Positive Displacement Pumps

Positive Displacement (PD) Pumps are industrial pumps designed to move fluids by trapping a fixed volume of liquid and mechanically displacing it through the discharge line. They are ideal for applications requiring high pressure, accurate flow control and reliable handling of viscous or difficult fluids.

Key Specifications

Pump Type: Gear, Screw, Lobe, Piston, Plunger or Diaphragm

Flow Capacity: Approximately 1–1,500 m³/hr, depending on model

Pressure Rating: Up to 250 bar or higher for specialised units

Operating Temperature: Typically -20°C to +200°C, depending on construction and seals

Pump Speed: Approximately 50–1,800 RPM

Fluid Viscosity: Suitable for low- to high-viscosity fluids

Construction: Carbon steel, stainless steel, cast iron or duplex materials

Drive: Electric motor, diesel engine or hydraulic drive

Power Range: Typically 5–500 kW

Connection: Flanged, threaded or customised process connections

Seal Options: Mechanical seal, packing or magnetic drive

Control: Manual, variable-frequency drive (VFD) or automated control

Mounting: Skid-mounted, base-mounted or mobile configuration

Applications

Positive displacement pumps are suitable for:

Oil & gas production and processing

Crude oil and petroleum transfer

Sludge and wastewater handling

Chemical and process-fluid transfer

Drilling and completion operations

Mud and high-viscosity fluid transfer

Tank loading and unloading

Pipeline transfer systems

Marine and offshore operations

Industrial wastewater treatment

Technical Features

Constant and controlled flow at varying pressures

Excellent performance with viscous fluids

High-pressure pumping capability

Self-priming capability on many configurations

Robust construction for demanding industrial environments

Suitable for metering and dosing applications

Available with explosion-proof/ATEX-rated drives where required

Available for Sale

Driscoil Equipment supplies Positive Displacement Pumps in various capacities and configurations to meet oil & gas, industrial, marine, construction and wastewater requirements. Units can be supplied as standalone pumps or complete packaged systems with motor/engine, gearbox, skid, control panel and associated accessories.