Valves & Pumps

Quality Flow Controls LLC: Brass and Copper Isolation Valve

April 7, 2014

Installation of the 2-Port Isolation Valve (2PIV) provides quick and easy refrigerant leak detection in evaporators, condenser coils, and refrigerant line sets. 


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RectorSeal Corp.: Mini-Split Condensate Pump Software

March 10, 2014

For engineers, distributors, and installers, FastFind™ Pump Selector is an interactive Web-based ductless mini-split condensate-pump selection tool. 


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2014 AHR Expo: HVAC Components + Accessories

February 17, 2014

The NEWS was very busy at the AHR Expo in New York City, visiting as many booths as possible in search of new products. Here is a comprehensive list of all the components and accessories we found on the show floor.


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Ice Breaker: Evap. Pressure Regulators

A Look at Familiar Refrigerant Flow Control Device
February 3, 2014

Joe Marchese explains the refrigerant flow control device, which prevents the refrigerant pressure in an evaporator from operating below a minimum value, and discusses how to select the right one for the job. 


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Palmer Wahl Instrumentation Group: Hand Calibration Pressure Pumps

January 27, 2014

A new line of hydraulic and pneumatic hand-calibration pressure pumps includes the PV10K hydraulic calibration pressure pump and PV600 combination pneumatic pressure and vacuum calibration pump. 


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Taco Inc.: Commercial Variable-Speed Pump

December 16, 2013

The Taco SelfSensing Series with ProBalance™ integrates KV or KS pumps with a variable frequency drive. 


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The Professor: TXV Dos and Don’ts

The Externally Equalized Thermostatic Expansion Valve
December 2, 2013

The thermostatic expansion valve (TXV or TEV) is a metering device located between the liquid line and the evaporator. 


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NEWS Hosts Danfoss Webinar on Electronic Expansion Valves

Free Webinar Will Take Place on Nov. 21
November 11, 2013

The webinar will help field-service technicians gain a better understanding of the function and operation of, as well as key troubleshooting strategies for, stepper motor and pulse-width-modulating electronic expansion valves.


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Armstrong Fluid Technology: High-Efficiency Wet-Rotor Circulator

November 11, 2013

The new COMPASS circulator helps contractors and wholesalers with easy selection, fast installation, and extremely broad performance capabilities for application to a wide variety of installations, the company said. 


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Ice Breaker: Relief Valves 101

Safety Device Helps Protect Equipment, Workers
November 4, 2013

Relief valves are used to release abnormally high pressure inside a vessel before that pressure causes the vessel to erupt. 


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