Prominent Solenoid Metering Pump Gamma/ XL 1612

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

Turn the liquid end upside down and allow the feed chemical to run out

Flush out with a suitable medium

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 (polysulphone material)

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

Does the continuous display indicate a diaphragm rupture?

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.

Check the diaphragm for damage.

Is the diaphragm under normal loading conditions?

Is the diaphragm under heavy-duty loading conditions?

Check the metering diaphragm more frequently if using feed chemicals with abrasive additives.

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.

Inspection of Hydraulic Components

Check that the following components are fixed firmly to the liquid end

Check that the following valves are fitted tightly

Check that the entire liquid end is leak-tight, particularly around the leakage hole.

Check the discharge and bypass line for kinks.