Centrifugal Pumps

Centrifugal pumps, the most common type of pump, are simple in concept and construction. This device first converts mechanical energy of a motor into kinetic energy and then into potential energy in the form of pressure energy of the pumped fluid.

As one of the most trusted centrifugal and chemical pumps manufacturers, Rotech Pumps & Systems Inc. provides its customers an extensive range of quality pumps at competitive price and minimum lead time.

Catering to requirements of diverse industrial applications and customers’ need for complete pumping solutions, Rotech’s centrifugal pumps make tasks easier and help to yield better results.

Rotech’s robust centrifugal pumps are used in multitude of applications including residential, commercial, industrial and municipal. Different types of centrifugal pumps supplied by the company are close-coupled pumps, frame mounted end suction, ANSI chemical process pumps, self-priming, vertical inline pumps, horizontal end suction and split case centrifugal pumps, stainless steel end suction centrifugal pumps, vertical multistage pumps, vertical sump, vertical and horizontal non-clog pumps in various material of construction like cast iron and stainless steel.

Furthermore, Rotech also offers pumps for city water, municipal and waste water, sewage, circulating water, heating and ventilation air conditions (HVAC), solid handling, boiler feed, cooling tower, apartment building, chillers, pharmaceuticals, petrochemicals, oil & gas refineries, industrial chemical waste etc.

Rotech’s DN Series end suction centrifugal pumps are frame mounted pumps coupled with electric motors by flexible type of coupling. DN series end suction pumps are designed for pump applications in accordance with standards developed by the Hydraulic Institute (HI) and the National Electrical Manufacturers Association (NEMA). These pumps are designed for applications in medium duty service, in heating and air conditioning, booster and general circulating services.

DN Series end suction centrifugal pumps are also used for city water, municipality, irrigation, HVAC, apartment building, effluent treatment, cooling tower, circulation water, chillers, petrochemicals, refineries and pharmaceutical applications amongst others.

DN Series centrifugal end suction pump is available in cast iron bronze fitted and all iron Materials of Construction (MOC) with type 21 mechanical seals. All stainless steel Materials of Construction can be supplied upon request.

DN Series end suction pump casing is fitted with a bronze replaceable wear ring. The pipe connection flanges are equivalent to 150# ANSI flanges rated for 175# Maximum Working Pressure (MWP). Rotech can supply end suction centrifugal pump with 200# or higher rated ANSI flange connections if required.

DN Series horizontal end suction pumps are furnished with enclosed dynamically balanced impellers for smooth and low vibration operation. DN Series end suction centrifugal pump delivers variety, durability, standardized options and configurations.

Rotech designs tough and versatile DN Series end suction pumps to meet your pumping needs. Please contact us to find out more about DN Series options and prices.

Self Priming Pumps – SCP/SFP Series


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Rotech self-priming centrifugal pumps are capable of creating vacuum sufficient to lift liquids from heights up to 25 feet above the source. Once primed, the pump's built in flapper valve will maintain a full column of liquid in the suction line.

Rotech’s SCP/SFP series pumps are fully assembled and run tested that can be easily coupled to a number of drivers such as hydraulic motors, 56C and 145TC frame motors and gas engines. A bearing pedestal is also available for T-frame motor or belt drive.

SCP/SFP series pumps possess a semi-open dynamically balanced impeller along with other regular features such as stainless steel drive sleeve, renewable wear plate and stainless steel fasteners. As per requirements, other options include double grease-lubricated seals, stainless steel impeller and seals for all types of abrasive and / or corrosive services.

SCP/SFP series of self-priming pumps are commonly used in industrial, OEM, agricultural and marine applications, such as: bilge pumps, auxiliary fire pumps, ballast transfer pumps, wash-down pumps, fertilizer and pesticide pumps, applicators & sprayers, blending pumps, nurse tanks, bulk transfer pumps and much more.

Rotech manufactured self-priming centrifugal pumps are designed for economical and trouble-free operation in handling solids-laden liquids and slurries. A self-priming centrifugal pump possesses a large volute design that allows automatic re-priming in a completely open system. These pumps can re-prime itself without the need of suction or discharge check valves. However, this is possible only with partially filled pumps and completely dry suction line.

Depending on the type of model, a self-priming centrifugal pump can handle up to 75mm spherical solids. In case the shaft or bearings of SPT series pumps require service or repair, it is possible to remove the entire rotating assembly without disturbing pump casing or pipelines. Rotating assembly is sealed with an O-Ring, allowing for external adjustments of clearance.

Self-priming centrifugal pumps are very effective as they eliminate the need of valves, vacuum and ejector pumps which can get clogged or become impractical for usage after prolonged operation.

Another major product of the company is vertical inline centrifugal pumps. These pumps are close coupled pumps eliminating the need for extra space. Vertical inline pumps can be mounted horizontally as well as vertically directly into a pipeline.

RST series pumps are equivalent to Gould NPE series pumps or Ebara CDU series of end suction pumps. The Rotech RST Series of centrifugal pumps are designed for continuous duty performance. The pumps are manufactured in welded 304 stainless steel for reduced corrosion and - as a standard - are fitted with a ceramic/carbon graphite / nitrile mechanical seal. They are single stage end suction centrifugal pumps close coupled to NEMA standard motors with enclosed impellers for maximum efficiency. Motors are NEMA 56J industry standard and are available in ODP , TEFC and explosion-proof enclosures.

Vertical Multistage pumps – RVMS Series


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Rotech supplies robust vertical multistage pumps that are designed to occupy minimum space with less power consumption. Each vertical multistage pump is equipped with superior quality heavy duty upper & lower casing. For smooth working under stringent conditions, these pumps boost high quality shaft and impeller. Like vertical inline pumps and end suction pumps, vertical multistage pumps also come with ANSI flange connections.

Features:
Possesses NEMA standard electric motors
Each part wetted with SS 304 Or SS316 stainless steel
Fitted with cartridge mechanical seal for easy removal
In-line design for easy installation and space saving
Vibration/Noise free design
Easy maintenance

Rotech Pumps is among the most widely recognized pump brands in North America, supplying industrial pumps such as self-priming centrifugal pumps, ANSI chemical pumps and vertical multistage pumps to a wide range of industries and services.

Vertical Inline Pumps - RVI80 Series


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RVI80 Series Pumps are vertical inline centrifugal pumps. These are close coupled pumps designed for easy installation. A vertical inline pump can be mounted horizontally and vertically directly into a pipeline. The suction and discharge connections are on the same center line in opposite direction at 180o part.

Rotech’s vertical inline centrifugal pumps come with radially split pump casing or volute with equal suction and discharge connection which is supplied with standard 125# ANSI flange connections working pressure up to 175 psi. Options are available for 250# and 300# working pressure ANSI flange connections.

Casing of these vertical inline centrifugal pumps has integral cast floor support to mount on base or floor and ensure vibration free mounting.

Similar to end suction pumps, vertical inline pumps are also used in heating and air conditioning, apartment building, industrial process systems, pressure boosting systems, general circulating water services etc.

In case your system application requires pump that can re-prime itself without the need of suction or discharge check valves, opt for self-priming pumps.

The company’s other popular products include self-priming pumps and ANSI pumps.

Rotech’s DNJ Series end suction close coupled centrifugal pumps are close coupled with standard JM solid shaft motors. Similar to horizontal end suction pumps, these pumps are also designed in compliance with the standards developed by the Hydraulic Institute (HI) and the National Electrical Manufacturers Association (NEMA).

DNJ Series close coupled centrifugal pumps are designed solely for applications in medium duty service, in heating and air conditioning, booster and general circulating.

DNJ Series end suction pumps are available in cast iron bronze fitted and all iron Materials of Construction (MOC) with type 21 mechanical seals. If required, all stainless steel Materials of Construction can be supplied upon request.

DNJ Series close coupled centrifugal pump casing is fitted with a bronze replaceable wear ring. The pipe connection flanges are equivalent to 150# ANSI flanges rated for 175# Maximum Working Pressure (MWP). Depending on the application, Rotech can supply close coupled pumps with 200# or higher rated ANSI flange connections.

For smooth and low vibration operation, Rotech’s end suction pumps are furnished with enclosed dynamically balanced impellers. DNJ Series end suction close coupled centrifugal pump delivers variety, durability, standardized options and configurations.

To meet the pumping needs of clients, Rotech designs many diverse robust pumps namely centrifugal chemical pumps, vertical inline pumps, vertical multistage pumps etc. Please contact us to know more about our other popular products such as ball check valves, mechanical seal, replacement pump parts and accessories.

End Suction Pumps – RCP Series


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Rotech’s RCP series end suction pumps are multi-purpose pumps that boast robust design to give maximum output. It consists of axial suction port, radial discharge port and horizontal shaft. They have the back pull-out design to ease the removal of coupling, motor and impeller without disturbing the entire pump housing.

RCP series end suction pumps are non-self-priming single stage centrifugal pumps. These pumps are suitable for wide range of applications such as industrial liquid transfer, industrial pressure boosting, water supply, HVAC (heating, ventilation and air-conditioning), and irrigation.