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Sewon Q&TECH

Product

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

P/V Relief Valve

For your safety, choose our products.

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

Available in a full range of sizes and configurations, 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

Guided pressure and vacuum pallets assure smooth lift and closure, and
suitable materials available for corrosive and extreme temperature service
Drilling conforming to ANSI/ASME B16.5 for Class 150 Flanges, or KS/JIS 10K
Flanges. Other standards are available on customer's request. Consult our
factory for special application or special design.

Specifications

Service Pressure 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) Deflagration flame arrester

Materials

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
Weather Hood 304 S.S, Aluminum 316 S.S

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

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