Introduction to dh41f-40p low temperature check valve

Dh41f-40p low temperature check valve is an automatic valve to prevent medium backflow. During the manufacturing process, immerse the parts in liquid nitrogen with a low temperature of -196 ℃ and keep it cold for 2 to 6 hours, then take them out for natural treatment, and repeat the cycle twice to reduce the deformation caused by temperature difference and metallographic structure change, and improve the sealing performance of the valve at low temperature. Valves used for flammable media need anti-static design.