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
Hinged Type Emergency Manhole Cover Vent Enable exact Re-Seating by Hinge Mechanism The design also allows convenient access through the vent for tank inspection and maintenance
Incorporates a vacuum relief, and enables pressure and vacuum relief when emergency condition.
Designed to open the valve and enable to flow external air when excessive vacuum over setting value is generated in the storage tank.
Air-cushion pallet reduces the vapor leakage from storage tank
▶ Consult our factory for special application.
Specifications
| Installation | Vertical |
|---|---|
| Type | Weight loaded, conventional emergency pressure & vacuum relief vent |
| Set pressure / Set vacuum | Maximum 700mmH²O |
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) |
| Weather Hood | 304 S.S, Aluminum | 316 S.S |
▶ 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
