A fire-fighting pump is a centrifugal pump which is used for pumping fire-fighting water. Fire-fighting pumps can be designed for transportable use (e. g. on fire-fighting vehicles or as portable fire pumps) or for stationary use (e. g. hydrants, sprinkler systems).

Fire pumps are designed to quickly deliver sufficient water to douse a fire before it has a chance to spread. Fire pump intakes are connected to underground public water supply piping, or a tank or reservoir, to provide water flow at a higher pressure to the sprinkler system risers and hose standpipes.

A jockey pump is a small pump connected to a fire sprinkler system to maintain pressure in the sprinkler pipes. This is to ensure that if a fire-sprinkler is activated, there will be a pressure drop, which will be sensed by the fire pumps automatic controller, which will cause the fire pump to start.

Types of fire pumps include: horizontal split case, vertical split case, vertical in-line, vertical turbine, and end suction. These fire pumps may be powered by an electric motor or diesel engine and on rare occasion powered by a steam turbine.

There are typically three types of hydraulic pump constructions found in mobile hydraulic applications. These include gear, piston, and vane; however, there are also clutch pumps, dump pumps, and pumps for refuse vehicles such as dry valve pumps and Muncie Power Products’ Live PakTM.

Pumps are divided into 2 major categories: Dynamic and Positive Displacement (aka Displacement).

Where different pump designs could be used, the centrifugal pump is generally the most economical followed by rotary and reciprocating pumps. Although, positive displacement pumps are generally more efficient than centrifugal pumps, the benefit of higher efficiency tends to be offset by increased maintenance costs.

7 ways to improve the energy efficiency of your pump

1. Avoid oversizing the pump.
2. Impeller trimming.
3. Variable frequency drives.
4. Parallel pumping systems.
5. Limit pipework pressure loss.
6. Eliminate unnecessary use.
7. Carry out maintenance.

They worked continuously, excitedly and feverishly for 36 hours. It was a result of their continuous pumping that they reached the last few centimetres of water on January 4.

Like other machines, a sump pump work efficiency depends on its age. With time a pump’s workability will be decreasing. We have to accept the truth. Nowadays, the pump manufacturing company can produce a high-quality pump that can run continuously for almost 20 to 24 hours.

Your well pump should not run constantly. In fact, if you have this problem, you will quickly see your electric bill going up. If you’re noticing that it is, or if you’re having problems with it cycling on and off repeatedly, it may be a sign of a problem.

Can Submersible Pumps Run Continuously? Yes, you can run a submersible pump continuously for as long as you require if you have the suitable source of water. Running the majority of submersible pumps dry can cause significant damage to the inner motor and components.

Even 1/2 HP pumps are recommended to have at least a 1 minute run time. Actually it stated as 300 cycles per day. And since there are 1440 minutes in a day, that would be a cycle every 4.8 minutes max. If the pump only needs to pump 8 gallons then it don’t take long.

The most likely cause of a pump not shutting off is the pressure switch. It is a small box attached to the water line with electrical wires running to it from your water pump. It’s used to turn the pump on when the pressure gets low ( around 40 PSI) and turn it off when it gets high ( around 60 PSI).

Well pumps use a huge amount of energy every time they start up. It is not uncommon for people to have 3/4 hp pumps installed in their wells equaling 30 minutes of pumping per day or 350 kWh/yr, while a ½ hp pump, which uses only 240 kWh/yr, would be sufficient.