Gate Valve Parts And Function Pdf

D regulating downstream system or process pressure.

Gate valve parts and function pdf. Gate valves are used when a straight line flow of fluid and minimum flow restriction are needed. Gate valves the gate valve is the type of valve most often used in industrial piping. Of its resistance to flow when tulty open. A stopping and starting fluid flow.

The body sometimes called the shell is the primary pressure boundary of a valve. Index iron valve selection guide figure number index catalog crane pressure stem. Crane also manufactures bronze ball valves iron wafer and lug butterfly valves and bronze gate globe and check valves. Depending on the valve service it can be supplied flat face gasket with graphite or ptfe.

Functions of parts of gate valve. It serves as the principal. 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. The body bonnet trim internal elements actuator and packing.

B varying throttling the amount of fluid flow. It is a linear motion valve used to start or stop fluid flow. When the valve is wide open the gate is fully drawn into the valve bonnet. When the gate valve is fully open the disk of a gate valve is completely removed from the flow.

A gate valve is the most common type of valve used in any process plant. A valve controls system or process fluid flow and pressure by performing any of the following functions. The gate is usually wedge shaped. A valve is a mechanical device that controls the flow of fluid and pressure within a system or process.

Class 900 and above gate valves consist of a ring type joint. When the valve is wide open the wedge is lined entirely out of the waterway. In service these valves are either in a fully open or fully closed position. Therefore virtually no resistance to.

Valve serve a various function within the piping system. The basic parts of a valve are illustrated in figure 1. C controlling the direction of fluid flow. Class 150 gate valves consist of a square joint in 2 and an oval one for all other sizes.

Class rs or nrs ibbm al 3ni 2nr bb tb. 0250 application gate valves are designed for use in the fully open or fully closed position and are not recommended tor throttling. Regardless of type all valves have the following basic parts. Stopping and starting a fluid flow.

The gate valve is particularly desirane and generally tot use in applications where a minimum pressure drop is required. Class 300 and 600 valves consist of a circular spiral wound gasket. Bronze gate valve solid wedge non rising stem fig. Gate valves use a sliding plate within the valve body to stop limit or permit full flow of fluids through the 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. Depending on whether a valve is open or closed it let pass the process fluid or halt the fluid. Valve functions and basic parts. Throttling the fluid flow.