Midi 3A Pump c/w 2 bar Pressure Switch

Stuart Turner 4 bar automatic flow switch pump, for use with the BTMIDI-3A.

• Backflow Prevention No
• Electrical Yes
• Isolating No

Where indicated on the drawing a Break Tank & Booster Set – model BTMIDI-3A1 shall be installed – as manufactured and distributed by Arrow Valves Ltd – Tel 01442 823123 www.arrowvalves.co.uk. The output pressure shall be 0.26 lt/s @ 2 bar and a closed valve head of 4.1 bar2. The unit shall be housed in a stainless steel cabinet which shall be mounted on a wall at a serviceable height. The internal cistern shall provide a type AB air gap. The cistern level shall be controlled automatically by a servo solenoid valve operated via stainless steel conductive electrodes and controller. A volt free BMS fault relay shall be provided – model BTBMS3. A low-level pump cut-out shall automatically reset once the cistern is sufficiently full3. The pump shall be continuously rated, feature brass wetted parts and be acoustically attenuated with anti-vibration mounts. The 22 mm overflow shall discharge in a safe and conspicuous manner. A 15 mm supply is required, which must maintain a dynamic pressure of 1.0 bar. The manufacturer’s flexible hose with servicing valve and strainer (supplied) shall be installed.

Amend as required
[1] BTMIDI-1
[1] BTMIDI-2A
[2] 0.17 lt/s @ 2 bar and a closed valve head of 3.1 bar (for BTMIDI-2A)
[2] 0.12 lt/s @ 2 bar and a closed valve head of 3.1 bar (for BTMIDI-1)
[3] delete for BTMIDI-1