OPERATOR’S MANUAL
NM2304A-X-X
SPECIFICATIONS, SERVICE KITS, GENERAL INFORMATION, TROUBLESHOOTING
INCLUDE MANUALS:67151-X LowerPump End (pn 97999-763), 6691X AirMotor(pn97999-748)&S-632 GeneralInforma-
tion Manual (pn 97999-624)
RELEASED:
REVISED:
(REV. G)
1-2-98
6-1-10
NM2304A-X1-X11
3” AIR MOTOR
TWO BALL PUMP SERIES
4:1 RATIO
CARBON STEEL
3” STROKE
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING THIS EQUIPMENT.
It is the responsibility of the employer to place this information in the hands of the operator. Keep for future reference.
SERVICE KITS
PUMP DATA
• Use only genuine AROR replacement parts to assure compatible
pressure rating and longest service life.
MODEL NM2304A-X1-X11
• 637316 for repair of air motor section.
• 637176 for repair of 67151-X-311 and -X-511 lower pump section.
637228 for repair of 67151-X-C11 lower pump section.
Air Inlet (female)
SPECIFICATIONS
1/4 - 18 N.P.T.F. - 1
Model Series (refer to option chart) . . . . . . . . . NM2304A-X1-X11
Type . . . . . . . . . . . . . . . . . . . . . . . . . . Air Operated, Two Ball
Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . 4:1
Air Motor . . . . . . . . . . . . . . . . . . . . . . . 66913
Motor Repair Kit . . . . . . . . . . . . . . . . 637316
Motor Diameter . . . . . . . . . . . . . . . . 3” (7.62 cm)
Stroke (Double Acting) . . . . . . . . . . . 3” (7.62 cm)
Air Inlet (female) . . . . . . . . . . . . . . . . 1/4 - 18 N.P.T.F. - 1
Lower Pump End Series
NM2304A-11-C11 . . . . . . . . . . . . . . 67151-1-C11
NM2304A-11-311 . . . . . . . . . . . . . . 67151-1-311
NM2304A-11-511 . . . . . . . . . . . . . . 67151-1-511
NM2304A-41-C11 . . . . . . . . . . . . . 67151-4-C11
NM2304A-41-311 . . . . . . . . . . . . . . 67151-4-311
NM2304A-41-511 . . . . . . . . . . . . . . 67151-4-511
NM2304A-81-311 . . . . . . . . . . . . . . 67151-8-311
NM2304A-91-311 . . . . . . . . . . . . . . 67151-9-311
NM2304A-A1-C11 . . . . . . . . . . . . . 67151-A-C11
NM2304A-A1-311 . . . . . . . . . . . . . . 67151-A-311
NM2304A-A1-511 . . . . . . . . . . . . . . 67151-A-511
NM2304A-B1-311 . . . . . . . . . . . . . . 67151-B-311
Material Inlet
Air Motor 66913
(see manual 6691X)
“A”
1-7/16”
(36.5 mm)
Material Outlet (female)
3/4 - 14 N.P.T.F. - 1
2 - 11-1/2 N.P.T.
Lower Pump 67151-X-X11
(see manual 67151-X)
“B”
1/2” (13 mm) thru hole
(NM2304A-11-X, -81-X and -B1-X only)
Material Inlet (female)
1-1/2 - 11-1/2 N.P.T.F. - 1
(NM2304A-11-X, -81-X and -B1-X only)
Figure 1
NM2304A-11-X11, -81-, -B1- (female) 1-1/2 - 11-1/2 N.P.T.F. - 1
NM2304A-41-X11, -91-X11, -A1-X11 Immersed Inlet
Material Outlet (female) . . . . . . . . . . 3/4 - 14 N.P.T.F. - 1
NOTE: Dimensionsareshownininchesand(mm),suppliedforreferenceonlyandare
typically rounded up to the nearest 1/16 inch.
Model Number
“A” (mm)
“B” (mm)
Weight (kg)
32 lbs (14.5)
46 lbs (20.9)
31.4 lbs (14.3)
45.4 lbs (20.6)
31.0 lbs (14.1)
32 lbs (14.5)
NM2304A-11-X11
NM2304A-41-X11
NM2304A-81-X11
NM2304A-91-X11
NM2304A-A1-X11
NM2304A-B1-X11
30-11/32” (770.3)
55-23/32” (1414.9)
30-11/32” (770.3)
55-23/32” (1414.9)
29-21/32” (752.9)
30-11/32” (770.3)
11-23/32” (297.7)
37-3/32” (942.2)
11-23/32” (297.7)
37-3/32” (942.2)
11-1/32” (280.2)
11-23/32” (297.7)
PERFORMANCE
Air Inlet Pressure Range . . . . . . . . . 0 - 150 p.s.i. (0 - 10.3 bar)
Fluid Pressure Range . . . . . . . . . . . 0 - 600 p.s.i. (0 - 41.4 bar)
Maximum Rec’d Cycles / Minute . . . . . 125
Displacement In3 Per Cycle . . . . . . . . . 8.2
Volume / Cycle . . . . . . . . . . . . . . . . . . . 4.54 oz. (134.3 ml)
Cycles Per Gallon . . . . . . . . . . . . . . . . 28.2
IMPORTANT
This is one of the four documents which support the pump. Re-
placement copies of these forms are available upon request.
= NM2304A-X-X Model Operator’s Manual (pn 97999-749)
- S-632 General Information - Industrial Piston Pumps (pn 97999-624)
- 67151-X Lower Pump End Operator’s Manual (pn 97999-763)
- 6691X Air Motor Operator’s Manual (pn 97999-748)
Flow @ 60 Cycles / Minute . . . . . . . . . . 2.1 g.p.m. (8.06 l.p.m.)
Noise Level @ 100 p.s.i. . . . . . . . . . . . . 85 db(A) *
Accessories Available . . . . . . . . . . . 61113 Wall Mount Bracket
66073-1 Air Line Connection Kit
* The pump sound pressure level has been updated to an Equivalent Continuous Sound
Level (L ) to meet the intent of ANSI S1. 13-1971, CAGI-PNEUROP S5.1 using four
Aeq
microphone locations.
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
CCN 99695199
(800) 495-0276 FAX(800) 892-6276
© 2010
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