02. types of valve

TYPES OF VALVES

VALVE

GATE VALVE

GLOBE VALVE

BALL VALVE

BUTTERFLY VALVE

PLUG VALVE

CHECK VALVE

SAFETY VALVE

TYPES OF VALVES

GATE VALVE

How to specify? Valve size - Connection type – flanged / screw / socket weld

Pressure rating (for flange connection) Material-

o Body o Stem o Gate o Wedge o Seat type.

Function / use - Permit or prevent the flow (isolation)

TYPES OF VALVES

GLOBE VALVE

How to specify?

Valve size - Connection type – flanged / screw Pressure rating (for flange conection) Material-

o Body o Stem o Gate o Disc o Seat type.

Function/ use - Control or regulating the flow in the pipe line

TYPES OF VALVES BALL VALVE

How to specify? Valve size - Connection type – flanged / screw/SW Pressure rating (for flange conection)

Material-

Function/ use - Primarily for on / off service

TYPES OF VALVES

How to specify?

Valve size - Connection type – flanged / screw/SW Pressure rating (for flange conection) Material-

Function/ use - Primarily for on / off service

TYPES OF VALVES PLUG VALVE

How to specify? Valve size - Connection type – flanged / screw/SW

Pressure rating (for flange conection) Material-

Function/ use - Used for non-throttling on / off operation

TYPES OF VALVES CHECK VALVE

(A)

(B)

(C)

(D)

(E)

Type of Check valve (A)- Swing check valave (B)- Piston check valve (C)- Tilting disc (D)- Lift Check Valve (E) – Butterfly check valve

Function/ use - Used to prevent reversal flow.

TYPES OF VALVES SAFETY VALVE/PRESSURE SAFETY VALVE/ RELIEF VALVE

(A)

(A)- Spring loaded Safety Valve-

Specification Inlet & outlet size

Type of connection (flange rating)

Set Pressure

Size of Orifice

Service fluid

TYPES OF VALVES

(B)

(B)- Pilot Operated Safety Valve- which is applied in a severe condition such as high pressure Specification

Inlet & outlet size

Type of connection (flange rating)

Set Pressure

Size of Orifice

Service fluid