Sharpe Valves 34834 Series Carbon Steel Gate Valve, Class 800, Rising Stem, Inline, Hand Wheel, 1" Socket Weld
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This class 800 Sharpe valves 34834 series carbon steel gate valve has a rising stem, lockable oval handle, and socket weld connections on both ends. It has a bolted bonnet, and its carbon steel construction provides tensile strength and hardness. The rising stem moves up and down with the gate, providing a visual signal (when extended) that the valve is open. This stem design also prevent the stem threads from coming into contact with flow to avoid corrosion to extend valve life. This valve has socket-weld ends for connecting to unthreaded pipe ends. The joined pieces are welded together to create a tight seal against leaks. Mounted on top of the valve, a manually operated hand wheel activates the inside screw mechanism, which lifts and lowers the gate to start and stop the flow between the connected pipes. The hand wheel is lockable to prevent the valve from being opened or closed accidentally. This gate valve meets American Society for Testing and Materials (ASTM) A105 standards for quality assurance.
Gate valves control flow in a piping system by lifting a gate out of the path of steam, fluids, or gases. They are designed to block or permit flow, as the vibrations and force of flow repeatedly striking a partly lowered gate can damage the gate and seats. To accommodate different flows and pressure requirements, gates come in four types: solid wedge (appropriate for almost all liquid service), flexible wedge (appropriate for steam service), split wedge (appropriate for normal temperature, non-condensing gas and liquid service, including corrosive service), and parallel disc (appropriate for high and low pressure applications). Hand wheels or levers activate the screw mechanism in the valve s bonnet, which comes in various designs, to open and close the gate. Union bonnets are preferable for building service piping, threaded-in (or screw-in) bonnets work well for lighter-duty usage, and bolted body-bonnet connections are used primarily in iron multi-turn valves. Most gate valves have either a rising stem, which moves up and down with the gate, or a non-rising stem, which remains fixed in place. When closed, the gate and its seats form tight planar sealing surfaces, ideal for linear liquid flow. Gate valves are used in air, gas, liquid, and steam applications.
Sharpe Valves manufactures a wide variety of valves, including stainless and carbon steel ball, gate, globe, and check valves. The company, founded in 1986 and headquartered in Chicago, IL, meets International Organization for Standardization (ISO) 9001:2008 standards based on Sharpe's design and manufacturing of valves.
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