Pneumatic diaphragm valve DIASTAR
Diaphragm wears out prematurely
White discoloration on the housing nut
9
Accessories and Spare Parts
CAUTION!
Do not make any changes to the product!
Material damage and/or risk of injury due to modifications to the product or incompatible spare parts.
► Secure the system/device against unintentional operation.
► Do not use defective spare parts.
CAUTION!
Incorrect spare parts!
When replacing, only original Georg Fischer Piping Systems spare parts intended for the valve type may be used.
► Use only original spare parts from Georg Fischer Piping Systems with the specifications according to the type plate.
9.1
Accessories
Electrical position indicator with switch types AgNi and Au
•
Conversion to pressure safe housing
•
Strap wrench
•
Pressure solenoid valve: Type PV94/95, MNL532, 5470
•
10
Disposal
► Before disposing of the different materials, separate them into recyclables, normal waste and special waste.
► Comply with local legal regulations and provisions when recycling or disposing of the product, the individual components and
the packaging.
► Observe country-specific regulations, standards and guidelines.
WARNING!
Contaminated components!
Parts of the product may be contaminated with medium that are harmful to health and the environment meaning that simple cleaning
is not sufficient! Risk of personal injury and damage to the environment caused by these medium. Before disposing of the product:
► Collect leaking medium and dispose of in accordance with local regulations.
► Consult the safety data sheet of the medium used.
► Neutralize any medium residues in the product.
► Separation and disposal of materials (plastics, metals, etc.) according to local regulations.
38
Control pressure too high
Function and connections for control
medium do not match
Actuator not selected to match medium
pressure
Dirty vent hole
Chemical damage
Operating Instructions
► Select the control pressure accor-
ding to the corresponding control
pressure diagram.
► Check the (FC, FO, DA) functions and
related connections.
► Select suitable drive type.
► Check and clean the vent hole on the
top part.
► Immediate diaphragm replacement
and all worn components under all
specified safety procedures.