KNF Diaphragm Laboratory Pump NF1.100TT.18S

Check tightening torque of head screws

Is the pump in perfect working order?

Is the pump operated in accordance with the technical data?

Check the discharge outlet for leaks

Place the pump in a suitable collecting vessel

Check the discharge outlet regularly for leaks

Ensure the discharge outlet is never closed

If medium escapes from the pump's discharge outlet, stop using the pump and contact your KNF dealer

If the pump diaphragm ruptures, the transferred medium is channelled out of the pump through the discharge outlet

Check tightening torque of head screws regularly

Check that pump and system are leak-tight

Cleaning / replacing valve plates and pump diaphragm

Ensure all required tools are available

Verify maximum tightening torque

9.5 Checking that pump is leak-tight

Ensure parts in contact with fluid are designed for operating pressure

Set up the system as shown in Fig. 27

Use distilled water as a test medium

Set pressure control valve to working pressure

Ensure fitting is leak-tight (see Section 6.2.2)

Operate pump carefully for 5 minutes

Are there any traces of medium visible on the head?

9.4 Cleaning / Replacing Valve Plates and Pump Diaphragm

Ensure cleanliness during maintenance

Check that pump and system are leak-tight after maintenance

Requirements before maintenance