Name： D500 micro-pressure type pilot-operated regulating valve
Nominal Diameter：15—100mm
Nominal Pressure：PN1.6MPa
Material：：WCB、CF3、CF3M、CF8、CF8M

D500 micro-pressure type pilot-operated regulating valve is an energy-efficient auto modulation device which regulates according media pressure and pressure change, takes it as power and move as pre-set ＆#118alue without external power supply. It integrated with inspect, control and execute functions, to be an independent instrument control system.
This product is combined of low flow resistance float valve (sleeve), pilot operator and actuator. It’s new range product which confirm to national standard, the features are as following:
1.energy-efficient auto control system without external power supply, low equipment cost, suitable for explosion proof environment
2.Simple structure, easy maintenance.
3.Set position can be adjusted and adjustable range is wide, easy for user continuously adjusts in the set range.
4.Actuator is very sensitive, can detect very small pressure change.
This product suitable for gas sealing system and safety guard system of storage tank, like nitrogen sealing storage.