Groeneveld OnePlus - Group the Grease Points; Determine the Layout of the System

Automatic Greasing System OnePlus
Designing a system
23
Date of issue: October 2011
EG1605R01
3.3.4 Group the grease points
Compile groups of grease points, taking account of the following:
• 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.
3.3.5 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 (
excluding the
main distribution block!
).
This value can be used in a later stage to determine the grease output of the pump.
System without a main distribution block
• The determined values may be used to calculate the required grease output
of the pump.
Determine the lengths of the primary grease line between the pump unit and the
distribution block and the lengths of the secondary grease lines between the distri-
bution block and the grease points. Note those lengths on the greasing plan. De-
termine the number of non-return valves that must be incorporated into the
greasing system.