6661B4-444-C

6661B4-444-C

Features

• Robust construction with thick walled injection, molded fluid casings and cast iron or aluminum center sections to withstand tough industrial applications.
• Efficiency – Motor design delivers optimum air efficiency
• Reliability – ARO’s patented ‘Unbalanced’ air valve ensures no-stall operation
• Versatility – Multiple porting options for your application needs – Available in Flanged, Threaded, or 3 piece Manifold configurations
• Environmentally Sound – Bolted construction for leak-free fluid handling
• Serviceability – Easy access to ball checks and fluid caps for maintenance and repairs

Accessories

• 637161-XX-C Fluid Section Service Kit
• 637118-C Air Section Service Kit
• 66073-2 Air Line Connection Kit: contains Piggyback Filter / Regulator, pipe nipple & 5′ section of hose
• 67078 Flange Connection Kit: converts connection to N.P.T.F. threading configuration
• 67072 Count Down Batcher
• 66975 Cycle Counter Kit

Weight	16.78 kg
Size	1''
Centre	Cast Iron
Hardware	Stainless Steel
Thread	Centre Flanged
Wetted	PVDF
Diaphragm	PTFE
Ball	PTFE
Seat	PVDF
Air Kit	637118-C
Wet Kit	637161-44

Ratio: 1:1 Maximum Flow: 47 GPM (177.9 LPM) Displacement per cycle: Standard Diaphragm 0.17 gallons (0.64 liters) PTFE Composite Diaphragm 0.14 gallons (0.525 liters) Air Inlet: (Female) 1/4-18 NPTF Fluid Inlet/Outlet: 1- 11-1/2 NPTF -1 1 - 11 BS Rp 1” ANSI / DIN Flange Max. operating pressure: 120 psi (8.3 bar) Suspended solids max. dia.: 1/8” dia. (3.2 mm) Weight: 6661A3-, 1AF-, 1AJ-, 1AL- 20.25 lbs (9.19 kgs) 6661AP-, 1AR-, 1AS-, 1AT- 20.25 lbs (9.19 kgs) 6661A4-, 1AG-, 1AK-, 1AN- 28.5 lbs (12.93 kgs) 6661B3-, 1BF-, 1BJ-, 1BL- 28.8 lbs (13.06 kgs 6661BP-, 1BR-, 1BS-, 1BT- 28.8 lbs (13.06 kgs) 6661B4-, 1BG-, 1BK-, 1BN- 37 lbs (16.78 kgs) Note: Add 23 lbs (10.4 kgs) for cast iron air motor section. Maximum dry suction lift: 15 ft (4.6 m) Sound Level: 70 PSI (4.8 bar) 60 Cycles/Min64.5 db(A)