Backflow Prevention Devices

Section Code 0009 : SCHEDULE 2 - Section 6.2 - Type AB - Air gap with weir overflow.

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WRAS Approval Number: 1705332

Break tank and booster set with flow controlled by a float operated valve that discharges via a type `AB` airgap (verified by test - suitable for backflow protection against fluid category 5). The inlet incorporates a stainless steel strainer, flow restrictor and a spherical isolation valve. Maximum working pressure10.0 bar. For cold water use only.

  • Section: 0009 Backflow Prevention Devices
  • Section Subtitle: SCHEDULE 2 - Section 6.2 - Type AB - Air gap with weir overflow.
  • WRAS Approval Number: 1705332
  • Expiry date: 31/05/2022
  • Note: This product has a fluid category 5 backflow prevention device built in. The water in the break tank is not considered wholesome.
  • Size: 15mm compression inlet.
  • Marking: Arrow Valves, Model number, Serial number and other tech info on casing.
  • Installation Requirements R001 R415 R574
  • Model
    BTMIDI-1, BTMIDI-2A.& BTMIDI-3A
  • Manufacturer: Arrow Valves Ltd
    Company Name
    Arrow Valves Ltd
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WRAS Approval Number: 1710362

Type `AB` airgap (verified by test - suitable for backflow protection against fluid category 5) with an adjustable pressure relief valve, solenoid valve and flow restrictor at the inlet. Maximum working pressure 5.0 bar. Maximum operating temperature 50°C

  • Section: 0009 Backflow Prevention Devices
  • Section Subtitle: SCHEDULE 2 - Section 6.2 - Type AB - Air gap with weir overflow.
  • WRAS Approval Number: 1710362
  • Expiry date: 31/10/2022
  • Size: ½” BSP (M)
  • Marking: Mechline Developments, model, volume and maximum flow rate on label on break cistern.
  • Installation Requirements R001 R574
  • Model
    W20BPD135
  • Manufacturer: MECHLINE DEVELOPMENTS LTD
    Company Name
    MECHLINE DEVELOPMENTS LTD
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WRAS Approval Number: 1801303

Type `AB` airgap (verified by test - suitable for backflow protection against fluid category 5) incorporating a float operated valve controlling the flow & flexible connection hose (with isolation valve). Maximum working pressure 10.0 bar. Cold water use only.

  • Section: 0009 Backflow Prevention Devices
  • Section Subtitle: SCHEDULE 2 - Section 6.2 - Type AB - Air gap with weir overflow.
  • WRAS Approval Number: 1801303
  • Expiry date: 31/01/2023
  • Size: 15mm push fit connection
  • Marking: Arrow logo, product code and manufacturers contact details on adhesive label on drip tray.
  • Installation Requirements R001 R390 R574
  • Model
    AB18
  • Manufacturer: Arrow Valves Ltd
    Company Name
    Arrow Valves Ltd
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WRAS Approval Number: 1810084

Type `AB` airgap (verified by test - suitable for backflow protection against fluid category 5) with flow controlled via a solenoid valve. The solenoid valve incorporates a flow regulator and a strainer on the inlet. The product incorporates an EPDM gasket, a Y-pattern strainer with stainless steel mesh, a ¾” BSP (F) x ½” BSP (F) adaptor, a double check valve assembly, verified by test (suitable for backflow protection against Fluid Category 3), a ¾” BSP (M) x ½” BSP (F) adaptor, a dual layer PVC hose (grey outer/black inner) with ¾” captive nut end connections and two EPDM gaskets installed in this order prior to the solenoid, and a copper heat exchanger between the solenoid valve and the ‘AB’ air gap. Maximum working pressure 7.0 Bar. Maximum operating temperature 50°C.

  • Section: 0009 Backflow Prevention Devices
  • Section Subtitle: SCHEDULE 2 - Section 6.2 - Type AB - Air gap with weir overflow.
  • WRAS Approval Number: 1810084
  • Expiry date: 31/10/2023
  • Note: This appliance incorporates a Fluid Category 5 backflow prevention device.
  • Size: ¾” BSP (F) (Y-pattern strainer)
  • Marking: Electrolux and model on air gap body
  • Installation Requirements R001 R008 R574
  • Model
    AGAB02
  • Factor: Electrolux Professional.
    Company Name
    Electrolux Professional.
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WRAS Approval Number: 1901380

Type `AB` airgap (verified by test - suitable for backflow protection against fluid category 5). from polypropylene. Maximum working pressure 6.0 bar. Maximum operating temperature 60°C.

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WRAS Approval Number: 1901351

Type `AB` airgap (verified by test - suitable for backflow protection against fluid category 5). manufactured from polypropylene. Maximum working pressure 6.0 bar. Maximum operating temperature 60°C

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WRAS Approval Number: 1901045

Type `AB` airgap (verified by test - suitable for backflow protection against fluid category 5) with flow controlled via a solenoid valve. The solenoid valve incorporates a flow regulator and a strainer on the inlet. The product incorporates an EPDM gasket, a Y-pattern strainer with stainless steel mesh, a dual layer PVC hose (grey outer/black inner) with ¾” captive nut end connections and two EPDM gaskets installed in this order prior to the solenoid. Maximum working pressure 7.0 Bar. Maximum operating temperature 60°C.

  • Section: 0009 Backflow Prevention Devices
  • Section Subtitle: SCHEDULE 2 - Section 6.2 - Type AB - Air gap with weir overflow.
  • WRAS Approval Number: 1901045
  • Expiry date: 31/01/2024
  • Note: This assembly incorporates a Fluid Category 5 backflow prevention device.
  • Size: ¾” BSP (F)
  • Marking: Electrolux and model on adhesive label on air gap body
  • Installation Requirements R001 R008 R574
  • Model
    AGAB01a, AGAB01b & AGAB01c.
  • Manufacturer: Electrolux Professional SpA
    Company Name
    Electrolux Professional SpA
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WRAS Approval Number: 1905314

Type AB air gap arrangement consisting of an inline strainer and solenoid valve feeding a break cistern via a type `AB` airgap (verified by test - suitable for backflow protection against fluid category 5). Maximum working pressure 6.0 bar. Maximum operating temperature 60°C.

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WRAS Approval Number: 2001086

Range of type `AB` airgap (verified by test - suitable for backflow protection against fluid category 5). with flow control via solenoid valves incorporating flow restrictors. Maximum working pressure 6.0 bar. Maximum operating temperature 60ºC.

  • Section: 0009 Backflow Prevention Devices
  • Section Subtitle: SCHEDULE 2 - Section 6.2 - Type AB - Air gap with weir overflow.
  • WRAS Approval Number: 2001086
  • Expiry date: 31/01/2025
  • Size: Dual layered PVC flexible hose with 3/4" BSP captive nut end connections.
  • Marking: ALI Group SRL, model, max flow rate and max temp on adhesive label on body.
  • Installation Requirements R001 R008 R520 R574
  • Model
    DW15735/W1 - AB air gap arrangement with 2.4l receiving vessel and one inlet DW15720/W1 - AB air gap arrangement with 3.5l receiving vessel and one inlet DW15735/W3 - AB air gap arrangement with 2.4l receiving vessel and three inlets DW15720/W3 - AB air gap arrangement with 3.5l receiving vessel and three inlets The difference between DW15735/Wx and DW15720/Wx is the volume of the receiving vessel. The difference between xxxxxxx/W1 and xxxxxxx/W3 is the number of the inlets of the air gap.
  • Manufacturer: ALI Group S.r.l.
    Company Name
    ALI Group S.r.l.
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WRAS Approval Number: 2003373

‘Boost a Break’ range of break tank and booster sets incorporating a solenoid valve controlling the flow, polypropylene tank and pump having a single check valve cartridge at the inlet (however the complete assembly has not been tested to demonstrate it provides adequate backflow protection). The pump sets have various flow rates and pressures depending in installation requirements. The tank incorporates a type `AB` airgap (verified by test - suitable for backflow protection against fluid category 5). Maximum working pressure 10.0 bar. Cold water use only.

  • Section: 0009 Backflow Prevention Devices
  • Section Subtitle: SCHEDULE 2 - Section 6.2 - Type AB - Air gap with weir overflow.
  • WRAS Approval Number: 2003373
  • Expiry date: 31/03/2025
  • Note: Non wholesome water use only.
  • Size: Stainless steel braided EPDM lined flexible hose with 1 ¼” captive nut end connections.
  • Marking: Arrow valves, model, serial no, Boost a Break & other technical information, www.arrowvalves.co.uk on control unit.
  • Installation Requirements R001 R415 R574
  • Model
    Single Pump, Single filling Solenoid BTAB3-5 - 2.0 bar BTAB3-7 - 3.0 bar BTAB3-10 - 4.0 bar BTAB1-5 - 5.0 bar BTAB1-6 - 6.0 bar BTAB1-7 - 7.0 bar BTAB1-8 - 8.0 bar BTAB1-9 - 9.0 bar BTAB1-10 - 10.0 bar BTAB5-4 - 1.5 bar Single Pump, two filling solenoids BTAB5-8 - 3.0 bar BTAB5-10 - 4.0 bar BTAB2-5 - 5.0 bar BTAB5-16 - 6.0 bar BTAB2-7 - 7.0 bar BTAB2-8 - 8.0 bar Dual pump, 24 litre break tank (up to 2.0 lt/s) BTAB3-7S - 3.0 bar BTAB3-10S - 4.0 bar BTAB3-5A - 2.0 bar BTAB5-4S - 1.5 bar BTAB5-8S - 3.0 bar BTAB3-7A - 3.0 bar BTAB3-10A - 4.0 bar Dual pump, 100 litre break tank (3.0 lt/s) BTAB5-8A - 3.0 bar Models added May 2020: BTAB700 2.0 bar BTAB900 3.0 bar BTAB1200 4.0 bar BTAB4-2 1.0 bar BTAB4-3 2.0 bar BTAB4-4 3.0 bar
  • Manufacturer: Arrow Valves Ltd
    Company Name
    Arrow Valves Ltd
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WRAS Approval Number: 2006006

Rainwater harvesting back up device used to top up rainwater harvesting tanks with mains water. The device is fed by a solenoid valve and discharges via a type `AB` airgap (verified by test - suitable for backflow protection against fluid category 5). Maximum working pressure 10.0 bar. Cold water use only.

  • Section: 0009 Backflow Prevention Devices
  • Section Subtitle: SCHEDULE 2 - Section 6.2 - Type AB - Air gap with weir overflow.
  • WRAS Approval Number: 2006006
  • Expiry date: 30/06/2025
  • Note: Push-fit inlet connection for use with John Guest Speedfit Layflat Polybutylene Barrier + John Guest Speedift pipe insert (not supplied) and copper pipe (not supplied).
  • Size: 15mm push-fit
  • Marking: Rainwater Harvesting logo on front cover. Rainwater Harvesting, serial number, model, product info on label inside cover.
  • Installation Requirements R001 R008 R574
  • Model
    BUB03
  • Manufacturer: Rainwater Harvesting Ltd.
    Company Name
    Rainwater Harvesting Ltd.
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WRAS Approval Number: 2010047

Type `AB` airgap (verified by test - suitable for backflow protection against fluid category 5) and flexible hose. Flow is controlled via a solenoid valve. Maximum working pressure 4.0 bar. Maximum operating temperature 55°C

  • Section: 0009 Backflow Prevention Devices
  • Section Subtitle: SCHEDULE 2 - Section 6.2 - Type AB - Air gap with weir overflow.
  • WRAS Approval Number: 2010047
  • Expiry date: 31/10/2025
  • Size: ¾” BSP (M)
  • Marking: Classeq, model number and flow arrow on label on body
  • Installation Requirements R001 R008 R574
  • Model
    200.0001
  • Manufacturer: Classeq Limited
    Company Name
    Classeq Limited
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WRAS Approval Number: 2010039

Rainwater top up cistern with flow controlled by solenoid valve and discharged via a type `AB` airgap (verified by test - suitable for backflow protection against fluid category 5). Product also incorporates a stop valve, a flow restrictor and a float valve on the inlet. Maximum working pressure 10.0 bar. Cold water use only.

  • Section: 0009 Backflow Prevention Devices
  • Section Subtitle: SCHEDULE 2 - Section 6.2 - Type AB - Air gap with weir overflow.
  • WRAS Approval Number: 2010039
  • Expiry date: 31/10/2025
  • Size: 15mm push fit
  • Marking: Rain Direct on front panel. Rainwater Harvesting, model, serial number and other product info on adhesive label inside panel.
  • Installation Requirements R001 R415 R574
  • Model
    RainDirector RD01
  • Manufacturer: Rainwater Harvesting Ltd.
    Company Name
    Rainwater Harvesting Ltd.
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WRAS Approval Number: 2105320

Standpipe assembly break tank with a Type ‘AB’ air gap (verified by test – suitable for backflow protection against fluid category 5) mounted to the top of the standpipe body. The tank is filled via a compact float valve and has two screened weir slots. Water is then supplied by gravity from the break tank to the hose outlet below. Flow is activated via a spherical valve located behind a lockable panel. In addition to the isolation valve, the product incorporates a single check valve assembly (suitable for backflow protection against Fluid Category 2) prior to the spherical valve and an in-line ‘Y’ pattern strainer after it. The spherical valve includes a drain plug to allow for draining. Insulation is provided up to the drain point. Maximum working pressure 10.0 bar. Cold water use only.

  • Section: 0009 Backflow Prevention Devices
  • Section Subtitle: SCHEDULE 2 - Section 6.2 - Type AB - Air gap with weir overflow.
  • WRAS Approval Number: 2105320
  • Expiry date: 31/05/2026
  • Note: The MDPE pipe manufactured to BS EN 12201-2:2011 noted under size is not supplied or included under the scope of this approval.
  • Size: 20mm, 25mm or 32mm compression (for use with MDPE pipe manufactured to BS EN 12201-2:2011 only).
  • Marking: Arrow valve, product code, manuafcturers website and tel no. on adhesive label on front cover.
  • Installation Requirements R001 R415 R430 R511
  • Model
    SPFC5X20, SPFC5X25, SPFC5X32.
  • Manufacturer: Arrow Valves Ltd
    Company Name
    Arrow Valves Ltd
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