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) |
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
