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FR2466687A1
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Safety valve in case of butterfly fire or spherical shutter
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DE2933127A1
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Fire resistant seat for butterfly or ball valve - has prestressed collar and lip mounted on annular shoulder
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GB2056020A
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Fire resistant valve seat
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CA1097303A
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Fire resistant seat for butterfly and ball valves
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US4253640A
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Actuation system for valve with compound closure movement
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US4203460A
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Ball valve with compound closure movement
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US4175578A
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Fire resistant seat for butterfly and ball valves
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US4132071A
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Electro-hydraulic controlled valve actuator system
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US4124147A
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Flexible diaphragm dispensing system for condiments
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US4044994A
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Pressure loaded sealing arrangement
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US4032044A
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Liquid dispensing unit and system
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US4014514A
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High pressure diaphragm valve
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US3979971A
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Differential drive
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CA1017314A
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Pressure loaded sealing arrangement
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CA1032150A
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Composite elastomeric diaphragm
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US3963185A
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Filament winding method
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US3816032A
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Metering pump
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US3628770A
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Diaphragm valve construction
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GB1291929A
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Improvements relating to fluid flow valves
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US3586289A
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Valve unit and stem packing assembly
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