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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 RELIEF VALVE WITH FLAME ARRESTER

Model SBF+SFH
Series P/V Relief Valve with Flame Arrester
Product Description

NOMINAL SIZE
- 2", 3", 4", 6", 8", 10", and 12"

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


Protect storage tank from overpressure or excessive vacuum, and potential ignition source Weight loaded for pressure and vacuum venting Designed for easy separation of Flame Element Housing so very convenient for maintenance.
Air-cushion pallet reduces the internal vapor leakage Installed at end-of-line.

TEFLON seat diaphragms are standard to minimize sticking caused by resinous vapors and atmospheric moisture Crimped ribbon flame elements Drilling conforming to ANSI/ASME B16.5 for class 150 flanges, or KS/JIS 10K flanges

▶ Consult our factory for special application or special design.


Specifications

InstallationVertical
Model SBF+SFH
Model SBB+SFH
End-of-line, vented to the atmosphere directly
In-line, a flanged side connection is provided
For pipe away of vapors
Flame arrester classificationDeflagration flame arrester, Bi-directional
Set pressure / Set vacuum20mmH2O to 700mmH2O(H2O specification)
Explosion gas groupIIA(standard), IIB/IIC(for special application)

▶ Other specifications are available. consult our factory


Materials

PART NAMEMATERIALS STANDARDMATERIALS OPTIONAL
BodyCarbon Steel, 304 S.S, 316 S.S, AluminumHastelloy, Alloy 20, Monel, Inconel
Flame Element304 S.S, 316 S.SHastelloy, Alloy 20, Monel, Inconel
Element Housing304 S.S, 316 S.SHastelloy, Alloy 20, Monel, Inconel
Stud Bolt and NutC.S, 304 S.S316 S.S
Pallet304 S.S, 316 S.SHastelloy, Alloy 20
Seat304 S.S, 316 S.S, AluminumHastelloy, Alloy 20
Seating DiaphragmFEP TEFLON (Weight loaded type)
VITON O-ring (spring loaded type)
Metal to metal, Viton
Hood(Model SBF)304 S.S, Aluminum316 S.S

▶ Other special materials such as Hastelloy B/C are available upon customer`s request.




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