In air conditioning and refrigeration applications, the ability of
the thermostatic expansion valve (TEV) to match refrigerant flow to
the rate at which refrigerant can be vaporized in the...
On June 21, 2016
All refrigeration piping materials are subject to changes in
temperature and will expand and contract with temperature change.
Installation techniques must allow for expansion and contraction
On June 7, 2016
Parker's HVACR Tech tips cover service tips for the HVACR
technician servicing commercial refrigeration systems as well as
HVAC for both commercial and home. The following are
service tips for...
On May 24, 2016
Many refrigeration compressors break down simply because they
overheat. There are two main reasons why overheating can have such
a devastating effect on compressors: Loss of the lubricating
On December 17, 2015
Have you considered a CDS valve conversion for improving
performance and reducing costs on your refrigeration equipment?
Over the past ten years, Parker Sporlan has completed tens of
On September 21, 2015
Head pressure control on supermarket refrigeration systems is used
to maintain a minimum high-side-pressure to low-side-pressure
relationship. Low side pressures are the result of...
On April 7, 2015
Calculating Superheat and Subcooling requires cumbersome equipment,
writing down temperature and pressure readings, converting pressure
readings using a PT chart, and finally subtracting totals to...
On March 16, 2015
Lubricant-refrigerant mixture breakdown causes sludge formation and
other corrosive materials that will hinder the normal operation of
compressor valves and control devices in refrigerant and...
On August 1, 2014
Manufacturers of refrigerants, controls, and other suppliers
distribute hundreds of thousands of pressure-temperature charts to
the trade every year. It would be rare indeed to find a...
On July 1, 2014
Climate control is the technology of controlling fluids and gases
to vary temperature. Parker provides comfort, convenience and
control through refrigeration and air conditioning. Key
On July 1, 2013