Chap1 fittings&connectors

Pneumatic circuit building

A brief introduction to various fittings & connectors used while building a pneumatic circuit.

Chapter 1. Fittings & Connectors

Presented By:Smriti Mehta Pranav Pande

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Push – in Fittings

“ Fittings are those in which the input port is threaded, in addition to push-in type pipe

connectors at the output”

Push-in type pipe connectors

Threaded input port

Types

Straight

L- fitting (a.k.a elbow)

T- fitting

Y- fitting

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Nomenclature

L - G½ - 10 or T - G½ - 12

diameter of pipe in mm

size of thread in inches. type of thread (metric, G, R ) type of connector [ straight , Y, T, L (elbow) ]

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In the stores !

Sr. No.

Fitting Type

Thread

type

Thread

Dia

Connector Dia

What to ask for at the stores

1. Straight / L-Type / T- Type / Y- Type

G 1/8” 6

(Type) – thread Dia

(e.g. ¼”) – connector Dia

(e.g. 12)


G 1/4” 10


G 1/4” 12


G 1/2” 12


G 1/2” 16

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Push in connector end

Fitting end (Male or Female Thread)

External Hexagon for easy tightening

Teflon coated threads for proper sealing

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ExerciseQ.1 Recognize the fitting being circulated.

Q.2 What does “ ¼ - 12 ” mean ?

Push – in Connectors

“ Push-in Connectors are those which have no threading on either of the ports instead have Push-in

connections on both ends”

Push- in fitting at input

Push- in fitting at output

Types

Straight

L- fitting (a.k.a elbow)

T- fitting

Y- fitting

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What is a reducer ?

“ A reducer as the name implies, is a component in the pneumatic circuits which connects a high lpm opening (probably of a valve) to a relatively lower lpm component,

in turn reducing the output flow-rate”

.

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No rocket science ,Reducer is simply a connector with

different input and output diameters.

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Dia 12

Dia 10

Yes,

Call it a 12-10

straight connector

or a 12-10 straight

reducer, makes no

difference !

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Nomenclature

L – 12 - 10 or T - 10 - 8

output dia wanted (in

mm)

input dia wanted (in mm)type of connector [ straight , L, T, L (elbow) ]

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In the stores !Sr. No.

Connector Type

Input Dia

Output Dia

What to ask for at the stores


12 12

(Type) – input Dia (e.g.

12) – output Dia

(e.g. 10)


12 10


10 10


10 8


10 6


8 6

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Q. How to identify a reducer from the stores ?Ans. Well, its inscribed on the connector

Look it is that simple !

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Exercise

Q.1 Recognize the connector being circulated.

Q.2 How will you convert a 12 dia input to a 6 dia output ?

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12 mm pipe 12-10 straight connector

10 mm pipe10 - 6 straight connector

Answer

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Bulkhead connectors

“ Bulkhead connectors are used in places where mountings or support to the pipe is necessary. They are mounted on a fixed

plate with overhang push-in pipe connectors on both sides” .

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Advantages of using bulkheads

• Provides support to the pipelines.• Ease of maintenance.• Ease while assembling.• Flexibility in assembling.

* Alternate solution to the use of Bulkheads

- Grometing of holes.

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Push- in sleeve

“ A Push- in sleeve is a male form of a connector ”

* Reducers in the form of push- in sleeves are also available.

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There is just one type available, i.e. Straight type Push- in sleeve

Never ask for a T, L, or Y push- in sleeve.

Types

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In the stores !

Sr. No.

1st opening Dia

2nd opening

Dia

What to ask for at the

stores 1. 12 12

(Type) – input Dia (e.g. 12)

– output Dia (e.g. 10)

2. 12 10

3. 10 10

4. 10 8

5. 10 6

6. 8 6

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How to use ?

T- 12- 10 connector

S - 8- 6 connector

10- 8 push- in sleeve

What you save ?• One S- 10-8 connector.• 10mm dia pipe• 8mm dia pipe

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Thank You .

Do bother to bother us , ask Questions !

Education

Chap1 fittings&connectors