Abstract The bleed valve of the present invention has a fixed body member for installation through the wall of the particular pressure vessel involved so as to be in direct communication with the cavity. The main valve portion moves axially from the closed to the open position for bleeding or sampling and is restrained from going beyond the full open position. The slidable portion is sealed against leakage of fluid pressure by an O-ring which has its own housing in the slidable portion and so remains in position at all times. It is always positioned beyond the fully open position so that no pressure or sample escapes beyond the intended outlet. The valve is useful for bleeding air or fluid under pressure in a pressure vessel, pump, or valve, particularly as a means for checking seals, sampling the contents, or reducing internal pressures.
A bleed valve having an elongated member movable axially within a fixed body member, a fixed body member adapted to be secured through the wall of a vessel having an outlet port externally of the vessel, said elongated member having an axial passage partly therethrough opening into the interior of a vessel at its inner end and connecting with an exit passage therein at its outer end, said exit passage being angularly disposed with respect to said axial passage and adapted to register with the outlet port of said fixed body member in the open position, and a fluidtight seal outwardly of said exit passage continuously sealing against the inner surface of said fixed body member.
Claim 2
Dependent Claim
116 words
A bleed valve having an elongated member movable axially within a fixed body member, a fixed body member adapted to be secured through the wall of a vessel having an outlet port externally of the vessel, said elongated member having an axial passage partly therethrough opening into the interior of a vessel at its inner end and connecting with an exit passage therein at its outer end, said exit passage being angularly disposed with respect to said axial passage and adapted to register with the outlet port of said fixed body member in the open position, and a fluidtight seal outwardly of said exit passage continuously sealing against the inner surface of said fixed body member.
Claim 3
Dependent Claim
29 words
The bleed valve of claim 1 wherein the elongated member is formed to employ a tool for axial movement from the closed to the open position and vice versa.
Claim 4
Dependent Claim
25 words
The bleed valve of claim 1 wherein the elongated member has a stop on its inner end to prevent axial withdrawal through the fixed member.
Claim 5
Dependent Claim
19 words
The bleed valve of claim 1 wherein the fixed member threadably receives the elongated member for rotary axial movement.