Parker Hannifin Corporation, the global leader in motion and control technologies, recently showcased the new Sporlan Secondary Fluid Control package (SFV) for use in secondary glycol refrigeration systems at the AHR Expo 2013, held in Dallas.
The valve and controller combination allows users to set their desired case temperature, and walk away with confidence. Laboratory and field installations have demonstrated case temperature stability within 0.5 degree of setpoint and reductions in compressor cycling by up to 60 percent.
By pairing a fully modulating stepper motor valve with advanced adaptive algorithms, the SFV package achieves consistent flat line control without the headaches associated with system commissioning. Matching glycol mass flow to the unique requirements of each case results in an overall reduction in glycol pump speed and energy consumption.
“Typically, case temperature is maintained using on-off solenoid control and mechanical balancing valves,” said Tom Bourquin, Product Manager at Parker Sporlan. “When this modulating solution is installed, temperature control is immediately achieved without commissioning or callbacks.”
The valve and controller combination can also improve shelf life of product due to a reduction in thermal shock, which can occur as a result of major temperature fluctuations. Energy savings from the glycol pump and improved chiller stability are additional benefits for customers.