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

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

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