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Type 2142/2182
Fault
Valve does not
open / close
Type 2143/2183
Fault
Flow value is
not correct
8
Disassembly of the fitting
Hazard warning: Leaking operating medium can lead to burns, poisoning and
irritations; take appropriate measures to prevent any hazards. Be aware that re-
sidue may run off! Suitable and sufficient personal protective equipment must
be worn!
Only qualified persons may remove the valves from the pipe. For this purpose, the
system or system part and the pipe system with the valve must be depressurised.
The operating medium and the fitting must be at ambient temperature. Only remove
the valves from the pipe system when the regulator is defrosted, depressurised and
completely drained. Loosen the pipe connections while holding the spanner flats of the
valve with suitable tools, then remove the fitting from the pipe. When operating with
aggressive and corrosive media, the system must be flushed and ventilated accordingly.
9
Warranty
The valves was tested before leaving the factory. We guarantee our products in that we
will repair parts free of charge upon return, if it can be proven that the parts have become
prematurely unusable due to material or manufacturing defects. We shall not be liable to
pay damages and any other similar obligations. In the event of damage to the factory seal,
improper handling or installation, non-compliance with these assembly, maintenance
and operating instructions, contamination or normal wear and tear, the factory warranty
shall be void.
Assembly and maintenance instructions - 2140 / 2180 / 2142 / 2182 / 2143 / 2183 | Version: 06/2023 · V02
Possible cause
•
Cone guide defective
Possible cause
•
Strainer dirty, mesh size too small
Solution
Replace valve cone / upper section
Solution
Clean/replace strainer or
increase mesh width
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