8 Inch Check Valve

Product Description

8 inch check valve: It is a valve that can automatically prevent the backflow of fluid. The disc of the check valve opens under the action of fluid pressure, and the fluid flows from the inlet side to the outlet side. When the pressure on the inlet side is lower than that on the outlet side, the valve disc will automatically close under the action of fluid pressure difference, gravity and other factors to prevent the fluid from flowing back. The product is designed and manufactured in strict accordance with GB12235 standard. The valve disc moves up and down along the center. The bushing is made of special materials with good wear resistance and small friction coefficient. The action is flexible and reliable, and the sealing performance is excellent.

What types of 8 inch check valve are there?

According to the structure, check valves can be divided into three types: lift check valves, swing check valves and butterfly check valves. Lift check valve can be divided into vertical and horizontal. The swing check valve is divided into three types: single-lobe, double-lobe and multi-lobe. The butterfly check valve is a straight-through type. The above types of check valves can be divided into three types: threaded connection, flange connection and welding. A check valve is a valve that automatically prevents the backflow of fluid. The disc of the check valve opens under the action of fluid pressure, and the fluid flows from the inlet side to the outlet side. When the pressure on the inlet side is lower than that on the outlet side, the valve disc will automatically close under the action of fluid pressure difference, gravity and other factors to prevent the fluid from flowing back.

Advantages

The operation of the check valve is fully automated. So if the facility loses power, the valve will still operate, preventing damage to pumps and other equipment and other problems upstream.

Disadvantages

Noise (popping), water hammer and reverse flow are common problems with check valves. However, it's important to note that these issues often occur due to poor application size and/or selection.

Application:

The check valve is suitable for control connection or connection under various pressures, temperatures and media of various medium and small diameter pipelines such as petroleum, chemical industry, thermal power stations, etc. with nominal pressure PN1.6～16.0 Mpa and working temperature of -29～550℃. The opening and closing device for cutting off the pipeline medium. Applicable media are: water, oil, steam, etc.

Production range

Our factory has a complete variety of valve body materials, and the gasket can be reasonably selected according to the actual working conditions or user requirements, and can be suitable for various pressure, temperature and medium working conditions. Check valves with different structural forms and connection forms can be designed and manufactured according to user requirements, and used for various equipment. This valve is suitable for one-way opening and closing on medium pipelines such as water, steam, and petroleum products with a working temperature of ≤350 °C.

Why choose us?

KA has been specializing in flow control area for more than 17 years.

As a professional supply chain manager of flow control products, KA offer gate, globe, check, butterfly, ball, JIS and DIN marine valves, actuators, with pressure range from 0.5-6.4MPA, size from DN15-DN3000, as well as valve design, inspection, consultation services etc.

With profound understanding of the importance of customer requirement and 17 years experience, we offer highly cost-effective products, enjoying a good reputation. And we have various kinds of certificates, such as ISO9001, API, ABS, PED, UL, FM, WRAS, DVGW, DNV, LR, BV etc, selling to more than 30 countries. Being a reliable partner, we are looking forward to cooperating with you.

FAQ

Q. How do you ship the goods and how long does it take to arrive?

A: We usually ship by sea. It usually takes 30 days to arrive. Airline shipping also optional.

Q. How to proceed an order for valve?

A: Firstly let us know your requirements or application. Secondly We quote according to your requirements or our suggestions.

Thirdly customer confirms the samples and places deposit for formal order.

Fourthly We arrange the production.

Q: Are you products standard?

A: Our model is standard, if you have specific demand, pls tell us.

Q: Do you have interest to do our own design items?

A: Absolutely! We have big interest.

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