Series DBY-QBK · Source PDF pages 127–128

DBY / QBK Diaphragm Pump

Diaphragm Pumps

Diaphragm-pump family combining DBY electric diaphragm pumps and QBK pneumatic diaphragm pumps. The catalog emphasizes isolation of pumped medium from moving parts, self-priming capability and suitability for difficult-flowing media.

Suction liftup to 6 m

Delivery liftup to 70 m stated

Max. passing particleup to 10 mm stated

Pneumatic pressure1–8 bar stated

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Catalog-based notes

Applications & selection context

Slurry, mud and impurity-bearing liquids
Toxic, volatile or corrosive media with compatible diaphragm / body materials
Flammable locations for pneumatic QBK where configuration is appropriate
General difficult-transfer applications

Product characteristics

Key features from the supplied manual

No priming water required (catalog statement)
Self-priming suction up to 6 m stated
QBK pneumatic flow / head adjustment by air valve
Multiple diaphragm materials: Buna-N, neoprene, EPDM, Viton, Teflon

Engineering selection: Send flow, head, medium / composition, temperature, density or viscosity, solids content / particle size, required material, motor voltage / frequency and installation conditions. Final model and materials require engineering confirmation.

Original source reference

Catalog technical data

The pages below are rendered directly from the supplied 144-page XINTAO Pump Product Manual so detailed model tables, performance data and original wording remain available without transcription risk. Click any sheet to open it at full size.

Show / hide 2 source sheets · PDF pages 127–128

Catalog PDF page 127

Catalog PDF page 128

If a bilingual wording or numerical statement appears inconsistent in the source manual, use the model table and obtain engineering confirmation rather than relying on a generalized website statement.

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