Gate Valve Parts And Function Pdf

When the gate valve is fully open the disk of a gate valve is completely removed from the flow.

Gate valve parts and function pdf.

The body bonnet trim internal elements actuator and packing. When the valve is wide open the wedge is lined entirely out of the waterway. A valve controls system or process fluid flow and pressure by performing any of the following functions. Therefore virtually no resistance to.

Index iron valve selection guide figure number index catalog crane pressure stem. 0250 application gate valves are designed for use in the fully open or fully closed position and are not recommended tor throttling. A gate valve is the most common type of valve used in any process plant. In service these valves are either in a fully open or fully closed position.

Bronze gate valve solid wedge non rising stem fig. Throttling the fluid flow. C controlling the direction of fluid flow. Functions of parts of gate valve.

The closure member of gate valves either stops or allows flow through the valve and acts somewhat like the opening or closing of a gate and is called appropriately the gate valve. It is a linear motion valve used to start or stop fluid flow. Of its resistance to flow when tulty open. Class 300 and 600 valves consist of a circular spiral wound gasket.

Gate valves the gate valve is the type of valve most often used in industrial piping. Brochures and catalogs are available on request. A valve is a mechanical device that controls the flow of fluid and pressure within a system or process. Stopping and starting a fluid flow.

The body sometimes called the shell is the primary pressure boundary of a valve. Gate valves are used when a straight line flow of fluid and minimum flow restriction are needed. The gate valve is particularly desirane and generally tot use in applications where a minimum pressure drop is required. It serves as the principal.

B varying throttling the amount of fluid flow. D regulating downstream system or process pressure. A stopping and starting fluid flow. Crane also manufactures bronze ball valves iron wafer and lug butterfly valves and bronze gate globe and check valves.

Gate valve description gate valves are primarily designed for on off services when a straight line flow of fluid and minimum restriction is desired. The basic parts of a valve are illustrated in figure 1. When the valve is wide open the gate is fully drawn into the valve bonnet. Class rs or nrs ibbm al 3ni 2nr bb tb.

Class 150 gate valves consist of a square joint in 2 and an oval one for all other sizes. Depending on the valve service it can be supplied flat face gasket with graphite or ptfe. Gate valves use a sliding plate within the valve body to stop limit or permit full flow of fluids through the valve. Regardless of type all valves have the following basic parts.

The significant feature of the gate valve is less obstruction to flow with less turbulence within the valve and very little pressure drop. Valve functions and basic parts. Some of the valves let you throttle the fluid depending open of total opening. Class 900 and above gate valves consist of a ring type joint.