• Piston Pumps
  • Diaphragm Pumps
  • How to avoid cavitation?

    Can you identify and avoid cavitation? Cavitation is the formation andcollapse of gaseous cavities in a liquid which causes severe wear or eroding ofthe metal wear surfaces in the pump.

    The most obvious sign of cavitation is a hammering noise. The noise can beeither consistent or intermittent depending upon the degree of cavitation anddamage to the pump. Vibration of the pump and system will also be noticeable asthe pump is starved of fluid. Eventually flow and pressure will decrease.

    Check your system for these conditions which may contribute to, or directlycause, cavitation:

    1.      Inadequate inlet line size

    2.     Insufficient inlet flow or excessive suction

    3.      Excessive inlet line length

    4.      Rigid inlet plumbing

    5.     Too many elbows and/or fittings

    6.     Excessive temperature build-up or pumped fluid

    7.      Air leak in inlet plumbing

    8.      Agitation in supply reservoir

    9.     Inadequate increase of inlet flow for fluids ofgreater specific gravity

    10.  Inadequateincrease of inlet flow for higher temperature fluids

    11.  Clogged inlet filters.

    It isimportant to carefully check your system during assembly and operation to avoidthe serious damage that can be caused by cavitation

  • How the gun works?

    Guns are fairly simple mechanisms designed around a trigger-operated valve.Generally a ball valve is used in trigger guns but piston valve may be used ina dump gun.

    In one of the most common configurations for a trigger gun, the valve ballis held in a closed or forward position by the flow of water and blocks theflow of water through the gun to the nozzle.

    When the trigger is depressed it pushes a pin against the ball, forcing theball out of its seating and opening a path for water to flow to the nozzle.When the trigger is released again a spring returns the ball to its seating andthe flow is again blocked.

    Flow blockage actuates the unloader on the outlet or high side of the pumpand water is diverted back to the pump's inlet or low side, reducing pressureat the gun.

  • How an AR pump works?

    What a pump actually does is move a column of water to create a flow. Pressure results from a restriction on than column of water as is the case when the water passes through a nozzle. When we speak of a pump's ability to create a certain pressure at a certain flow, what we really mean is that the pump is capable of moving that amount of water per minute through a nozzle or restriction which actually creates the specified pressure.

    In order to create a flow of water, most pumps used in the pressure cleaning industry rely on a system of valves and cylinders. The movement of a plunger or piston in the cylinder draws water through the inlet valve and the upstroke expels it through the outlet valve. The valves basically direct the water through the pump by preventing backflow.

    The simplest valve design consist of a spring and poppet and is hydraulically operated by differences in pressure on either side of the valve. When pressure against the valve exceeds the ability of the spring to hold the poppet closed, the valve opens. On the opposite stroke, water itself presses the poppet against its seat, holding the valve closed and preventing flow of the water in the wrong direction.

    The flow of water through the pump can be controlled in three ways, by increasing or decreasing the bore of the cylinder, by lengthening or shortening the stroke of the piston or plunger or by increasing or decreasing the speed at which the pump operates.