1/2" ALUMINUM PUMP
Model 1120-012
SERVICE BULLETIN SB 1062
Revised 05/07
OPERATION, INSTALLATION,MAINTENANCE AND REPAIR GUIDE
Thoroughly read and understand this manual before installing, operating or servicing this equipment.
Page 1: ...M PUMP Model 1120 012 SERVICE BULLETIN SB 1062 Revised 05 07 OPERATION INSTALLATION MAINTENANCE AND REPAIR GUIDE Thoroughly read and understand this manual before installing operating or servicing thi...
Page 2: ...bility of the purchaser to retain this manual for reference Failure to comply with the recommen dations stated in this manual will damage the pump and void factory warranty In the presence of explosiv...
Page 3: ...Rate Buna N Diaphragms 0 14 gpm 0 56 lpm Pump Connections Suction Discharge 1 2 NPT Air Inlet 3 8 NPT Air Exhaust 3 8 NPT Suction Lift Buna N Diaphragms 20 6 09m Dry Acetal Valve Balls 25 7 62m Wet Ma...
Page 4: ...ottom of the chart and move vertically until you cross the necessary air supply pressure Finally move horizontally to the left to find the required air supply volume 1120 012 1 2 Aluminum Pump Perform...
Page 5: ...aphragm in turn applies pressure on the fluid and forces it out of the pump discharge While this is occurring the opposite air chamber is depressurized and exhausted to atmosphere and fluid is drawn i...
Page 6: ...allation has the pump datum line below the fluid level IMPORTANT in flooded suc tion installations the pressure at the fluid inlet of the pump should never exceed 69 kPa 10 psi In suction lift install...
Page 7: ...776 110 16 Diaphragm 2 17 Valve Ball 4 18 Water Chamber 2 393776 54 19 Valve Seat 4 393776 129 20 Inner Diaphragm Plate 2 393776 155 21 Air Valve Cap Screw 4 393776 71 22 Pilot Shaft Snap Ring 2 23 Pi...
Page 8: ...and valve housings are not designed to support any structural weight and failure of the pump may result The use of flexible piping connections is highly recommended Do NOT exceed the recommended opera...
Page 9: ...um pumps Model 1120 012 have a maximum decibel reading of 89 5 dB A when equipped with a factory installed air exhaust muffler The decibel readings are obtained with a Pacer Industries model SL 120 so...
Page 10: ...r replacement of parts or products resulting from general wear and through use or damage or failure caused by improper installation abuse misapplication abrasion corrosion insufficient or improper mai...