Watson-Marlow Qdos30 Universal - Manual (Page 2)

EN
2 Watson-Marlow qdos30 pumps product safety information
1.1 In the event of lubricant incompatibility
Should you find that you are pumping a chemical that is incompatible with the lubricant in your ReNu
pumphead, follow the procedure below to immediately discontinue the use of the ReNu pumphead.
1. Follow best practice when dealing with chemicals. This includes wearing Personal Protective Equipment
(PPE) and ensuring that incompatible chemicals are isolated.
2. Check that the pumphead expired message is not displayed.
3. Stop the pump.
4. Use the pump to flush the pumphead with an inert fluid appropriate for the chemical being pumped.
5. Dispose of the pumphead according to local regulations for contaminated items and health and safety
procedures.
6. If the pumphead expired message is displayed the pumphead must be left on the drive for a period
of at least 30 minutes, after which it must be flushed with an inert fluid appropriate for the chemical
being pumped before being removed. Dispose of the pumphead according to local regulations for
contaminated items and health and safety procedures.
1.2 Clean-up in the event of fluid spill through the
overflow port
A mixture of the process fluid and lubricant can be released to the environment through the overflow port
on the pumphead. If this occurs, please follow the procedure below:
1. Absorb as much of the lubricant as possible and dispose, according to regulations.
2. Apply a degreaser such as Citrol or similar to the residue, according to label instructions.
Always ensure that any cleaning product is compatible with both your process fluid and the relevant
lubricant. The silicone oil creates a thin slippery film and requires more careful degreasing than the glycerol
based lubricant.
2 Good pump installation practice
2.1 General recommendations
Always consult an expert before installing a metering pump in a specialised system.
Metering pumps should be maintained by qualified persons.
It is recommended that the pump is bolted to a flat, horizontal, rigid surface, free from excessive vibration,
to ensure correct lubrication of the gearbox and correct pumphead operation. Allow a free flow of air around
the pump to ensure that heat can be dissipated. Ensure that the ambient temperature around the pump
does not exceed 45C (113F).
The STOP key on pumps supplied with a keypad will always stop the pump. However, it is recommended
that a suitable local emergency stop device is fitted into the mains supply to the pump.
Do not stack pumps.
This pump is self-priming and self-sealing against backflow. No valves are required in inlet or discharge
lines, except as described below. Valves in the process flow must be opened before the pump operates.
Users must fit a non-return valve between the pump and the discharge pipework to
avoid the sudden release of pressurised fluid in the event of a pumphead failure. This
shall be fitted immediately after the discharge of the pump.