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Liquiflo FTS Transfer Pump User Manual
Series Nos. FTS150 and FTS200
Motor Connections
Bypass Valve
Pump
Standard assembly includes pump with internal bypass valve, shaft coupling flange, gear reducer and motor
mounted on a baseplate
Pump
All systems include either a 1.5" FTS150 or 2.0" FTS200 pump head with a bypass valve and shaft coupling flange.
Gear Reducer
A gear reducer is a mechanical transmission device that connects a motor to a driven load. It is also known as a
gearbox. It allows you to modify the torque and speed between a motor and a load. Find your target flow rate and the
appropriate gear reducer ratio will be selected in the following tables.
Motor
Motors used on FTS skids are 4-pole motors which run at 1750 rpm. A gear reducer is required to adjust the flow
rate by slowing down the pump speed. The horsepower required to operate the pump is based on a combination of
the flow rate and bypass pressure selected. For a given flow rate, the power requirement will increase if a higher
bypass pressure is selected. Doubling the discharge pressure or flow rate will double the required power.
If the system operates at 115 Volts using a common 15 Amp outlet, the largest practical motor size is limited to
1.5HP. The standard selection of gear reducers and bypass valve combinations will limit the maximum amperage
draw on the 1.5 HP to roughly 12 Amps, which will limit the chance of tripping the circuit breaker.
Circuit breakers in factories are commonly 20 Amps for 115 Volt outlets. In this situation, a 2HP single phase motor
can be used to achieve higher pressures or flow rates.
Baseplate
Also known as a "Hat Channel", this is where the motor and pump system are mounted.
Gear Reducer
Pump Shaft
Coupling Flange
7
Motor Connections
Motor
Baseplate (Hat Channel)
28
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