Valves & Pumps

Wetheads unite! New technologies and application stories.

ARTICLES

RectorSeal Corp.: Mini-split Condensate Pumps

July 14, 2014

The Plug-and-Play feature for Aspen’s Mini Aqua® and Silent+ Mini Aqua® are slim condensate pumps for mini-split air conditioners. 


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The Professor: Oil Pumps and Net Oil Pressure

Understanding the Differences is Key for Successful Servicing
June 30, 2014

Often, compressors in the refrigeration and air conditioning fields have forced oiling systems. Here is a look at some of those oil pumps.


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Grundfos Pumps Corp.: End-Suction/Split Coupled Pumps

June 30, 2014

The LFE frame-mounted end-suction pump and VLSE vertical in-line split coupled pump are ideally suited for new commercial HVACR applications and retrofits.


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AquaMotion Inc.: Hydronic Pumps

June 23, 2014

The AM10 3-speed hydronic pumps were designed to extend the range of the company’s AquaMotion pump offerings. 


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Taco Inc.: Mixing Valves

June 23, 2014

The valves are available in lead-free alloys with tamper-resistant caps, and sweat, Nation Pipe Thread (NPT), Pex, or chlorinated polyvinyl chloride (CPVC) union connections.  


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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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Multimedia

Videos

Image Galleries

Mini Split Installation

Twin Cities contractor Aabott Ferraro helped retrofit an older St. Paul home.

Podcasts

NEWSMakers: Doug Dougherty

Doug Dougherty, president and CEO of the Geothermal Exchange Organization (GEO) joins the program to discuss the latest happenings with GEO, including the drive to get included in state and federal definitions of renewable energy, plus the future of geothermal.  Posted on July 25.

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ACHRNEWS

NEWS 07-28-14 cover

2014 July 28

Check out the weekly edition of The NEWS today!

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R-22 PHASEOUT POLL

Some in the industry are calling for the EPA to halt production of R-22 as of 2015. What do you think?
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HVACR INDUSTRY STORE

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2014 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

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