SYSTEM, METHOD AND APPARATUS FOR SPLIT GATE VALVE WITH MECHANICALLY ISOLATED SEAL SURFACES

SYSTEM, METHOD AND APPARATUS FOR SPLIT GATE VALVE WITH MECHANICALLY ISOLATED SEAL SURFACES

A split gate (31) is movably mounted within a valve body (11) along a valve axis (23) between valve seats (25). The split gate (31) has gates (33), each extending between one of the valve seats (25) and the other gate. In an open position, gate holes (35) register with a fluid aperture (19) and the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: COMEAUX, DAVID D, DACH, ANTON J., JR, LAW, ROBERT K
Format: Patent
Sprache:eng ; fre
Schlagworte:
ACTUATING-FLOATS
BLASTING
COCKS
DEVICES FOR VENTING OR AERATING
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
ENGINEERING ELEMENTS AND UNITS
FIXED CONSTRUCTIONS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
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Beschreibung
Zusammenfassung:A split gate (31) is movably mounted within a valve body (11) along a valve axis (23) between valve seats (25). The split gate (31) has gates (33), each extending between one of the valve seats (25) and the other gate. In an open position, gate holes (35) register with a fluid aperture (19) and the valve seats (25) to permit fluid flow. In the closed position, the holes (35) do not register with the fluid aperture (19) to prevent fluid flow. The split gate valve also has a gate guide (51) located in the body (11) for moving the gates (33) with respect to the valve seats (25) along the fluid axis (21). The gate guide (51) forces the pair of gates (33) apart along the fluid axis (21) and into contact with the valve seats (25) in both the open and closed positions. The gates (33) have axial play along the fluid axis (21) when the split gate (31) is between the open and closed positions.