Abstract: Provided is a fluid flow valve including a valve head configured with an inside fluid port being in fluid flow communication with an outside fluid port. The valve head is configurable for coupling at a top portion of a substantially upright tube section. A valve module may be disposed below the valve head and displaceable under fluid pressure along a longitudinal axis between an open position, at which fluid flow is facilitated thorough the valve head, and a sealed position, at which the valve module sealingly engages the inside fluid port to thereby prevent fluid flow through the valve head.

Abstract: A gas purge valve (20) comprising a housing (22) configured with float chamber (40) extending between a fluid inlet port (36) and a fluid outlet port (38), the float chamber accommodating a float-activated valve assembly (50) axially displaceable within the float chamber. The valve assembly comprising at least a kinetic sealing component (54) being axially displaceable within the housing between at least a closed position sealingly engaging a sealing seat (48) of the fluid outlet port, and an open position in which it is disengaged from the sealing seat. The fluid inlet port is in flow communication with the float chamber through a fluid inlet path configured with a fluid flow regulator (100) configured with a fluid discharge flow path (102). The arrangement is such that the minimal diameter of the fluid discharge flow path is greater than the diameter of at least a lower portion of the valve assembly.

Abstract: A gas purge valve (20) comprising a housing (22) configured with float chamber (40) extending between a fluid inlet port (36) and a fluid outlet port (38), the float chamber accommodating a float- activated valve assembly (50) axially displaceable within the float chamber. The valve assembly comprising at least a kinetic sealing component (54) being axially displaceable within the housing between at least a closed position sealingly engaging a sealing seat (48) of the fluid outlet port, and an open position in which it is disengaged from the sealing seat. The fluid inlet port is in flow communication with the float chamber through a fluid inlet path configured with a fluid flow regulator (100) configured with a fluid discharge flow path (102). The arrangement is such that the minimal diameter of the fluid discharge flow path is greater than the diameter of at least a lower portion of the valve assembly.

Abstract: A dual quantity flushing valve mechanism comprising a housing having a base fitting for attachment to a water outlet of a toilet cistern, an overflow tube axially displaceable within the housing and having a bottom portion extending substantially coaxial within the housing, a top portion parallel to the bottom portion and extending outside of the housing, and an intermediate, inclined portion extending between the top portion and the bottom and projecting through the housing, with a seal disc fitted at a bottom of the bottom portion for sealing engagement of the water outlet.