Abstract: Modular valve assemblies are disclosed. In embodiments the modular valve assemblies include a first frame and a second frame. The first frame includes a fluid inlet and first mount, and the second frame includes a fluid outlet and a second mount. A connection element extends between the first mount and the second mount. At least a first modular block and a second modular block are disposed on the connection element and position between the first and second frame. The first and second modular blocks may each be rotatable about the connection element between a use position and a maintenance position. In the use position, a composite flow path extends from the fluid inlet, through a first fluid flow path in the first modular block, through a second fluid flow path in the second modular block, and to the fluid outlet. Rotation of the first or second modular block to its maintenance position moves the first or second fluid flow path, respectively, out of the composite flow path.

Abstract: Modular valve assemblies are disclosed. In embodiments the modular valve assemblies include a first frame and a second frame. The first frame includes a fluid inlet and first mount, and the second frame includes a fluid outlet and a second mount. A connection element extends between the first mount and the second mount. At least a first modular block and a second modular block are disposed on the connection element and position between the first and second frame. The first and second modular blocks may each be rotatable about the connection element between a use position and a maintenance position. In the use position, a composite flow path extends from the fluid inlet, through a first fluid flow path in the first modular block, through a second fluid flow path in the second modular block, and to the fluid outlet. Rotation of the first or second modular block to its maintenance position moves the first or second fluid flow path, respectively, out of the composite flow path.

Abstract: A valve cartridge (1) having a body (10), a piston (12) and a piston support (22). The body has a seat (14). The piston (12) is supported on the piston support (22) and movable between first and second positions. The piston (12) is spaced from the valve seat (14) at the first position and the piston (12) seats on the valve seat (14) at the second position. The piston (12) and piston support (22) form a confined space. The volume of the confined space is at a maximum when the piston (12) is at the first position and is at a minimum when the piston (12) is at the second position. The piston (12) is under bias such that the piston (12) is biased away from the valve seat (14) to the first position and, in use, the piston (12) is able to seat on the valve seat (14) in the second position when subjected to sufficient pressure to counter the bias.