Water Storage Tanks with Type AB Air Gap


Water storage Tanks from Morclean provide a full range of heavy duty water storage header tanks and volume pump fresh water supply tanks in heavy duty GRP.

Sizes range from 2000 Litres to 20,000 Litres capacity and in any RAL colour to blend in to the client’s surroundings


water storage mondo


The water storage tanks are also available with an additional gel coating in applications where aesthetics are important.

Fitted with a ball valve and Type AB air gap, the tanks also feature inlet and outlet points that are moulded into the tanks to ease connection to the inlet and outlet points.

The air gap in the range of Morclean heavy duty supply tanks provides fluid Category 5 back flow protection to ensure compliance on site.

The heavy duty GRP construction ensures that the water tank is durable and protected against accidental damage or vandalism.

Typically used for water supply to a jet wash, or to multiple volume pumps, or where the water supply is at a  low pressure, the high volume water tanks can also be frost protected or the water heated to ensure year round supply.

A Type AB air gap is a non-mechanical backflow prevention arrangement of water fittings complying with Type AA, except that the air gap is the vertical distance from the lowest point of the discharge orifice which discharges into the receptacle, to the critical water level of the rectangular weir overflow.

The legislation dictates that a physical air gap is maintained between the lowest water discharge point and the critical water level of a receiving vessel. The spillover slot within the receiving vessel provides an uninterrupted spillover to the atmosphere.



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Morclean’s quality administration systems have been assured and approved to the standards and guidelines of BS EN ISO 9000:2000 for the sales, service and hire of industrial cleaning equipment.

Our registration no. is 94/121120 and our standards and guidelines are externally audited by CIS.

ISO 9001 registered


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0800 1300 402
  • Please note that many models described on this website are bespoke, and as such cannot always be accurately depicted.
  • All photographs and illustrations displayed on this website are representative of model ranges or a model series only. Individual models and specifications may vary from those shown.
  • Please contact us if you require clarification or individual specifications of any equipment. Morclean reserve the right to update and amend the specification of our equipment and accessories without notice and in the interest of the customer.
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