TDV-100 Timed Discharge Water Valve

The TDV-100 Timed Discharge Water Valve

TDV-100 Timed Discharge Water Valve

The TDV-100 timed discharge water valve opens a solenoid valve at fixed intervals to dose a preset volume of water. Developed in collaboration with public health engineers, the TDV-100 water valve helps minimise stagnation of water.

Additional applications include refreshing dead leg pipes to rarely or unused pipes in unoccupied parts of buildings and to replenish seals in traps, gullies and drains compensating for loss of water due to evaporation.

The TDV-100 water valve control is supplied ready wired and is simple to install & setup with clearly marked controls to set the necessary parameters.

If you need to save time on site and can provide us with the settings, we’ll set the on and off times for you. Just let us know.

If you have a specific requirement please contact us on 01603 720999 to discuss, or email

Specification for TDV-100 Timed Discharge Water Valve

Dosing Volume / Interval: To meet all needs the on (valve opening time) and the off (interval) is adjustable from 0.1 seconds to 100 hours.

Solenoid valve: Brass Normally Closed (fail safe), 1/2″ British Standard Pipe (BSP) female threads, 13.5mm orifice, pressure range 0.35 – 10 Bar, WRAS approved.

Please contact us for alternative valve sizes – call 01603 720999 or email

Timing options: the default sequence: on – off – on – off – on. By breaking or removing the internal yellow wire link, the sequence can be changed to off – on – off – on – off.

Power supply: The TDV-100 can be operated from 12 – 240VAC/DC (50/60HZ). Please note that the solenoid valve coil must match the supply voltage and vice versa.

Cables: Power and valve cables are supplied to a nominal 2m length. Core size is 0.75mm²

Enclosure: Size 148x88x41mm (excluding cable glands) in white PVC.


FEATURES of the Timed Discharge Water Valve

  • Dosing volume and interval easily adjusted
  • Timing ranges from 0.1 seconds to 100 hours
  • Fail safe Normally Closed WRAS solenoid valve
  • 12 – 240VAC/DC (50/60HZ) power options
  • Prewired – easy to install
  • Manufactured in the UK
Price from £208.96 + VAT