The gas pressure reducing valve is a pilot piston type pressure reducing valve. It consists of two parts: main valve and 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 disc, diaphragm, spring, adjusting spring and other parts. The outlet pressure is set by adjusting the spring pressure, and the diaphragm is used to sense changes in the outlet pressure. The pilot valve opens and closes to drive the piston to adjust the flow area of the main valve's throttling part to achieve the pressure reducing and stabilizing function. d=_r > Gas pressure reducing valves are mainly used in gas pipelines such as air, nitrogen, oxygen, hydrogen, liquefied gas, natural gas and other gases.
Flow coefficient
%r = dd %> D
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
% >
%>
%>
%>
%>
%>
%>
%>
%> < br/> %>
Main overall dimensions
%r = dd %> Nominal diameter
% Overall dimensions
% Connection dimensions
% => D
% =>
% =>
% =>
%
%
%
%
%> D
% > D
%> -d
%> D
%> D
%> -d
%> D
%> D
%> -d
%> D
%> D
%> -d
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
%>
Qigao YK43X gas pressure reducing valve