Wilden Pump and Engineering
AODD pumps in three different materials of construction
Introduced last October, the PS220/230 FIT 25 mm (1 in.) metal air-operated double-diaphragm (AODD) pumps (photo) is equipped with the energy-efficient Pro-Flo SHIFT Air Distribution System (ADS), and available in three wetted-path materials of construction — aluminum, stainless steel and ductile iron. The new PS220/230 FIT pumps feature bolted product containment, easier maintenance and efficient operations. These pumps are shear sensitive and intrinsically safe with self-priming and dry-run capabilities, and offer the longest mean time between repair (MTBR), superior anti-freezing and increased on/off reliability. They are available with maximum discharge pressures to 8.6 bars, maximum flowrates to 254 L/min and maximum suction lifts to 6.9 m dry (9.0 m wet). — Wilden Pump and Engineering, Grand Terrace, Calif.