On top of a tank car tank manhole covers installation,with functions of breathing and emergency vent.Within breathing valve internal pressure in the process of oil tank and the pressure balance.Emergency air exhaust devices in a tremendous rise of pressure.Even in tanker accident conditions,the respiration valves of the overflow device remained sealed,medium tank from leaking in order to prevent major accidents.Manhole cover can be installedon the exhaust gas recycling valve,oil hole,spill-proof sheath maerial,etc.
| model | WDRKG-AL-460E | WDRKG-AL-560E |
| Specification | 16" | 20" |
| emergency exhaust valve | 10" |
| anti-stress | 0.254MPa |
| emergency opening pressure | 21KPa-32KPa
|
| Maximum Displacement | 7000m3/h |
| connection method | Flange |
| temperature range | -20~+70°C |
| Package Size | 49×49×24cm | 60×28×62cm |
| net weight | 12kg | 29kg |
| gross weight | 13kg
| 31kg |
| Package | 1 piece/carton | 2 piece/carton |