Pumps and Pumping Systems

Diaphragm Pumps

Diaphragm pumps are types of positive displacement pumps used for pumping fluids. Diaphragm pumps use a reciprocating diaphragm mechanic to move fluids and are very reliable because they don’t contain parts that come across other parts. Diaphragm pumps can handle highly viscous liquids and have good dry running characteristics. Need help finding a diaphragm pump for your special application? Find global manufacturers of diaphragm pumps in our Equipment Guide.

Peristaltic Pumps

Peristaltic Pumps are types of positive displacement pumps used for pumping a variety of fluids. The fluid is contained within a flexible tube fitted inside a circular pump casing (though linear peristaltic pumps have been made). A rotor with a number of “rollers”, “shoes”, “wipers”, or “lobes” attached to the external circumference of the rotor compresses the flexible tube. Need help finding a fluid handling pump for your special application? Find global manufacturers of fluid handling pumps in our Equipment Guide.

Screw Pumps

Screw pumps are types of positive displacement pumps used for moving fluids with one of more screws. There are different types of screw pumps (Single spindle screw, three spindle screw). Each screw pump turns a screw to isolate an amount of fluid and contains it but has a different mechanical design. Need help finding a fluid handling pump for your special application? Find global manufacturers of fluid handling pumps in our Equipment Guide.

Centrifugal Pumps

Centrifugal pumps convert the rotational energy of an impeller into velocity and then into pressure, which makes them the most widely used pump type in industry. They handle clean and lightly contaminated liquids at high flow rates and moderate pressure, in single-stage, multistage, end-suction, split-case and submersible designs. Duty point, NPSH and impeller selection determine efficiency and service life. Find global manufacturers of centrifugal pumps in our Equipment Guide.

Dry Prime Pumps

Dry prime pumps evacuate air from the suction line themselves, using a vacuum pump or compressor, so they can start and re-prime without the casing being filled by hand. That makes them the standard choice for wellpoint dewatering, bypass and sewer overflow duties, construction sites and emergency water transfer, where the pump runs unattended and the suction line may draw air. Find global manufacturers of dry prime pumps in our Equipment Guide.

Gear Pumps

Gear pumps carry liquid around the outside of two meshing gears and force it out as the teeth come back together, giving a smooth, precisely metered flow that rises in step with shaft speed. External gear designs handle clean oils and chemicals at high pressure; internal gear designs cope with the viscous and shear-sensitive products found in lubrication, polymer, paint and food processing. Find global manufacturers of gear pumps in our Equipment Guide.

Progressive Cavity Pumps

Progressive cavity pumps move fluid through a series of sealed cavities formed between a helical rotor and a stator, delivering a smooth, almost pulsation-free flow that is proportional to the speed of the shaft. Because the flow is gentle and the pump handles high viscosity, abrasive slurries and shear-sensitive products, they are widely used in wastewater, food, chemical and oil and gas applications. Find global manufacturers of progressive cavity pumps in our Equipment Guide.

Rolling bearings are precision machine elements found in an immense range of applications. Bearings in pumps are small rolling parts that play a crucial role and support the rotating shafts. High quality bearings in pumps will reduce friction and makes the rotation even smoother. With proper lubrication and temperature monitoring, you can avoid pump breakdowns and makes your pump process more reliable even under the toughest conditions.

Turbine Pumps

Turbine pumps use one or more impellers running inside close-fitting diffusers to build head in stages, which lets them deliver high pressure at relatively low flow. Vertical turbine and regenerative turbine designs are used to lift water from deep wells and sumps, to boost pressure in irrigation and firefighting systems, and to handle clean, low-viscosity liquids in chemical and utility service. Find global manufacturers of turbine pumps in our Equipment Guide.

Reciprocating Pumps

Reciprocating pumps displace a fixed volume with every stroke of a piston, plunger or diaphragm, which lets them build very high pressure independently of the flow rate. Because the delivered volume per stroke is constant, they are the pump of choice for metering and injection duties, and for high-pressure service in oil and gas, chemical processing and water treatment. Pulsation dampers smooth the inherently pulsating flow. Find global manufacturers of reciprocating pumps in our Equipment Guide.

Pneumatic Pumps

Pneumatic pumps run on compressed air instead of an electric motor, which makes them inherently safe in explosive atmospheres and impossible to burn out if they run dry or stall against a closed valve. Air-operated double diaphragm and air-driven piston designs handle abrasive slurries, viscous products and solvent transfer, and their output can be varied simply by throttling the air supply. Find global manufacturers of pneumatic pumps in our Equipment Guide.

Rotary Piston Pumps

Rotary piston pumps carry liquid around the casing in the pockets formed between a rotating piston and the pump body, giving a steady, low-shear flow that is largely unaffected by changes in discharge pressure. Their close clearances and self-priming behaviour make them well suited to viscous products, food and dairy duties and vacuum service, where gentle handling and consistent output matter. Find global manufacturers of rotary piston pumps in our Equipment Guide.

Seals

Seals keep the pumped medium inside the pump where the rotating shaft passes through the casing. Mechanical seals press a rotating face against a stationary one with a controlled film of liquid between them; gland packing and lip seals serve simpler duties. Face materials, flush plans and support systems are chosen for the pressure, temperature and abrasiveness of the product, because seal failure is the most common reason a pump comes out of service. Find global manufacturers of pump seals in our Equipment Guide.

Chopper Pumps

Chopper pumps cut solids into small pieces as they enter the pump, using a hardened impeller running against a cutter bar, so that rags, fibres and debris pass through instead of blocking it. That makes them the standard solution for municipal wastewater, sludge, manure and industrial effluent, where clogging would otherwise mean repeated shutdowns and manual cleaning. Find global manufacturers of chopper pumps in our Equipment Guide.

Slurry Pumps

Slurry pumps move mixtures of liquid and abrasive solids, which wear an ordinary pump out in weeks. They are built with thick, replaceable wear parts in high-chrome alloy or rubber, wide open impellers that let solids pass, and heavy shafts and bearings to absorb the load. Mining, dredging, power generation and mineral processing are their main markets. Find global manufacturers of slurry pumps in our Equipment Guide.

Heavy-Duty Pumps

Heavy-duty pumps are built for continuous service under conditions that would shorten the life of a standard pump: abrasive or corrosive media, high temperature, high pressure, solids loading or round-the-clock operation. Reinforced casings, oversized shafts and bearings, upgraded materials and heavy-duty sealing arrangements extend the interval between overhauls in mining, steel, pulp and paper and heavy chemical plants. Find global manufacturers of heavy-duty pumps in our Equipment Guide.