Cat Pump 1050 Plunger Pump — 15 Frame Belt-Drive Triplex Pump
The Cat Pump 1050 is a 15 Frame triplex plunger pump built for operations that need steady, high-pressure flow hour after hour. It moves up to 10 GPM at pressures reaching 2200 PSI while turning at 958 RPM, and its three-plunger design keeps pulsation low so downstream nozzles, membranes, and fittings see a smooth, predictable stream instead of hammering. The wet end pairs a chrome-plated brass manifold with solid ceramic plungers and 304 stainless steel valve assemblies, a combination that handles the abrasive, mineral-heavy water most cleaning and process systems actually run on.
Because the 1050 is a bare-shaft, belt-driven pump with a 30 mm solid shaft and pulley mounting available on either side, it drops into a wide range of skids, carts, and stationary frames without forcing you to redesign around it. The oil-bath crankcase, heat-treated valves and seats, and the high-pressure seal design are what give this frame its long service reputation, and the wet end can be serviced without ever opening the crankcase, which turns a routine seal or valve change into a short job rather than a full teardown.
Operators put the 1050 to work across a lot of different environments. It runs vehicle and truck wash bays, powers industrial and plant cleaning rigs, feeds reverse osmosis and water treatment systems, drives misting and dust suppression lines, and handles agricultural spraying and general high-pressure transfer. With a maximum liquid temperature of 160°F on standard NBR seals, a 5 to 9 pH range, and a 50 micron particle rating, it fits comfortably into both wash-down and process duty. Note that the pump ships bare shaft and does not include crankcase oil, mounting rails, or a shaft protector.
Key Features
- Triplex positive displacement design for smooth, low-pulsation flow
- Chrome-plated brass manifold resists corrosion in wash-down and treated-water service
- Solid ceramic plungers for long wear life in abrasive water
- 304 stainless steel valve assemblies with heat-treated valves and seats
- Oil-bath crankcase for cooler running and extended bearing life
- Wet end serviceable without opening the crankcase
- Pulley mounting available on either side for flexible drive layout
- Bare-shaft belt-drive configuration adapts to gas or electric power
- Standard NBR seals with FPM, EPDM, IPFE, and STHT options for temperature and chemical compatibility
Applications
- Pressure washing and hot water cleaning systems
- Car wash, truck wash, and fleet wash bays
- Industrial and plant equipment wash-down
- Reverse osmosis and water treatment feed service
- Misting, humidification, and dust suppression
- Agricultural and horticultural spraying
- Food processing and sanitation cleaning lines
- General high-pressure water transfer and hydrostatic duty
Specifications
- Model: 1050
- Frame: 15 Frame
- Pump Type: Triplex positive displacement plunger pump
- Volume: 10 GPM (37.9 LPM); 12.3 GPM (46.6 LPM) alternate spec
- Discharge Pressure: 100 – 2200 PSI; 100 – 1800 PSI alternate spec
- Inlet Pressure: -5 to 60 PSI
- RPM: 958; 1180 alternate spec
- Maximum Horsepower: 15 HP
- Inlet Port Size: (2) 3/4" NPT(F)
- Discharge Port Size: (2) 1/2" NPT(F)
- Shaft Diameter: 30 mm (1.181")
- Bore: 24 mm (0.945")
- Stroke: 30 mm (1.181")
- Crankcase Capacity: 42 oz. (1.26 L)
- Drive Type: Belt or clutch drive, bare shaft
- Pulley Mounting: Either side
- Maximum Liquid Temperature: 160°F (71°C) with NBR seals
- pH Range: 5 – 9
- Particle Rating: 50 micron
- Manifold: Chrome-plated brass
- Plungers: Solid ceramic
- Valves: 304 stainless steel
- Seals/O-Rings: NBR (Buna-N) standard
- Dimensions: 16.28" x 12.99" x 6.45" (414 x 330 x 164 mm)
Frequently Asked Questions
Q: Does the Cat Pump 1050 come with crankcase oil, mounting rails, or a shaft protector?
A: No. The 1050 is supplied as a bare-shaft pump, so crankcase oil, mounting rails, and the shaft protector are ordered separately. Fill the crankcase with the correct oil before the first start.
Q: Can the Cat Pump 1050 run dry, even briefly?
A: No. Running the pump dry damages the seals and plungers very quickly. The inlet must be fully primed and supplied with adequate flow at all times.
Q: What drive speed should I size the pulleys for?
A: The standard rating is 958 RPM, with an alternate spec at 1180 RPM. Size the drive pulleys so the pump stays at or below its rated speed for the flow and pressure you need.
Q: Does this pump include an unloader or regulator?
A: No. A properly sized pressure regulating unloader and a safety relief valve are required in the discharge line to protect the pump and the system from over-pressure.
Q: Can the 1050 handle hot water or chemical solutions?
A: With standard NBR seals it is rated to 160°F and a pH range of 5 to 9. Higher temperature and chemically aggressive service require alternate seal materials such as FPM, EPDM, IPFE, or STHT.
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