1,050 Litre CAT5 Type AB Air Gap Break Tank



1,050 Litre Fluid CAT5 Type AB Air Gap Break Tank

  • Dimensions: (mm) 980 dia x 2100 mm h (up to 32mm inlet) – 2300 mm H (up to 50mm inlet)
  • Fitted with screened overflow and weir – WRAS approved polymer
  • Lid 620mm – 1.5” outlet as standard
  • Guaranteed for 10 years

Drop Arm Float Valve Options

WRAS Approved

Customer Offloading *

It is the customers responsibility to offload, a HIAB is available for an additional fee

SKU: 172511CAT5 Category:

1,050 Litre Fluid CAT5 Type AB Air Gap Tank

Enduramaxx’s 1,050 Litre Fluid CAT5 Type AB Air Gap Tank and constructed from the MDPE polyethene which is UV stabilised.  This tank is a one-piece, seamless, rotationally moulded tank which guarantees strength, impacts resistance, durability and many years of use.  This arrangement of fittings for compliance with the Water Supply (Water Fittings) Regulations 1999 in England and Wales and the technically identical Scottish Water Byelaws 2004.

Enduramaxx’s 1,050 litre Fluid Category 5 Break Tank is fitted with a Type AB-Air gap weir overflow for complying with the Water Supply (Water Fittings) Regulations 1999. The weir overflow (Fluid 5) which is non-mechanical backflow prevention for inlets up to 32mm. Many water authorities demand that water storage tanks connected to the mains water supply have suitable measures to protect the mains from contamination. The AB Airgap is designed to prevent the inlet to become submerged and stop the water within the tank from contaminating the mains water supply should there be a backflow pressure drop in the mains.

These 1,050 litre break tank is fitted with a cowled screened overflow to prevent the ingress of light into the tank and a stainless steel mesh to prevent the debris from getting into the tank.  Larger weirs can be specially made for larger inlets.  This break tank meets the requirements of WRAS Fluid Category 5 Break Tanks, also known as a Fluid Cat 5 break tank, Fluid Cat 5 tank and Fluid Cat 5 booster set tanks.

Potable Drinking Water Break Tank

Our Fluid CAT5 Type AB Air Gap Break Tanks are manufactured from WRAS (Water Regulations Advisory Scheme) approved polymer and are available in black, boat blue or natural.  These water tanks are DWI approved and meet the specific requirements of Regulation 31.

What Installations Need to Be Fluid Category 5?

Many installations potable drinking water tanks which are connected to the mains water supply will need to be fluid category 5 approved.  In some case, this tank will need to be insulated to prevent thermal gain and loss such as plant rooms and outside potable water storage.  More details for tank installations that come under this are available here

Equipment Mounting and Customisation

The 1,050 Litre CAT5 AB Air Gap Tank is available with tank modifications options to suit your installation.  Liquid level sensor assemblies, fill pipes, BSP threaded inlets, outlets, PN16 and ANSI flanges, welded sockets are available.

Delivery of Your 1,050 Litre Break Tank

Our 825 Litre CAT5 AB Air Gap Tanks are manufactured by Enduramaxx at our factory in Lincolnshire.   Most of these water tanks are stocked for collection or quick delivery throughout the UK.  We are available to deliver to site for installers to save double handling of these tanks.  in some cases where clients cannot offload the tank, we can offer Hiab deliveries which are priced upon request.  Please view our installation guide here.

How Big is a 1,050 Ltr Fluid CAT5 Type AB Air Gap Break Tank?

Capacity 1,050 Litres
Diameter 985 mm
Height 2300 mm
Outlet 1.5″ plastic male outlet
Lid 620mm dia lid

Additional information

Dimensions N/A
Inlet Size

Up to 32mm, Up to 50mm

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