QBY Diaphragm Pump – Spare Parts and Replacement Intervals
Parts That WearThe QBY has only a few wearing parts. This keeps maintenance simple and affordable. The main items are diaphragms, ball valves, and valve seats. Recommended Replacement Schedule Part In…
Parts That Wear The QBY has only a few wearing parts. This keeps maintenance simple and affordable. The main items are diaphragms, ball valves, and valve seats.
Recommended Replacement Schedule
Part
Interval (Normal Duty)
Interval (Abrasive Duty)
Diaphragms
12 months
6 months
Ball Valves
12 months
6 months
Valve Seats
12 months
6 months
Gaskets
As needed
As needed
Air Valve Components
24 months
12 months
Signs of Wear
Reduced flow rate
Irregular pumping action
Air bubbles in discharge
Leakage from air exhaust
Stocking Recommendation Keep one set of diaphragms, ball valves, and seats for each pump size. This covers most emergency repairs.
Applications Summary: pump maintenance, spare parts management, diaphragm replacement, valve replacement, preventive maintenance, industrial pump service
Thanks for visiting HAQUANPUMP. We stock full spare parts kits for all QBY diaphragm pump sizes. Contact us for parts orders.
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