Prominent Solenoid Metering Pump Gamma/ XL NPE2 1612

Replace the liquid end diaphragm

Unscrew the diaphragm rupture indicator using an AF 14 open-ended spanner

Clean the diaphragm rupture indicator with suitable liquid, preferably water

Fully immerse the tapered section at the front in water to test the diaphragm rupture indicator

Does the continuous display indicate a diaphragm rupture?

Ensure all spare parts are available

Install the new vPTFE diaphragm

Valve and Connector Installation

Read the safety information and specifications in the 'Storage, Transport and Unpacking' chapter.

Disconnect the pump from the mains power supply.

Ensure the system is at atmospheric pressure before commencing work on hydraulic parts.

Are original spare parts being used?

Is the correct spare parts kit being used?

Check the diaphragm for damage.

Read the safety information and specifications in the 'Storage, Transport and Unpacking' chapter.

Disconnect the pump from the mains power supply.

Ensure the system is at atmospheric pressure before commencing work.

Check that all hydraulic components are secure and leak-tight

Is the flow correct after pressing [Priming]?

Electrical and Structural Integrity

Check the integrity of electrical and structural components

Enter the order no. (part number) of the diaphragm or spare parts kit

Take protective measures, if necessary

Note the material safety data sheet for the feed chemical

Prevent the escape of feed chemical

Ensure that the system is at atmospheric pressure

Empty the liquid end by turning it upside down and allowing the feed chemical to run out

Flush out with a suitable medium