Hydro Contral Emergency Open Pressure Sustaining Pressure Relief Valve (GL500X)

Basic Info.

Model NO.	GL500X
Structure	Diaphragm/ Piston
Material	Ci, Di, CS, Ss etc
Medium Applicable	Water, Oil etc
Pressure Rating	Pn10, Pn16, Pn25, Pn40 (Cl150, Cl300)
Temperature Applicable	≤80ºC
Transport Package	Bubble Plastic Paper + Plywood Case
Specification	DN50 ~ DN800
Trademark	KARFAR
Origin	China
HS Code	8481804090
Production Capacity	5000PCS/Month

Product Description

Pressure Sustaining / Swift pressure relief/ Emergency Open ValveMODEL NO.: GL500X
Δ Pressure relief valve: This valve releases pressure from the pipeline when the pressure is higher than a preset data by the pilot. It keeps the pressure in pipeline safely below a certain value and protects pipeline equipment from damage due to high pressure or sudden pressure wave.This model can be used to release pressure for fire protection testing recycling system in high building and protect system from danger of high pressure.Δ Pressure Sustaining/holding valve: This valve also functions to keep upper stream pressure higher than a preset data by the pilot so as to secure the upper stream water supply pressure. Emergency Open Valve: This valve can be mounted at the outlet port of fire spraying pump. It will immediately open when the pressure at pump outlet port is higher than a preset value.
Pressure rating: PN10, PN16, PN25, PN40 , CL150, CL300Size : DN50-DN800

Body & Bonnet	Cast iron, Ductile iron, Cast steel, Stainless steel etc
Stem	Stainless steel
Disc	Brass, Carbon steel, Ductile iron etc
Seat	Brass, Stainless steel, Carbon steel etc
Sealing	NBR, EPDM etc
Diaphragm	NBR, EPDM etc
Piston	Brass, Carbon steel, Ductile iron etc
Flange Dimension	ASME B16.42, BS4504, ISO2531, ISO7005 etc.
Face to Face Length	API594,BS5155, ISO5752, DIN3352 and other standards