Pump Types

Bespoke Service

Our automated pump kits are completely configurable and designed to eliminate manual handling, reduce risk, ensure consistent recipes and reduce wastage. Designs are engineered specifically for your process whether they are baseplate mounted, within a mobile frame or in kit form with couplings, hose, dispensing nozzle, flowmeters, valves, control panels, inverter drives and monitoring systems.

Accessories

Pumps are only one part of the system, often ancillary equipment is required, such as; flow meters, filters, basket strainers, pulsation dampeners, hose reels, hose, nozzles, valves, inverter drives and control panels.Below are some of our accessories, contact us if you do not see what you require below.

AODD

An air operated diaphragm pump is a self-priming positive displacement pump driven by compressed air making the pump intrinsically safe. It works via two diaphragms that reciprocate back and forth via an air valve located in the main body of the pump. As one diaphragm fills with liquid the other dis...

Barrel

Barrel Pumps or container emptying pumps are pumps which are used to empty containers quickly, efficiently and safely. Fluids are supplied in a wide variety of different container sizes which can range from small totes of 50-100L, 205L Oil Drums, IBCS (Intermediate Bulk Container 1000L) as well as c...

Booster Sets

There are often cases where the existing mains pressure is inadequate to ensure supply to people in high rise apartments, hotels, industrial factories or outbuildings as water companies only have a responsibility to supply 9L/min at 1 bar pressure to the boundary of a property. Booster sets are a me...

Borehole

Borehole pumps are a type of submersible centrifugal pump of multistage design which can be submerged at large depths. They are typically designed to fit in narrow holes called boreholes which are drilled to extract water from water tables deep below ground. Learn more about Borehole Pumps from...

Centrifugal

Centrifugal pumps are the most common type of pump available and account for approximately 70% of pump types used and refers to one of the main three families of pumps. A single-stage centrifugal pump consists of one impeller rotating on a shaft within a pump casing which is designed to produce flui...

Circulator

Circulator pumps are pumps designed to circulate fluids within a heating system such as hot or cold water which may be mixed glycol to improve the thermal handling properties of water. A Circulator pump operates according to different pressure levels as thermostatic radiator valves are opened and cl...

Dosing and Metering

Positive displacement pumps have an expanding inlet causing fluids to enter the inlet of the pump, reaching parts of the pumps which form a decreasing cavity on the discharge of the pump causing the fluid to be discharged from the pump.Also known as volumetric pumps which produce the same volume or ...

Flexible Impeller

Flexible impeller pumps are a pump design which consists of a circular rubber impeller mounted within a casing. The casing is smaller than the unbent rubber vanes ensuring the rubber vanes make contact within the entire casing creating small chambers. The chambers operate similar to valves, making t...

Gear

There are two types of gear pump design which are internal eccentric (also known as helical gear) and external gear pumps. The design chosen for a process is dependent on the viscosity of the fluid and pressure required as the internal design is altered according to fluid type with differing st...

Hand Operated

Hand pumps are pumps which are operated manually by hand as opposed via electricity or air. Hand pumps can be of centrifugal or positive displacement technology where they can be piston or double diaphragm.Learn more about Hand Pumps from North Ridge Pumps, or read our Hand pump guide.

Lobe

Rotary Lobe pumps are similar to gear pumps in that the pump operates by two Y or I shaped lobes which are aligned vertically rotating within a pump casing. The timing is controlled via a gearbox and timing gear which prevents the lobes from making contact with each other. Lobes rotate within t...

Magnetic Drive

Pump heads are typically sealed using O rings and mechanical shaft seals. A pump head requires O rings and mechanical seal as the pump shaft enters the pump head to couple to the motor drive shaft. In a magnetic drive pump, the need for a mechanical seal and O Rings is eliminated as magnets are used...

Multistage

A multistage pump is used to generate higher pressures than is available with the use of a single impeller at maximum diameter. This is because once an impeller reaches a particular diameter the impeller side friction which increases with size decreases pump efficiency. This means it is necessary to...

Peripheral

A peripheral pump is a close-coupled centrifugal pump with an impeller consisting of a large number of radial vanes on the outside edge. The impeller rotates in a concentric casing channel with the liquid flowing between the vanes and casing transmitting large amounts of energy leading to a large in...

Peristaltic

A peristaltic pump is a positive displacement pump, which is self priming, hard wearing and accommodates fluids from water to sludges ranging in viscosity from a few cst to 55,000cst. Peristaltic pumps are a simple design of pump consisting of a single piece of hose connecting the inlet to the outle...

Piston/Plunger

Piston and plungers pumps are a reciprocating positive displacement pump.Piston pumps have displacement bodies which are disc-shaped with a piston sliding to and fro within a hollow cylinder sealing at the periphery. The seal within the pump slides back and forth meaning a piston pump is better suit...

Progressing Cavity

Progressive cavity pumps are a type of rotary positive displacement pump where a helical shaped rotor rotates within a stator which is fixed in place. As the rotor rotates, due to its helical shape a cavity is formed between the rotor and stator as it travels through the pump. The rotor within ...

Pump as Turbine

Pump as Turbine (PAT) is an advancement in pump technology that allows a pump to be used as a turbine to generate power when not operating in normal mode. Alternations in the hydraulic design facilitates the reverse flow of fluid to harness energy that would otherwise have been wasted.Read more about our Pumps as Turbines

Rotary Piston

A rotary piston pump is a self-priming reversible positive displacement pump which can deliver in high volume oils, viscous fluids such as resins and fuel efficiently. Rotary piston pumps typically handle up to 20,000cst and temperatures up to 300°C.A rotary piston pump operates by a piston sliding ...

Screw Pumps

Screw Pumps are a rotary positive displacement pump consisting of either twin screws or triple screws. In triple screw pumps a set of intermeshing screws of 2 driving screws and one idler screw form cavities in which fluid enters before being driven along by the two driving screws along the idler sc...

Self Priming Centrifugal

Centrifugal pumps which have the capability to pump mixtures of liquids with entrained gas, as well as liquids which have the ability to vent the suction line, are deemed to be self-priming pumps.Learn more about Self Priming Pumps from North Ridge Pumps.

Side Channel

A Side-Channel pump is a hybrid design of pump which has many features from self-priming, centrifugal, multistage and positive displacement pumps.Side Channel Pumps are self-priming enabling them to handle entrained gasses which are separated and produce high pressures but low amounts of flow in com...

Split Casing

Split casing pumps are where a pump casing has a joint which is either perpendicular to the shaft or longitudinally split. Longitudinally split pumps, such as our SDS double suction pumps, have a casing opening along the same direction of the shaft which enables very easy access to all internal...

Submersible

Submersible pumps are pumps which are completely immersed in the fluid being pumped. Submersible pumps are of centrifugal design and can operate either continuously or intermittently. They are typically controlled by float switches which can trigger operation at various levels with a sump in which t...

Vane

A vane pump is a self-priming positive displacement pump providing constant flow at varying pressures. A vane pump operates via a motor connected via a gearbox as typically the maximum rpm is 900. The pump is fitted with a relief valve to prevent the pump from building to a pressure which may damage...

Vertical Immersion

Vertical immersion pumps (also known as vertical column and shaft pumps) are a design whereby the motor is separated from the fluid being pumped. Typically used in tanks or pits in place of pumps which require flooded suction or priming.Learn more about Vertical Immersion pumps from North Ridge Pumps.

Vertical Inline Centrifugal

Vertical Inline Pumps are pumps where the inlet and outlet are in line. This arrangement is typically used where space is limited such as onboard a ship. The pump has a vertical drive shaft and can be fitted with a priming pump to enable the pump to be self-priming. Vertical inline pumps can be made...

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Pump Types

Bespoke Service

Bespoke Service

Accessories

Accessories

AODD

AODD

Barrel

Barrel

Booster Sets

Booster Sets

Borehole

Borehole

Centrifugal

Centrifugal

Circulator

Circulator

Dosing and Metering

Dosing and Metering

Flexible Impeller

Flexible Impeller

Gear

Gear

Hand Operated

Hand Operated

Lobe

Lobe

Magnetic Drive

Magnetic Drive

Multistage

Multistage

Peripheral

Peripheral

Peristaltic

Peristaltic

Piston/Plunger

Piston/Plunger

Progressing Cavity

Progressing Cavity

Pump as Turbine

Pump as Turbine

Rotary Piston

Rotary Piston

Screw Pumps

Screw Pumps

Self Priming Centrifugal

Self Priming Centrifugal

Side Channel

Side Channel

Split Casing

Split Casing

Submersible

Submersible

Vane

Vane

Vertical Immersion

Vertical Immersion

Vertical Inline Centrifugal

Vertical Inline Centrifugal

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