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Hose Products Division
Parker Hannifn Corporation
Wickliffe, Ohio
Technical
Catalog 4400 US
Flange Fittings
Code 61 and Code 62
The 4-bolt split fange (or full
fange) ftting is used worldwide
for connecting high-pressure
hoses typically to pumps, motors
and cylinders, where the hose
assemblies are subjected to
large pressure loadings.
The sealing mechanism is
through compression of the
O-ring in the face of the fange
head against the surface of the
port/connection.
The fange fttings are gener-
ally separated into two pressure
classes referred to as
3000 psi (SFL) or 6000 psi
(SFS).
ISO 12151-3 refers to the fange
fttings as code 61 for the 3000
psi and code 62 for the 6000 psi.
In addition to these fanges,
customer-specifc Komatsu
®
and
CATERPILLAR
®
fanges can also
be found in the market.
Parker end confgurations
Code 61 (3000 psi)
15, 16, 17, 19, P5, P7, P9
5000 psi (Code 61 dimensions)
4A, 4F, 4N
Code 62 (6000 psi)
6A, 6F, 6N, PA, PF, PN, 89
Caterpillar fange
XA, XF, XG, XN
• Standard Code 61 for
3000 to 5000 psi max.,depending on size
• High Pressure Code 62
for 6000 psi max. regardless of size
Although not in the SAE or the
ISO standard the size -10 (5/8)
fange head is gaining popularity.
This fange is often found on
Komatsu equipment or hydrostatic
drives in agricultural machines.
Note: 5000 psi in size -20/-24/-32 with 4A,4F
and 4N fttings and 50H fange halves.
Flange
(inch)
Size Code 61
MPa / psi
Code 62
MPa / psi
1/2
-8 34.5 / 5000 41.3 / 6000
3/4
-12 34.5 / 5000 41.3 / 6000
1
-16 34.5 / 5000 41.3 / 6000
1-1/4 -20 27.5 / 4000 41.3 / 6000
1-1/2 -24 20.7 / 3000 41.3 / 6000
2
-32 20.7 / 3000 41.3 / 6000
CATERPILLAR
®
Code 61 – SAE – 3000 psi
Flange
(inch)
Size ØA
(mm)
B
(mm)
O-Ring
1/2
-8 30.18
6.73 18.64x3.53
3/4
-12 38.10
6.73 24.99x3.53
1
-16 44.45
8.00 32.92x3.53
1-1/4 -20 50.80
8.00 37.69x3.53
1-1/2 -24 60.33
8.00 47.22x3.53
2
-32 71.42
9.53 56.74x3.53
2-1/2 -40 84.12
9.53 69.44x3.53
3
-48 101.60
9.53 85.32x3.53
Code 62 – SAE – 6000 psi
Flange
(inch)
Size ØA
(mm)
B
(mm)
O-Ring
1/2
-8 31.75
7.75 18.64x3.53
3/4
-12 41.28
8.76 24.99x3.53
1
-16 47.63
9.53 32.92x3.53
1-1/4 -20 53.98
10.29 37.69x3.53
1-1/2 -24 63.50
12.57 47.22x3.53
2
-32 79.38
12.57 56.74x3.53
Flange
(inch)
Size ØA
(mm)
B
(mm)
O-Ring
3/4
-12 41.28
14.22 25.40x5.00
1
-16 47.63
14.22 31.90x5.00
1-1/4 -20 53.98
14.22 38.20x5.00
1-1/2 -24 63.50
14.22 44.70x5.00
Flange
(inch)
Size ØA
(mm)
B
(mm)
O-Ring
5/8
-10 34.25
6.00
21.7x3.5
Komatsu
®