Coupling Identification - French
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There are five coupling systems generally used for hydraulic
connections today. They are identified geographically or by
country as:
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French Thread Types
Popular couplings are French GAZ. These have a 24° seat
and metric threads. These are similar to German DIN couplings,
but the threads are different in some sizes. Although both are
metric threads, the French use fine threads in all sizes and
German DIN couplings use coarse threads in larger sizes. Most
port connections are flange connections. French flanges are
different than SAE & hellip; they have a lip that protrudes
from the flange face. These are called Poclain style flanges.
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GAZ 24°
GAZ Poclain 24 Flange°
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GAZ 24°
The French Metric (GAZ) male will mate with
the female 24° cone or the female tube fitting.
The male has a 24° seat and straight metric
threads. The female has a 24° seat or a tubing sleeve
and straight metric threads.
When measuring the flare angle with the seat
angle gauge, use the 12° gauge. (The seat angle gauge
measures the angle from the connector centerline.)
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Metric
Thread Size
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Male Thread
O.D. (mm)
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Female
Thread I.D.
(in)
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Tube
O.D.
(mm)
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M20x1.5
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20.0
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18.5
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13.25
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M24x1.5
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24.0
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22.5
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16.75
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M30x1.5
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30.0
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28.5
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21.25
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M36x1.5
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36.0
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34.5
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26.75
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M45x1.5
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45.0
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43.5
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33.50
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M52x1.5
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52.0
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50.5
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42.25
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French Metric (GAZ)
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GAZ Poclain 24° Flange
The Poclain (French GAZ) 24° high pressure flange is
usually found on Poclain equipment.
The male flange will mate with a female flange or a port.
The seal is made on the 24° seat.
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Nominal Size
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A
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B
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C
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D
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E
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F
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(in)
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(in)
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(in)
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(in)
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(in)
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(in)
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(in)
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1/2
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1.57
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.72
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2.20
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1.89
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.55
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.35
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5/8
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1.57
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.72
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2.20
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1.89
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.55
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.35
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3/4
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2.00
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.94
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2.75
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2.38
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.71
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.43
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Poclain (French GAZ)
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This page last modified on Tuesday, May 13, 2008.
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Phone: (315) 451-2770 ext. 365
Fax: (315) 234-6460
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NOTE:
The product
data on the web site is based on catalog information
from the manufacturer.
JGB is not
responsible for any errors or changes to that data
made by the manufacturer.
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