Thief-Hatch

Model 240 Thief Hatch Weight Loaded offers a safe protection against pressure and vacuum. Within the cover are a static pressure seal, and a weight-loaded vacuum pallet and diaphragm assembly.

  • Specifications
  • Supporting Document (Optional)
  • Max. file size: 50 MB.
  • Hidden

The pressure and vacuum settings can be selected from a standard list. As excessive pressure builds up in the storage tank or vessel the hinged hatch cover lifts, breaking the seal and allowing excess pressure to dissipate into the atmosphere. It closes under gravity when the pressure has returned to normal. If the tank is subjected to negative pressure, the vacuum pallet and diaphragm assembly opens and allows air to be drawn into the vessel. The diaphragm closes when a positive pressure is established. The unit must be installed on a flange at the top of the tank in the horizontal plane. It is possible to access the tank for gauging and sampling by fully opening the hatch.

  • Specifications
  • Supporting Document (Optional)
  • Max. file size: 50 MB.
  • Hidden

It is still possible that we have it!

Purple Engineering is providing a wide range of Pipeline and Oil & Gas equipment. It is possible that we have the product you are after or know who in the market has it! Please call us and we can confirm if we have the item you are searching for.

We have a wide range of oil & gas related equipment

Purple Engineering is an Australian based company and we have a wide range of equipment for Onshore & Offshore Pipeline, Oil & Gas and Power Generation industries. Please Email us the spec of the item you rquire & we will confirm the availability.

We are your friends in the field and we are providing a lot of different styles of Tank Vents for your specific needs. Call us and you will feel the difference.