Hit enter to search or esc to close
Enquire Now
search
Tank blanketing valves offer complete protection to storage tanks.

Tank Blanketing Valves

Features & Benefits

The Elmac Technologies® series of Tank blanketing valves offer complete protection to the storage tank product against contamination and to the storage tank itself against rupture or damage.

  • Range of sizes available from 15mm to 50mm
  • All parts that come into contact with the product consist of stainless steel or Hastelloy with smooth surfaces
  • The valve is manufactured in an oil and grease-free environment, is self-actuating and no control line is needed for operation
  • The inert (oxygen-free) atmosphere reduces the risk of fire which could reduce the cost of your insurance premium
  • Tank corrosion is reduced
  • Reduction from very high primary pressure (up to 16 bar) to very low setting of 2 mbar
  • High accuracy settings achieved, in order to avoid any interaction with relief valves
Download Datasheet arrow

Scroll Down

Principle of operation

The operating principle of the tank blanketing valve is to maintain a positive pressure within an enclosed storage tank by introducing a gas such as nitrogen into the vapour space above the product at a required pressure.

This ‘blanket’ prevents the stored product from vaporising into the atmosphere, prevents contamination to the stored product and also helps to reduce product combustibility by eliminating oxygen-rich air.

The valve also offers primary vacuum relief for the storage tank, acting as a pressure regulator. It does this by supplying gas to the vapour space when pressure decreases within the tank to the valve’s set point.

Once the gas blanket is re-established to the required pressure the valve closes.

Standards Compliance

Elmac’s products comply with all relevant industry standards including ATEX & ISO 16852 (Flame Arresters); API2000/ISO28300 & NFPA30 (Venting & Storage of Combustible Vapours & Liquids) and possible BLEVE (fire engulfment) incidents. In addition, Elmac is accredited to the following international standards: ISO 9001 (Total Quality Management), ISO 14001 (Environmental Management) and OHSAS 18001 (Occupational Health & Safety).

Enviromental Management
Quality Management
EX
CE
Download Technical Information arrow
Related Products

Do you have any questions?

Enquire Now