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CN112096904A
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Telescopic frictionless ball valve driven by disc type motor and face cam
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Telescopic frictionless ball valve driven by cooperation of linear motor and swing oil cylinder
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CN112096903A
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Conical motor servo direct-drive type valve core and valve seat separation type friction-free ball valve
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CN112096902A
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Linear motor and swing cylinder cooperative drive type valve core and valve seat separation type friction-free ball valve
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CN112096907A
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Separated friction-free ball valve with motor lead screw and guide piece cooperatively driving valve core and valve seat
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CN112096905A
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Disk type motor is with face cam drive valve core disk seat separation type friction-free ball valve in coordination
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CN112096899A
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Conical motor servo direct-drive telescopic frictionless ball valve
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Valve core and valve seat separated friction-free ball valve directly driven by cooperation of linear motor and rotary motor
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Pipeline leakage analysis method and device and computer readable storage medium
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Estimation method and related device for oil leakage diffusion across river oil pipeline
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Circumferential weld risk estimation method and device for conveying pipeline and readable storage medium
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Method, device and medium for generating leakage diffusion data of urban building group conveying pipeline
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Anchoring type pipeline anti-seismic protection structure
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Miniature pile frame type pipeline anti-seismic protection structure
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Oil containment boom arranges rudder fence body subassembly and arranges rudder
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Valve load test system
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Multi-power manual reset direct-drive type angular travel valve rapid cut-off executing mechanism
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CN111425650A
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Disc type motor-driven worm gear and worm transmission angle stroke type quick cut-off executing mechanism
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CN111425646A
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Multi-power manual reset direct-drive type straight-stroke rapid cut-off execution device
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Disc spring energy storage reset servo direct-drive type angular travel rapid turn-off executing device
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