BQQE Grundfos Pump Mechanical Seal

What Does BQQE Mean?

BQQE is a four-letter Grundfos shaft-seal code. Each letter describes one part of the seal, and matching all four is what makes a replacement seal fit and last:

So a BQQE Grundfos Pump Mechanical Seal is a rubber bellows seal with silicon-carbide-on-silicon-carbide faces and EPDM elastomer. The Qixing BQQE replicates that exact material configuration, which is why it drops into the same pumps without changing the chemical or temperature compatibility of the original.

Compatible Grundfos Pump Series

The BQQE Grundfos Pump Mechanical Seal code appears across most of the Grundfos vertical multistage range. The table below maps the common pump series to shaft size; for any pump not listed, send the model number and the seal code printed on the pump and Qixing confirms fitment before quotation.

Specifications

Why Buy the Qixing Aftermarket BQQE

Aftermarket replacement seals cost less than genuine spares and ship faster from stock. The Qixing BQQE uses the same SiC/SiC face pairing and EPDM elastomer as the original code, lapped to ≤ 0.0009 mm face flatness, so service life matches the part it replaces. For maintenance teams running fleets of CR pumps, stocking the Qixing BQQE cuts both spare-part cost and lead time.

Applications

• Building services - pressure boosting, HVAC circulation, domestic water supply
• Water treatment - filtration feed, dosing, reverse-osmosis high-pressure feed
• Industrial process - washing systems, boiler feed, machine tool coolant
• Irrigation and agriculture - multistage booster sets
• MRO and pump service shops - aftermarket BQQE replacement stock

Manufacturing

Silicon carbide faces lapped to ≤ 0.0009 mm flatness and verified optically. EPDM elastomer qualified for the original temperature range. Each seal dimension-checked before packing; Certificate of Conformity and material certificate included on request.

Quotation

Send the Grundfos pump model and the seal code printed on the pump for a same-day quotation. Stock sizes ship 3-7 days; custom configurations 15-25 days. Buy the BQQE aftermarket replacement mechanical seal direct from Qixing at OEM and wholesale pricing.

Aftermarket notice: Qixing BQQE seals are aftermarket replacement parts manufactured by Qixing. They are not genuine Grundfos parts, and Qixing is not affiliated with, authorised by, or endorsed by Grundfos. "Grundfos", "CR", "CRI", "CRN", "CM" and "CME" are used only to indicate the pumps these replacement seals are designed to fit.