Emergency vents
Roof Manhole Cover
Details
Sized to provide emergency relief due to overpressure from tank inside.
When internal pressure is beyond the capacity off breather vent.
To be used also as “manhole” with sizes 20”-24”
Venting requirements can be calculated using API2000.
Available also weight loaded hinged arm design.
Features
SIZE: 10” - 20” - 24”
CONSTRUCTED: carbon steel, stainless steel, additional
metals and coatings
SETTING PRESSURE: +30mbar max
FLANGE RATING: ANSI 150, PN10, PN16
Products
2500
Installation and maintenance
Weight loaded
Weight loaded hinged
Materials
| DESCRIPTION | STANDARD MATERIALS OF CONSTRUCTION | ||
| CARBON STL | SS | ||
| cable, retension | SS | SS | |
| body | CS | SS | |
| diaphragm (2) (3) | Teflon® FEP | Teflon® FEP | |
| pallet | SS | SS | |
| weight, plate | CS | CS | |
| plate, retainer | SS | SS | |
| nut, hex, washer | SS | SS | |
Dimensions
| DN | 10" | 20" | 24" |
| A | 406 | 715 | 840 |
| C | 100+S | 100+S | 100+S |
| code | 2460 | 2500 | 2510 |
| datasheet | 25set | 25set | 25set |
Dimensions shown are for reference only. Contact factory for certified drawings.