KNF diaphragm pump servicing and spares
Ask Girovac about service, repair and spare-part requirements for KNF vacuum pumps. Include the complete model code so the pump’s materials and configuration can be identified.

Know the equipment before choosing the part
KNF is known for diaphragm pump technology and laboratory vacuum equipment, including LABOPORT systems. Pump variants can differ in wetted materials and intended duty; the full reference matters when discussing chemical compatibility or replacement parts.
Make your enquiry specific
Tell us which gases or vapours the pump handles and whether it is part of an instrument or laboratory system. Include the existing diaphragm, valve or service-kit reference where known.
KNF repair enquiry · Diaphragms and parts enquiries · Compare vacuum equipment
KNF questions and answers
Why do you need the full KNF model code?
Model suffixes can identify differences in configuration and materials. A partial reference may not be sufficient to select compatible diaphragms, valves or other maintenance items.
Are all KNF diaphragm pumps suitable for solvent vapours?
Suitability must be checked for the exact model, chemicals and operating conditions. Do not assume that every diaphragm pump has the same chemical resistance.
What should I send for a KNF repair enquiry?
Include the nameplate, process details and symptoms such as reduced vacuum, unusual noise or leakage. State whether the pump is standalone or fitted inside another machine.
Send us your KNF model details
Include the model, serial number and a nameplate photograph, together with your application or fault symptoms. Tell us the quantity or timescale if you are asking about parts or replacement equipment.

