Plumbing, Heating and Pool Repair Guides

Bell and Gossett Series 100 Booster Pumps


One of the most popular Booster Pump in the industry is the Series 100 from Bell and Gossett. There is an estimated 10 million of these pumps installed all over the worldBell and Gossett Series 100 Booster Pump The main application of these pumps is for Hydronic Heating and Domestic Hot Water Circulation. The construction of the Series 100 is made from Cast iron Or Bronze making the pump very durable on the outside, but the inside parts are made with some pretty durable materials as well.

The Seals in this pump are mechanical seals and they are made with a Carbon on Ceramic material, making the seals able to withstand a lot of debris that may get into the pump. The Impeller of the Series 100 is made from Brass or Polypropylene for both the Cast Iron and the Bronze Body Pumps. The Shaft of the pump is made from Carbon Steel and is Heat Treated for extra durability. Now we know that the Series 100 pumps are built to last, the way the pump and motor perform is just as if not more so important. The Maximum Working Pressure on the Series 100 is 125 PSI. The Maximum Operating Temperature with a standard seal installed is 225 degrees Fahrenheit and with specially made seals, the temp can work with 250 degrees Fahrenheit. The motor is a 1/12 horsepower with single phase, 115 voltage, 1725 rpm’s and F.L Amps of 1.75. The flanges are available in 3/4″, 1″, 1-1/4″ and 1-1/2″. The motors that are built with single-phase operation have a built in overload protector.
Bell Gossett Series 100 Pump
When installing a Bell and Gossett Series 100 pump, you want to make sure that there is enough room around the pump for inspections and for service tech’s to get near the pump in case of any problems. Often these pumps are not given enough space and it costs more for a tech to come in and clear a path to the pump. Save yourself some money and make the pump accessible. Perhaps one of the most important things you have to do before installing a Series 100 pump is to make sure that your measurements and your sizing is correct. Not having a secure installation can affect the way your pump and accessories will work.

The Series 100 Bell and Gossett Pump can be installed with some versatility. The pump’s discharge can be installed up, down, to the right or to the left. But, most importantly that your oiling ports are facing up at all times. The bearing assembly and the motor should be kept at a horizontal position. You should read all manuals that come with the pump before you install it or have it installed. The part about oiling the pump before you install it is very important. You have to make a schedule of when you are going to check the oil, if there is no oil then the pump will seize and you may be too late to save it. This would mean spending money on a new pump. So make sure you set out an inspection schedule for yourself to make sure you are contributing to the smooth operation of your pump system.

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