How do we increase pressure from an overhead tank greater than gravity?

Question

When water is pumped into an overhead tank, how can the pressure in the release pipe be increased? What kind of pump do we use other than the pump that pumps into the overhead tank?

Answer 1

Ensure that the net positive suction head is sufficient and if so put a pump in the tank discharge line. The kind of pump (eg centrifugal or reciprocating) will depend on the desired flow and discharge head. Make sure the design downstream of any components is suitable for the max possible pressure and increased flowrate.

Answer 2

If this were my problem, I would install a simple in-line centrifugal pump in the outlet designed to produce the necessary increase in pressure that I needed.

If there were not sufficient net positive suction head (NPSH) then I probably use a canned turbine pump, but I suspect that since you are pumping water the NPSH is probably quite high.

Most water tanks are not designed to be pressurized but assuming you could pressurize the tank with air, you could get a limited increase in outlet pressure but that could put a greater pressure on the discharge of the fill pump and reduce its capacity.

Answer 3

You could use a Heinman pump to increase the specific gravity within the overhead tank.

Hope this helps.

Answer 4

Like a few of the others I would say place the tank higher, but also using outlet pipes with a smaller diameter would increase the pressure.

Answer 5

This is probably not the answer you want since it will require significant changes to the structure you are working with. The pressure from the tank output line is directly proportional to the height of the tank, so to increase the pressure of the output line, raise the tank.

Answer 6

No the water tank works electronically. also, there are 2 varieties of water tanks, one has an air cushion, the different has an air bladder like a balloon. in case your stress is low and also you spot surging or a consistent clicking sound coming from the field connected to the tank, you've gotten a lack of air cushion in many circumstances observed as "water logged" or a ruptured bladder in aspect your tank. If the bladder is ruptured, your tank desires replacing. If water logged, you want to pump air into the tank approx 5-7 Ibs to create an air cushion. If there is not any signal of surging or consistent clicking, water tank is fantastic; you've gotten a 20/40 psi stress swap wherein case you could develop the stress (no longer above 60 Ibs) on and stale by utilizing twisting the small nut connected to the stress swap. many times it really is a grey field with 4 wires linked to it. maximum circumstances you could stick with instructions positioned in aspect of the stress swap field to develop the stress. in case you attempt to do this, be very certain your capacity grant to the nicely pump is close off, as that's 220 volts and would kill you. something else you could opt to attempt is taking your bathe head aside, you've gotten sediment outfitted up or there would nicely be a water constrained in there which will nicely be bumped off.

Answer 7

Most ships use P.W.S. as tankage is usually below level of demand. Sealed tank with airspace and pressure [air] operated switch to electrically driven pump.

Answer 8

method 1
increase height of tank
method2
compress the water in the tank if you don't have room to increase the height but compressing water would require proper sealing (so not practical) idea 1 is the only solution

Answer 9

Too expensive


put new tank 10 feet higher

Answer 10

compressed air. increase volume of water