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7
Pressure setting
Maintenance intervals depend on the operating conditions and must be determined by
the operator. If deviations from the normal condition are detected during maintenance
(e.g. leakages, incorrect pressure control, noises, etc.), the valve must be replaced
immediately or professionally repaired, in order to ensure continued safe operation.
Repairs to shut-off valves, non-return valves or dirt traps must be performed only by
Goetze KG Armaturen or by authorised specialist workshops, using only genuine
spare parts. Makeshift repairs of any kind are not permitted!
Type 2140/2180
Fault
Leak from the
spindle
Leak between
upper section and
housing
Leak from the seat
Valve does not
open / close
Assembly and maintenance instructions - 2140 / 2180 / 2142 / 2182 / 2143 / 2183 | Version: 06/2023 · V02
Possible cause
•
Spindle seal leaky
•
Gland nut loose
•
Gland packing defective
•
Fitting / surface of spindle damaged
•
Valve upper section loose
•
Seal damaged
•
Foreign bodies between the disc
and seat
•
Seat damaged
•
Cone assembly seal damaged
•
Thread stuck, damaged
•
Handwheel defective, damaged
Solution
Remove the screw (pos. 8)
Remove the handwheel (pos. 9)
Undo the lock nut (pos. 10)
Retighten the gland nut (pos. 11)
Tighten the lock nut (pos. 10)
Mount handwheel (pos. 9)
Attention: Make sure the wedge lock
washer is in the correct position. Pair
the wedge lock washer so that the
• radial ribs point to the outside
and the
• wedge surfaces point to the
inside.
Tighten the screw (pos. 8)
Torque DN10-25 (M5) = 6.5 Nm,
DN32-50 (M8) = 22 Nm
Replace the gland packing
Replace upper section
Tighten the screws to the specified
tightening torque
Replace the seal
Remove foreign bodies, flush and
clean system
Replace housing
Replace seal
(together with cone, if necessary)
Replace housing
Replace spindle + handwheel
radial ribs
wedge surfaces
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