Gate Valve Parts And Function Pdf

Class 900 and above gate valves consist of a ring type joint.

Gate valve parts and function pdf.

It serves as the principal. Class 150 gate valves consist of a square joint in 2 and an oval one for all other sizes. Stopping and starting a fluid flow. The gate is usually wedge shaped.

A gate valve is the most common type of valve used in any process plant. Index iron valve selection guide figure number index catalog crane pressure stem. B varying throttling the amount of fluid flow. The body bonnet trim internal elements actuator and packing.

The basic parts of a valve are illustrated in figure 1. Depending on the valve service it can be supplied flat face gasket with graphite or ptfe. When the valve is wide open the wedge is lined entirely out of the waterway. The gate valve is particularly desirane and generally tot use in applications where a minimum pressure drop is required.

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. Class rs or nrs ibbm al 3ni 2nr bb tb. Class 300 and 600 valves consist of a circular spiral wound gasket. Depending on whether a valve is open or closed it let pass the process fluid or halt the fluid.

C controlling the direction of fluid flow. It is a linear motion valve used to start or stop fluid flow. Brochures and catalogs are available on request. D regulating downstream system or process pressure.

Valve serve a various function within the piping system. When the valve is wide open the gate is fully drawn into the valve bonnet. Some of the valves let you throttle the fluid depending open of total opening. Throttling the fluid flow.

Bronze gate valve solid wedge non rising stem fig. When the gate valve is fully open the disk of a gate valve is completely removed from the flow. Valve functions and basic parts. 0250 application gate valves are designed for use in the fully open or fully closed position and are not recommended tor throttling.

Gate valves are used when a straight line flow of fluid and minimum flow restriction are needed. In service these valves are either in a fully open or fully closed position. The body sometimes called the shell is the primary pressure boundary of a valve. Gate valve description gate valves are primarily designed for on off services when a straight line flow of fluid and minimum restriction is desired.

Gate valves use a sliding plate within the valve body to stop limit or permit full flow of fluids through the valve. Therefore virtually no resistance to. Functions of parts of gate valve. Crane also manufactures bronze ball valves iron wafer and lug butterfly valves and bronze gate globe and check valves.

Regardless of type all valves have the following basic parts. A stopping and starting fluid flow. A valve is a mechanical device that controls the flow of fluid and pressure within a system or process. Gate valves the gate valve is the type of valve most often used in industrial piping.