General
1 model in this family. Representative models: General Cataloque CAT pumps.
International brand dossier
CAT Pumps
Cat Pumps is a high-pressure positive-displacement pump manufacturer with more than 50 years of triplex pump experience.In water treatment and cleaning systems it is relevant where long-life high-pressure plunger pumps, seal design, chemical compatibility, and dependable continuous duty matter.
CAT Pumps's position in pumps and pumping equipment is defined by product families such as Plunger Pumps and Piston Pumps.The portfolio is best understood inside raw water intake, RO/NF feed, transfer, boosting, chemical dosing, wastewater lift, and desalination hydraulics, where engineers compare the technology route, family boundaries, and duty fit before narrowing to individual models.
Representative series on this page include CAT pumps, 3CP1221-3CP1231-3CP1241 and 5CP6221-5CP6241CS-5CP6251.Selection should focus on flow, head, efficiency, NPSH margin, wetted materials, seals, and drive arrangement.These cues help users understand the brand's strongest fit before moving into the model index and product cards for finer comparison.
29
Indexed models
3
Product families
0
Subgroups
Product range and selection
How to choose CAT Pumps & Pumping
This section answers two questions: which main product families CAT offers, and which parameters to compare before choosing a specific model.
Step 1: Choose a product family by application
The main families shown on this page are General, Plunger Pumps, and Piston Pumps. Start with the treatment objective, equipment format, and operating duty, then use the model index below to compare exact specifications.
Step 2: Confirm the model by key parameters
After choosing a product family, compare flow and head, materials, efficiency, and duty cycle. Replacement projects should also verify installation or loading conditions, interfaces, and compatibility with the existing system; new projects should consider operating practice, maintenance, and spare-parts or consumables availability.
Product family overview
3 product familys on this page.
Plunger Pumps
23 models in this family. Representative models: 2SF05SEEL-2SF10SEEL-2SF15SEEL-2SF22SEEL-2SF25SEEL-2SF29SEEL-2SF35SEEL-2SF42SEEL, 3CP1221-3CP1231-3CP1241, 5CP6221-5CP6241CS-5CP6251.
Piston Pumps
5 models in this family. Representative models: 280, 333, 621.
Quick Model Index
Fast lookup for 29 indexed products
The table is intentionally compact: use it to scan model names, product families, and source links quickly. Open the profile cards below when you want richer context.
General
1 indexed model
Plunger Pumps
23 indexed models
| Model | Application | Sources |
|---|---|---|
| 2SF05SEEL-2SF10SEEL-2SF15SEEL-2SF22SEEL-2SF25SEEL-2SF29SEEL-2SF35SEEL-2SF42SEEL | These are stainless steel direct-drive plunger pumps engineered for high duty cycles in SWRO applications. | |
| 3CP1221-3CP1231-3CP1241 | This is a CAT Pumps 3CP Series triplex plunger pump designed for high-pressure applications. It features a 316 stainless steel construction. | |
| 5CP6221-5CP6241CS-5CP6251 | These CAT Pumps 5CP Stainless Steel Plunger Pumps feature a triplex plunger design and are constructed with 316 stainless steel valves, seats, and manifold. | |
| 7CP6111-7CP6111C-7CP6171-7CP6171C-7CP6111G1 | This CAT Pumps 7CP series is a stainless steel plunger pump designed for continuous duty applications. | |
| 231-241-271-237-247-277 | These are vertical-axis, in-line multi-stage centrifugal pumps designed for water boosting in domestic or industrial installations. | |
| 311-341-351-311C-317-347-357 | CAT Pumps 5 Frame Triplex Plunger Pumps are designed for high-pressure applications with their durable construction and wet seal design. | |
| 781-781K | This 8-frame block-style stainless steel plunger pump is available in standard (781) or flushed (781K) models for high-pressure applications. | |
| 1050-1051-1051C-1051D-1057 | These CAT Pumps 15 Frame plunger pumps are available in standard, stainless steel, stainless steel flushed, duplex stainless steel. | |
| 1530-1531 | The CAT Pumps 15 Frame Plunger Pump series includes models 1530 with a brass manifold and 1531 with a stainless steel manifold. | |
| 1540E-1540EC-1541 | The CAT Pumps 1540E-1540EC-1541 are triplex plunger pumps designed for high-efficiency operation and low pulsation. Available in standard brass (1540E). | |
| 1861-1861K | The CAT Pumps 18 Frame is a block-style stainless steel triplex plunger pump available in standard (1861) and flushed (1861K) models. Key features include dual V-Packings. | |
| 2510-2511 | The CAT Pumps 2510 and 2511 are triplex plunger pumps designed for high-efficiency fluid handling. Model 2510 features a brass manifold. | |
| 2530-2530E-2531-2537 | These are CAT Pumps 25 Frame Triplex Plunger Pumps available with brass, stainless steel, or nickel aluminum bronze manifolds. They offer up to 25 GPM and 1200 PSI. | |
| 2831-2831K | The CAT Pumps 2831 and 2831K are block-style stainless steel plunger pumps designed for various fluid transfer applications. | |
| 3535-3535C-3531-3531C-3537 | These CAT Pumps 35 Frame triplex plunger pumps are available in models with brass, stainless steel, or nickel aluminum bronze wetted ends. | |
| 3545-3541-3541C-3537C | These CAT Pumps 35 Series Triplex Plunger Pumps offer superior design and quality materials for smooth liquid flow and extended seal life. | |
| 3801-3811-3801K-3811K | These are CAT Pumps 38 Frame block-style stainless steel plunger pumps, available in standard and flushed K models. | |
| 3821-3831-3832K-3831K | These CAT Pumps 38 Frame stainless steel plunger pumps are designed for high-pressure applications up to 2000 PSI. Available in standard and K models. | |
| 6760-6761-6762-6767-6767C | These CAT Pumps are 60 Frame Triplex Plunger Pumps available in multiple material configurations, including brass, stainless steel, and nickel aluminum bronze. | |
| 6775-6771-6777 | This is a CAT Pumps 60 Frame Triplex Plunger Pump series, designed for high efficiency and low pulsation. Available in Brass, Stainless Steel, or Nickel Aluminum Bronze. | |
| 6801-6811-6801K-6811K | These CAT Pumps 68 Frame block-style stainless steel plunger pumps, available in standard and flushed models, are designed for high-pressure applications. | |
| 6831-6831K | The CAT Pumps 6831 and 6831K are stainless steel triplex plunger pumps designed for high efficiency with ceramic plungers and 316 SS manifolds. | |
| 6841-6861-6841K-6861K | This is a CAT Pumps 68 Frame triplex plunger pump constructed with 316 stainless steel wetted parts for strength and corrosion resistance. |
Piston Pumps
5 indexed models
| Model | Application | Sources |
|---|---|---|
| 280 | CAT Pumps offers triplex reciprocating high-pressure pumps with various manifold materials like brass, nickel aluminum bronze, and stainless steels. | |
| 333 | The 333 is a standard brass 4-frame triplex piston pump designed for smooth, low-pulsation flow with strong suction. It features hard chrome-plated 304S cylinders. | |
| 621 | The CAT Pumps 621 is a stainless steel 10 Frame Triplex Piston Pump designed for general use. It features a durable, die-cast aluminum crankcase, a chrome-moly crankshaft. | |
| 1520 | This is a 25 Frame Triplex Piston Pump designed for smooth operation with a lubricated crankcase and mechanically actuated inlet valves. | |
| 6020 | This CAT Pumps 6020 is a 60 frame triplex uniflow piston pump designed for high-pressure applications. |
Brand Technical Documents
29 readable document pages
These document pages collect product manuals, model notes, accessory documents, and application files for this brand in the current category. Open the PDF when original tables, diagrams, or full manuals are needed.
1050-1051-1051C-1051D-1057
These CAT Pumps 15 Frame plunger pumps are available in standard, stainless steel, stainless steel flushed, duplex stainless steel.
1520
This is a 25 Frame Triplex Piston Pump designed for smooth operation with a lubricated crankcase and mechanically actuated inlet valves.
1530-1531
The CAT Pumps 15 Frame Plunger Pump series includes models 1530 with a brass manifold and 1531 with a stainless steel manifold.
1540E-1540EC-1541
The CAT Pumps 1540E-1540EC-1541 are triplex plunger pumps designed for high-efficiency operation and low pulsation. Available in standard brass (1540E).
1861-1861K
The CAT Pumps 18 Frame is a block-style stainless steel triplex plunger pump available in standard (1861) and flushed (1861K) models. Key features include dual V-Packings.
231-241-271-237-247-277
These are vertical-axis, in-line multi-stage centrifugal pumps designed for water boosting in domestic or industrial installations.
2510-2511
The CAT Pumps 2510 and 2511 are triplex plunger pumps designed for high-efficiency fluid handling. Model 2510 features a brass manifold.
2530-2530E-2531-2537
These are CAT Pumps 25 Frame Triplex Plunger Pumps available with brass, stainless steel, or nickel aluminum bronze manifolds. They offer up to 25 GPM and 1200 PSI.
280
CAT Pumps offers triplex reciprocating high-pressure pumps with various manifold materials like brass, nickel aluminum bronze, and stainless steels.
2831-2831K
The CAT Pumps 2831 and 2831K are block-style stainless steel plunger pumps designed for various fluid transfer applications.
2SF05SEEL-2SF10SEEL-2SF15SEEL-2SF22SEEL-2SF25SEEL-2SF29SEEL-2SF35SEEL-2SF42SEEL
These are stainless steel direct-drive plunger pumps engineered for high duty cycles in SWRO applications.
311-341-351-311C-317-347-357
CAT Pumps 5 Frame Triplex Plunger Pumps are designed for high-pressure applications with their durable construction and wet seal design.
333
The 333 is a standard brass 4-frame triplex piston pump designed for smooth, low-pulsation flow with strong suction. It features hard chrome-plated 304S cylinders.
3535-3535C-3531-3531C-3537
These CAT Pumps 35 Frame triplex plunger pumps are available in models with brass, stainless steel, or nickel aluminum bronze wetted ends.
3545-3541-3541C-3537C
These CAT Pumps 35 Series Triplex Plunger Pumps offer superior design and quality materials for smooth liquid flow and extended seal life.
3801-3811-3801K-3811K
These are CAT Pumps 38 Frame block-style stainless steel plunger pumps, available in standard and flushed K models.
3821-3831-3832K-3831K
These CAT Pumps 38 Frame stainless steel plunger pumps are designed for high-pressure applications up to 2000 PSI. Available in standard and K models.
3CP1221-3CP1231-3CP1241
This is a CAT Pumps 3CP Series triplex plunger pump designed for high-pressure applications. It features a 316 stainless steel construction.
5CP6221-5CP6241CS-5CP6251
These CAT Pumps 5CP Stainless Steel Plunger Pumps feature a triplex plunger design and are constructed with 316 stainless steel valves, seats, and manifold.
6020
This CAT Pumps 6020 is a 60 frame triplex uniflow piston pump designed for high-pressure applications.
621
The CAT Pumps 621 is a stainless steel 10 Frame Triplex Piston Pump designed for general use. It features a durable, die-cast aluminum crankcase, a chrome-moly crankshaft.
6760-6761-6762-6767-6767C
These CAT Pumps are 60 Frame Triplex Plunger Pumps available in multiple material configurations, including brass, stainless steel, and nickel aluminum bronze.
6775-6771-6777
This is a CAT Pumps 60 Frame Triplex Plunger Pump series, designed for high efficiency and low pulsation. Available in Brass, Stainless Steel, or Nickel Aluminum Bronze.
6801-6811-6801K-6811K
These CAT Pumps 68 Frame block-style stainless steel plunger pumps, available in standard and flushed models, are designed for high-pressure applications.
6831-6831K
The CAT Pumps 6831 and 6831K are stainless steel triplex plunger pumps designed for high efficiency with ceramic plungers and 316 SS manifolds.
6841-6861-6841K-6861K
This is a CAT Pumps 68 Frame triplex plunger pump constructed with 316 stainless steel wetted parts for strength and corrosion resistance.
781-781K
This 8-frame block-style stainless steel plunger pump is available in standard (781) or flushed (781K) models for high-pressure applications.
7CP6111-7CP6111C-7CP6171-7CP6171C-7CP6111G1
This CAT Pumps 7CP series is a stainless steel plunger pump designed for continuous duty applications.
General Cataloque CAT pumps
CAT Pumps offers triplex reciprocating and centrifugal pumps for diverse industrial applications. Available materials include brass, stainless steel.
AI-ready Product Profiles
Product cards for screening and future AI matching
These cards are designed as reusable product profiles: the same format can later appear in AI search results, shortlist views, and assisted product matching.
General
1 profile card
Pumps & Pumping
Product profile
General Cataloque CAT pumps
CAT Pumps offers triplex reciprocating and centrifugal pumps for diverse industrial applications. Available materials include brass, stainless steel.
Plunger Pumps
23 profile cards
Pumps & Pumping
Product profile
2SF05SEEL-2SF10SEEL-2SF15SEEL-2SF22SEEL-2SF25SEEL-2SF29SEEL-2SF35SEEL-2SF42SEEL
These are stainless steel direct-drive plunger pumps engineered for high duty cycles in SWRO applications.
Pumps & Pumping
Product profile
3CP1221-3CP1231-3CP1241
This is a CAT Pumps 3CP Series triplex plunger pump designed for high-pressure applications. It features a 316 stainless steel construction.
Pumps & Pumping
Product profile
5CP6221-5CP6241CS-5CP6251
These CAT Pumps 5CP Stainless Steel Plunger Pumps feature a triplex plunger design and are constructed with 316 stainless steel valves, seats, and manifold.
Pumps & Pumping
Product profile
7CP6111-7CP6111C-7CP6171-7CP6171C-7CP6111G1
This CAT Pumps 7CP series is a stainless steel plunger pump designed for continuous duty applications.
Pumps & Pumping
Product profile
231-241-271-237-247-277
These are vertical-axis, in-line multi-stage centrifugal pumps designed for water boosting in domestic or industrial installations.
Pumps & Pumping
Product profile
311-341-351-311C-317-347-357
CAT Pumps 5 Frame Triplex Plunger Pumps are designed for high-pressure applications with their durable construction and wet seal design.
Show remaining Plunger Pumps profiles (17)
Pumps & Pumping
Product profile
781-781K
This 8-frame block-style stainless steel plunger pump is available in standard (781) or flushed (781K) models for high-pressure applications.
Pumps & Pumping
Product profile
1050-1051-1051C-1051D-1057
These CAT Pumps 15 Frame plunger pumps are available in standard, stainless steel, stainless steel flushed, duplex stainless steel.
Pumps & Pumping
Product profile
1530-1531
The CAT Pumps 15 Frame Plunger Pump series includes models 1530 with a brass manifold and 1531 with a stainless steel manifold.
Pumps & Pumping
Product profile
1540E-1540EC-1541
The CAT Pumps 1540E-1540EC-1541 are triplex plunger pumps designed for high-efficiency operation and low pulsation. Available in standard brass (1540E).
Pumps & Pumping
Product profile
1861-1861K
The CAT Pumps 18 Frame is a block-style stainless steel triplex plunger pump available in standard (1861) and flushed (1861K) models. Key features include dual V-Packings.
Pumps & Pumping
Product profile
2510-2511
The CAT Pumps 2510 and 2511 are triplex plunger pumps designed for high-efficiency fluid handling. Model 2510 features a brass manifold.
Pumps & Pumping
Product profile
2530-2530E-2531-2537
These are CAT Pumps 25 Frame Triplex Plunger Pumps available with brass, stainless steel, or nickel aluminum bronze manifolds. They offer up to 25 GPM and 1200 PSI.
Pumps & Pumping
Product profile
2831-2831K
The CAT Pumps 2831 and 2831K are block-style stainless steel plunger pumps designed for various fluid transfer applications.
Pumps & Pumping
Product profile
3535-3535C-3531-3531C-3537
These CAT Pumps 35 Frame triplex plunger pumps are available in models with brass, stainless steel, or nickel aluminum bronze wetted ends.
Pumps & Pumping
Product profile
3545-3541-3541C-3537C
These CAT Pumps 35 Series Triplex Plunger Pumps offer superior design and quality materials for smooth liquid flow and extended seal life.
Pumps & Pumping
Product profile
3801-3811-3801K-3811K
These are CAT Pumps 38 Frame block-style stainless steel plunger pumps, available in standard and flushed K models.
Pumps & Pumping
Product profile
3821-3831-3832K-3831K
These CAT Pumps 38 Frame stainless steel plunger pumps are designed for high-pressure applications up to 2000 PSI. Available in standard and K models.
Pumps & Pumping
Product profile
6760-6761-6762-6767-6767C
These CAT Pumps are 60 Frame Triplex Plunger Pumps available in multiple material configurations, including brass, stainless steel, and nickel aluminum bronze.
Pumps & Pumping
Product profile
6775-6771-6777
This is a CAT Pumps 60 Frame Triplex Plunger Pump series, designed for high efficiency and low pulsation. Available in Brass, Stainless Steel, or Nickel Aluminum Bronze.
Pumps & Pumping
Product profile
6801-6811-6801K-6811K
These CAT Pumps 68 Frame block-style stainless steel plunger pumps, available in standard and flushed models, are designed for high-pressure applications.
Pumps & Pumping
Product profile
6831-6831K
The CAT Pumps 6831 and 6831K are stainless steel triplex plunger pumps designed for high efficiency with ceramic plungers and 316 SS manifolds.
Pumps & Pumping
Product profile
6841-6861-6841K-6861K
This is a CAT Pumps 68 Frame triplex plunger pump constructed with 316 stainless steel wetted parts for strength and corrosion resistance.
Piston Pumps
5 profile cards
Pumps & Pumping
Product profile
280
CAT Pumps offers triplex reciprocating high-pressure pumps with various manifold materials like brass, nickel aluminum bronze, and stainless steels.
Pumps & Pumping
Product profile
333
The 333 is a standard brass 4-frame triplex piston pump designed for smooth, low-pulsation flow with strong suction. It features hard chrome-plated 304S cylinders.
Pumps & Pumping
Product profile
621
The CAT Pumps 621 is a stainless steel 10 Frame Triplex Piston Pump designed for general use. It features a durable, die-cast aluminum crankcase, a chrome-moly crankshaft.
Pumps & Pumping
Product profile
1520
This is a 25 Frame Triplex Piston Pump designed for smooth operation with a lubricated crankcase and mechanically actuated inlet valves.
Pumps & Pumping
Product profile
6020
This CAT Pumps 6020 is a 60 frame triplex uniflow piston pump designed for high-pressure applications.