产品概述 Product Overview
HPR439型调压阀是一种弹簧设定直接作用微压调节阀，可将较高压力的气体一次
节流减压稳压极低压力，用于阀后控制。适用于各类气体的微压控制，特别适用于
微压氮封。控制压力O.3KPa，控制压力为15KPa，使用温度-48℃，
使用温度120 ℃。
可用于储罐，除尘器，料仓充入惰性气体氮封，降低氧含量，防止气体和粉尘爆炸
HPR439 Pressure regulating valve is a spring-driven micro-pressure regulating valve and
can reduce and stabilize high-pressure gas to the extreme low pressure. It is only used for
downstream pressure control. It is also used for micro-pressure control of different gases.
Especially apply to the nitrogen blanketing system. The minimum control pressure is 0.3KPa. The
maximum control pressure is 15KPa. The minimum operation temperature is-48℃The maximum
operation temperature is 1200℃