HaquanPump & Valve
QBY Diaphragm Pump – Spare Parts and Replacement Intervals — QBY AODD Pump
QBY AODD Pump

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…

Specifications
Flow Rate0-30m³/h
Head0 – 50 / 70m
PowerkW
Inlet / Outlet Diameter10 – 100mm
MaterialPP Engineering Plastic, Aluminum Alloy, Cast Iron, Stainless Steel

Product Overview

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

PartInterval (Normal Duty)Interval (Abrasive Duty)
Diaphragms12 months6 months
Ball Valves12 months6 months
Valve Seats12 months6 months
GasketsAs neededAs needed
Air Valve Components24 months12 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.

Typical Applications

  • pump maintenance
  • spare parts management
  • diaphragm replacement
  • valve replacement
  • preventive maintenance
  • industrial pump service

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