Products Description
The QBY Air‑Operated Double Diaphragm Pump is a pneumatic transfer pump designed for safe handling of corrosive, abrasive and hard‑to‑pump media. Its full‑plastic construction offers excellent chemical resistance, suitable for chemical, electroplating, wastewater treatment and industrial fluid transfer applications.
With flow rates from 0.8 to 30 m³/h and heads from 0 to 50 m, the pump can be adjusted to match different site working conditions. Multiple material options for diaphragms and valve balls are available to suit various liquid mediums, and it can run dry without damage. Different port connection types can be supplied to meet project requirements.
Each pump is strictly inspected before delivery. Technical data sheets, dimension drawings and professional selection guidance can be offered for your project reference.
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Strong chemical resistance
Full‑plastic pump body effectively handles various corrosive chemicals, avoiding corrosion damage for long‑term service life.
Self‑priming & dry‑run capability
No need for priming before start‑up. The pump can run dry without damage when liquid supply is interrupted.
Safe pneumatic drive
Air‑powered design, no electric motor. Safe for flammable and explosive working environments.
Easy flow‑pressure adjustment
Output performance can be simply changed by adjusting air pressure, flexible to match different process conditions.
Simple structure & low maintenance
Few wearing parts, easy disassembly and repair. Diaphragm and ball valve spare parts are easy to replace.
Handles medium with particles
Able to transport liquid containing fine solid particles, suitable for wastewater and slurry transfer scenarios.
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