Valves & Pumps

Wetheads unite! New technologies and application stories.

ARTICLES

Blue Diamond Pumps Inc.: Condensate Removal Pump

The complete BlueDiamond® range uses an identical, reliable, patented pumping principle called rotary diaphragm. 


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Emerson Climate Technologies Inc.: Electronic Expansion Valve

The EX3 is a stepper-motor-driven electronic expansion valve (EXV) that provides precise mass flow control and high energy efficiency for supermarket showcases and cold rooms with multiple parallel evaporators.


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Bonomi North America Inc.: Brass Check Valves

The Bonomi 100712LF Series sweat-end lead-free brass check valves feature a spring-loaded soft seat at both high and low pressures.


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Grundfos Pumps Corp.: Pumping System

Ideally suited for new commercial HVACR applications and retrofits, the fully integrated, intelligent LFE pumping system features the MLE variable-speed motor in 3-30 horsepower (hp) in 3,600 rpm and 3-25 hp in 1,800 rpm. 


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Maxitrol Co.: Pressure Regulator

The new 325-9L certified line pressure regulator for two psi systems has a capacity of 2.25 MBtuh. 


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Readers Select DDA’s Best of the Best

Emerson, Western Enterprises, Mypointnow Products Stand Above the Rest

The NEWS asked you to vote for your favorite DDA gold winner in the first-ever 2014 DDA Reader’s Choice Poll. Here are the results. 


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BelGAS, a division of the Marsh Bellofram Corp.: Stainless Steel Gas Regulator

The Type 52SS is designed for effective service within a wide variety of sour gas, high-corrosion, and other severe environments. The specialty construction of the BelGAS Type 52SS features a 316 stainless steel housing and filter assemblies with fluorocarbon elastomers used for the control diaphragm and supply valve.


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Grundfos Pumps Corp.: Booster Pump System

The Hydro Multi-B, an all-variable-speed-controlled pump system, utilizes two to three Grundfos CME pumps and is designed to provide the greatest range of solutions for engineered packaged pumping systems. 


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RectorSeal Corp.: Mini-split Condensate Pumps

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

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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Multimedia

Videos

Image Galleries

2014 World Energy Engineering Congress

Scenes from the 2014 World Energy Engineering Congress in Washington, D.C.

Podcasts

NEWSMakers: Andy Heinze

Andy Heinze, distribution channel development manager, Sporlan Division of Parker Hannifin, discusses Sporlan's new refrigeration system training center. Posted Dec. 11.

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ACHRNEWS

NEWS 12-15-14 cover

2014 December 15

Check out the weekly edition of The NEWS today!

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HVAC TECHNICIAN SHORTAGE

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HVACR INDUSTRY STORE

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2015 National Plumbing & HVAC Estimator

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

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