4. Fluid handling
  5. Line condition change responsive valves
  6. Direct response valves

Charles C. Partridge

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Ball valve seat assembly having a removably mounted face seal in

Valves and valve actuation – With means to increase head and seat contact pressure – Seat pressed to valve
Patent

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Bonnetless swing check valve

Fluid handling – Line condition change responsive valves – Direct response valves
Patent

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Check valve

Fluid handling – Line condition change responsive valves – Direct response valves
Patent

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Compact expanding gate valve

Valves and valve actuation – With means to increase head and seat contact pressure – With positive reduction
Patent

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Controlled float seat arrangement for expanding gate valves

Valves and valve actuation – With means to increase head and seat contact pressure – With positive reduction
Patent

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Profile ID: LFUS-PAI-P-64006

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