A valve has a valve housing, at least one valve opening, a valve element movably mounted inside the valve housing along a direction of movement B1, B2 between a closing position and an opening position, at least one spring element to reset the valve element from the opening position to the closing position, a carrier element movably mounted inside the valve housing along the direction of movement B1 and at least one sealing element attached to the carrier element. The at least one sealing element and the carrier element are a multi-component part, and may be for example a two-component part.

A dual lock flow gate includes a valve with a flapper which may be fixed and/or locked in various positions.

A dual lock flow gate includes a valve with a flapper which may be fixed and/or locked in various positions.

A dual chamber fuel tank protector valve has a transversely oriented divider defining a plurality of apertures for fluid flow between a first port and a second port. Each chamber has a seal disk therein. The first seal disk is normally biased to an open position by a first biasing member. The second seal disk is normally biased to a closed position by a second biasing member having a preselected biasing force set to a preselected pressure differential that allows movement to its open position before the first seal disk moves to its closed position. When the first seal disk and the second seal disk move to their respective closed positions, the direction of movement is toward one another.

A dual chamber fuel tank protector valve has a transversely oriented divider defining a plurality of apertures for fluid flow between a first port and a second port. Each chamber has a seal disk therein. The first seal disk is normally biased to an open position by a first biasing member. The second seal disk is normally biased to a closed position by a second biasing member having a preselected biasing force set to a preselected pressure differential that allows movement to its open position before the first seal disk moves to its closed position. When the first seal disk and the second seal disk move to their respective closed positions, the direction of movement is toward one another.

Valve disc assemblies for fluid valves having soft seats are disclosed herein. An example valve disc assembly for a fluid valve comprises a first portion to slidably engage a wall of the fluid valve to guide movement of the valve disc assembly and a second portion to receive a valve stem to control a position of the valve disc assembly, the second portion including an angled surface to retain a seal between the first and second portions.

Valve disc assemblies for fluid valves having soft seats are disclosed herein. An example valve disc assembly for a fluid valve comprises a first portion to slidably engage a wall of the fluid valve to guide movement of the valve disc assembly and a second portion to receive a valve stem to control a position of the valve disc assembly, the second portion including an angled surface to retain a seal between the first and second portions.

Two-way pressure relief valves featuring dual poppets and magnets that allow very rapid flow. Such flow is accomplished by a valve housing enclosing a hollow interior portion containing a stationary member including a magnet and a first pressure-movable poppet disposed in sealing arrangement with the housing and including a second magnet. To provide flow in the other direction, a second moveable poppet disposed coaxially and in sealing arrangement with the first poppet and is coupled to a spring that extends from a first end of the second poppet to a support structure coupled to the second magnet.

Two-way pressure relief valves featuring dual poppets and magnets that allow very rapid flow. Such flow is accomplished by a valve housing enclosing a hollow interior portion containing a stationary member including a magnet and a first pressure-movable poppet disposed in sealing arrangement with the housing and including a second magnet. To provide flow in the other direction, a second moveable poppet disposed coaxially and in sealing arrangement with the first poppet and is coupled to a spring that extends from a first end of the second poppet to a support structure coupled to the second magnet.

A pressure vacuum vent is disclosed which has a pressure plate having an opening, a diaphragm positioned on the pressure plate, a sealing ring for holding the diaphragm to the pressure plate, a sealing plate positioned on the diaphragm, a retaining ring for retaining the sealing ring, a screw having a cap having a vent opening, and a spring positioned between the cap and the sealing plate