ZZYP type self-operated pressure regulating valve is a kind of energy-saving pressure regulating valve without external energy, and only rely on the pressure change of the medium itself to automatically adjust and stabilize the pressure before (or after) the valve to be constant. The valve is an ideal energy-saving product, it is widely used in steam pressure and stability, but also suitable for non-corrosive gas, low viscosity liquid medium pressure reduction and regulation (after the valve) or pressure relief and regulation (before the valve) automatic control.
Product characteristics
ZZYP type self-operated pressure regulating valve is a kind of energy-saving pressure regulating valve without external energy, and only rely on the pressure change of the medium itself to automatically adjust and stabilize the pressure before (or after) the valve to be constant. The valve is an ideal energy-saving product, it is widely used in steam pressure and stability, but also suitable for non-corrosive gas, low viscosity liquid medium pressure reduction and regulation (after the valve) or pressure relief and regulation (before the valve) automatic control.
Standards and specifications
Type: Straight through single seat/double seat cast ball valve
Valve size: DN20~300
Rated pressure: PN16, PN40, PN63
Connection type: flange
Flange standard: Steel flange according to GB9113-2000, JB/T-94
Sealing surface type: PN16 convex surface
PN40/PN63 are convex and convex surfaces
Flange end distance: press GB12221-89
Material: ZG230~450
ZG1Cr18Ni9Ti(SCPH2)
ZG1Cr18Ni12Mo2Ti(SCS14A)
Structure: Standard type (-5°C~+80°C)
Medium temperature type (condenser) (< +350°C)
Double eccentric butterfly valve Three eccentric butterfly valve
Bellows balance type
Piston balance type
Gland form: threaded or platen type
Filling material: V-type PTFE packing, flexible graphite packing
Pad: Type, tooth type and flat type
Material, F4/ Modified F4, Stainless steel + graphite
