The valves are equipped with maintenance-free, continuously lubricated stem sealing glands. See Accessories / Spare parts for replacement stem sealing glands.
CAUTION
When servicing valves or actuators:
• Deactivate the pump and turn off the power supply.
• Close the shutoff valves.
• Fully reduce the pressure in the piping system and allow pipes to completely cool down.
If necessary, disconnect the electrical wires.