ARO 6661 A C Series Operator's Manual

ARO 6661 A C Series Operator's Manual

1” diaphragm pump

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OPERATOR'S MANUAL
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE
It is the responsibility of the employer to place this information in the hands of the operator. Keep for future reference.
SERVICE KITS
Refer to the Model Description Chart to match the pump material options.
637118-C for Air Section repair (see page 6).
637161-XX-C for Fluid Section repair (see page 4).
PUMP DATA
Models
. . . . . .
See Model Description Chart for "-XXX".
Pump Type
. . .
Non-Metallic, Air Operated, Double Diaphragm
Material
. . . . . .
See Model Description Chart.
Weight 6661A3-, 1AF-, 1AJ-, 1AL-
6661AP-, 1AR-, 1AS-, 1AT-
6661A4-, 1AG-, 1AK-, 1AN-
6661B3-, 1BF-, 1BJ-, 1BL-
6661BP-, 1BR-, 1BS-, 1BT-
6661B4-, 1BG-, 1BK-, 1BN-
Maximum Air Inlet Pressure
. . . . . . . .
Maximum Material Inlet Pressure
Maximum Outlet Pressure
. . . . . . . . .
Maximum Flow Rate
(flooded inlet)
Displacement / Cycle @ 100 p.s.i.g.
Maximum Particle Size (semi-solids)
Maximum Temperature Limits
Polypropylene
. . . . .
PVDF (Kynar)
. . . . .
Dimensional Data
. . . . . . . . . . . . . . .
Noise Level @ 70 p.s.i. - 60 c.p.m.
Tested with 93110 muffler installed.
The pump sound pressure levels published here have been updated to an Equivalent
Continuous Sound Level (L
) to meet the intent of ANSI S1.13-1971, CAGI-PNEU-
Aeq
ROP S5.1 using four microphone locations.
NOTICE: All possible options are shown in the chart, however, certain
combinations may not be recommended, consult a representative or the
factory if you have questions concerning availability.
GENERAL DESCRIPTION
The ARO Diaphragm Pump offers high volume delivery even at low air
pressure and a broad range of material compatibility options available.
Refer to the model and option chart. ARO pumps feature stall resistant
design, modular air motor / fluid sections.
Air operated double diaphragm pumps utilize a pressure differential in
the air chambers to alternately create suction and positive fluid pressure
in the fluid chambers, ball checks insure a positive flow of fluid.
Pump cycling will begin as air pressure is applied and it will continue to
pump and keep up with the demand. It will build and maintain line pres-
sure and will stop cycling once maximum line pressure is reached (dis-
pensing device closed) and will resume pumping as needed.
1" DIAPHRAGM PUMP
1:1 RATIO (NON-METALLIC)
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING THIS EQUIPMENT.
. . .
20.25 lbs (9.19 kgs)
. .
20.25 lbs (9.19 kgs)
. .
28.5 lbs (12.93 kgs)
. . .
28.8 lbs (13.06 kgs)
. .
28.8 lbs (13.06 kgs)
. .
37 lbs (16.78 kgs)
120 p.s.i. (8.3 bar)
. . . .
10 p.s.i. (0.69 bar)
120 p.s.i. (8.3 bar)
. . . .
47 g.p.m. (177.9 l.p.m.)
. .
0.17 gal. (0.64 lit.)
. . .
1/8" dia. (3.2 mm)
35_ to 175_ F (2_ to 79_ C)
10_ to 200_ F (-12_ to 93_ C)
see page 8
. .
64.5 db (A)
6661AX-X-C
6661XJ-XXX-C
6661XK-XXX-C
6661XL-XXX-C
6661XN-XXX-C
6661XS-XXX-C
6661XT-XXX-C
6661X3-XXX-C
6661X4-XXX-C
6661XP-XXX-C
MODEL DESCRIPTION CHART
CENTER BODY MATERIAL
A - Aluminum
B - Cast Iron
FLUID CAP / MANIFOLD MATERIAL
3 - Colorless Polypropylene flange (3-piece manifold)
4 - PVDF (Kynar
R
) flange (3-piece manifold)
F - Colorless Polypropylene flange (one piece manifold)
G - PVDF (Kynar) flange (one piece manifold)
J - Colorless Polypropylene, N.P.T. (one piece manifold)
K - PVDF (Kynar), N.P.T. (one piece manifold)
L - Colorless Polypropylene, B.S.P. (one piece manifold)
N - PVDF (Kynar), B.S.P. (one piece manifold)
P - Gray Polypropylene flange (3-piece manifold)
R - Gray Polypropylene flange (one piece manifold)
S - Gray Polypropylene, N.P.T. (one piece manifold)
T - Gray Polypropylene, B.S.P. (one piece manifold)
SEAT MATERIAL
2 - 316 Stainless Steel
4 - PVDF (Kynar)
3 - Polypropylene
8 - Hard 440 Stainless Steel
BALL MATERIAL
1 - Neoprene
8 - Polyurethane
2 - Nitrile
A - 316 Stainless Steel
3 - Viton
R
E - Santoprene
4 - PTFE
M - Medical Grade Santoprene
5 - E.P.R.
DIAPHRAGM MATERIAL
1 - Neoprene
3 - Viton
2 - Nitrile
5 - E.P.R.
4 - PTFE / Santoprene M
- Medical Grade Santoprene
FLUID SECTION SERVICE KIT SELECTION
EXAMPLE: MODEL # 6661A3-311-C
FLUID SECTION SERVICE KIT # 637161-11-C
RELEASED:
9-11-89
REVISED:
11-13-10
U)
(REV.
6661XF-XXX-C
6661XG-XXX-C
6661XR-XXX-C
Figure 1
6661 X X - X X X - C
R
9 - Hytrel
R
B - Santoprene
6661XX - X X X - C
637161 - X X - C
BALL
DIAPHRAGM

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Summary of Contents for ARO 6661 A C Series

  • Page 1 GENERAL DESCRIPTION 3 - Polypropylene 8 - Hard 440 Stainless Steel BALL MATERIAL The ARO Diaphragm Pump offers high volume delivery even at low air 1 - Neoprene 8 - Polyurethane pressure and a broad range of material compatibility options available.
  • Page 2: Operating And Safety Precautions

    Use proper ventilation. periods of time. Keep inflammables away from heat, open flames and sparks. CAUTION Use only genuine ARO replacement parts to as- Keep containers closed when not in use. sure compatible pressure rating and longest service life. WARNING Pump exhaust may contain contaminants. Can cause severe injury.
  • Page 3: Air And Lube Requirements

    Lubricate (1) diaphragm rod and (2) “O” ring with Key-LubeR against damage by vibration. grease. Use ARO PN / 98930-T Bullet (installation tool) to aid in installation of (2) “O” ring on (1) diaphragm rod. MAINTENANCE Be certain (7) or (7 / 8) diaphragm(s) align properly with (15) fluid...
  • Page 4 PARTS LIST / 6661AX-X-C FLUID SECTION FLUID SECTION SERVICE KITS KITS INCLUDE: BALLS (See BALL Option, refer to -XX in chart below), DIAPHRAGMS (See DIAPHRAGM Option, refer to -XX in chart below), plus “O” ring items (2), (3), (4), (19) and (33) (listed below) plus a 93706-1 Key-Lube grease packet (see page 6). MATERIAL CODE SEAT OPTIONS BALL OPTIONS...
  • Page 5: Torque Requirements

    PARTS LIST / 6661AX-X-C FLUID SECTION 33 k 38 , 6661XJ-X 6661XK-X 6661XL-X 6661XN-X 26 , 6661XS-X 6661XT-X FOR THE 6661XF-X 6661XG-X AIR MOTOR SECTION 6661XR-X SEE PAGES 6 & 7 19 k 33 k 29 , 27 , COLOR CODE DIAPHRAGM BALL MATERIAL...
  • Page 6 Indicates parts included in 637118-C Air Section Service Kit. SERVICE KIT NOTE: Service Kit 637118-C is a general repair kit for all 1” and larger ARO diaphragm pump air motors. It contains extra “O” Rings and extra parts that may not be needed to service this model.
  • Page 7: Pilot Valve

    PARTS LIST / 6661AX-X-C AIR SECTION IMPORTANT BE CERTAIN TO ORIENT (115) SPACER LEGS AWAY FROM BLOCKING INTERNAL PORTS WHEN REASSEMBLING AIR SECTION. 105 , k 114 k 113 MAJOR VALVE See cross section detail Figure 5. Figure 4 102 k 103 k 102 k .
  • Page 8: Troubleshooting

    TROUBLE SHOOTING Product discharged from exhaust outlet. Low output volume, erratic flow, or no flow. Check for diaphragm rupture. Check air supply. Check tightness of diaphragm nut. Check for plugged outlet hose. Check for kinked (restrictive) outlet material hose. Air bubbles in product discharge. Check for kinked (restrictive) or collapsed inlet material hose.

This manual is also suitable for:

6661a3-344-c

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