Rubber Flapper Swing Check Valve Flanged For Pipeline With 45 Degree

Rubber Flapper Disc Swing Check Valve Flanged , 45 Degree Rubber Coated Disc

Brief Description

Rubber Flapper Swing Check Valve, Oil Control Bottom Buffer is a safety device mounted in the pipeline

or pump outlet to prevent the pump from inversed running due to the water hammer’s shock produced in

the sideflow of the medium when the pump stops.

And it features by the light flap, big opening, notable power saving, small fluid resistance, newstyle of

water hammer removal mechanism’s design, stable and reliable seal performance, wearable, long

duration, stable running, without vibration and noise etc.

Suitable for the pipeline related to the systems of water supply and drainage, firefighting, warming etc. or

the pump outlet to prevent both pump and pipeline from being damaged due to the water hammer

produced in medium’s back-flow.

Typical Installation

Brief introduction:

Rubber disc check valves consist of body, cover and rubber disc.

Inside of the rubber disc is steel plate, steel bar and reinforced nylon liner and the outside is rubber and

the disc life is more than one million openclose cycles.

The valves is designed with unimpeded bore, so the pressure loss is very little and no sundries pile up in

the body and it is easy to maintain this kind of valves.

The valves is used for feeding system and installed at the outlet of the pump to prevent the fluid flowing

backward and water hammering.

Also it can be installed at the inlet of inlet/outlet's bypass pipe to prevent the water in the cistern flowing

backward into the pipe.

Mail part & material

Body: pray cast iron, ductile cast iron

Disc: steel plate+ nylon + NBR

Bonnet: pray cast iron, ductile cast iron

Technical Specification

- Nominal diameter: 50～600mm

- Nominal pressure: 1.0~1.6Mpa
- Medium: water and weak corrosive fluid, etc.

- Work temperature: 0~80℃

Main external and connection dimension

Shanghai KangQuan Valve Co. Ltd. is a specialized valves manufacture, which has 2,500 tons of 

valves output capacity annually. We pay much attention to the quality so our products are superior in 

quality compared with those of other manufacturers. After years of research and development, we have

accumulated a wealth of information and experience in this field. We enjoy a high reputation in dealing 

with both domestic and overseas trading.

Shanghai KangQuan Valve Co. Ltd.  covers an area of  15000 square meters. Our products line includes

various kinds of gate valves, globe valves, ball valves, check valves, cock valves, butterfly valves of , etc., 

up to the international advanced standards of ANSI, API, JIS, DIN, BS and so on . Materials mainly include

carbon steel ,stainless steel ,ductile iron and so on .with hand wheel worm-gear actuator and pneumatic

and electric actuator to be selected ,widely used in the industries of petrochemical, natural gas, metallurgy, 

electric power , pharmaceutical , construction, etc..

With highly qualified professionals and first class service, Shanghai KangQuan Valve Co. Ltd. has

established a highly respected enterprise which has been relied on for years. And we will continuously 

offer customers the most accurate and high quality delivery service possible.

Excellent quality assurance is our sales purpose, 
Competitive price is our sales policy, 
On time product delivery and responsive service is our standard.

Shanghai KangQuan Valve Co. Ltd. hopes to work together with you for a better future. Let’s work 

together building a mutually beneficial relationship that will last for years.