Description

V**0Y Pilot Drive Self-operated Differential Pressure control valve, is composed of control valve body, actuator, positioning spring , stainless steel bellows, external pressure tap and all that. The valve doesn’t requires any auxiliary energy from external supply sources, by use of medium itself pressure as motive power, it can automatically control and stabilize the medium ***** valve has high regulating accuracy . It is mainly used for keep ing the pressure of protecting gas (such as Nitrogen ) on tank’s top to be constant , in ordert to avoid the material in the tank contacting with air, avoid volatilizing and oxygenizing of material and keep the safe of the ***** is especially suitable for the various gas seal protection system! V**0Y command operated self-operated micro-pressure control valve is characterized by power saving, effectively handle, convenient to operate and maintain etc. It is widely used in the oil and chemical etc industrials. â–  Standard Specifications Body Type ï&frac*4;šcast globe valveï&frac*4;Œ(as shown in figure 1) Nominal Diameter:DN*0, *5, *2, *0, *0, *5, *0, **0 Nominal Pressure: B PN1.0、1.6MPa ANSI**0 JIS *0K DIN PN*6 End Connectionï&frac*4;šFlange HG*******7Mï&frac*4;› ANSI B*6.5 RF ï&frac*4;›DIN***3/***4/***5RFï&frac*4;›JIS B***1RF Face to Face Dimension: according to GB/T*********9ï&frac*4;ŒEN**8.1:***5ï&frac*4;ŒISO********2 basic series 1 Body Material: WCB, ZG0Cr*8Ni9(CF8), ZG0Cr*8Ni*2Mo2Ti(CF8M) Bonnet Type: STD typeï&frac*4;Œ**0ï&frac*2;ž*0℃ ï&frac*4;›Medium temp typeï&frac*4;ˆwith Every temperature tank )ï&frac*4;Œ ≤**0℃ï&frac*4;›high temp typeï&frac*4;ˆwith Every temperature tank and extensionsï&frac*4;‰ï&frac*4;Œâ‰¤**0℃Packing ï&frac*4;šV shape PTFE , flexible graphite, o-rings Seal gasketï&frac*4;šSeal gasketï&frac*4;šMetal winding gasket, metal graphite gaskets, zigzag gasket and flat gasket Paint: Carbon steel shell surface required to paint, stainless steel or copper surface without paint . Trim