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SEWON Q&TECH
PRESSURE RELIEF VALVE
Model
SBV
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 Designed protect storage tank from excessive negative over-pressure
Drilling conforming to ANSI/ASME B 16.5 for Class 150 Flanges.
or KS/JIS 10K Flanges 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.
NBR(Buna-N), VITON and other seating materials are available when required Suitable materials available for corrosive and extreme temperature service FEP TEFLON seat diaphragms are standard to increase reliability and extended service life, and make minimize sticking caused by resinous vapors and atmospheric moisture.
▶ Consult our factory for special application.
Specifications
| Service | Vacuum Relief, End-of-line |
|---|---|
| Set vacuum, min/max | 22mmH2O(0.5oz/sq.in) / 700mmH2O(1psi) |
| Temperature range(standard) | -45℃~120℃(-113℉~+248℉) |
Materials
| PART NAME | MATERIALS STANDARD | MATERIALS OPTIONAL |
|---|---|---|
| Body | 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 | Metal to metal |
| Weather Hood | 304 S.S, Aluminum | 316 S.S |
▶ Other special materials and special specifications are available upon customer`s request.
Product List
P/V Relief Valve
PRESSURE AND VACUUM RELIEF VALVE
SBF
PRESSURE RELIEF VALVE
SBV
PRESSURE RELIEF VALVE
SBG
PRESSURE AND VACUUM RELIEF VALVE
SBB
PRESSURE AND VACUUM RELIEF VALVE
SBFJ
PRESSURE RELIEF VALVE
SBFV
PRESSURE RELIEF VALVE
SBD
Flame Arrester
FLAME ARRESTER
SFG
FLAME ARRESTER
SFE
FLAME ARRESTER
SFK
FLAME ARRESTER
SFJ
FLAME ARRESTER
STA+SFH
FLAME ARRESTER
STA
FLAME ARRESTER
SFO
FLAME ARRESTER
SFH
FLAME ARRESTER
SFL
FLAME ARRESTER
SFD
FLAME ARRESTER
SFC
P/V Relief Valve with Flame Arrester
PRESSURE AND VACUUM RELIEF VALVE RELIEF VALVE WITH FLAME ARRESTER
SBF+SFG
PRESSURE AND VACUUM RELIEF VALVE RELIEF VALVE WITH FLAME ARRESTER
SBB+SFG
PRESSURE RELIEF VALVE WITH FLAME ARRESTER
SBD+SFG
PRESSURE RELIEF VALVE WITH FLAME ARRESTER
SBG+SFG
PRESSURE AND VACUUM RELIEF VALVE RELIEF VALVE WITH FLAME ARRESTER
SBF+SFH
PRESSURE AND VACUUM RELIEF VALVE RELIEF VALVE WITH FLAME ARRESTER
SBB+SFH
Emergency Vent Cover
EMERGENCY VENT COVER
SEA
EMERGENCY VENT COVER
SEB
EMERGENCY VENT COVER
SEAS
EMERGENCY VENT COVER
SEVH
EMERGENCY VENT COVER
SEV
Gauge Hatch
Inert Gas Blanketing Device
Sampling Device
Others
Special Product
