Product Details Supplier Info More products

Axflow has introduced a microprocessor-controlled device that reduces air consumption for larger-size air-operated double-diaphragm (AODD) pumps and can operate in arduous operating conditions.

Using the Mizair, it is possible to reduce air consumption by up to 50 per cent, with a minimal loss of fluid flow.

Designed for close coupling to the pump, Mizair requires a 24VDC power supply.

A self-powered Atex version is to be introduced later in 2010.

The Mizair consists of a high-flow, normally open, two-way valve and an electronic control unit.

The valve and control unit operate to deliver precisely timed pulses of air to the pump at the start of each pump stroke.

Since less air enters the pump, there is less air to exhaust, and this helps the pump to start its next cycle as there is less resistance to the return stroke.

This also results in a reduction in the noise level of the exhaust air.

Peter Carfrae, Wilden product manager, said: ‘The Mizair utilises an internal pressure sensor to monitor the air being supplied to the pump.

‘The characteristics of this signal enable the Mizair’s microcontroller to determine when the pump reaches the end of the stroke.

‘This information is used to time, precisely, the pulses of air entering the pump,’ he added.

The Mizair device is able to continuously monitor the speed and other operating parameters of the pump as well as make adjustments to the valve timing as required.

The Mizair is low on power consumption and has a long life cycle, according to the company.

‘It is a lightweight and compact unit that can be easily mounted directly onto the AODD pump and is tough enough to stand up to the potentially arduous operating conditions in which these types of pumps are used,’ said Carfrae.

View full profile