To check the functionality/leak-tightness of a brake-by-wire brake system, a motor-operated brake pressure transducer is actuated. In this case, a pressure medium would flow out into a reservoir via a master brake cylinder. A diagnostic valve is therefore provided between the master brake cylinder and the reservoir, which diagnostic valve is composed of a check valve and a restrictor connected in parallel with respect to the check valve. The outflow of pressure medium is limited by the restrictor. Because the gradient of the pressure dissipation can be calculated, a measured pressure build-up can be compared with that which is to be expected, and a determination of functionality/leak-tightness can be derived from the comparison.

To check the functionality/leak-tightness of a brake-by-wire brake system, a motor-operated brake pressure transducer is actuated. In this case, a pressure medium would flow out into a reservoir via a master brake cylinder. A diagnostic valve is therefore provided between the master brake cylinder and the reservoir, which diagnostic valve is composed of a check valve and a restrictor connected in parallel with respect to the check valve. The outflow of pressure medium is limited by the restrictor. Because the gradient of the pressure dissipation can be calculated, a measured pressure build-up can be compared with that which is to be expected, and a determination of functionality/leak-tightness can be derived from the comparison.

A valve includes an inlet and an outlet; a body including a first seat and a second seat; a cavity in the body; a piston positioned in the cavity; and a pilot ball adjacent the piston and that is disposed in a pilot seat, and a rear surface of the piston butts against the pilot seat at a maximum open position of the piston. Each of the first seat and the second seat is a seat that is a mechanical stop that prevents the piston from extending further than the closed position. The piston includes a flat front face that contacts the first seat when in the closed position, and a nose extension that extends outward and away from a center portion of the front face, and the nose extension has an opening through a center of a front surface thereof.

The invention relates to an intelligent safety valve comprising a valve body having a first valve inlet, a valve outlet and a first sensor compartment, the first sensor compartment including a first sensor assembly, the first sensor compartment being arranged in the valve body, a first closing unit suitable for closing the intelligent safety valve, an actuator mechanically connected to the first closing unit in order to close the first closing unit, and a control unit which is connected to the actuator and is suitable for controlling the actuator, wherein the control unit is connected to the first sensor assembly in order to evaluate sets of measured values from the first sensor assembly, and wherein the first sensor assembly comprises at least one analysis sensor, for example a pH sensor, a conductivity sensor or an oxygen sensor.

A pressure relief valve may comprise a housing, a disk, and a seal. The disk may be configured to deflect relative to the housing. The seal may form a sealing interface with at least one of the housing or disk. The pressure relief valve may be coupled to an inflatable slide or an aspirator.

The single-action emergency thermal valve comprises a body with a through channel for coolant supply through its inlet in the direction of its outlet, and a fuse link in the through channel of the body; the fuse link consists of at least two parts that completely overlap the section of the through channel, are made of materials with different melting points, and are located in the through channel in series with the increase of the melting temperature of each successive part in the direction from the through channel inlet to its outlet, wherein the body can have transverse ribs and/or transverse ridges at the location of the fuse link.

An overflow and overheat shutoff safety gas inlet connector, comprising a gas inlet connector, to be connected to the gas source, with a gas inlet hole configured axially, a chamber configured on one end to be connected to the gas inlet hole, and a plurality of holding compartments configured on one side of the chamber, a connecting tube, in threaded connection with the gas inlet connector, with a convex portion on its one end, a transfer canal configured axially and going through the convex portion, said transfer canal matching the gas inlet hole, a first magnetic piece, made of a magnetic material, movably configured inside the chamber and matching the gas inlet hole and the transfer canal, able to seal the transfer canal when being pressed against the convex portion, a plurality of second magnetic pieces, made of a magnetic material, and a plurality of temperature control pieces.

A transportable valve rack for securing a plurality of pressure safety or pressure relief valves in an upright position. The valves of the type having a bolted flange-type connection and the rack comprises a base assembly and a top plate mounted on the base assembly. The top plate includes a plurality of areas, with each area comprising a plurality of holes arranged on a circumference of two or more concentric circles. The plurality of holes extends through the top plate and at least four holes are on the circumference of each concentric circle. The holes are sized and arranged to align with bolt holes of pre-selected flanges of particular size and pressure rating. Nuts and bolts extended through aligned holes secure the valve to the valve rack.

A transportable valve rack for securing a plurality of pressure safety or pressure relief valves in an upright position. The valves of the type having a bolted flange-type connection and the rack comprises a base assembly and a top plate mounted on the base assembly. The top plate includes a plurality of areas, with each area comprising a plurality of holes arranged on a circumference of two or more concentric circles. The plurality of holes extends through the top plate and at least four holes are on the circumference of each concentric circle. The holes are sized and arranged to align with bolt holes of pre-selected flanges of particular size and pressure rating. Nuts and bolts extended through aligned holes secure the valve to the valve rack.

The invention provides a system for equalizing airflow in lines delivering product-conveying air to boom sections of an agricultural machine by controlling valves, such as electronically, in each air distribution line to induce additional pressure drops in lines which would cause imbalance in the system. Such valves can include, but are not limited to: ball valves, butterfly valves, gate valves, globe valves, diaphragm valves, pinch valves and/or plug valves. With the proposed system, the lines of least pressure drop can be induced with additional pressure drop by particular valves in order to bring the lines back to a balanced state.