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VACOMASS Binder Jet Control Valves

Description

VACOMASS Binder Jet Control Valves have been designed specifically for precise control of aeration in waste water treatment plants. VACOMASS Binder Jet Control Valves are available in sizes from 250 – 400mm they can accurately control air from 80 – 13,500Nm³/h (95 – 9,700SCFM) and have a linear control curve from 0 – 95% of their stroke. This leads to vastly improved DO control and in most cases leads to the DO set point being lowered, thereby saving significant amounts of energy. Pressure loss over a Jet Control Valve is also extremely low (particularly compared to the traditional butterfly valve) meaning that often very reasonable pay back times can be achieved without factoring in a lower DO set point (which improves the payback yet again).

The traditional aeration control valve in New Zealand is the butterfly valve which has a very unstable control curve leading to unstable DO values and they also have very high pressure losses – typically around 50 – 80mbar. The VACOMASS Jet Control Valves by Binder are the perfect answer to these issues.

  • Linear control curve which gives extremely precise control over the air flow leading to vastly improved control of the DO levels
  • Extremely low pressure drop. 10mbar is the maximum loss (which is also the maximum flow of the valve) however they typically run at 3 – 5mbar loss.
  • 14,400 actuator turns (about 5 minutes) are required to move the valve from fully open to fully closed. This slow acting mechanism stops the DO from getting ‘nervous’ and jumping about
  • Very low turbulence – in fact these valves act more like a flow conditioner. Dropper lines can be placed 0.5D after the valve eliminating what can be complex and expensive straight lengths to enable turbulence from other control valves.
  • Easy onsite tuning. Control valves with linear curves are very easy to write algorithms for! Whereas writing an algorithm for a control valve with a non-linear curve can take a long time and still have a less than desirable result.
  • Binder have their calibration and testing facility for air. This is a key point of difference as almost every other valve on the market has been designed and tested for liquid which acts quite differently to gas.
  • All stainless steel construction
  • Bubble tight shut off

Precise control of aeration air in sewage treatment plants

Binder VACOMASS Jet Control Valves – Technical Data Sheet

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