Troubleshooting - Gestra Rk Serie Originalbetriebsanleitung

Troubleshooting

Comment Cause
The equipment is in an unstable
Loud noise flow rate range and the valve disk
is oscillating.
The equipment is contaminated
Leakage around
with deposits around the seat/valve
the seat (equip-
disk. The closing spring is broken
ment does not
or worn. The seat or valve disk is
close)
damaged.
Fluid escapes
A seal is worn
from the
or damaged.
equipment
Action
Increase the flow rate by increasing
the pump output.
If the direction of flow is upward,
remove the closing spring.
Use equipment of a smaller nominal
size.
Check the condition of the
equipment.
Clean the sealing surfaces of the
equipment. Replace damaged
equipment.
Check the condition of the seals.
Replace damaged seals.
EN