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???? ????? ??? ??????? ???????? 2012-03-12
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SpanishAlpha ???? ???? ????? ??????? ?????? ???? ????? ???? ?????? ??????? (?????) ?? ???? ???? ????? ????? ????? ?? 2012-02-27
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The introduction of plug valve 2012-02-23
Plug valves are valves with cylindrical or conically-tapered "plugs" which can be rotated inside the valve body to control flow through the valve. The plugs in plug valves have one or more hollow pass
HIGH PRESSURE BUTTERFLY VALVE 2012-02-06
A high pressure butterfly valve having a pressure actuatable valve element that is flexed by fluid pressure to enhance the sealing ability of the valve in direct proportion to the pressure of the flui
PRESSURE REDUCING VALVE SPOOL 2012-02-01
Several embodiments are disclosed of various spool configurations for controlling the flow of an expandable fluid from a high pressure zone to a zone of lesser pressure. The spools structurally confor
Electrohydraulic pressure regulating valve 2012-01-20
An electrohydraulic pressure regulating valve comprises a variable orifice disposed between a supply port and a control port and has a fixed size vent orifice disposed downstream of the variable orifi
Aerosol spray can with pressure reducing valve 2012-01-19
For a pressure reduction, an aerosol spray can filled with a compressed pressure gas requires, upstream of its spray valve, a pressure regulation valve with a closing point. In known embodiment types
