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ZZY self-operated regulting valves

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ZZY self-operated regulting valves


detailed product description


parameter list

nominal diameter          DN15,20,25,32,40,50,65,80,100,125,150,200,250mm
nominal pressure          PN1.0,1.6,4.0,6.4MPa
flange atandard              ANSI,JIS,DIN,GB,JB(specail type depend on custmers )
valve body material       Cast steel (ZG230-450),  Cast  stainless steel(ZG1Cr18Ni9Ti,ZG1Cr18Ni12Mo2Ti)
valve core                        hard sealing--stainless steel(1Cr18Ni9Ti,1Cr18Ni12Mo2Ti)   soft sealing--rubber ring with stainless steel
pressure balance          stainless steel bellows(DN15~125),  Equilibrium  diaphragm(DN150~250)

 main features

1.No plus energy, can work in both no electricity, no gas occasions and save energy.

2.Pressure subsection,and  Adjusting high precision.

3.Pressure setting can be continuous set during operation

4.Rubber diaphragm type testing, actuators high accuracy, action quick.