Pressure relief valves
Details
Pressure relief valves are weight loaded vents designed to prevent tank deformation caused by increase in internal pressure.
When tank preassure reach valve pressure setting, weight loaded pallet is lifted allowing the excess pressure to be vented to atmosphere
or to be piped-away.
Pallets have knife edged ring with sealing or metal to metal.
Mesh screen over inlet excludes foreign matter.
Features
SIZE: 1” (25 mm) through 14” (350 mm)
CONSTRUCTED: carbon steel, stainless steel, additional
metals and coatings
SETTING PRESSURE: +2,5 mbar to +50 mbar
FLANGE RATING: ANSI 150, PN16
ATEX manufacturing facility
Tested and sized in accordance with API2000
Products
6200 — vent to atmosphere 3/4” to 2”
B6220 — pipe away 3/4” to 2”
6000 — vent to atmosphere 3” to 6”
B6000 — pipe away 3” to 6”
4000 — vent to atmosphere 8” to 14”
B4400 — pipe away 8” to 14”
2100 — vent to atmosphere 2” to 8”
Installation and maintenance
Materials
| DESCRIPTION | STANDARD MATERIALS OF CONSTRUCTION | ||
| CARBON STL | SS | SPECIAL | |
| nut, hex | SS | SS | SS |
| cover | AL GR 356 T6 | CS | SS |
| gasket, cover | NON-ABS | NON-ABS | NON-ABS |
| pallet, pressure | SS | SS | SS |
| o-ring, plate pallet (2) | VITON | VITON | VITON |
| flange | SS | SS | SS |
| rod, guide | SS | SS | SS |
| stem, pressure | SS | SS | SS |
| body | AL GR 356 T6 | CS | SS |
| stud - nut | SS | SS | SS |