Finish Thompson Pumps

Finish Thompson pumps are used for chemical transfer, circulation, and container unloading. Applications include chemical processing, water treatment, metal finishing, and industrial manufacturing where corrosion resistance is an important selection factor.

Finish Thompson offers sealless magnetic-drive pumps, mechanically sealed centrifugal pumps, drum and barrel pumps, and vertical pumps. Air-operated double-diaphragm products are also available through its FTI Air product line.

A sealless magnetic-drive pump uses magnets to drive the impeller without a conventional rotating shaft seal. This design reduces reliance on mechanical seals for fluid containment in chemical-transfer and circulation service.

A mechanically sealed pump uses a seal around the rotating shaft to contain liquid. A magnetic-drive pump uses a containment barrier and magnetic coupling. Selection depends on fluid properties, operating conditions, and maintenance requirements.

Selected models are suitable for compatible acids and caustics. Verify the chemical name, concentration, temperature, and wetted materials before selection, because no single pump construction is appropriate for every chemical.

Yes. Finish Thompson offers pumps for transferring liquids from drums and other containers. Selection should consider container depth, liquid compatibility, viscosity, desired transfer rate, and the available power source.

Yes. The SP Series includes self-priming magnetic-drive pumps. Self-priming capability does not eliminate installation requirements; follow the model's instructions for initial filling, suction piping, and allowable suction lift.

Finish Thompson's ANSI sealless products include magnetic-drive pumps with ETFE-lined ductile iron construction. For a replacement project, confirm the selected model's dimensions, materials, and performance against the existing installation.

Determine the required flow and total dynamic head, then evaluate the pump curve for the actual liquid. Include suction conditions, specific gravity, viscosity, temperature, and expected changes in system demand.

Finish Thompson offers specialty drum-pump options for higher-viscosity liquids. Provide viscosity at the pumping temperature and the required transfer rate so the pump tube and drive can be selected appropriately.

Solids-handling capability depends on the product and its internal clearances. Identify particle size, concentration, hardness, and abrasiveness before selection; a clean-liquid centrifugal pump should not automatically be used for slurry service.

Dry-running limits depend on the model and component configuration. Confirm the manufacturer's instructions for the exact pump, and consider level monitoring or other protection when an empty container could interrupt liquid supply.

Inspect connections, monitor flow and operating noise, and check applicable wear components. Cleaning and replacement intervals depend on the liquid, duty cycle, and pump design; follow the model-specific maintenance manual.

Reduced flow may result from restricted piping, an obstructed strainer, trapped air, incorrect rotation, worn parts, or increased system resistance. Check the installation and operating conditions before assuming the pump is undersized.

A suitable replacement may be available, but performance, material compatibility, connection dimensions, mounting, and motor requirements must be compared. Share the existing nameplate and operating conditions when requesting a replacement selection.

Contact Industrial Air Services at (615) 641-3100. Include the liquid, concentration, temperature, flow, pressure, and installation details. For drum-pump applications, also provide the container dimensions and available power source.