Stainless steel spring check valve

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$4.00 - $90.00/ Piece|1 Piece/Pieces(Min. Order)

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Yuyao Yueer Valve Co., Ltd.

Zhejiang, China

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Check valve, also called check valve, is an automatic valve.
It relies on the pressure of the flowing medium in the pipeline to push the valve flap to realize the closing and opening of the valve.
When the medium stops flowing, the check valve flap is closed, which can effectively prevent the backflow of the medium in the pipeline, which is important for ensuring the safety of the pipeline. to a great effect.

                                                            Working pressure
                                                            1.6Mpa
                                                        
                                                            Usage
                                                            Water Control
                                                        
                                                            Working Temperature
                                                            -20℃≤T≤200c
                                                        
                                                            Place of Origin
                                                            Zhejiang, China
                                                        
                                                            Brand Name
                                                            yueer
                                                        
                                                            Media
                                                            water oil gas steam
                                                        
                                                            Temperature of Media
                                                            Normal Temperature
                                                        
                                                            Type
                                                            Gate Valves

1. In order to prevent the reverse flow of the medium, check valves should be installed on the equipment, devices and pipelines;
2. The check valve is generally suitable for clean medium, not suitable for medium containing solid particles and high viscosity;
3. Generally, vertical lift check valves should be used on horizontal pipelines with a nominal diameter of 50mm;
4. Straight-through lift check valve can be installed on both horizontal and vertical pipelines;
5. For the pump inlet pipeline, a check valve should be selected. The bottom valve is generally only installed on the vertical pipeline of the pump inlet, and the medium flows from bottom to top;
6. The lift type has better sealing performance and larger fluid resistance than the swing type. The horizontal check valve should be installed on the horizontal pipeline, and the vertical type should be installed on the vertical pipeline;
7. The installation position of the swing check valve is not limited. It can be installed on horizontal, vertical or inclined pipelines. If installed on vertical pipelines, the flow direction of the medium should be from bottom to top; .
8. The swing check valve should not be made into a small-diameter valve, but it can be made into a very high working pressure. It can be applied to any working medium and any working temperature range according to the different materials of the housing and seals. The medium is water, steam, gas, corrosive medium, oil, medicine, etc. The working temperature range of the medium is between -196--800C;
9. The check valve is suitable for low pressure and large diameter, and the installation situation is limited;
10. The installation position of the butterfly check valve is not limited, it can be installed on the horizontal pipeline, or it can be installed on the vertical or inclined pipeline;
11. Diaphragm check valve is suitable for pipelines that are prone to water hammer. The diaphragm can well eliminate the water hammer caused by the reverse flow of the medium. It is generally used in low-pressure and normal-temperature pipelines, especially for tap water pipelines. Generally, the medium works. The temperature is between -12--120°C, and the working pressure is small, but the diaphragm check valve can achieve a larger diameter, and the maximum DN can reach more than 2000mm;
12. The ball check valve is suitable for medium and low pressure pipelines and can be made into large diameter;
18. The shell material of the ball check valve can be made of stainless steel, and the hollow sphere of the seal can be wrapped with PTFE engineering plastic, so it can also be used in pipelines with general corrosive media, and the working temperature is -101--150C Between , the nominal pass range is between 200--1200;
14. When selecting a check valve for incompressible fluids, the first step is to evaluate the required closing speed, and the second step is to select the type of check valve that may meet the required closing speed.