问题描述：
high pressure is asmitted to the underside of disc valve.
high pressure is asmitted to the underside of disc valve.
The spring is then compressed the requisite amount and the valve opened permitting pressure to pass to the service side.Expansion and consequent reduction of pressure takes place as it leaves the valve orifice and the reduced pressure is then controlled by the reaction of the spring to the reduced pressure acting upon the area of the piston.If medium of the diaphragm,Opens the valve and increases the orifice area.
Conversely,if the pressure rises the valve closes entil the required downstream pressure is restored;uniformity of the reduced pressure is thereby maintained within very close limits.
high pressure is asmitted to the underside of disc valve.
The spring is then compressed the requisite amount and the valve opened permitting pressure to pass to the service side.Expansion and consequent reduction of pressure takes place as it leaves the valve orifice and the reduced pressure is then controlled by the reaction of the spring to the reduced pressure acting upon the area of the piston.If medium of the diaphragm,Opens the valve and increases the orifice area.
Conversely,if the pressure rises the valve closes entil the required downstream pressure is restored;uniformity of the reduced pressure is thereby maintained within very close limits.
问题解答：
我来补答展开全文阅读