self-operated control valve operated

the company produces ZZJP type pilot-operated self-pressure regulating valve is developed according to the requirements of domestic and foreign products and research and development
the product is no external energy was transferred medium own energy use as a power source introduced into the pressure valve of the pilot control spool position changing the throttle valve body surface area in order to ensure the set pressure is kept a constant self-pressure regulating valve the product has sensitive, good sealing performance the set pressure fluctuation is small high control accuracy reduction ratio and other characteristics 
Thus  it applies to petroleum products or fuel depot tanks chemical medicine or other micro-pressure nitrogen gas protection automatic adjustment and other occasions 

 

Specification and technical parameters

Nominal diameter	DN15--DN250
Nominal pressure	PN1.0--PN1.6 Class150
Operating temperature range	-20--150
Connection type	Flange type
Material of valve body	WCB CF8 CF8M CF3M
Material of valve trim	304 304+PTFE 316 316+PTFE 316L 316L+PTFE
Flow characteristics	Quick Open
Regulation Accuracy	5%
Pressure adjustment range	0.3KPa--50KPa Segmented control
Leakage Level	VI (standard ANSIB16.104)