7. INSTALLATION
7�1
Safety instructions for installation
Î
Check the information provided in these operating instructions and the label on the
WEH
®
Product. The information must conform to your application.
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Only connect the WEH
®
Product to faultless connections.
Î
Check the WEH
®
Product for transport damages, contamination and other damage. If
you should detect anything wrong with the WEH
®
Product, it may no longer be used.
Replace the WEH
®
Product or send it to WEH for maintenance.
Î
Remove transport securing devices (such as protection caps) before installing the
WEH
®
Product. Transport securing devices serve the purpose of protecting the
product and connection ports during transport and storage. The transport securing
devices are not, for example, designed to withstand pressure or to be used as plugs.
Î
Ensure that the system is depressurized. Installation must only be effected in
depressurized condition.
Î
Avoid using excessively short media lines and narrow bending radii. Lateral forces
may cause leakages or damage to components and make it more difficult to attach
the WEH
®
Connector properly.
Î
Use arrestor cables, partitions, etc. for additional safety where being used for
hazardous applications or under hazardous conditions.
Î
USIT rings should be used to seal the ports.
Î
Prior to installation, check that the counterparts are designed in accordance with the
assembly data (see
Chapter 7.2 Installation of media line and pilot pressure line
) speci-
fied for the WEH
®
Product by WEH.
Note:
The indicated assembly data (tightening torques, assembly turns etc.) are values
that apply only to the components delivered by WEH.
Î
Connect the WEH
®
Connector to a suitable securing device (mechanical connection
via cylinder, rigid fixture, or other means) at the mounting bores “G” on the bottom of
the connector (or other secure fixture) so that the connector is securely connected
to the test piece when pressurized and can not come loose.
For the tightening torque please refer to the table
Chapter 7.2 Installation of media
line and pilot pressure line on page 15
Caution:
The safety device must be designed to withstand the loosening force that
occurs (plus an appropriate safety tolerance).
Example of the loosening force:
The test piece has an inner diameter of
1/2” (= 12.7 mm) and is tested at a maximum of 5 bar.
Loosening force* = pressure x area
0.5 N/mm
2
x 12.7
2
x n : 4 = 63.33 N
(* without consideration of friction forces)
MD-10320-L51-R1.0.0-03
Page 14
Operating instructions
AE
