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8 Maintenance
8.1 Maintenance Plan
The maintenance regulations of the system manufacturer must be observed. The following sections describe the
maintenance work required for optimal and trouble-free operation of the device.
If increased wear is detected during regular inspections, the required
maintenance intervals must be shortened in accordance with the actual wear.
For any questions on maintenance work and intervals, please contact the manufacturer.
The intervals for monitoring and maintenance work are strongly dependent on the
operating situation and the condition of the gas. This is why no fixed intervals
can be given. For Germany, it is recommended that the maintenance periods as specified in DVGW work sheet G 495 are
observed initially. For each system, this must be followed by
determining the maintenance interval independently on a medium-term basis.
During maintenance work, the components must be cleaned and subjected to a thorough visual inspection. This is also
necessary if irregularities in the operating behavior have been detected during operation or during functional tests.
The check must cover the elastomers in particular.
Damaged parts and O-rings dismounted during dismantling must be replaced with new ones.
It is recommended to stock the parts listed in chapter 11.3 on page 23 for maintenance work.
Interval Maintenance work Personnel
According to the
data given in the
DVGW work sheet G
495 or if necessary
Replacing O-rings
Qualified person
Replacing diaphragms
Replacing the valve plate
Replacing sealing rings for the connections of the breather lines and
measuring lines
8.2 Maintenance Procedure
The maintenance procedure is described in detail step-by-step in our video tutorial and our pictorial descriptions.
Instructions for our products can be found in the download area of our website. Should you have any problems, please
feel free to contact us directly.
If components have been removed, make sure they are mounted correctly, reinstall all fastening
elements and observe the screw tightening torques.
Prior to recommissioning, observe the following:
• Make sure that all maintenance work has been carried out and completed in accordance
with the data and information given in these instructions.
• Make sure that no unauthorized persons stay in the danger zone.
• Make sure that all covers and safety devices have been installed and are working properly.
For recommissioning, please refer to the relevant manufacturer's documentation of the
gas pressure regulator installed in the system, the work instructions of the system operator, and the other
safety regulations of the system in which the gas pressure regulator has been installed.
To guarantee smooth operation, we recommend always keeping a maintenance set in reserve.
ATTENTION
DANGER
Note
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