TYPE A- Piston Dosing Pump

A- Type Piston Dosing Pump

A” type piston metering pumps are suitable for use when the liquid dosed is a non abrasive solution and high pressure is required.

The gearbox is a standard wormwheel reduction system coupled with a vertical mounted B14 shaped electric motor in accordance with UNEL-MEC specification. The mechanism for variation of the stroke length is a positive stroke spring return operated by an eccentric.

Stroke adjustment can be done manually, electrically (4-20mA; Profibus) and pneumatically. Different multiple head units are available on request. All the series can be ATEX certified.

Piston pumps are suitable for use when:

  • The liquid dosed is non abrasive
  • High pressure is required
  • A drip proof system is not required.
  • Flow rates – min 0.8l/h; max 1458l/h – standard
  • Pressure ranges from 3 to 10 bar
  • Flow rates – min 1.1l/h ; max 74.1l/h – high pressure
  • Pressure ranges from 50 to 250 bar
  • Available in 220V, 380V & 525V – IP55
  • Standard wet-end executions in PVC and 316 stainless steel.
  • Piston available in ceramic or stainless steel
  • Multi-headed pumps also available on request.

Stroke adjustment  can be carried out:

  • Manual: by means of a linear micrometre screw from 0-100%
  • Electrical: by means of a motor servo controller with a 4-20mA signal
  • Pneumatic: by means of a pneumatic servo controller.