A drainage valve comprising a through hole, a seat around the through hole, a shutter comprising an end face and movable in a longitudinal direction between a first position in which the end face of the shutter is away from the seat and a second position in which the end face of the shutter is pressed against the seat and blocks the through hole, and an elastic element configured to keep the shutter in the first position. The shutter has a recess, emerging at its end face, configured to introduce therein a part of a tool in order to temporarily secure the part of the tool and the shutter in order to displace it in two directions longitudinally.

A drainage valve comprising a through hole, a seat around the through hole, a shutter comprising an end face and movable in a longitudinal direction between a first position in which the end face of the shutter is away from the seat and a second position in which the end face of the shutter is pressed against the seat and blocks the through hole, and an elastic element configured to keep the shutter in the first position. The shutter has a recess, emerging at its end face, configured to introduce therein a part of a tool in order to temporarily secure the part of the tool and the shutter in order to displace it in two directions longitudinally.

A filling head for an operating liquid tank, in particular of a motor vehicle, comprising a filling tube with an inlet end, which lies farther away from the tank, and an outlet end, which lies nearer to the tank, the filling tube for conducting operating liquid in a filling direction from the inlet end to the outlet end, a venting arrangement with an inflow end, which lies nearer to the tank and an outflow end which lies farther away from the tank, which end is provided for passing of gas in a counter-flow direction with respect to liquid flowing in the filling direction, in a venting direction extending from the inlet to the outflow end, the venting arrangement is provided, at least in the area of its outflow end, separate from the filling tube, the venting arrangement has a valve with a gas valve body, which is movable between a closed position, in which a gas flow in a valve passage is prevented, and a passage position, in which the gas may flow in the valve passage past the gas valve body, the valve having a liquid valve body, which is movable between a blocking position, in which a liquid flow in the valve passage is blocked, and an open position, in which the valve passage past the liquid valve body is open.

A vent for a machinery enclosure such as an automotive axle comprises a vent body having passageway between the interior of the enclosure and the exterior of the enclosure and an ePTFE membrane covering the passageway. The membrane and a fibrous sorbent are disposed within the passageway between the interior of the enclosure and the membrane.

A vent for a machinery enclosure such as an automotive axle comprises a vent body having passageway between the interior of the enclosure and the exterior of the enclosure and an ePTFE membrane covering the passageway. The membrane and a fibrous sorbent are disposed within the passageway between the interior of the enclosure and the membrane.

The application discloses a pneumatic valve control device, which comprises an air cylinder provided with a first piston and an air outlet and a hydraulic cylinder provided with a second piston and an air vent; a partition is arranged between the hydraulic cylinder and the air cylinder, and a partition channel is arranged on the partition; the second piston is connected with a piston rod capable of passing through the partition channel; the piston rod is connected with a tappet valve for opening and closing the partition channel, and the tappet valve is capable of withdrawing from the partition channel with an upward movement of the piston rod and jacking up the first piston; and the air cylinder further comprises a locking and releasing mechanism capable of locking and releasing the first piston that is jacked up; and herein, when the locking and releasing mechanism is unlocked and the first piston is in a descending, falling back state, the partition channel is in a closed state, and the air outlet is in an outward exhaust state. The pneumatic valve control device disclosed by the application is more labor-saving and convenient to operate, and improves a performance of products.

The application discloses a pneumatic valve control device, which comprises an air cylinder provided with a first piston and an air outlet and a hydraulic cylinder provided with a second piston and an air vent; a partition is arranged between the hydraulic cylinder and the air cylinder, and a partition channel is arranged on the partition; the second piston is connected with a piston rod capable of passing through the partition channel; the piston rod is connected with a tappet valve for opening and closing the partition channel, and the tappet valve is capable of withdrawing from the partition channel with an upward movement of the piston rod and jacking up the first piston; and the air cylinder further comprises a locking and releasing mechanism capable of locking and releasing the first piston that is jacked up; and herein, when the locking and releasing mechanism is unlocked and the first piston is in a descending, falling back state, the partition channel is in a closed state, and the air outlet is in an outward exhaust state. The pneumatic valve control device disclosed by the application is more labor-saving and convenient to operate, and improves a performance of products.

There is provided a valve device, including: a housing; a float valve; and a seal member. An opening portion includes a first region, and a second region. The seal member includes a first cover portion, and a second cover portion. The second cover portion includes a support portion, a wide portion, and a narrow portion. In a state where the seal member is retained and supported by the support portion with respect to the float valve, a width of the wide portion is set such that a tip end of the second region is covered, and that the second region of the opening portion is not exposed out of the seal member even in a state where the seal member is maximally displaced in a radial direction and/or a peripheral direction of the housing with respect to the opening portion.

A tank fill adapter device for a portable fluid tank provides a connection between an inlet collar of a tank and a supply pipe for filling the tank with a fluid that introduces an air gap into the connection. An annular mounting flange mounts against the inlet collar using a fastened connection. A pipe supporting portion protrudes upwardly from the annular mounting flange for supporting an open end of the supply pipe spaced above the inlet collar. An outer annular baffle protrudes downwardly from the annular mounting flange for being received into the tank through the inlet collar and an inner annular baffle is supported within the outer annular baffle to define a generally annular space between the outer and inner annular baffles which remains in open communication at a bottom end thereof with an interior of the tank.

A tank fill adapter device for a portable fluid tank provides a connection between an inlet collar of a tank and a supply pipe for filling the tank with a fluid that introduces an air gap into the connection. An annular mounting flange mounts against the inlet collar using a fastened connection. A pipe supporting portion protrudes upwardly from the annular mounting flange for supporting an open end of the supply pipe spaced above the inlet collar. An outer annular baffle protrudes downwardly from the annular mounting flange for being received into the tank through the inlet collar and an inner annular baffle is supported within the outer annular baffle to define a generally annular space between the outer and inner annular baffles which remains in open communication at a bottom end thereof with an interior of the tank.