SEWON Emergency Vent Manhole Cover
Model: SEA, SEAS, SEB, SEV, SEVH, SEC, SEL
Size Range: 16″ – 24″
Set Pressure Range: 22 to 10,000 mmWC
Set Vacuum Range: 22 to 700 mmWC
- Description
- Resources
Description
| Details | |
|---|---|
| Application | |
| The SEWON emergency vent cover is designed to provide emergency relief capacity beyond that furnished by the normal operating pressure & vacuum relief valve on the tank. These large relief cover which only open in emergencies are used to protect tanks against rupture or explosion that could result from thermal pressure caused by fire surrounding a tank, etc. It remains closed tightly at all internal pressure below setting pressure (and above the vacuum setting). These cover also provide easy access into the tank. |
| Specifications | |
|---|---|
| Size Range | 16″ – 24″ |
| Set Pressure Range | 22 to 10,000 mmWC |
| Set Vacuum Range | 22 to 700 mmWC |
| Materials | |
|---|---|
| Body | Aluminium, Carbon Steel, SS304, SS316 |
| Pallet | SS304, SS316 |
| Diaphragm / O-ring | Teflon (Diaphragm seal) |
Product Catalogue
