Operating Manual
PR-050823-0121 Version 161109 8 of 14
Each MannTek product is designed to take reasonable axial loads associated with good handling practice
but is not designed to accept continuous excessive load values associated with maladjustment or poor
installation. Continuous excessive strain will equate to increased component wear and possibly premature
failure if not corrected.
When MannTek equipment is used with hoses, attention should be paid to hose length to ensure correct
handling characteristics. The hose assembly should be designed such that the minimum hose length is
supported by the coupling or the operator. Hoses should be of sufficient length to ensure operation well
within the stipulated hose minimum bend radius up to the maximum operation envelope.
Once all the above elements are satisfactory, a function check should be carried out to prove the system.
The hose unit or coupler should connect and disconnect without physical interference or difficulty. Please
remember that the higher the static pressure, the greater the effort to make a connection.
4.2 I
NSTALLATION
When installing MannTek equipment to new pipe work, tanks, etc. ensure the system is free from debris that
may be transferred through the coupling. Where the hose or loading arm assembly is the primary static
dissipation or earth route, the electrical continuity value of the assembly shall be checked to ensure
regulatory compliance. Special attention should be paid to the balancing of loading arms. It is usual for
loading arm balance settings to account of weight variations due to differences in the full / empty cycle. The
loading arm should be set to balance in the condition present at the time of connection.
Before mounting the DCCoupling ensure that trapped liquid never can occur in the installation.
In combination with a Break-Away or Emergency Release Coupling / Emergency Shut Down
Valve measures shall be taken to ensure that no liquid can be trapped in any operating mode.
Then the DCCoupling can be installed directly in the product line and is ready for use after removing the
transport protection. The installation is as follows:
a. Remove the packaging.
b. Check the coupling for damages before mounting.
c. Ensure that the product line is empty and all valves are closed before you assemble the coupling
into the line.
d. To prevent damages during mounting a suitable wrench should be used for the intended nut flats
on the coupling (threaded connection) or the bolts (flanged connection).
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