Vacuum Relief Valve
This is a vacuum relief valve. It is designed for storage tanks and exhaust ports. It willopen automatically to inbreathe external medium when there is negative pressure in the device. This type can prevent equipment damage and deformation, and protect the tank in the event of failure of any essential part.
Design Standard
API 2000
SY/T 0511.1
Product Range
Caliber range：US series:3/4"~14" GB series:DN20~DN350
Setting Pressure：-0.2~-103.4(KPa)
Body Material：Carbon steel, Stainless steel, Carbon steel+PTFE
End Connection：Flange
Applicable Temperature：-46~200°C
