Finish Thompson KC11VCVN355C KC11 Magnetic Drive Close coupled pump
This is the Finish Thompson KC11 close coupled pump, supplied in carbon fiber reinforced PVDF. It is supplied close coupled to its motor and ready to pipe in. There is no mechanical shaft seal anywhere in the design: the motor turns an outer magnet, and the field couples through a solid containment barrier to the magnet inside the impeller, so the only way out for the pumped fluid is the discharge port.
That construction is why these pumps end up on the duties nobody wants to nurse. A seal is the part that fails on a conventional chemical pump, and removing it removes the leak, the flush plan and the seal inventory along with it. The wetted parts are carbon fiber reinforced PVDF with a carbon bushing and a ceramic shaft, and the elastomers are Viton FKM. The unit is built for a NEMA 56C motor frame. Maximum working pressure for this size is 45 psi, with the housing material setting the temperature ceiling at 220 degrees F. This build carries the higher torque magnet coupling specified for heavier specific gravity fluids.
Key Features
- Sealless magnetic drive with no shaft seal and no leak path
- Carbon fiber reinforced PVDF wetted construction
- Carbon bushing on a ceramic shaft
- Neodymium magnets for full torque in a compact coupling
- Back pull out design so the wet end is serviced without disturbing the piping
Applications
- Acid, caustic and solvent transfer where a leak cannot be tolerated
- Plating, etching, anodizing and metal finishing lines
- Water treatment, scrubber and filtration recirculation
- Laboratory, photo processing and chemical blending systems
- Replacing a sealed pump that keeps failing at the shaft seal
Specifications
- Brand: Finish Thompson
- Model: KC11VCVN355C
- Series: KC11
- Type: Sealless magnetic drive centrifugal close coupled pump
- Wetted Material: Carbon fiber reinforced PVDF
- Bushing: Carbon
- Shaft: Ceramic
- Elastomers: Viton FKM
- Maximum Working Pressure: 45 psi
- Maximum Temperature: 220 degrees F
- Motor Frame: 56C
- Impeller Diameter: 3.50 inch
- Connections: NPT threaded
- Condition: New
Frequently Asked Questions
Q: Is a suction strainer worth fitting?
On a magnetic drive pump, yes. The running clearances are small and a single piece of debris can take out the bushing.
Q: How is the pump taken apart for service?
The wet end separates from the motor adapter without disturbing the piping, so bushings and O-rings can be renewed in place.
Q: What causes most premature wet end wear?
Dry running, abrasive solids, and operating well to the left of the curve where recirculation heats the fluid inside the pump.
Q: Does a higher specific gravity fluid need a different pump?
It needs more torque, which is why the heavier duty builds use a stronger magnet coupling rather than a bigger motor alone.
Not sure this is the right part? Send us a Picture of the pump plate on your pump and the CLR Marine team will confirm the correct pump before you order.
CLRMarine
