NOMINAL SIZE

- 1-1/2", 2", 3", 4", 6", 8", 10", and 12"

CONNECTIONS

- ANSI/ASME B16.5 Class 150 Flange
- KS/JIS 10K Flange

Vacuum Relief Valve
Available in a full range of sizes and configurations

Drilling conforming to ANSI/ASME B 16.5 for Class 150 Flanges,
or KS/JIS 10K Flanges
Designed protect storage tank from excessive negative over-pressure,
and standard air-Cushioned pallet assures minimal internal vapor leakage
FEP TEFLON seat diaphragms are standard to increase reliability and
extended service life, and make minimize sticking caused by resinous
vapors and atmospheric moisture.
Normally, when the pressure in the storage tank is lower than the Set
Vacuum while maintaining the normally closed condition, the pallet opens
and the external air is flowed to relieve the vacuum.
Guided vacuum pallets assure smooth lift and closure, and assures reliable
operation Suitable materials available for corrosive and extreme temperature
service
▶ Consult our factory for special application.