Safety Relief Valve with Packed Lever
This is a pressure relief valve with a packed lever. It can be opened manually by lever, the premise of manual opening is that the working pressure reaches 75% of the set pressure. This is commonly done as part of a routine safety checks or during maintenance to prevent jamming. When the escape of medium cannot be accepted, this type will be selected.
Design Standard
API520、API526
ASME Standard
GB/T 12241、GB/T12243、GB/T 29026、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:
-196~650°C
