ST31, ST41, ST51, SM50, SL50 Series Optional Features
Variable Frequency Controller
Canned Sealless pumps are available with a variable
frequency drive and pressure transducer in a completely assembled and
tested unit. This arrangement allows the system to maintain a constant
preset discharge pressure via closed loop control over pump motor speed
and also eliminates costly and often troublesome pressure relief valves
and their associated plumbing problems.
This package is particularly helpful to OEM manufacturers
whose equipment is exported to countries utilizing 50 Hertz electrical
supply systems. Variable frequency controllers are also available for
customer applications where flow, temperature, or other variables need
to be maintained.
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