Dual Flap Check Valve

Product Name: Dual flap check valve
Model: DH77X-10/16T
Dimensions: DN40-DN1000
Connection Method: Wafer
Working Pressure: PN16、PN10、150LB、5K、10K
Temperature Range: -10℃-100℃
Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550

 

 

The structural diagram of butterfly check valves is very simple, and compared to other check valves, their structural length is also very short. Butterfly check valve, also known as butterfly check valve, is connected in a wafer style. The valve plate consists of two semicircular butterfly plates, which are connected by the valve stem and forcibly reset by springs. The working principle of a butterfly check valve is: when the medium flows through the valve body channel, the medium pressure is greater than the spring force, and two butterfly plates are pushed open, the valve opens, and the medium flows; When the medium stops flowing, due to spring force, the two butterfly plates are forced to reset, and the valve closes to prevent the medium from flowing back. Butterfly check valve structure diagram Butterfly check valve, also known as double disc double disc check valve, its sealing surface can be made of wear-resistant material or lined with rubber, with a wide range of applications and reliable sealing. Butterfly check valves are automatic valves that do not require manual operation. This type of valve is usually used for pure pipelines, as well as industrial, environmental, water treatment, and high-rise building plumbing to prevent medium backflow. Prevent reverse flow of the medium.

 

 

 

 

1. Small size, light weight, and compact structure.

2. Rely on spring torque to quickly close on its own.

3. Can be installed on both horizontal and vertical pipelines.

4. Safe and reliable performance, with good anti-interference performance.

5. Line sealing, with better sealing performance, can achieve zero leakage under static pressure.

6. The adhesive strength between rubber and valve body is high, which can effectively prevent the valve seat from falling off during use.

7. The upper and lower flanges and the inner walls of the valve body are treated with hard film anti rust oil to avoid damage to the paint film during the rubber vulcanization process after spraying, as well as aging of the rubber valve seat caused by secondary high temperatures.

8. The valve body is made of epoxy resin powder, with strong adhesion and high impact strength.

9. The upper and lower flanges are sealed with water lines for better sealing performance.

 

 

 

 

 

 

Hot Tags: dual flap check valve, China dual flap check valve manufacturers, suppliers, factory, prototype check valve, seasonal order check valve, bulk purchase check valve, power generation check valve, consultancy check valve, operation check valve