Q:I'm looking for a high pressure water pump ,preferably submersible, between 80-100 psi.

go you five and six show room only prospects of high pressure of toll pump or submersible menu check if you like buy no like no buy

Q:can you replace a water pump gasket without replacing the whole water pump?

Yes. Just make sure that the pump it-self is not leaking out of a small hole (aka weep hole) or the shaft that drives the pump. and romove the old gasket completly. clean very well. both pump and motor.

Q:it's not doing anything. about a month ago, i changed the pressure switch because it the water just suddenly stopped (like now), and after changing it, it worked again. I did noticed that after changing the pressure switch, it was tripping a lot (the pressure switch). when the water pump stopped again (this time), i went a bought another pressure switch thinking that it was the same problem, but this time it didn't solve the problem. Came to find out later, that the pressure switch that i had changed about a month ago, it was wired incorrectly - maybe that's why it was tripping a lot? so i did wired this one correctly, but still didn't work. Did i burned the pump? another note here is that it has been less than a year that i changed the water pump. My question is, what could the problem be this time? did i burned the pump because i wired the pressure switch incorrectly? any suggestion, please email me thanks!

Easiest way to tell is to bypass the pressure switch and connect the pump motor wire directly to incoming power and manually run the pump until you reach shut off pressure... use your circuit breaker to do this.. My guess is that when you wired it the wrong the first time you forced the pump to shut off by way of an overload protector on the motor and either the protector is bad now or the motor is

Q:i heard a water pump should not be able to move.is that correct? It is a 1995 RM250. there is no clogging in the pipes coming from the radiators with 2 fingers require force to move them but with the 1 finger it requires no force to move a couple Centimeters.

The water pump is turned by the primary gear on the crankshaft. When you were turning the water pump - the crankshaft was moving the piston up down in the cylinder. The couple of centimeters of movement is just the play between the gears - that's normal.

Q:How do I know the pump pressure?

That is, the rated pressure minus the pipe loss, and then less inlet pressure (generally suction pump inlet pressure is negligible), that is the working pressure.The head of a centrifugal pump is also called the pressure head of a pump. It is the energy gained by the pump of the unit weight and the fluid. Pump head size depends on the structure of the pump (such as the diameter of the impeller, the bending of the leaves and so on, speed. At present, the pressure head of the pump can not be calculated accurately in theory, usually measured by experimental method.

Q:89 Dodge van overheats, no water leak, replaced thermostat but still overheats.

You probably need a new radiator, they become restricted and do not allow enough water to pass through to efficiently cool the engine.

Q:Pump performance parameters have three sets of data, how to understand the flow, lift, flow speed

Mainly expressed the ability of the pump, mainly as a basis for selecting the pump users.Lift represents the performance of the pump to boost water pressure. Such as the pump head H=38 meters, that the pump outlet pressure normal to 0.38MPa.The flow rate represents the water supply capacity of the pump. Such as 100 m3/h. The general flow pump design, and the corresponding flow, little significance.

Q:Give me a general intro. about submersible water pumps.

This usually refers to the pump and electric motor, where the motor is sealed so that they can be submersed. The problem with many types of pump is that they are not self priming so the easy solution is to put it under the water. There are pumps where the motor is connected by a long shaft so that it remains out of the water while the pump is submersed but I'm not sure this is really classified as a submersed pump.

Q:A Pump is direct driven by a 25 HP 900 rpm electric motor at rated load. In order to to double the quanitity of water delivered, it would be necessary to substitute a motor rated at____HP at____rpm. ans. 200 and 1800. not sure how they came up with this answer...whats the equation???

N = (95 H.C)/D Where N = rev/min D = diameter of impeller over blade tips in metres H = total head in metres C = constant. C depends on the shape of the pump and normally lies between 1.05 and 1.2 Later edit. I'm not sure if you are aware of it but each impeller has it's own characteristic performance curve.

Q:replaced water pump and thermostat, flushed, opened bleeder valve had long life red colored original coolant, no visible leaks obstruction, when became hot on highway, accelerated quickly and temp back down to norm, eventually after 3hrs driving o.heated stopped and got towed home, new water pumps fins/pulley not turning as freely as old one, no leak out of inspection hole, hoses good shape.2001 2.2l ohv sunfire, air cond.

Check the bearings on the pulley / pack some grease in there. Hope some help !