CAT (USA) - API 674 Plunger & Piston Pumps

CAT (USA) - API 674 Plunger & Piston Pumps

Plunger Pumps in Doha, Qatar

Piston Pumps in Doha, Qatar

API 674 Reciprocating Pumps in Doha, Qatar


Cat Pumps has been a leader selling precision triplex reciprocating pumps and systems for more than fifty years. Founded in 1968 by William L. Bruggeman, our Minneapolis, MN based company focuses on manufacturing and marketing the longest-lasting, most dependable high-pressure pumps available in the industry. 


Plunger Pumps: 

Industrial Duty High Pressure Positive Displacement Triplex Plunger Pumps 


Cat Pumps high-pressure plunger pumps are recognized in the industry as the longest-lasting, most reliable pumps available. Cat Pumps designs and builds products to the highest quality level because our customers depend on our products to keep their equipment running. 


Plunger pump performance range is 0.13 GPM to 240 GPM (0.49 to 908 LPM) and 100 PSI to 10,000 PSI (6.9 BAR to 689 BAR). Pumps are available in brass, nickel aluminum bronze, 304, 316, and duplex stainless steel. Pump drives include electric motor, gas/diesel engine, hydraulic, and pneumatic. Cat Pumps has built a worldwide distribution network for pumps, parts, and accessories when servicing is required. Our superior design, including proprietary seal and valve kits, makes maintenance easy. You can count on Cat Pumps to keep you running with the best service and fastest delivery in the business. 


Piston Pumps

Industrial Duty High Pressure Positive Displacement Triplex Piston Pumps

Cat Pumps high-pressure piston pumps are recognized in the industry as the longest-lasting, most reliable pumps available. Cat Pumps designs and builds products to the highest quality level because our customers depend on our products to keep their equipment running.

Piston pump performance range is 3.0 GPM to 60 GPM (11.3 to 227 LPM) and 100 PSI to 1,500 PSI (6.9 to 103 BAR). Piston pumps exhibit excellent suction capability, often not requiring flooded suction or booster pumps. Pumps are available with brass and 316 stainless steel manifolds and 304 stainless valve components. Cat Pumps has built a worldwide distribution network for pumps, parts, and accessories when servicing is required. Their superior design, including proprietary seal and valve kits, makes maintenance easy. You can count on Cat Pumps to keep you running with the best service and fastest delivery in the business.  


Stainless Steel Pumps

Industrial Duty, Corrosion Resistant Stainless Steel Pumps

Cat Pumps offers a complete line of stainless steel pumps to meet the demands of many industrial applications. Available as 304, 316 and duplex stainless steel, these pumps are stock items at Cat Pumps and offer a wide variety of flow and pressure ranges:  0.5 – 240 GPM, and 100 – 10,000 PSI. The stainless steel pumps offer superior corrosion resistance, strength and long life in the applications where aggressive liquids are being pumped. 


Flush Pumps

Industrial Duty Flushed Manifold Pumps for Low Lubricity and High Temperature Applications

Flush pumps are used for low lubricity liquids (Deionized water) and liquids with elevated temperatures. Like all standard plunger pumps, a flushed manifold pump is configured with an inlet and outlet port. However, on a flushed manifold pump, the manifold is also designed with an inlet and outlet flushing port to circulate liquid between the high pressure and low-pressure seals to extend seal life and reduce pump maintenance. Cat pumps flush-style pump models are indicated with the letter “C” or “K” at the end of the model number (i.e., 781K).

Benefits of flushed manifold pumps include:

  • Greatly increases seal life when used with low lubricity fluids such as deionized (Di) water
  • Cools seals, which extends seal life in applications with elevated pumped liquid temperatures
  • Reduces thermal load on ceramic plungers, reducing likelihood of cracking or pitting

Liquid CO2 Pumps

Industrial Duty Liquid Carbon Dioxide Pumps

For over 20 years, Cat Pumps has been providing liquid CO2 pumping solutions. Working closely with research facilities, universities, equipment manufacturers and site locations to develop optimal solutions has established Cat Pumps as an industry leader. The two decades of liquid CO2 system engineering and close customer relations has helped Cat Pumps develop a wide product offering for liquid CO2 applications.

Cat Pumps liquid CO2 pumps are available in brass or 316 stainless steel. Flow range of 0.5 – 48 GPM (395 – 25,225 lbs/hour), with pressure range of 400 – 5,000 PSI. All of their liquid CO2 pumps and accessories are available as part of their custom engineered systems.


TEG Pumps

Industrial Duty Triethylene Glycol Dehydration Pumps

Triethylene glycol (TEG) dehydration is the most common method of removing water from natural gas. However, TEG can be up to 240 F, which is very demanding on the components within the system. Cat Pumps’ specially-modified pumps use a proprietary seal design and have been engineered to run in the most demanding and heavily-used dehydration systems.

Cat Pumps has spent years working with engineers and maintenance professionals in the natural gas industry to develop the best solution for the TEG dehydration application. After extensive research, development, and real-world testing, Cat Pumps launched these industry-changing products in the first quarter of 2011. After more than a decade in the field, our product line has expanded to meet a variety of demands for TEG Dehydration. Pumps are readily available for 0.13 – 36 GPM and are available with brass or 316 stainless steel manifolds. In addition, a full line of pump accessories is available, and pumps can be built into a custom-engineered system. 


High-Temperature Pumps

Industrial Duty High-Temperature and Run Dry Pumps 

High-temperature liquids place extraordinary demands on system components, especially the pump. Premature pump failure can lead to production downtime, added maintenance costs, damaged final product, and increased personnel hazards. Avoid potential problems by counting on Cat Pumps' field-proven technology for your high-temperature applications.

Cat Pumps high-temperature pumps can handle liquids up to 180°F/82°C or 190°F/88°C and perform in intermittent run-dry conditions. Flow range of 0.5 to 20 GPM/1.9 to 75.7 LPM and a pressure range of 100 to 3500 PSI/6.9 to 241.5 BAR. Available in brass, nickel aluminum bronze, and stainless steel to cover various applications. 

For unmatched reliability, choose Cat Pumps high-temperature pumps. 


Nickel Aluminum Bronze Pumps

Industrial Duty Nickel Aluminum Bronze Piston and Plunger Pumps

Cat Pumps offers a complete line of nickel aluminum bronze pumps to meet industry demands. These pumps are frequently found in oilfield and reverse osmosis applications throughout the world. The superior strength and corrosion-resistance of nickel aluminum bronze, combined with Cat Pumps’ dependability, makes them an industry-leading choice. Nickel aluminum bronze pumps are stock items at Cat Pumps. A wide variety of flow and pressure ranges are available: 0.13 – 75 GPM, and 100 – 5,000 PSI. 


Direct Drive Pumps

Industrial Duty Compact Direct-Drive Pumps 

Cat Pumps’ direct-drive pumps offer a compact and cost-effective pump mounting, and are available for electric and engine drives. This option allows for easy installation with the pump mounting directly to the motor or engine.

For electric motor direct-drive pumps there are two options available: hollow shaft pumps and bell housing. The hollow shaft pumps fit 56C or 184TC face motors and will bolt directly to the unit. The bell housing mount utilizes a flex coupler between the pump and motor shafts, and the bell housing mounts the pump to the motor. Bell housing direct-drive pumps are commonly used up to 15 HP.

For engine direct-drive pumps there are two options available: hollow shaft pumps and gearbox pumps. Both options bolt directly to the engine, but the gearbox version allows the pump to run at half the speed of the engine. 


Gearbox Pumps

Industrial Duty Gearbox-Driven Pumps

Cat Pumps gearbox pumps are direct-drive high-pressure pumps that can be easily mounted on standard gas or diesel engines up to 24 horsepower. The gearbox drive has a 2 to 1 ratio allowing the pump to run at half the speed of the engine. This configuration provides a compact assembly without running the pump at high engine RPM. The gearbox is completely sealed, offering protection against rain, dust, and humidity. Cat Pumps gearbox pumps are #1 in commercial-duty pressure washers due to superior product life and ability to perform well in continuous duty use. 


ATEX Pumps

ATEX Compliant Pumps from Cat Pumps

Cat Pumps offers a complete line of pumps that meet the ATEX 2 directive for pumping applications located in potentially explosive atmospheres. Pump compliance with the ATEX directives is common in industries such as petrochemical, chemical, oil & gas, and bio-fuels.

Under the appropriate ATEX directive, equipment is designated by group, category and zone. Cat Pumps has been certified as ATEX 2 compliant, which also covers the ATEX 3 requirements. 


Chemical Pumps

Industrial Duty High Pressure Pumps for Chemical Applications 

Cat Pumps offers a wide selection of elastomers and manifold materials to meet a large variety of chemical application needs. Cat Pumps products work best with fluids with a pH level between 5 and 9 and a viscosity less than 500 cP (centipoises). Please contact our technical support team for selection assistance If you are working outside of these ranges. 


Belt Drive Pumps

Industrial Duty Belt-Driven Piston and Plunger Pumps 

Cat Pumps offers a range of belt-driven pumps from 0.13 GPM up to 240 GPM. Belt-drive is a very popular option because of the flow flexibility given within pulley ratios. Using a belt-drive isolates the pump from the heat and vibration of the motor or engine driving the pump. The belt also isolates shock from an engine or motor on start up, which can put excess wear on the crankshaft and drive end components. Belt-drive pumps give the flexibility of changing pump flow by a simple pulley change.

Belt-driven pumps are available in brass, nickel aluminum bronze and stainless steel with a wide range of flow and pressures:  0.13 – 240 GPM, and 100 – 10,000 PSI. Complete drive packages (pulleys, hubs, keys and belts) are available for all of our pumps.  


At Dunamis, we can also arrange to supply pumps and spares from other Plunger Pump manufacturers like Mouvex, Calder, Ram Pumps, Finder, Peroni, Ruhrpumpen, Lewa, Barr + Wray, ClydeUnion, Goma, Seko, Technip FMC, Milton Roy, Dynapro, Hydra-Cell, Kamat, Dynapump, Aldrich, Gardner Denver, Sabi, McFarland Tritan, SPM etc.

Contact Us

Call us on our hotline: +974-60048311 or send an email to [email protected]


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