The Yk43X/F/Y type gas pressure reducing valve is a pilot piston type gas pressure reducing valve. It consists of two parts, the main valve and the pilot valve. The main valve is mainly composed of valve seat, main valve disc, piston, cylinder liner, spring and other parts. The pilot valve is mainly composed of valve seat, valve flap, diaphragm, spring, adjusting spring and other parts. The outlet pressure is set by adjusting the spring pressure, and the outlet pressure is sensed by the diaphragm. The piston is opened and closed by the pilot valve to adjust the flow area of ​​the throttling part of the main valve to realize the function of decompression and voltage regulation.

Yk43X/F/Y type gas pressure reducing valve is mainly used for gas pipelines, such as air, nitrogen, oxygen, hydrogen, liquefied gas, natural gas and other gases.