초록 ▼

A probe activated valve system is disclosed that permits easier and safer testing of fluids in a pressurized system. The system has a shell having a valve passage. The valve passage has an end through which the valve passage is fluidly connected to a probe passage. A valve seat is provided at the en

A probe activated valve system is disclosed that permits easier and safer testing of fluids in a pressurized system. The system has a shell having a valve passage. The valve passage has an end through which the valve passage is fluidly connected to a probe passage. A valve seat is provided at the end of the valve passage. A valve sealing member forms a face seal against the valve seat by compressing a retained sealing member, such as an O-ring. The valve sealing member is moveable from a closed position to an open position, upon insertion of a probe to engage and displace the valve sealing member along the valve passage, such that the valve sealing member is spaced from the valve seat and allows fluid in the valve passage to flow to the probe passage for collection by the probe.

대표청구항 ▼

1. A probe activated high pressure sampling valve system comprising:a shell having a valve passage, the valve passage having both an axis and an end through which the valve passage is fluidly connected to a probe passage; a valve seal at the end of the valve passage, the valve seat having a face tra

1. A probe activated high pressure sampling valve system comprising:a shell having a valve passage, the valve passage having both an axis and an end through which the valve passage is fluidly connected to a probe passage; a valve seal at the end of the valve passage, the valve seat having a face transverse to the axis of the valve passage; a valve sealing member having a face transverse to the axis of the valve passage, a deformable sealing member circumferentially compressed and retained in an annular groove protruding from one of the valve seat face or the valve sealing member face, so that the deformable sealing member is compressed in the annular groove to expose only a small portion of me deformable sealing member; the valve sealing member moveable from a closed position in which the deformable sealing member is compressed between the face of the valve sealing member and the face of the valve seat to form a face seal between the parallel faces of the valve seat and the valve sealing member to prevent fluid in the valve passage from flowing to the probe passage, to an open position, upon insertion of a probe to engage and displace the valve sealing member along the axis of the valve passage, such that the face of the valve sealing member is spaced from the face of the valve seat allowing fluid in the valve passage to flow at high velocity from a high pressure zone, having a pressure of up to about 7500 psi, to a low pressure zone, having a pressure as low as atmospheric pressure, in the probe passage for collection by the probe. 2. The probe activated valve system of claim 1, wherein the valve seat is a stop integrally formed on the shell.3. The probe activated valve system of claim 1, further comprising an insert member provided at the end of the valve passage, the insert member having a head, the valve seat being provided on the head.4. The probe activated valve system of claim 1, further comprising biasing means normally urging the valve sealing member to the closed position.5. The probe activated valve system of claim 1, wherein the retained sealing member comprises an elastomeric material.6. The probe activated valve system of claim 5, wherein the retained sealing member is an O-ring.7. The probe activated valve system of claim 1, wherein the deformable sealing member is circumferentially retained in the annular groove by mechanical forming.8. The probe activated valve system of claim 7, wherein the deformable sealing member is circumferentially retained in the annular groove by coining.9. The probe activated valve system of claim 7, wherein the deformable sealing member is circumferentially retained in the annular groove by rolling.10. The probe activated valve system of claim 7, wherein the deformable sealing member is circumferentially retained in the annular groove by a pressing operation.11. The probe activated valve system of claim 4, wherein the valve system works inline with a second valve system controlling the main passage creating a twin valve system, both valve systems utilizing the same biasing means.12. The probe activated valve system of claim 1, further comprising a recess in the valve-sealing member for aligning the inserted probe with the valve sealing member.13. The probe activated valve system of claim 1, wherein the probe is permanently fixed to the valve sealing member.14. The probe activated valve system of claim 13, wherein the probe is permanently fixed to the valve sealing member by frictional engagement with a recess in the valve sealing member.15. The probe activated valve system of claim 13, wherein the probe is permanently fixed to the valve sealing member by threaded engagement with a recess in the valve sealing member.16. The probe activated valve system of claim 4, wherein the valve sealing member and biasing means prevent activation of the valve system by manual forces alone without mechanical advantage against a potentially unsafe system pressure.17. The probe activated valve system of claim 1, wherein the shell comprises threaded means for cooperation with corresponding threaded means on a collar to activate the probe, by means of mechanical advantage to allow high pressure fluid in the valve passage to flow to the probe passage.18. A probe activated high pressure sampling valve system comprising.a shell having a valve passage, the valve passage having both an axis and an end through which the valve passage is fluidly connected to a probe passage, the valve seat having a face transverse to the axis of the valve passage; a valve seat at the end of the valve passage; a valve sealing member having a face transverse to the axis at the valve passage; a deformable sealing member circumferentially compressed and retained in an annular groove protruding from one of the valve seat face or the valve sealing member face, so that the deformable sealing member is compressed in the annular groove to expose only a portion of the sealing member less than about 20% of the circumference of the deformable sealing member; the valve sealing member moveable from a closed position in which the deformable sealing member is compressed between the face of the valve sealing member and the face of the valve seat to form a face seal between the parallel faces of the valve seat and the valve sealing member to prevent fluid in the valve passage from flowing to the probe passage, to an open position, upon insertion of a probe to engage and displace the valve sealing member, along the axis of the valve passage, such that the face of the valve sealing member is spaced from the face of the valve seat allowing fluid in the probe passage to flow to the valve passage. 19. The probe activated valve system of claim 1 wherein the deformable sealing member is compressed into the annular groove to expose a portion of the sealing member of less than about 20% of the circumference of the deformable sealing member.