Screws Pumps

Driscoil Equipment offers industrial Positive Displacement (PD) Pumps designed for dependable fluid transfer, high-pressure service and applications requiring controlled, consistent flow. The units can be supplied as standalone pumps or complete skid-mounted packages with drive systems, controls, instrumentation and protection accessories.

1. General Technical Specification

Specification Details

Equipment Type Positive Displacement Pump

Configuration Skid-mounted / base-mounted

Pump Technology Rotary or reciprocating positive displacement

Available Types Screw, progressive cavity, gear, lobe, piston, plunger and diaphragm

Capacity Approximately 0.01–1,000+ m³/hr, depending on model

Operating Pressure Application-dependent; from low-pressure transfer to high-pressure service

Operating Speed Typically 50–1,800 RPM for rotary configurations

Drive Options Electric motor, diesel engine or hydraulic motor

Drive Power Application-dependent; from small fractional-kW systems to several hundred kW

Fluid Compatibility Water, crude oil, fuel, chemicals, sludge, slurry and other compatible fluids

Viscosity Range Low to very high viscosity, depending on pump configuration

Temperature Range Application-dependent; commonly approximately -20°C to +200°C

Pump Casing Carbon steel, cast iron, ductile iron, stainless steel or duplex

Wetted Components Selected according to fluid chemistry and operating conditions

Shaft Material Carbon steel, stainless steel or application-specific alloy

Sealing System Mechanical seal, cartridge seal or gland packing

Inlet/Outlet Connections Flanged or threaded, according to specification

Mounting Heavy-duty fabricated steel skid/base frame

Control Local control panel, starter, PLC and/or VFD

Instrumentation Pressure, temperature and optional flow monitoring

Protection Pressure relief/bypass, overload protection and emergency shutdown

Installation Onshore, offshore, industrial or mobile skid application

2. Key Technical Features

High-Pressure Performance

Positive displacement technology is suitable for applications requiring controlled fluid movement against relatively high discharge pressures.

Consistent Flow

The pump delivers a defined volume of fluid per revolution or stroke. Flow can therefore be controlled by adjusting pump speed where the drive system permits.

Viscous-Fluid Handling

Depending on the pump design, PD pumps can efficiently handle fluids considerably more viscous than those normally handled by conventional centrifugal pumps.

Self-Priming Capability

Many PD pump configurations provide self-priming capability, subject to the manufacturer's specified suction conditions.

Variable-Speed Operation

Electric-motor-driven packages can be equipped with a Variable Frequency Drive (VFD) to regulate pump speed and consequently adjust flow.

Heavy-Duty Construction

The pump and skid can be manufactured using materials selected for demanding oil & gas, petrochemical, wastewater and industrial environments. Driscoil Equipment supplies high-performance Positive Displacement Pumps engineered for reliable fluid transfer across the oil & gas, petrochemical, marine, wastewater, chemical, construction and industrial sectors.

Our PD pump packages are available in rotary and reciprocating configurations and can be supplied with electric, diesel or hydraulic drives. Packages can be configured with heavy-duty skids, gearboxes, control panels, VFDs, instrumentation, valves, pressure-relief systems and other accessories to meet specific operating requirements.

Designed for applications involving high pressure, controlled flow, viscous fluids, sludge, slurry, hydrocarbons and process fluids, these pumps provide a dependable solution for demanding fluid-transfer operations.

Available for sale with application-specific flow rates, pressure ratings, materials of construction and drive configurations.

Contact Driscoil Equipment for technical selection, quotation and equipment availability.