Blocker valve manufacturer: How to select check valves?

Blocker valve manufacturer: How to select check valves?
Selection criteria for check valves: In order to prevent medium backflow, check valves should be installed on equipment, devices, and pipelines; Check valves are generally suitable for clean media and should not be used for media containing solid particles and high viscosity; Generally, vertical lift check valves should be used on horizontal pipelines with a nominal diameter of 50mm; The straight through lift check valve can be installed on both horizontal and vertical pipelines.
For the inlet pipeline of the water pump, it is advisable to use a bottom valve, which is generally only installed on the vertical pipeline of the pump inlet, and the medium flows from bottom to top; The lifting and rotating type has good sealing performance and high fluid resistance. It is suitable for horizontal installation on horizontal pipelines and vertical installation on vertical pipelines; The installation position of the swing check valve is not limited. It can be installed on horizontal, vertical, or inclined pipelines. If installed on a vertical pipeline, the flow direction of the medium should be from bottom to top. Swing check valves should not be made into small-diameter valves, but can be made into high working pressures. PN can reach 42MPa, and DN can also be made very large, up to 2000mm or more.

According to the different materials of the shell and seals, it can be applied to any working medium and any working temperature range. The medium includes water, steam, gas, corrosive medium, oil, medicine, etc. The working temperature range of the medium is between -196 and -800 ℃.
The applicable occasions are low voltage large caliber, and the installation occasions are limited; The installation position of butterfly check valve is not limited, it can be installed on horizontal pipelines, as well as on vertical or inclined pipelines; Diaphragm check valves are suitable for pipelines that are prone to water hammer. Diaphragm can effectively eliminate water hammer caused by medium backflow. They are generally used in low-pressure and room temperature pipelines, especially suitable for tap water pipelines. The working temperature of the medium is generally between -12 and 120 ℃, and the working pressure is less than 1.6MPa. However, diaphragm check valves can achieve larger diameters, with DN up to 2000mm or more.
The above is a detailed introduction of the valve manufacturer!