Finish Thompson DB5VTM613 DB5 Magnetic Drive Close coupled pump
Finish Thompson builds the DB5VTM613 as a DB5 sealless magnetic drive close coupled pump 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.
Removing the seal removes the usual failure mode. On a conventional pump the seal is what weeps, what needs flushing and what puts the pump back on the bench, and none of that applies here. The wetted parts are carbon fiber reinforced PVDF with a PTFE bushing and a ceramic shaft, and the elastomers are Viton FKM. The unit is set up for a NEMA 56C motor frame. Maximum working pressure for this size is 60 psi, with the housing material setting the temperature ceiling at 220 degrees F.
Key Features
- Sealless magnetic drive with no shaft seal and no leak path
- Carbon fiber reinforced PVDF wetted construction
- PTFE 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: DB5VTM613
- Series: DB5
- Type: Sealless magnetic drive centrifugal close coupled pump
- Wetted Material: Carbon fiber reinforced PVDF
- Bushing: PTFE
- Shaft: Ceramic
- Elastomers: Viton FKM
- Maximum Working Pressure: 60 psi
- Maximum Temperature: 220 degrees F
- Motor Frame: 56C
- Motor: 1/4 HP, 115 V
- Maximum Viscosity: 50 cP
- Condition: New
Frequently Asked Questions
Q: Does the pump self prime?
The DB models are designed for flooded suction, so the supply should be at or above the pump rather than below it.
Q: How is the pump serviced?
It is a back pull out design, so the wet end comes apart without disturbing the piping or unbolting the motor.
Q: What decides the maximum temperature?
The housing material and the fluid together, with polypropylene rated to 180 degrees F and PVDF to 220 degrees F, lowered by whatever is being pumped.
Q: Why choose PVDF over polypropylene?
PVDF handles oxidizers, bleach, strong acids and higher temperatures that polypropylene cannot, at a higher cost.
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.
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