ZZY self-operated regulting valves
detailed product description
|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)
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.