Pressure relief valve is a pressure regulating valve with a piston instead of a diaphragm.More than three times longer life than diaphragm type.Diameter less than DN50 is recommended to choose Y110 and Y116 (threaded connection) diaphragm type pressure cutting valve;Diameter is equal to DN50 recommended use of Y42X(flange connection) piston type pressure reducing valve.This kind of valve belongs to the adjustable type pressure reducing valve, the pressure after the valve can be adjusted according to the need, after putting into use, the pressure after the valve is always reduced to and stable in the set value, not garden valve pressure, flow fluctuation and change.High quality material selection, reliable performance, long service life.

Technical parameter

Nominal diameter: DN20 ~ 400mm
Nominal pressure: pn1.6 ~ 6.4Mpa
Applicable temperature: 0 ~ 90 ℃
Applicable medium: air or corrosive liquid
Main materials: cast iron, ductile iron, carbon steel

Pilot type large diaphragm high sensitive pressure reducing valve has made a great improvement on the basis of ordinary pressure reducing valve.Diaphragm using new materials, and greatly processed the working area, so the valve upstream pressure or downstream load subtle changes can be timely and accurate feedback to the main valve diaphragm, to adjust the opening of the main valve, to ensure the stability of the downstream pressure.Another outstanding feature of YD43H pilot type large diaphragm high sensitivity pressure reducing valve is: the same valve body can be installed and interchangeable multiple pilot valves in the pressure regulation at the same time, to achieve temperature control, upstream pressure control, remote switch control, etc..

Product features

Drive mode: manual
Connection type: internal thread
Structure: piston type
Sealing material: stainless steel
Pressure range: 2.5MPa
Nominal diameter: DN15-DN50
Commonly used material: carbon steel, stainless steel