ARO PRO Double Diaphragm Pump, 1″ SS/PTFE | ATEX Certified

Boost productivity with the rugged and reliable ARO PRO Series 1″ double diaphragm pump, built to handle tough industrial conditions and also aggressive chemicals. With a maximum flow of 133 LPM (35 GPM), this pump is consequently the go-to choice for heavy-duty fluid transfer across mining, chemical, petrochemical and process industries. With 316 stainless steel manifolds, aluminium centre body and also PTFE diaphragms and balls, this double diaphragm pump offers optimal chemical resistance and long service life. It’s also ATEX certified, making it suitable for handling flammable liquids in explosive atmospheres.

ARO Part No.: 81664708
ARO Code: 66612B-244-C
Flux Code: FDM 25 SS/TT
Flux Part No.: 10-M2520100

Hardware: Stainless steel

Ex-classification: ATEX – Group II 2GD X

Material construction: Aluminium centre body / 316 stainless steel manifolds / PTFE diaphragms and balls

Connections: 1″ BSP Female (inlet/outlet)

Max flow: 133 LPM (35 GPM)

Displacement per cycle: 0.16 gal (0.60 L)

Maximum operating pressure: 8.3 Bar

Maximum suction lift (dry): 6.1 m

Max suspended solids: 3.2 mm

Sound level: 65 dB(A) @ 70 PSI

Weight: 16.3 kg

Integral muffler for quiet, efficient operation

ARO PRO Series double diaphragm pumps are engineered for superior durability, therefore leveraging ARO’s advanced technologies to provide efficient, reliable, high-performance pumping. Furthermore, these pumps stand out thanks to some unique design features:

The unbalanced D-Valve design optimises airflow, preventing diaphragm stalling and reducing air consumption, thereby improving overall energy efficiency.

ARO’s proprietary SimulShift™ valve ensures faster, smoother trip-over while minimising pulsation, maintaining consistent fluid flow without interruption.

Designed for superior durability, the pump’s wide fluid passages and robust diaphragm construction enable it to handle abrasive chemicals and solids effectively, consequently preventing clogging and stalling even in demanding applications.

Compared to mechanically driven pumps, the AODD (air-operated double diaphragm) pump benefits from reduced diaphragm wear thanks to pressure balance achieved through compressed air. This design minimises stress damage, extending operational life and reducing maintenance, therefore delivering reduced whole-life costs.

Furthermore, for peace of mind, the ARO PRO Series is supported by a 5-year warranty, ensuring long-term value with proven reliability.

This 1″ ARO PRO double diaphragm pump is ideal for: