A mounting aid device for mounting a valve slide in a housing bore of a valve housing of a slide valve includes a mounting slide arranged movably in a guide of a guide piece and protruding out of the guide of the guide piece on both sides. The guide piece includes a first stop, with which the guide piece is placeable coaxially to the housing bore when the guide piece contacts the valve housing at the first stop. The mounting slide configured to protrude into the housing bore until contact on the second end region of the valve slide and, by force-loading of the mounting slide under compression of the spring element, the valve slide is movable until the valve slide reaches the first end position.

A control valve (10) includes a valve body with a plurality of ports (A, B, C, D, E, F) and a plurality of annular flow passages (53, 55, 57). A piston (34) which includes a plurality of annular flow passages and a longitudinal flow passage is selectively movable within a bore (32) within the valve body through operation of a valve controller (70). The valve controller is selectively operative to control the position of the piston so as to enable liquid flow through a plurality of flow paths. The valve controller further includes a installable and removable valve controller housing (74) which is releasably engageable with a valve base (72). The valve may include a changeable piston and changeable injector and plug components to adapt the valve to different flow and fluid mixing requirements.

An electrically controlled valve for a shock absorber. The valve comprises a piston providing a primary fluid channel for damping fluid and a housing in which a piston holder is provided with an internal secondary fluid channel for damping fluid. Fluid flow (23) through the secondary fluid channel for damping fluid. Fluid flow through the secondary fluid channel is controlled by a spool movable within the piston holder wherein the movement of the spool is enabled by an electrically controlled actuator. Fluid flow through the secondary fluid channel is controlled by restriction at the inlet of the secondary fluid channel the inlet comprising one or more radial holes through the piston holder.

A hydraulic oil control valve includes a sleeve, a spool and a spring. The spool is received at an inside of the sleeve and is configured to be reciprocated. The spring is configured to be seated against a spring seat of the sleeve and is configured to apply a preload to the spool. The sleeve has a stepped portion, which has a spool contact surface for limiting movement of the spool toward the spring seat, and a protrusion, which is located at a center of the spring seat and protrudes toward an opening of the sleeve. The protrusion has a sloped peripheral surface. The protrusion is configured such that in a state where an end portion of the spring is not seated against the spring seat while the spring is placed adjacent to the spring seat, the end portion of the spring contacts the protrusion.

A valve portion of a solenoid valve has a sleeve and a spool. The sleeve has a housing portion larger than an insertion hole in a radial direction. An elastic member is arranged in the housing portion to urge a stator core toward a bottom of a yoke. The elastic member is in contact with a surface of the housing portion, which is non-contact with the spool, facing toward a solenoid portion. The elastic member is in contact with an end surface of a magnetic attraction core adjacent to the valve portion.

A hydraulic multi-way valve with independent oil-port control, includes a multi-way valve body, an A valve core and a B valve core. The multi-way valve body has an A oil port and a B oil port, and includes an A cavity and a B cavity independent from each other therein. The A oil port, a P high-pressure oil port and a T high-pressure oil port are all in communication with the A cavity, the B oil port, the P high-pressure oil port and the T high-pressure oil port are all in communication with the B cavity. The A valve core is arranged in the A cavity, and the B valve core is arranged in the B cavity.

A metering valve has a shutoff position at which it blocks flow from the metering valve outlet line from reaching an outlet to a use. A spool has a first end and a second end. The housing has a first shoulder associated with the first end and a second shoulder associated with the second end. In the shutoff position, the spool has the first end spaced from the first shoulder, and the second end spaced from the second shoulder. A fuel system for a gas turbine engine is also disclosed.

Flow control systems and methods for controlling the flow of liquid into and out of a tubular member comprising a perforated portion that is configured to distribute a flow of liquid having a predefined fixed liquid pressure through the perforated portion to pressurize an intestine that is suspended on the tubular member is disclosed. The flow control system comprises a flow regulating valve having a slidably arranged valve structure arranged in a pressurized liquid filled water chamber and an elastic water-side diaphragm arranged in the water chamber and connected to the valve structure such that the water-side diaphragm allows the valve structure to be moved in a first direction along the longitudinal axis of the valve structure to increase the volume in the water chamber and be moved in the opposite direction to decrease the volume in the water chamber.

A solenoid valve has a valve portion and a solenoid portion. The valve portion includes a sleeve and a spool. The solenoid portion includes a yoke, a plunger, a stator core, and a base portion. The base portion includes a first inner diameter portion, a second inner diameter portion, and a connection surface that connects the first inner diameter portion and the second inner diameter portion to each other in a radial direction. The first inner diameter portion is fastened to a first outer peripheral surface of the sleeve. The second inner diameter portion is arranged radially outside a second outer peripheral surface of a magnetic attraction core. The base portion is in contact with the yoke. The connection surface and a sleeve end surface of the sleeve adjacent to the solenoid portion in the axial direction are spaced from each other in the axial direction.

A pump assembly is disclosed. The pump assembly including an outer casing having a first end, an opposing second end, and a cavity therein; a discharge tube positioned in the cavity and exiting the first end of the outer casing; a check valve positioned in the cavity and operably connected to the discharge tube by a coupling; and a multi-float control assembly positioned in the cavity, the multi float control assembly including a bottom float check valve operably connected to the discharge tube by the coupling and an upper float check valve connected to a vent exiting the first end of the outer casing.