Product Catalog
Dosing Pumps and Spare Parts
Precise dosing, precise wear parts — diaphragms, valves and seals.
Common problems
| Symptom | Likely cause | Check first |
|---|---|---|
| Not pumping at all | Air in intake, blocked valve | Air bleed, intake line |
| Flow rate dropped | Worn diaphragm, valve leak | Diaphragm and valve set |
| Inconsistent dosing | Intake leak, back-pressure change | Intake seal, setting check |
| Chemical leaking from body | Torn diaphragm | Urgent diaphragm change |
Frequently asked questions
My dosing pump is dosing inconsistently — why?
Three usual causes: air in the intake line, a fatigued diaphragm, and leaking intake/discharge valves — check in that order.
Are dosing pump spare parts available?
Yes — diaphragms, valve sets and sealing elements are our most common items. Non-standard elements can be manufactured through our own sealing workshop.
What information do you need to select a pump?
Three essentials: the chemical's identity and concentration, required flow rate, and the line's back-pressure — chemical compatibility is critical.
Chemical is leaking from the pump body — what do I do?
This indicates a torn diaphragm and needs urgent attention. Stop the pump — if chemical reaches the drive side, damage is far more extensive. Diaphragm replacement is a quick fix.

