QBK-40 DN40 44GPM Polypropylene Pneumatic Diaphragm Pump

QBK-40 DN40 polypropylene pneumatic diaphragm pump with a rated flow of 44GPM, driven by compressed air and built for corrosive fluid transfer in industrial lines. The polypropylene body resists acids, caustics, and many aggressive chemicals, making this model suitable for coatings, adhesives, solvents, and general chemical handling. Air operation means no motor and no shaft seal at the pump, so the unit runs safely in flammable environments and tolerates dry running without the damage a sealed pump would suffer. The DN40 port size suits medium-flow transfer duties, and the pump self-primes without priming fluid. Maximum head, air consumption, allowable particle size, temperature limits, diaphragm material options, and available port connections vary by configuration — please contact us for the exact specifications of the version you require.