Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F16Engineering elements F16KVALVES TAPS COCKS ACTUATING-FLOATS DEVICES FOR VENTING OR AERATING

F16K5/00Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary

F16K5/02with plugs having conical surfaces Packings therefor F16K5/0207with special plug arrangement F16K5/0214Plug channel at 90 degrees to the inlet F16K5/0221Fixed plug and turning sleeve F16K5/0228with a conical segment mounted around a supply pipe F16K5/0235with the angle the spindle makes housing being other than 90 degrees F16K5/0242Spindles and actuating means F16K5/025Particular coverings or materials F16K5/0257Packings F16K5/0264in the housing F16K5/0271between housing and plug F16K5/0278on the plug F16K5/0285spindle sealing F16K5/0292Easy mounting or dismounting means F16K5/04with plugs having cylindrical surfaces Packings therefor F16K5/0407with particular plug arrangements F16K5/0414Plug channel at 90 degrees to the inlet F16K5/0421Fixed plug and turning sleeve F16K5/0428with a cylindrical segment mounted around a supply pipe F16K5/0435the angle the spindle makes with the housing being other than 90 degrees F16K5/0442Spindles and actuating means F16K5/045Particular coverings and materials F16K5/0457Packings F16K5/0464in the housing F16K5/0471between housing and plug F16K5/0478on the plug F16K5/0485Spindle sealing F16K5/0492Easy mounting or dismounting means F16K5/06with plugs having spherical surfaces Packings therefor F16K5/0605with particular plug arrangements F16K5/061knee-joint F16K5/0615the angle the spindle makes with the housing being other than 90 degrees F16K5/0621with a spherical segment mounted around a supply pipe F16K5/0626Easy mounting or dismounting means F16K5/0631between two flanges F16K5/0636the spherical plug being insertable from the top of the housing F16K5/0642the spherical plug being insertable from one and only one side of the housing F16K5/0647Spindles or actuating means F16K5/0652for remote operation F16K5/0657Particular coverings or materials F16K5/0663Packings F16K5/0668Single packings F16K5/0673Composite packings F16K5/0678in which only one of the components of the composite packing is contacting the plug F16K5/0684on the plug F16K5/0689between housing and plug F16K5/0694Spindle sealings F16K5/08Details F16K5/10Means for additional adjustment of the rate of flow F16K5/103specially adapted for gas valves F16K5/106with pilot flame F16K5/12Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve F16K5/14Special arrangements for separating the sealing faces or for pressing them together F16K5/16for plugs with conical surfaces F16K5/161with the housing or parts of the housing mechanically pressing the seal against the plug F16K5/162with the plugs or parts of the plugs mechanically pressing the seal against the housing F16K5/163adjustable in height F16K5/165Means pressing on the small diameter F16K5/166Means pressing on the large diameter F16K5/167Means pressing radially F16K5/168Sealing effected by the flowing medium F16K5/18for plugs with cylindrical surfaces F16K5/181with the housing or parts of the housing mechanically pressing the seals against the plugs F16K5/182by means of conical surfaces F16K5/184with the plugs or parts of the plugs mechanically pressing the seals against the housing F16K5/185by means of conical surfaces F16K5/187with rolling action F16K5/188Sealing effected by the flowing medium F16K5/20for plugs with spherical surfaces F16K5/201with the housing or parts of the housing mechanically pressing the seal against the plug F16K5/202with conical surfaces F16K5/204with the plugs or parts of the plugs mechanically pressing the seals against the housing F16K5/205Sealing effected by the flowing medium F16K5/207using bellows F16K5/208with tongue-shaped means F16K5/22Features relating to lubrication F16K5/222for plugs with conical surfaces F16K5/225for plugs with cylindrical surfaces F16K5/227for plugs with spherical surfaces