Technical Data - SKF 721740 A Instrucciones De Uso

3. Technical data

Maximum working pressure
Outer diameter
Inner diameter
Minimum bending radius
Designation Dimensions
G
in G in G mm in.
721740 A
1/8
227957 A*
1/4
227958 A*
3/4
1020612 A**
1/4
728017 A
1/4
* These pipes are also available in a
400 MPa execution.
Designations are 227957 A/400MP
and 227958 A/400MP. Outer diameter
of the pipe is 6 mm (0.24 in.).
** Maximum working pressure 400 MPa
(58 000 psi). Outer diameter of the
pipe 6 mm (0.24 in.). Minimum bending
radius 100 mm (4 in.).
Maximum tightening torque (Mt)
Nipple max torque
thread
G 3/4
G 1/4
G 1/8
On request pipes can be delivered in any
length between 300 mm (12 in.) and
4 000 mm (157 in.).
High pressure pipes are marked with their maximum working pressure e.g. MAX 400MPa.
6
G1 A A A
1
mm in.
3/4 11,5 0.45 36,9 1.45 7,94 0.31 15,88 0.63 1 000 39
3/4 17,3 0.68 36,9 1.45 11,11 0.44 15,88 0.63 2 000 78
3/4 36,9 1.45 36,9 1.45 15,88 0.63 15,88 0.63 2 000 78
1/4 17,3 0.68 17,3 0.68 11,11 0.44 11,11 0.44 1 000 39
1/4 17,3 0.68 17,3 0.68 11,11 0.44 7,94 0.31 300
max torque
(Nm) (lb.ft)
130 96
37 27
13 9.5
300 MPa (43 500 psi)
4 mm (0.16 in.)
1,6 mm (0.063 in.)
100 mm (4 in.)
A D D D
1 w w w1
mm in. mm in.
Weight
D L L kg
w1
mm in.
0,3
0,4
0,6
0,5
12 0,2
A
G
D
w
L
D
w1
G
1
A
1
SKF High Pressure Pipes
lb
0.7
0.9
1.3
1.1
0.4