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SEWON Q&TECH

Venting Device manufacturer, Fire Arrester, Relief Valve, Emergency vent cover, Gauge Hatch,Inert Gas Blanketing and more
Name

PRESSURE AND VACUUM RELIEF VALVE

Model SBB
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


In-line Type Pressure & Vacuum Relief Valve

Drilling conforming to ANSI/ASME B 16.5 for Class 150 Flanges, or KS/JIS 10K Flanges Used in a system that discharges or recovers gas or vapor in a tank through a pipe connected to the outlet side of the valve without being discharged directly to the atmosphere.
This type of in-line type valve is being used more often due to reinforcement of various environmental regulations.
Available in a full range of sizes and configurations FEP TEFLON seat diaphragms are standard to increase reliability and extended service life, and make minimize sticking caused by resinous vapors and atmospheric moisture.
Guided pressure and vacuum pallets assure smooth lift and closure, and suitable materials available for corrosive and extreme temperature
service.

▶ Consult our factory for special application.


Specifications

ServicePressure and Vacuum Relief, End-of-line
Set pressure & set vacuum, min/max
Weight loaded type
Spring loaded type
22mmH²O(0.5oz/sq.in) / 700mmH²O(1psi)
700mmH²O(1psi) / 1.05kg/㎠(15psi)
Temperature range(standard)-45°C~120°C(-1130℉~+248℉)


Materials

PART NAMEMATERIALS STANDARDMATERIALS OPTIONAL
Body & CoverCarbon Steel, 304 S.S, 316 S.S, AluminumHastelloy, Alloy 20, FRP, PTFE, ETFE LINED
Seat304 S.S, 316 S.S, AluminumHastelloy, Alloy 20, FRP, PTFE, ETFE LINED
Pallet304 S.S, 316 S.SHastelloy, Alloy 20, FRP, PTFE, ETFE LINED
Pallet Guide304 S.S, 316 S.S316 S.S
Seating DiaphragmFEP TEFLON (Weight loaded type)
VITON O-ring (spring loaded type)
Metal to metal

▶ Other special materials and special specifications are available upon customer`s request.


Products of SEWON Q&TECH