PRESSURE RELIEF VALVE

Model

SBFV

Series

P/V Relief Valve

Product Description

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

Service	Vacuum Relief, End-of-line
Set vacuum, min/max Weight loaded type(standard) Spring loaded type	22mmH2O(0.5oz/sq.in) / 700mmH2O(1psi) 700mmH2O(1psi) / Full Vacuum
Temperature range(standard)	Deflagration flame arrester

PART NAME	MATERIALS STANDARD	MATERIALS OPTIONAL
Body & Cover	Carbon Steel, 304 S.S, 316 S.S, Aluminum	Hastelloy, Alloy 20, FRP, PTFE, ETFE LINED
Seat	304 S.S, 316 S.S, Aluminum	Hastelloy, Alloy 20, FRP, PTFE, ETFE LINED
Pallet	304 S.S, 316 S.S	Hastelloy, Alloy 20, FRP, PTFE, ETFE LINED
Pallet Guide	304 S.S, 316 S.S	316 S.S, PTFE COATING
Seating Diaphragm	FEP TEFLON (Weight loaded type) VITON O-ring (spring loaded type)	Metal to metal

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