direction of flow, the valve by the media force, is open; the medium back, due to weight and disc valve by the medium reverse force, so that the sealing surface of the valve flap and valve seat sealing and closed, to prevent the media counter to.2, the body and valve sealing surface using stainless steel surfacing.3, the length of the valve according to the provisions of GB12221-1989, flange connection size according to the provisions of JB/T79-1994.
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  
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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