Designing a system
38
Da
te of
is
sue :
Sept
ember
2012
Automatic Greasing System
TriPlus Trailer
F212157R02
4.3.4
Group the grease points
Compile groups of grease points, taking account of the following:
•
A main distribution block or multiple grease output ports on the TriPlus pump may be
utilised.
•
The maximum and minimum number of doser segments that can be combined in a single
distribution block.
•
The lengths of the primary and secondary lines in relation with the NLGI class of grease that
must be used and the projected operating temperatures.
•
Any special demands that might be placed on the grease output and the greasing interval.
4.3.5
Determine the layout of the system
Note the positions of the pump unit and the distribution blocks on the greasing plan. Determine
the required composition of the distribution blocks, based on the group of grease points to be
connected with that block. Indicate the routing of the grease lines on the greasing plan. Take
account of:
•
The routing of the lines and the type of secondary grease lines that will be used (single or
composite lines with 2 to 3 seperate lines).
•
The possibility to combine outputs of doser segments.
•
The minimum (3) and maximum (12) number of doser segments that can be combined in a
single distribution block.
Calculate the grease demand of the whole distribution block per whole cycle of the distribution
block (the sum of all rated grease outputs of all doser segments in the block).
System featuring a main distribution block
Determine the composition of the main distribution block by:
•
Determining the ratios of the grease demands of the distribution blocks to be connected to
the main distribution block.
•
Selecting segment types for the main distribution block with which those ratios are most
precisely matched.
•
Determining the required grease output of the pump unit. This is the sum of the grease
demands of all distribution blocks connected with that output port (
excluding the main
distribution block!
).
This value can be used in a later stage to determine the grease output of that output port of the
pump unit.
System without a main distribution block
•
The determined values may be used to calculate the required grease output port of the
pump unit.
Determine the lengths of the primary grease lines between the pump unit and the distribution
blocks (between the distribution blocks) and the lengths of the secondary grease lines between the
distribution blocks and the grease points. Note those lengths on the greasing plan. Determine the
number of non-return valves that must be incorporated into the greasing system.