Home KNOWLEDGE Content

Iron or Stainless Steel Double Door/Dual Plate Wafer Check Valve Dn50-1000

Dec 07, 2017

Basic Info

Material: Stainless Steel

Connection Form: Wafer

Structure: Swing

Pressure: Ordinary Pressure

Function: Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence

Sealing Form: Gland Packings Globe Valve

Flow Direction: Reversing

Standard: ANSI

Application: Industrial Usage, Water Industrial Usage, Household Usage

Trademark: OTS

Specification: CE/ISO/KS/KC/BV...

Origin: China

Product Description

1. Brief introdution 

Wafer butterfly wafer check valve is a save-energer product is manufactured based on the foreign advanced technology and in accordance with relative international standards, the wafer check valve is featured by excellent retaining performance, high safety and reliability and low flow resistance. And the wafer check valve is suitable for systems in the industries of petrochemical, medicine, textile, paper-making, water supply and drainage, metallurgy, energy and light industry etc used as a wafer check valve in one way.
As a professional wafer check valve manufacturer, our policy continuity and consistency through quality and prompt delivery.
We are professional wafer check valve manufacturer and we are specializing in butterfly valves. As a professional wafer check valve manufacturer, our wafer butterfly-type check valve are cheap simple, our  factory shipped timely. As a  professional wafer check valve manufacturer, welcome to send enquiry to us or phone ordering.
In no case can we cheapen the quality of products.

2. Features
1. Small in size, light in weight, compact in structure, easy  inmintenance . 
2. Two torsion spring are used excerting on each of the pair valve plates, quickly ank automatically .
3. The quick-close action prevents the medium from flowing back and eliminates water-hanmer effect 
4. The wafer check valve is short in length, so that it is rigid and easy to mount .
5. It is easy to install on pipeline which is laid horizontaly or verticaly 
6. The wafer check valve is tightly sealed, without leakage under the pressure water  test.  
7. Safe and reliable in operation, high interference-resistance  
8. The connection dimensions of flanges accord with the standards of GB4216-4216.5-84.  
9. The face to face dimensions are in accordance with GB12221-89 ISO5752-82     
The stem of the wafer check valve should be perpendicular to the horizontal level when the wafer check valve is mounted on horizontal pipeline. For vertical in stallation the direction of flow should be downward.

3. Dual plate check valve
Dual  wafer check valves disc are important part of the valve body, valve disc, valve stem and spring, and pin compact design, shortened due to the close stroke of the valve plate and spring action can acelerate to close the effect can reduce water hammer and water hammer sound.
The wafer check valve is mainly applied to the water supply system, high-rise buildings and industial area, due to the distance between its surface than the average short wafer check valve is the most convenient place in the installation space constraints.
As a professional wafer check valve, we can provide professional drawing:
4. Technical data
As a professional wafer check valve manufacturer, we can provide professional data:

Nominal Diameter


Nominal  Pressure


Testing Pressure

Shell: 1.5-2.4  Sealing: 1.1-1.76

Suitable Medium

Fresh water, Steam, Food, medicine, Oils, Acids, etc.

Working Temperature