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An electric multi-turn actuator on a gate valve. A gate valve, also known as a sluice valve, is a valve that opens by lifting a barrier (gate) out of the path of the fluid. Gate valves require very little space along the pipe axis and hardly restrict the flow of fluid when the gate is fully opened.
A regulating gate or valve controls water flow into the pipes of the outlet works, which discharge downstream into a stilling basin or directly into the river. [2] The inlets of the outlet works may consist of either gates or valves, or be composed of a more primitive system of stoplogs .
Pressure reducing valve: Valve: Gate valve: Control valve: Manual valve Check valve: Needle valve: Butterfly valve: Diaphragm valve: Ball valve: Check valve: Back draft damper Bag Gas bottle: Globe valve: 3-way valve Piston or reciprocating compressor: Relief valve: Rupture disc: Turboexpander: Centrifugal pump: Reciprocating pump
From January 2008 to November 2011, if you bought shares in companies when Edward D. Breen joined the board, and sold them when he left, you would have a 23.1 percent return on your investment, compared to a -13.9 percent return from the S&P 500.
Shop staff were robbed at knifepoint during a "terrifying incident" that resulted in £80 being stolen, police have said. A man in his 20s has been arrested on suspicion of robbery in connection ...
From January 2008 to May 2008, if you bought shares in companies when J.S. Roy joined the board, and sold them when he left, you would have a -0.2 percent return on your investment, compared to a -4.0 percent return from the S&P 500.
Valves can be categorized into the following types, based on their operating mechanism: Ball valve, for on–off control without pressure drop. Ideal for quick shut-off, since a 90° turn completely shuts off, compared to multiple 360° turns for other manual valves; Butterfly valve, for on–off flow control in large diameter pipes
3.1%; between 2008 and 2012, better performance than 47% of all directors; The Edson Bueno Stock Index. From October 2012 to December 2012, if you bought shares in ...