Backflow Prevention Devices

Section Code 0014 : SCHEDULE 2 - Section 6.2. Type DC - Pipe interrupter with permanent atmosphere vent. The device must be fitted with the lowest point of the air aperture not less than 150mm above the free discharge point, or spillover level of an appliance, and have no valve, flow restrictor or tap on its outlet.

Back To Directory Sections

WRAS Approval Number: 1806069

DC type pipe interrupter with a plastic body. The permanent vents are shrouded. The product incorporates a grey plastic flow regulator (4L/m) on the inlet. From October 2018, models are also available with either a brown (3L/m) or yellow (5L/m) plastic flow regulator. Maximum working pressure 10.0 bar. Cold water use only.

  • Section: 0014 Backflow Prevention Devices
  • Section Subtitle: SCHEDULE 2 - Section 6.2. Type DC - Pipe interrupter with permanent atmosphere vent. The device must be fitted with the lowest point of the air aperture not less than 150mm above the free discharge point, or spillover level of an appliance, and have no valve, flow restrictor or tap on its outlet.
  • WRAS Approval Number: 1806069
  • Expiry date: 30/06/2023
  • Note: Claims for flow rate are made by the manufacturer and not considered part of the listing.
  • Size: ¾” BSP (F) inlet x ¾” BSP (M) outlet
  • Marking: Cistermiser and air gap type (DC) on interrupter shroud
  • Installation Requirements R001
  • Model
    EF/BF
  • Factor: Cistermiser Ltd
    Company Name
    Cistermiser Ltd
    View All Listings by this Company

Print This Approval


WRAS Approval Number: 1811702

Range of type DC pipe interrupters with chromium plated brass bodies. Maximum working pressure 10.0 bar. Maximum operating temperature 60°C

  • Section: 0014 Backflow Prevention Devices
  • Section Subtitle: SCHEDULE 2 - Section 6.2. Type DC - Pipe interrupter with permanent atmosphere vent. The device must be fitted with the lowest point of the air aperture not less than 150mm above the free discharge point, or spillover level of an appliance, and have no valve, flow restrictor or tap on its outlet.
  • WRAS Approval Number: 1811702
  • Expiry date: 30/11/2023
  • Size: DN15 - ½” BSP (M) & DN20 - ¾” BSP (M).
  • Marking: IAT (brand of Crane), size and flow arrow on body
  • Installation Requirements R001
  • Model
    Nabic Fig. 256A: DN15 N-256A-015 & DN20 N-256A-020.
  • Manufacturer: Crane Building Services & Utilities
    Company Name
    Crane Building Services & Utilities
    View All Listings by this Company

Print This Approval


WRAS Approval Number: 1812355

DC type pipe interrupters with a permanent atmospheric vent and DZR brass body, NBR ‘O’ ring and gaskets. Maximum working pressure 10.0 bar. Cold water use only.

  • Section: 0014 Backflow Prevention Devices
  • Section Subtitle: SCHEDULE 2 - Section 6.2. Type DC - Pipe interrupter with permanent atmosphere vent. The device must be fitted with the lowest point of the air aperture not less than 150mm above the free discharge point, or spillover level of an appliance, and have no valve, flow restrictor or tap on its outlet.
  • WRAS Approval Number: 1812355
  • Expiry date: 31/12/2023
  • Size: See model
  • Marking: Broen-lab, & CR on body
  • Installation Requirements R001 R165
  • Model
    15279709 – M19x1/2” BSP M 15279719 – ½” x ½” BSP M 15279729 – 3/8” x ½” BSP M 15279739 – M19 x 3/8” BSP F 15279749 - ½” x ½” BSP F 15279759 - 3/8” x 3/8” BSP F
  • Manufacturer: Broen-Lab A/S
    Company Name
    Broen-Lab A/S
    View All Listings by this Company

Print This Approval


WRAS Approval Number: 1906019

DC type pipe interrupters with a permanent atmospheric vent, brass body and NBR O-Ring. Maximum working pressure 10.0 bar. Maximum operating temperature 85˚C

  • Section: 0014 Backflow Prevention Devices
  • Section Subtitle: SCHEDULE 2 - Section 6.2. Type DC - Pipe interrupter with permanent atmosphere vent. The device must be fitted with the lowest point of the air aperture not less than 150mm above the free discharge point, or spillover level of an appliance, and have no valve, flow restrictor or tap on its outlet.
  • WRAS Approval Number: 1906019
  • Expiry date: 30/06/2024
  • Size: 3/8” BSP (M)
  • Marking: Watersaver on pipe interrupter shroud
  • Installation Requirements R001 R165
  • Model
    BT118 Model
  • Factor: WaterSaver Faucet Co.
    Company Name
    WaterSaver Faucet Co.
    View All Listings by this Company

Print This Approval


WRAS Approval Number: 2104337

DC type pipe interrupter with a permanent atmospheric vent (DZR brass body) incorporating a flow regulator at the inlet and brass shroud. Maximum working pressure 10.0 bar. Cold water use only.

  • Section: 0014 Backflow Prevention Devices
  • Section Subtitle: SCHEDULE 2 - Section 6.2. Type DC - Pipe interrupter with permanent atmosphere vent. The device must be fitted with the lowest point of the air aperture not less than 150mm above the free discharge point, or spillover level of an appliance, and have no valve, flow restrictor or tap on its outlet.
  • WRAS Approval Number: 2104337
  • Expiry date: 30/04/2026
  • Size: 15mm x 22mm compression
  • Marking: Marking: Dudley, DN15, CR, DC direction of flow arrow on shroud body.
  • Installation Requirements R001 R165
  • Model
    Dudley DC pipe interrupter
  • Manufacturer: Thomas Dudley Limited
    Company Name
    Thomas Dudley Limited
    View All Listings by this Company

Print This Approval


WRAS Approval Number: 2106039

DC type pipe interrupter with a permanent atmospheric vent and DZR brass body and EPDM gasket. Maximum working pressure 3.0 bar. Maximum operating temperature 85°C.

  • Section: 0014 Backflow Prevention Devices
  • Section Subtitle: SCHEDULE 2 - Section 6.2. Type DC - Pipe interrupter with permanent atmosphere vent. The device must be fitted with the lowest point of the air aperture not less than 150mm above the free discharge point, or spillover level of an appliance, and have no valve, flow restrictor or tap on its outlet.
  • WRAS Approval Number: 2106039
  • Expiry date: 30/06/2026
  • Size: ½” BSP (F) inlet/½” BSP (M) outlet
  • Marking: TOF logo, date of manufacture (DD-MM-YYYY), flow arrow, CR on body
  • Installation Requirements R001
  • Model
    1000/551
  • Manufacturer: TOF SRL
    Company Name
    TOF SRL
    View All Listings by this Company

Print This Approval


Show Per Page
5102050Show All

Back To Directory Sections

Page of