ARO PRO Series Double Diaphragm Pump – 1″, Stainless Steel/PTFE, ATEX

Part numbers:

• ARO Part No: 15-81664708 
• ARO Code: 66612B-244-C 
• Flux Code: FDM 25 SS/TT 
• Flux Part No.: 10-M2520100 

Flux Pumps equivalent:

ARO PRO Series Double Diaphragm Pump – 1″, Stainless Steel/PTFE, ATEX key features:

• 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. 

Reduced diaphragm wear

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: 

• Petrochemical processing and dosing 

• Fluid handling on mining & construction sites 

• Tank transfer and IBC emptying 

• Solvent and fuel pumping 

• Effluent and wastewater applications 

*This pump is also a direct equivalent to the Flux FDM 25 SS/TT—offering identical performance with ATEX safety certification. 

Learn more about the ARO PRO Series  

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