Hydraulics and Pneumatics: Unit IV: Pneumatic and Electro Pneumatic Systems

pneumatic (or air control) valves

Functions of Pneumatic Valves, Types

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Now we shall see some important air control valves in the following sections.

PNEUMATIC (OR AIR CONTROL) VALVES

1. Functions of Pneumatic Valves

The main functions of pneumatic valves are :

(i) To start and stop pneumatic energy;

(ii) To control the directional flow of compressed air;

(iii) To control the flow rate of the compressed air; and

(iv) To control the pressure rating of the compressed air.

2. Types of Pneumatic Valves

The pneumatic valves can be classified in many ways.

I. Classification based on their main function :

1. Directional control valves,

2. Non-return valves,

3. Pressure control valves, and

4. Flow control valves.

II. Classification based on their construction :

1. Poppet (or seat) type valves,

2. Sliding spool type valves, and

3. Rotary spool type valves.

Now we shall see some important air control valves in the following sections.

Hydraulics and Pneumatics: Unit IV: Pneumatic and Electro Pneumatic Systems : Tag: : Functions of Pneumatic Valves, Types - pneumatic (or air control) valves

Home | Department: Mech Department | Subject: Hydraulics and Pneumatics |

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Hydraulics and Pneumatics: Unit IV: Pneumatic and Electro Pneumatic Systems

Pneumatic and Electro- Pneumatic Systems - Learning Objectives, Introduction

pneumatics and pneumatic systems - Pneumatic and Electro Pneumatic Systems - Hydraulics and Pneumatics

properties of air - Pneumatic and Electro Pneumatic Systems - Hydraulics and Pneumatics

Basic pneumatic system - Pneumatic and Electro Pneumatic Systems - Hydraulics and Pneumatics

some numerical examples illustrating perfect gas laws - Pneumatic and Electro Pneumatic Systems - Hydraulics and Pneumatics

Review and summary - Pneumatic and Electro Pneumatic Systems - Hydraulics and Pneumatics

Two marks questions and answers - Pneumatic and Electro Pneumatic Systems - Hydraulics and Pneumatics

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Air Compressors and Fluid Conditioners - Learning Objectives, Introduction

compressors - Pneumatic and Electro Pneumatic Systems - Hydraulics and Pneumatics

piston-type reciprocating compressor - Construction, Operation, Advantages, Ranges

screw compressors - Construction, Operation, Advantages, Ranges

Rotary vane compressor - Pneumatic and Electro Pneumatic Systems - Hydraulics and Pneumatics

fluid conditioners - Introduction

Air filters - Pneumatic and Electro Pneumatic Systems - Hydraulics and Pneumatics

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