Finish Thompson DB22 in GA for Corrosive Environments

Corrosive Environments

Born from a painstaking, extensive effort, the efficiency of the Finish Thompson DB series lowers energy consumption and operating costs over the long lifecycle of the pump. Constructed from Polypropylene or PVDF, the Finish Thompson DB22 in GA operates resiliently in the most corrosive of environments.

It can even run dry without damage. This rock-solid embodiment of technological advancement is superior in precision, performance and reliability to other pumps on the market. It features:
• Five-year warranty
• Extended run dry ability (with carbon bushing)
• High operating efficiency
• Easy set, measurement-free drive
• Polypropylene or PVDF construction
• Open or closed impeller options
• Powerful neodymium magnets
• Close-coupled design
• Threaded connections
• Vertical installation option with IEC motor
• Back pullout design
• Mounts to NEMA and IEC (B5 and B14) motor frames
• Replaceable shaft
• ISO 1940 G2.5 balancing
• CE certified/ATEX available
• Working pressure up to 90 psi(6.2 bar)
• Up to 1.8 SG
• Viscosity up to 150 cP
• Polypropylene—180o F (82o C)
• PVDF—220o F (104o C)

The Finish Thompson DB22 in GAcan be used for:
• Chemical processing,
• Plating,
• Water and wastewater,
• Electronics,
• Pharmaceuticals,
• Wet scrubber,
• Pulp and paper,
• Heat exchanger
• DB22 Capabilities

Following is more information regarding the Finish Thompson DB22 in GA.

• Maximum Working Pressure: 90psi (6.2 bar)
• Maximum Temperature: Polypropylene -180º F (82º C); PVDF – 220º F (104º C) NOTE: Maximum temperature is application dependent. Consult a chemical resistance guide or the chemical manufacturer for chemical compatibility and temperature limits.
• Solids: Maximum particle size is 100 microns for slurries and 1/64” (.4 mm) for occasional solids. Maximum hardness is 80 HS. Maximum concentration is 10% by weight. NOTE: If solids are being pumped, it is recommended that the pump have silicon carbide components for best results. Pumping solids may lead to increased wear.
• Minimum Allowable Flow Rate: Do not allow the flow rate to drop below 10 gallons per minute (2.3 m3/hr.).
• Maximum Noise Level: 80 dBA Maximum Allowable Motor Power – Do not exceed 7.5 kW (10 horsepower) for 50 Hz, 2900 rpm applications. For 60 Hz, 3450 rpm applications, the pump is capable of starting a 15-horsepower motorbut is limited to a maximum of 13 horsepower (9.7 kW) while running.

Installation Mounting of the Finish Thompson DB22 in GA
Pump foot should be securely fastened to a solid foundation. If the pump was received with plastic shipping shims, these may be used as additional support for the motor feet.
• Install the pump as close to the suction source as possible.
• Support the piping independently near the pump to eliminate any strain on the pump casing. In addition, the piping should be aligned to avoid placing stress on the pump casing.
• The suction side of the Finish Thompson DB22 in GA should be as straight and short as possible to minimize pipe friction.
• The suction line should not have any high spots. This can create air pockets that can reduce pump performance. The suction piping should be level or slope slightly upward to the pump.
• If flexible hose is preferred over pipe, use a reinforced hose rated for the proper temperature, pressure and is chemically resistant against the fluid being pumped.
• The suction valve must be completely open to avoid restricting the suction flow.
• When installing pumps with flanges, we recommend use of low-seating stress gaskets.

Motor/Electrical Installation of the Finish Thompson DB22 in GA

Install the motor according to NEC requirements and local electrical codes. The motor should have an overload protection circuit. Wire the motor for clockwise rotation when facing the fan end of the motor. Check all electrical connections with the wiring diagram on the motor. Make sure the voltage, frequency, phase and amp draw comply with the supply circuit.

To verify correct rotation of the motor:
1. Install the pump into the system.
2. Fully open the suction and discharge valves.
3. Allow fluid to flow into the pump. Do not allow the pump to run dry (ceramic, PTFE and silicon carbide bushings can’t be run dry without damage to pump components).
4. Jog the motor (allow it to run for 1-2 seconds) and observe the rotation of the motor fan. Refer to the directional arrow molded into the pump casing if necessary.

If you would like more information regarding the Finish Thompson DB22 in GA – or want to know if it’s the best option for your application – contact us today.