EATON
DGM**-5 30 Design E-VLST-BB002-E April 2015
N-37
N
Bolt Extender Kits
ISO 4401-05 SystemStak valves may be mounted with either
standard cap screws or bolt extender kits.
Metric cap screws must be of Class 12,9 (ISO 898) strength,
minimum U.T.S. = 1200 MPa.
Inch threaded screws must conform to ANSI B18.3.
The use of Eaton bolt extenders simplifies installation by
permitting each valve body to be separately installed with the
correct torque value. A major advantage of bolt extenders
is the ability to remove the directional valve for service or
replacement without disturbing the stack assembly. There are
4 bolt extenders per kit.
Bolt extender cross section
Example of bolt extenders on a typical SystemStak assembly
SystemStak
Valve Height
Metric
Inch
Extender Torque
mm (inch)
Thread
Kit Model Number
Thread
Kit Model Number
50 (1.97)
M6 x 1-6H
BKE-6M-50M
.2500-20 UNC
BKE-4-50M
11,3-14,7 Nm (100-130 lbf in)
60 (2.36)
M6 x 1-6H
BKE-6M-60M
.2500-20 UNC
BKE-4-60M
Directional
Valve
60
(2.36)
SystemStak Valve
50
(1.97)
SystemStak Valve
Manifold Block
M6 x 1 or
.2500-20 thread
Bolt Extender
4,0 (
5
/
32
” ) hex
socket for
tightening
Standard
socket head
cap screw
Bolt extender
kit
BKE-6M-60M or
BKE-4-60M
Bolt extender
kit
BKE-6M-50M or
BKE-4-50M
12 (0.47) minimum
thread engagement
4 (
5
/
32
” )
hex
socket
4 (
5
/
32
” )
hex
socket