Binks GEMINI II 41-818831 - User Manual

Model 41-818831
Conductive Acetal Ball Valve Pump
Table of Contents
Engineering Data and Temperature Limitations .......................................................1
Warranty Information ................................................................................................1
Performance Curve ..................................................................................................2
Dimensions ...............................................................................................................3
Metric Dimensions ....................................................................................................3
Principle of Pump Operation.....................................................................................4
Installation and Start-up............................................................................................4
Air Supply .................................................................................................................4
Air Valve Lubrication .................................................................................................4
Air Line Moisture.......................................................................................................4
Air Inlet and Priming .................................................................................................4
Between Uses ..........................................................................................................4
Troubleshooting .......................................................................................................5
Important Safety Information ....................................................................................6
Composite Repair Parts Drawing .............................................................................8
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Available Service and Conversion Kits .....................................................................8
Composite Repair Parts List .....................................................................................9
Air Valve Assembly Drawing ...................................................................................10
Air Valve Assembly Parts List .................................................................................10
Air Valve Servicing ..................................................................................................11
Pilot Valve Servicing ...............................................................................................12
Intermediate Assembly Drawing and Servicing ......................................................13
Check Valve Drawing .............................................................................................14
Check Valve Servicing ............................................................................................14
Diaphragm Service Drawing, with Overlay .............................................................15
Diaphragm Servicing ..............................................................................................16
Overlay Diaphragm Servicing ................................................................................16
Pumping Hazardous Liquids...................................................................................17
Converting the Pump for Piping the Exhaust Air ....................................................17
Exhaust Conversion Drawing .................................................................................17
Converted Exhaust Illustration................................................................................17
Grounding the Pump ..............................................................................................18
EC Declaration of Conformity - Machinery .............................................................19
EC Declaration of Conformity - ATEX .....................................................................20
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II 2GD T5
II 2 G c T5
II 3/2 G c T5
II 2 D c T100°c
SERVICE & OPERATING MANUAL
Original Instructions
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Part Sheet 77-2995

Binks GEMINI II 41-818831 Specifications

General

Category	Water Pump
Model	GEMINI II 41-818831
Power Source	Electric
Inlet Size	3/8 in NPT
Outlet Size	3/8 in NPT

Summary

ENGINEERING, PERFORMANCE & CONSTRUCTION DATA

Warranty Information

Details the 5-year limited product warranty for Binks pumps, covering material and workmanship defects.

Performance Curve

Dimensions

PRINCIPLE OF PUMP OPERATION

INSTALLATION AND START-UP

Guidance on proper pump placement, suction line setup, flexible hose installation, and surge suppressor recommendations.

AIR SUPPLY

Details maximum air pressure, connection requirements, and the importance of supporting air supply lines.

AIR VALVE LUBRICATION

Explains the preferred mode of operation without lubrication and the SAE 10 oil recommendation if needed.

AIR LINE MOISTURE

Discusses issues caused by water in compressed air, like icing, and suggests using an air dryer.

AIR INLET AND PRIMING

Instructions on starting the pump, opening the air valve, and managing cavitation for optimal flow.

BETWEEN USES

Recommends flushing after use for materials that settle, and draining in freezing temperatures.

TROUBLESHOOTING

Important Safety Information

General Operation Safety

Read all warnings before operation. Ensure bolting is good and air supply is safe during maintenance.

Static Sparking Hazard

Action to prevent static sparking, especially with flammable liquids. Grounding is essential.

Toxic and Aggressive Fluids

Flush pump clean before disassembly when using toxic or aggressive fluids.

Maintenance Safety Precautions

Shut off air, bleed pressure, disconnect line. Ensure pressure is vented before maintenance.

Personal Protective Equipment

Wear approved eye protection and protective clothing during maintenance for safety.

Diaphragm Rupture Hazard

Pumped material may enter air end. Pipe exhaust to safe area if pumping hazardous material.

Noise and Particle Hazards

Wear ear and eye protection to guard against airborne particles and loud noise hazards.

Composite Repair Parts Drawing

Composite Repair Parts List

Air Distribution Valve Assembly Drawing

AIR DISTRIBUTION VALVE SERVICING

Plunger Bushing, O-Ring, and Retaining Ring Servicing

Steps to service plunger bushing components by removing retaining rings, bushings, and inspecting O-rings.

Intermediate Assembly Drawing

Actuator Plunger Servicing

Instructions to service actuator plungers, including removing pilot valve assembly and inspecting components.

Plunger Bushing, O-Ring, and Retaining Ring Servicing

Procedure to service bushings, O-rings, and retaining rings for plunger components.

Check Ball Valve Drawing

Diaphragm Service Drawing, with Overlay

DIAPHRAGM SERVICING

PUMPING HAZARDOUS LIQUIDS

Converting the Pump for Piping the Exhaust Air

Steps to pipe exhaust air away from the pump, noting thread types and support requirements for connections.

Grounding The Pump

Declaration of Conformity

EC Declaration of Conformity

EC Declaration of Conformity ATEX Summary of Markings