ZZYP(M/N)series self-reliance type regulating valve is a kind of energy-saving pressure regulating valve which needs no external energy, only depends on media pressure changes to makes regulating automatically and stable valve upstream (or down-stream) pressure to be const value.

This type of valve is a ideal of energy-saving product, can be widely used for keeping and stabilizing stream pressure, also suit for automatically control of non-corrosive gas, low viscosity liquid media reduce pressure and stabilizing pressure (upstream) or pressure relief and stabilizing pressure (or down-stream).

Self-operated Control Valve

- Type:Single port pressure unbalanced plug type; cage guided pressure balanced plug type

- Size:25-300mm

- Pressure:PN1.6、4.0、6.3MPa:JIS10K、16K、20K:Class 150、300

- Body material:WCB、WC6、WC9、LCB、CF8、CF8M、CF3M 

- Body connections:Flangedtype:RF、FM

- Trim type:Top guided single port plunged type piug :cage guided pressure balanced type plug

- Bonnet:Standardstype:-5-+80℃;Middle temperaturetype: <300℃;Bellows balanced type;Piston balanced type

- Gland type:Bolt pressingtype

- Packing:V-shape PTFE packing, graphite packing, each material operating pressure -temperature limitation