Price Pump RC300BF-E 3 x 3 Bronze Fitted Pump End with 4.62 in Impeller for 143TC/184C Motors
The Price Pump RC300BF-E is the bronze fitted pump end from the RC300 close coupled horizontal centrifugal series, built around a 4.62 in semi-open Francis vane impeller and matched to NEMA C-face motor frames from 143TC through 184C. Because it ships as a pump end rather than a complete pump-and-motor package, it lets you rebuild an existing unit, swap a worn wet end, or pair the hydraulic assembly with a motor you already have on the shelf, without changing the piping or the footprint you have already committed to.
Bronze fitted construction pairs a cast iron volute with a bronze impeller, which is a practical middle ground for a wide range of duties. It handles ordinary water service and mildly corrosive liquids better than an all iron build, and it does so at a far lower cost than a full bronze or stainless assembly. The 316 stainless steel stub shaft and standard mechanical seal round out a wet end that stands up to continuous circulation duty. With 3 in FNPT suction and discharge, the RC300 hydraulics move meaningful volume, up to roughly 400 GPM against about 75 feet of head, with a temperature ceiling near 300°F depending on the seal and elastomer selected.
Where this pump end tends to earn its keep is in plant utility and process work: cooling tower circulation, machine tool and coolant loops, filter and washer systems, chemical transfer, aquaculture and hatchery circulation, and general water transfer. The close coupled arrangement removes the coupling, base plate, and alignment work that a frame mounted pump requires, so installation is short and maintenance is straightforward. When the seal or impeller eventually wears, the wet end comes apart without pulling the motor off the system.
Key Features
- Bronze fitted construction: cast iron volute paired with a bronze impeller for broader liquid compatibility than all iron
- 4.62 in semi-open Francis vane impeller, the maximum diameter offered in the RC300 hydraulic family
- Close coupled design eliminates coupling alignment, base plate, and separate bearing frame
- Machined to accept NEMA C-face motors in the 143TC, 145TC, 182C, and 184C frame range
- 316 stainless steel hex stub shaft resists corrosion at the seal and impeller interface
- Standard 5/8 in Type 6A Buna mechanical seal with carbon versus ceramic faces
- Optional seal configurations available, including Type 21 fluorocarbon, Type 9 PTFE, and double seal arrangements
- Serviceable wet end allows seal and impeller replacement without removing the motor from the system
- Supplied as a pump end only, so an existing or customer-supplied motor can be used
Applications
- Cooling tower and condenser water circulation
- Machine tool coolant and cutting fluid circulation
- Parts washers and circulating wash systems
- Filtration and filter press feed loops
- General industrial water transfer and booster service
- Chemical transfer of compatible mildly corrosive liquids
- Aquaculture, hatchery, and live holding tank circulation
- Plating, rinse tank, and process tank recirculation
- OEM skid and packaged equipment builds
- Agricultural and irrigation transfer duty
Specifications
Model: RC300BF-E
Series: RC300 close coupled horizontal centrifugal
Configuration: Pump end only, less motor
Suction port size: 3 in FNPT
Discharge port size: 3 in FNPT
Port arrangement: 3 x 3
Impeller diameter: 4.62 in
Impeller type: Semi-open Francis vane
Impeller material: Bronze
Volute material: Cast iron
Material designation: BF, bronze fitted
Shaft: 5/8 in 316 stainless steel hex stub shaft, 7/8 in available
Motor frame compatibility: NEMA C-face 143TC, 145TC, 182C, 184C
Mechanical seal: 5/8 in Type 6A Buna, carbon versus ceramic
Maximum flow: Up to approximately 400 GPM
Maximum head: Approximately 75 feet
Maximum temperature: Up to 300°F (149°C), seal and elastomer dependent
Maximum solids size: Approximately 0.38 in (10 mm)
Mounting: Horizontal close coupled
Pump energy index (PEI): 0.97
Frequently Asked Questions
Q: Does the RC300BF-E include a motor?
A: No. The E designation identifies this as a pump end supplied less motor. You provide a NEMA C-face motor in the 143TC through 184C frame range, or reuse the motor already installed on your existing unit.
Q: Can I install this pump end on a motor that currently runs an all iron RC300?
A: Yes, provided the motor is within the 143TC to 184C C-face range and the shaft bore matches. The mounting interface is common across RC300 material configurations, so a bronze fitted wet end can replace an all iron wet end on the same motor.
Q: What liquids is bronze fitted construction not suitable for?
A: Bronze is a poor choice for strong acids, ammonia and ammonium compounds, chlorinated brines at elevated concentration, and liquids with meaningful sulfide content. For those services the all iron, 316 stainless fitted, or full 316 stainless versions of the RC300 are the appropriate builds.
Q: How do I know whether I need a 5/8 in or 7/8 in stub shaft?
A: The shaft is selected by motor frame. Smaller C-face motors typically use the standard 5/8 in hex shaft, while the larger 143TC through 184C frames commonly use the optional 7/8 in shaft. Confirm the shaft diameter on the motor nameplate or measure the shaft extension before ordering.
Q: Can the impeller be trimmed to hit a specific duty point?
A: Yes. The 4.62 in impeller is the full diameter for the RC300, and smaller trims are offered across the range so the pump can be matched to a required flow and head rather than oversized. Trimming down also reduces the horsepower the motor has to deliver.
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