Vaccum Relief Valve
This series of safety valve is a vacuum relief valve, also known as negative pressure safety valve, with the characteristics of stable structure and large diameter, mainly used in the auxiliary system and is the most critical negative pressure protection equipment in nuclear power plant.
Design Standard
ASME Standard
Product Range
Size Range：US series:≤20" GB series:≤DN500
Pressure Range：US series:≤Class300 GB series:≤PN63
Setting pressure range：-1bar~0bar
Body Material：Carbon Steel, Alloy Steel, Stainless Steel
End Connection：Flanged, Threaded, SW-Welding, Butt-Welding
Applicable Temperature：≤370°C
