Safety Relief Valve with Open Lever
This is a pressure relief valve with an opening lever. When the operating pressure reaches 75% of the set pressure, the valve can beopened manually through a lever. The fittingof the lever is commonly a requirement of national standards and it is used in steam and a medium that can be safely dischargedapplications. Open lever construction is usually designed for open bonnet types. Note: this structure cannot be used when the medium cannot be accepted to escape.
Design Standard
API520、API526
ASME Standard
GB/T 12241、GB/T 12243、ISO 4126-1
Product Range
Caliber range：
US series:1/2"~20" GB series:DN15~DN500
Nominal pressure range：
US series:Class150~Class2500 GB series:PN10~PN420
Body Material:
Carbon Steel, Alloy Steel, Stainless Steel, Duplex-SS, Ni-Alloys, Others upon request.
End Connection:
Flanged, Threaded, SW-Welding, Butt-Welding
Applicable Temperature:
-46~650°C
