Our pneu­ma­tic val­ves can be used for remo­te con­trol in all pres­su­re ran­ges. The ope­ra­ting princip­le is simi­lar to that of the manu­al val­ve, but the requi­red for­ce is gene­ra­ted by a pneu­ma­tic pis­ton ins­tead of a thread. In our designs we take into account the set­ting for­ce of the need­le to ensu­re that the need­le is cor­rect­ly clo­sed to the seat.

Three types of pneu­ma­tic val­ves can be used:

    Pneu­ma­ti­cal­ly actua­ted on both sides (our recom­men­da­ti­on) (NB)

    Ope­ning with spring for­ce (NO)

    Clo­sing with spring for­ce (NC)

The requi­red size of the pneu­ma­tic actua­tor depends on the fol­lowing criteria:

    Inlet or out­let val­ve. The nomi­nal size of the val­ve seat is pres­su­re loaded.

    High-pres­su­re shut-off val­ve. The spind­le is pres­su­re loaded.