Types of Valves

 

 TYPES OF VALVES PREPARED PREPAR ED BY-MOHAMMED BY-MOHAMMED SALEM ALI -ALAMARI

 

IN THIS PRES PRESENT ENTA ATION WE WILL DIS DISCUSS CUSS ABOUT THE TYPES TYPE S OF VAL VALVES VES •

Gate Valve

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Globe valve

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Check valve Plug valve

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Ball Valve

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Butterfly Butte rfly Valve Valve

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Needle Valve

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Pinch Valve

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Pressure Relief valve

 

 WHAT T IS VAL ALVE??? VE???  WHA

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Regulates

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Controls

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Directs the flow

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Opening

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Closing

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Partially obstructing fluid flow

 

GATE VAL VALVE

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Most common type

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Fully open or fully closed

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Minor pressure loss when fully open

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Used in all types of services

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Provide good shut off 

 

GLOB GL OBE E VALVE VALVE

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Used to stop , start ,and regulate the fluid flow

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Flow control and leak tightness required

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Costlier than gate valve

 

CH CHEC ECK K VAL VALVE VE

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Prevent back flow in piping system

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Open with forward flow and closed

automatically in case of back flow

 

PLUG PL UG VAL ALVE VE

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Quarter-turn Quart er-turn V Valve alve

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The disk is a solid plug with a bored

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Used as on-off stop valves

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Capable of providing bubble tight shutoff 

 

BA BALL LL VAL ALVE VE

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Rotary motion quarter turn valve

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Uses a ball-shaped disk to stop or start flow

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Quick-acting type

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Smaller and lighter than gate valve of same size

and rating

 

BUTTE TERF RFL LY VAL VALVE VE BUT

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Quarter-turn rotary motion valve

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Used to stop st op , rregulate, egulate, and start flow

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Light weight and easy to install and maintain

 

NEED EDLE LE VALVE VALVE NE

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Design similar to globe valve

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Very fine control of flow in small diameter piping ssystems ystems

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Sharp-pointed conical disc and matching seat

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Needell acts as a disk 

 

PINC PI NCH H VAL VALVE VE

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Simplest valve design

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Linear motion valve

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Used to start s tart , regulate, and stop fluid flow

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Use a rubber tube known as pinch tube

 

PRES PRESSURE SURE RELI RELIEF EF VAL ALVE VE

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Used to protect equipment or piping pi ping system from

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Over pressure

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Vaccum

 

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