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Emergency Vent Cover
For your safety, choose our products.
- 16", 18", 20", and 24"
- Other sizes or specifications are available upon
- 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
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.
|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.
|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|
|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