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Page 6

Mounting
Bolts

Fluid
Suction

Fluid
Discharge

Air
Supply

Surge
Suppresser

Shut Off
Valve

Pressure
Gauge

Flexible
Connection

Union or
Pipe Flange
Connection

Filter
Regulator

Air Exhaust
Muffler

Shut Off
Valve

Shut Off
Valve

Suggested Installation

In a 

submerged application

, the air

exhaust port of the pump must be
ported above the fluid line. Be certain
that the fluid being pumped is com-
patible with the materials on both the
airside and the wetted side of the
pump before the pump is submerged.

flooded suction installation

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 installations

the pump

datum is above the fluid line.
IMPORTANT: each pump has differ-
ent lift capabilities. Be sure to verify
the lift capability of a particular pump
before installing it into a system.

A typical installation showing all the components that are
recommended in a system, including valves, pressure

gauges, air regulators, filters, and surge suppressors.

Flooded Suction Installation

Pump Datum

Fluid Discharge

Air Exhaust

Air Inlet

Suggested Submerged Installation

Suction Lift Installation

Pump Datum

TYPICAL INSTALLATIONS

Summary of Contents for 1120-011

Page 1: ...C PUMP Model 1120 011 SERVICE BULLETIN SB 1060 Revised 7 07 OPERATION INSTALLATION MAINTENANCE AND REPAIR GUIDE Thoroughly read and understand this manual before installing operating or servicing this...

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: ...le Flow Rate Buna N Diaphragms 0 14 gpm 0 56 lpm Pump Connections Suction Discharge 1 2 NPT ID Air Inlet 0 375 NPT Air Exhaust 0 375 NPT Suction Lift Buna N Diaphragms 20 6 09m Dry Acetal Valve Balls...

Page 4: ...bottom 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 011 Plastic Pump Performanc...

Page 5: ...diaphragm 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...

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: ...Snap Ring 2 17 Pilot Shaft Spacer 5 18 Shaft Retainer 2 393776 46 19 Pilot Retainer Screw 4 393776 47 20 Inner Diaphragm Plate 2 393776 155 21 Outer Diaphragm Plate 2 393776 110 22 Air Exhaust Muffler...

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: ...c pumps Model 1120 011 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 sou...

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...

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