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Rotary vane pump designed for small conditions
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Rotary vane pump designed for small conditions The Thomas Products division of Gardner Denver based in Memmingen, Germany, has developed a rotary vane pump especially designed for small installation conditions. Because of the flat, electronically commutated motor and the pump room’s particular geometry, very compact dimensions as well as a low weight are achieved. A free flow rate of 8.5 l/min is reached despite the pump’s overall dimensions of 50x50x34. The maximum pressure and end vacuum is 450 / -450 mbar relative and the power consumption is listed at 0.7 Watt. Due to the EC motor, lifetimes of up to 10,000 hours are obtainable
Gardner Denver’s rotary vane pump designed for small installations.
depending on the operating conditions. The pump is suitable for applications including gas analysis, the air supply for fuel cells and seat comfort solutions.
New drive system offers dosing flexibility ProMinent Fluid Controls has launched a diaphragm dosing pump which features a controlled solenoid drive system incorporating the company’s optoGuard hydraulic monitoring functions. According to ProMinent, the optoDrive drive system gives flexibility in dosing and control and extends the Delta pump’s capability to include continuous dosing. The new drive allows a slow pressure output stroke to be set for almost continuous dosing or a fast stroke to be set for pulsed dosing. As well as this, the pressure of the suction stroke can be adjusted to give greater control over a wide range of applications. The combination of different suction and stroke lengths means that the pump can be adapted to the properties of the dosing medium and to the process conditions, with slowing down the suction stroke suitable for highly viscous or outgassing
WORLD PUMPS October 2006
fluids. This makes it possible for the Delta pump to handle a wider range of applications, reducing the need to have additional pumps or accessories. The Delta series has a capacity of up to 80 l/h at 2 bar backpressure or up to 10 l/h at 16 bar, with an extensive capacity adjustment range. A capacity range of 1: 36.000 can be achieved on a single pump by adjusting both stroke frequency and volume. The maximum stroke frequency is 200 strokes/minute (or 12,000 strokes/ hour). For almost continuous dosing, the stroke frequency can be set to up to 20 strokes per hour, ie, a slow pressure stroke can be extended to up to three minutes. The stroke volume can also be independently reduced to up to 30% of the maximum value. If continuous dosing is not required, the pump stroke rate can be reduced down to one dosing stroke per hour, ProMinent says.
www.worldpumps.com 9
Rotary vane pump designed for small conditions The Thomas Products division of Gardner Denver based in Memmingen, Germany, has developed a rotary vane pump especially designed for small installation conditions. Because of the flat, electronically commutated motor and the pump room’s particular geometry, very compact dimensions as well as a low weight are achieved. A free flow rate of 8.5 l/min is reached despite the pump’s overall dimensions of 50x50x34. The maximum pressure and end vacuum is 450 / -450 mbar relative and the power consumption is listed at 0.7 Watt. Due to the EC motor, lifetimes of up to 10,000 hours are obtainable
Gardner Denver’s rotary vane pump designed for small installations.
depending on the operating conditions. The pump is suitable for applications including gas analysis, the air supply for fuel cells and seat comfort solutions.
New drive system offers dosing flexibility ProMinent Fluid Controls has launched a diaphragm dosing pump which features a controlled solenoid drive system incorporating the company’s optoGuard hydraulic monitoring functions. According to ProMinent, the optoDrive drive system gives flexibility in dosing and control and extends the Delta pump’s capability to include continuous dosing. The new drive allows a slow pressure output stroke to be set for almost continuous dosing or a fast stroke to be set for pulsed dosing. As well as this, the pressure of the suction stroke can be adjusted to give greater control over a wide range of applications. The combination of different suction and stroke lengths means that the pump can be adapted to the properties of the dosing medium and to the process conditions, with slowing down the suction stroke suitable for highly viscous or outgassing
WORLD PUMPS October 2006
fluids. This makes it possible for the Delta pump to handle a wider range of applications, reducing the need to have additional pumps or accessories. The Delta series has a capacity of up to 80 l/h at 2 bar backpressure or up to 10 l/h at 16 bar, with an extensive capacity adjustment range. A capacity range of 1: 36.000 can be achieved on a single pump by adjusting both stroke frequency and volume. The maximum stroke frequency is 200 strokes/minute (or 12,000 strokes/ hour). For almost continuous dosing, the stroke frequency can be set to up to 20 strokes per hour, ie, a slow pressure stroke can be extended to up to three minutes. The stroke volume can also be independently reduced to up to 30% of the maximum value. If continuous dosing is not required, the pump stroke rate can be reduced down to one dosing stroke per hour, ProMinent says.
www.worldpumps.com 9