52
Shutdown
procedure
This procedure SHOULD BE CARRIED OUT BY AUTHORIZED AND QUALIFIED
PERSONNEL
OPERATOR PROTECTION
Use safety equipment according to the company regulations.
Use this safety equipment within the work area during installation, service and
when handling chemicals:
• protective mask
• protective gloves
• safety goggles
• ear plugs or hear muffs
• further security device, if necessary.
Shutdown the dosing pump before any maintenance operation or before long downtimes.
Disconnect power and ensure it cannot be restarted.
Depressurize the system. The liquid may leak splashing.
Drain the chemical from pump head.
Release the pressure and disconnect the disharge pipe from the venting valve.
Rinse the pump head and clean all valves.
f the pump performance does not satisfy your process requirements, and the process requirements
have not changed, then perform these steps:
1. Disassemble the pump.
2. Inspect it.
3. Replace worn parts.
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