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Sewon Q&TECH

Product

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

Emergency Vent Cover

For your safety, choose our products.

NOMINAL SIZE

- 16", 18", 20", and 24"
- Other sizes or specifications are available upon
request.

CONNECTIONS

- API 650 Flange drilling(For 20" & 24" only)
- ASME 150Lbs Flange drilling
- KS/JIS 5K Flange drilling
- KS/JIS 10K Flange drilling

The basic model of Emergency Manhole Cover Vent
Emergency relief equipment for pressure relief only

Can be used as manhole cover for storage tank maintenance
Air-cushion pallet reduces the internal vapor leakage when normal
operating condition.
Teflon diaphragm of basic specification can minimize the possibility
of sticking due to solidification of Vapor condensate during long-term use.

▶ Consult our factory for special application.

Specifications

Installation Vertical
Type Weight loaded, conventional vent
Set pressure Maximum 700mmH²O

Use spring loaded emergency vents when the set pressure over 700mmH²O
Other specifications are available. consult our factory.

Drilling conforming to API 650, ASME B16.5 for class 150 flanges. or KS/JIS 5K/10K flanges.
Other standards are available on customer`s request.
Consult our factory for special application or special design.

Materials

PART NAME MATERIALS STANDARD MATERIALS OPTIONAL
Body Carbon Steel, 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
Weight A36 304 S.S
Diaphragm/O-ring Teflon(Diaphragm seal) NBR, Viton(O-ring seal)

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

Basic Ordering Information

1. Model and type
2. Tank Diameter and Height
3. Tank Type
4. Design Pressure of the tank
5. Fluid Handling
6. Size and Connection
7. Material

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