Close Coupled

IA series

Suction: 1½” – 8″ NPT or flange.

Discharge: 1″ – 6″ NPT or flange.

HP: 2 to 125

RPM: 1750 & 3500

Impeller: enclosed, dynamically balanced. Cast iron ASTM A-48, class 30.

Motor: high quality premium efficiency TEFC or ODP electric motors, designed & developed in accordance with industry standards for industrial and commercial pumping applications.

1 & 3 phases, 60 Hz

Frame sizes: 182JM to 405JM

IB series

Suction: 2″ – 3″ NPT, female.

Discharge: 1½” – 2½” NPT, female.

HP: 1 to 15

RPM: 1750 & 3500

Impeller: investment casting, statically balanced. Stainless steel 304.

Motor: high quality premium efficiency TEFC or ODP electric motors, designed & developed in accordance with industry standards for industrial and commercial pumping applications.

1 & 3 phases, 60 Hz

Frame sizes: 143JM to 254JM

IC1¼ series

Suction: 1½” NPT, female.

Discharge: 1¼” NPT, female.

HP: 1 to 7.5

RPM: 3500

Impeller: 5 vanes, closed, statically balanced. Cast iron ASTM A-48, class 30.

Motor: high quality premium efficiency TEFC or ODP electric motors, designed & developed in accordance with industry standards for industrial and commercial pumping applications.

1 & 3 phases, 60 Hz

IC1½ series

Suction: 1½” NPT, female.

Discharge: 1½” NPT, female.

HP: 1.5 to 7.5

RPM: 3500

Impeller: 5 vanes, closed, statically balanced. Cast iron ASTM A-48, class 30.

Motor: high quality premium efficiency TEFC or ODP electric motors, designed & developed in accordance with industry standards for industrial and commercial pumping applications.

1 & 3 phases, 60 Hz

IC1½H series

Suction: 1½” NPT, female.

Discharge: 1½” NPT, female.

HP: 1 to 15

RPM: 3500

Impeller: 5 vanes, closed, statically balanced. Cast iron ASTM A-48, class 30.

Motor: high quality premium efficiency TEFC or ODP electric motors, designed & developed in accordance with industry standards for industrial and commercial pumping applications.

1 & 3 phases, 60 Hz

Stainless Steel

CD series

Suction: 1¼” & 1½” NPT horizontal.

Discharge: 1″ & 1¼” NPT vertical.

HP: 1 to 3

RPM: 3500

Impeller: close type, 304 series stainless steel.

Motor: NEMA 56J, TEFC, 60 Hz, three phase, 230/460 volts.

PS series

Suction: 2″ & 2½”, 150 lb ANSI, flange horizontal.

Discharge: 1¼”, 1½” & 2″, 150 lb ANSI, flange vertical.

HP: 1 – 15

RPM: 1750 & 3450

Impeller: close type, 304 series stainless steel.

Motor: NEMA JM, TEFC, 60 Hz, three phase, 230/460 volts.

End-suction pumps are a type of centrifugal pump that is designed with the suction on one end and the discharge coming out from the top. The placement of its suction gives the end-suction name to the pump.

How End-Suction Pumps Work

The end-suction pump is a centrifugal pump. This means they provide momentum to the fluid moving into the pump with the help of impellers immersed in the fluid. This momentum then increases the pressure and flow at the discharge end of the pump.

Like all centrifugal pumps, end-suction pumps use impellers to move the fluid around and usually feature a single impeller. They are the most common type of configuration for centrifugal pumps, due to their cost effectiveness and the vast selection of sizes, materials of construction and versatility in many applications.

A conventional end-suction pump is designed with one impeller and one volute casing. The impeller is the rotating component of the pump that is usually made of iron, aluminum, steel or brass.

Their primary purpose is to aid in energy transfer between the pump’s motor to the fluid inside the pump. This is done by pushing a stream of energy to accelerate the fluid outwards from the center.

The volute casing, on the other hand, is a stationary casing in the shape of a curved funnel that receives fluids pumped by the impeller. Its function is to slow down the fluid’s rate of flow.

Once the fluid enters the pump, it will move along the vanes of the impeller, gaining in speed. The fluid then moves into the volute casing, and its high speed is converted to high pressure via diffusion. End-suction pumps use A.C. electric motors, except for few D.C. driven and hydraulic motors available on the market.

Types of End-Suction Pumps

End-suction pumps come in two types. The first one is a frame-mounted pump that is designed with a double volute and a separate shaft and bearings that are not in direct contact with the motor. Therefore, the coupling between the motor and the pump are required so energy can be transferred to keep the pump working and the fluids flowing.

This type of design features increased efficiency, lower life cycle costs and an ease of maintenance from the footed bearing frame. The impellers also offer a range of customizable features from reduced noise to reduced vibration and harshness.

The other type of end-suction pump is a closed coupled pump. Unlike its frame mounted counterpart, the closed coupled pump has a shaft and motor designed in a single system. The bearing and motors are also designed in a single system.

This means the impeller of the pump is attached to the end of the motor shaft, and the entire pump requires less space and is more cost effective. Closed coupled end-suction pumps also do not require alignments, since most of its components are already designed to be a system and work in harmony. This means a prolonged seal life and bearing life of the pump.

End-Suction Pump Uses

End-suction pumps have a wide range of applications across many industries. Examples of industries that use them include air conditioning, heating and ventilation, refrigeration, drainage and sprinkler systems.

When employed in applications containing solids, such as in chemical or food processing, end-suction pumps with open impellers are used. The pumps may also be designed to specific industry standards, such as the American National Standards Institute (ANSI) or the American Petroleum Institute (API) for use in hydrocarbon processing.

In contrast, applications involving pure fluids, such as clean water or oil, require closed impellers inside the pumps. This is done by having a mechanical seal or a magnetic drive.

A popular end-suction pump is the closed coupled ICI quarter series that features impellers with five vanes, and it is made from cast iron to ASTM A-48 standards. Another great end-suction pump is the IB series that has impellers protected by an investment casing. All our pumps feature high-quality premium efficiency electric motors on the inside, and stainless steel versions of pumps are also available.

Check out the rest of our pumps or give us a call if you need maintenance or cleaning. If you can’t find what you are looking for, don’t hesitate to contact us. Our team of experts will help you find the solution you are looking for.

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