Pump and Fluid Know-how Ideas

Armstrong is the world chief in “Fluid Know-how”, relating to hydronic techniques they’re second to none.  Take a look at the primary fifteen of thirty ideas put collectively by the nice folks at Armstrong and take a look at armstrongfluidtechnology.com for more information.  

Tip #1

In case you are altering out a mechanical seal, make sure to test the make-up of the system fluid. For glycol mixtures larger than 30% focus by quantity, Silicon Carbide is advisable for each seal faces. 

Tip #2

If pump seal failures happen frequently, take into account putting in a filter, with movement indicator within the seal flush line(s).  The filter will entice sediment which may be inflicting the seal failures.  Be certain that operators test the movement indicator frequently and alter the filter when seal movement decreases.  Pumps with differential pressures above 30psig [Between inlet and outlet pressure gauges], might use a sediment separator, which is not going to require monitoring.     

Tip #3

For an older Armstrong S&H circulator, you don’t essentially have to exchange it with new. You may service it successfully utilizing the Armstrong Seal Bearing Meeting. The Armstrong SBA common seal bearing meeting accommodates an interchangeable module that features a pump shaft, sleeve bearing, copper sleeve and donut wicking system.  With as few as 5 kinds of seal bearing assemblies greater than 100 totally different Armstrong and B&G pump fashions might be transformed to this module program throughout routine upkeep. As soon as the conversion is made, future upkeep will usually require substitute of the module solely.  

Tip #4

Do you know an Armstrong vertical inline pump might be absolutely supported by the piping with no base, inertia pad, springs or rubber isolators or pump stands. In case you are putting in an Armstrong vertical inline pump it can save you the labor and value of putting in helps. 

Tip #5

Horizontal pumps with versatile couplings ought to have their pump and motor shafts realigned on website previous to start-up in case they turn into misaligned throughout cargo. Nevertheless, Vertical and horizontal break up coupled pumps with inflexible aluminum couplings don’t want realignment on website. 

Tip #6

In case you see horizontal circulators with helps underneath the motor, make sure to point out it as an issue. Propping up the motor from under or suspending the motor from above will trigger misalignment and bearing or seal failure. 

Tip #7

In case you want a business pump to ship roughly movement  the controls for Design Envelope pumps might be accessed and adjusted on the spot. Armstrong Design Envelope pump controls show the precise system movement & head proper on the pump. The latest Era 5 pumps might be managed by way of Wi-Fi connection utilizing your sensible cellphone or pill. That is tremendous handy for conditions the place the pump is put in up excessive or in an inconvenient spot.

Tip #8

In case you get in a scenario the place you want extra movement and there’s no room for an additional pump and piping, take into account dual-head pumps, the place 2-pump rotating assemblies slot in a casing design to function in a single pipe.  The pump heads could also be operated alone or collectively for double movement or, with built-in controls, which is able to function every unit, bringing the second unit on-line to optimize the unit effectivity for decrease energy prices.    

Tip #9

DO NOT take away tools nameplates. This may occasionally have felt mandatory prior to now, although cell telephones can now do a greater job for the capturing the info and capable of switch the picture to service personnel to verify the pump ID and / or spare components    

Tip #10

IF you can not discover the tools nameplate, make sure to test the volute because the pump data could also be stamped on the volute.    

Tip #11

Bladder enlargement tanks and AX collection diaphragm tanks might be mounted horizontally with saddles underneath the weld seams. If the system connection is off-center, the tank needs to be rotated to have the system connection above the centerline. 

Tip #12

Air cost on a bladder or diaphragm tank needs to be set to 2-5 psi above the chilly fill system stress. This air cost needs to be utilized previous to connecting the tank to the system.

Tip #13

Elevated seismic exercise throughout North America require seismic clips on the bottom ring on some vertically mounted enlargement tanks. 

Tip #14

To make sure that a plate and body warmth exchanger operates correctly, test that the system connections are for countercurrent movement. Which means two inlet connections needs to be on reverse corners to one another. The outlet will all the time be above or under the inlet, by no means beside. 

Tip #15

When beginning a brand new system, make sure to shut down after 24 hours to open the suction information and take away the effective mesh start-up strainer from the metal basket strainer. Continued operation with the mesh filter will finally starve the pump of suction stress, inflicting cavitation and seal injury. 

Take a look at the hyperlink to my YouTube channel for extra ideas, tips, and troubleshooting movies and take a look at the The HVAC Know It All podcast right here or in your favorite podcast app.  Comfortable HVACing.

As all the time…Comfortable HVACing!