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Sewon Q&TECH

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Sewon is the world's best company and will manage the world.

P/V Relief Valve with Flame Arrester

For your safety, choose our products.

NOMINAL SIZE

- 2", 3", 4", 6", 8", 10", and 12"
- Available Customized Design

CONNECTIONS

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

Combination model of Pressure & Vacuum Relief Valve and
Flame Arrester.
Installed at end-of-line
Protect storage tank from overpressure or excessive vacuum,
and potential ignition source
Air-cushion pallet reduces the internal vapor leakage

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

Installation Vertical
Model SBF+SFG
Model SBB+SFG 		End-of-line, vented to the atmosphere directly
In-line, a flanged side connection is provided
For pipe away of vapors
Flame arrester classification Deflagration flame arrester, Bi-directional
Set pressure / Set vacuum 20mmH2O to 700mmH2O(H2O specification)
Explosion gas group IIA(standard), IIB/IIC(for special application)

▶ Other specifications are available. consult our factory

Materials

PART NAME MATERIALS STANDARD MATERIALS OPTIONAL
Body Carbon Steel, 304 S.S, 316 S.S, Aluminum Hastelloy, Alloy 20, Monel, Inconel
Flame Element 304 S.S, 316 S.S Hastelloy, Alloy 20, Monel, Inconel
Element Housing 304 S.S, 316 S.S Hastelloy, Alloy 20, Monel, Inconel
Stud Bolt and Nut C.S, 304 S.S 316 S.S
Pallet 304 S.S, 316 S.S Hastelloy, Alloy 20
Seat 304 S.S, 316 S.S, Aluminum Hastelloy, Alloy 20
Seating Diaphragm FEP TEFLON (Weight loaded type)
VITON O-ring (spring loaded type)		 Metal to metal, Viton
Hood(Model SBF) 304 S.S, Aluminum 316 S.S

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

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