Idex Warren Rupp MARATHON M20, Service & Operating Manual

m20nmdl3sm-rev0814

Warren Rupp, Inc. • A Unit of IDEX Corporation • 800 N. Main St., Mansfield, Ohio 44902 USA  

Telephone (419) 524-8388 • Fax (419) 522-7867 • www.warrenrupp.com 

Engineering Data and Temperature Limitations ....................................................................... 1

Explanation of Pump Nomenclature

 ......................................................................................... 2

Performance Curve, Model M20 Non-Metallic Design Level 3

 ................................................. 3

Dimensions: M20 Non-Metallic ................................................................................................. 4

Dimensions: M20 Non-Metallic with Spill Containment

 .............................................................

5

Principle of Pump Operation

.....................................................................................................

6

Installation and Start-up............................................................................................................

6

Air Supply .................................................................................................................................

6

Air Valve Lubrication .................................................................................................................

6

Air Line Moisture.......................................................................................................................

6

Air Inlet and Priming

 .................................................................................................................

6

Between Uses

 ..........................................................................................................................

6

Installation Guide ......................................................................................................................

7

Recycling .................................................................................................................................. 8
Important Safety Information .................................................................................................... 8
Material Codes .........................................................................................................................

9

Troubleshooting

 ...................................................................................................................... 10

Warranty ................................................................................................................................. 10

Composite Repair Parts Drawing

 ........................................................................................... 12

Repair Parts Servicing Kits

 ..................................................................................................... 12

Composite Repair Parts List

 ................................................................................................... 13

Spill Containment Option 

 ....................................................................................................... 14

Spill Containment Repair Parts List

 ........................................................................................ 14

Spill Containment Concept ..................................................................................................... 14

Spill Containment Option Diaphragm Servicing 

 ....................................................................

15

Filling Chambers with Liquid

...................................................................................................

15

Air Distribution Valve Assembly Drawing

 ................................................................................

16

Main Air Valve Assembly Parts List

 ........................................................................................

16

Air Distribution Valve Servicing ...............................................................................................

17

Air Distribution Valve with Stroke Indicator Options

 ............................................................... 18

Air Distribution Valve with Stroke Indicator Parts List 

 ............................................................ 18

Air Distribution Valve with Stroke Indicator Servicing

 .............................................................

19

Solenoid Shifted Air Valve Drawing

 ........................................................................................ 20

Solenoid Shifted Air Valve Parts List

 ...................................................................................... 20

Solenoid Shifted Air Distribution Valve option

 ......................................................................... 21

Diaphragm Service Drawing, Non-Overlay

............................................................................. 22

Diaphragm Service Drawing, with Overlay

 ............................................................................. 22

Diaphragm Servicing

 .............................................................................................................. 23

Overlay Diaphragm Service 

................................................................................................... 23

Pilot Valve Assembly Drawing

 ................................................................................................ 24

Pilot Valve Assembly Parts List

 .............................................................................................. 24

Pilot Valve Servicing

 ............................................................................................................... 24

Pumping Hazardous Liquids

...................................................................................................

25

Converting the Pump for Piping the Exhaust Air

 ....................................................................

25

Exhaust Conversion Drawing

 .................................................................................................

25

Converted Exhaust Illustration

................................................................................................

25

Modular Check Valve Servicing

 ..............................................................................................

26

Modular Check Valve Drawing

 ...............................................................................................

26

Dual Port Option Drawing

 .......................................................................................................

27

Dual Porting Options

 ..............................................................................................................

27

Dual Porting of Both Suction and Discharge Ends of the Pump

.............................................

27

Single Porting of the Suction and Dual Porting of the Pump Discharge

 .................................

27

Dual Porting of the Suction and Single Porting of the Pump Discharge

 .................................

27

Leak Detection Options Drawing

 ............................................................................................ 28

Electronic Leak Detector Installation

 ...................................................................................... 28

Mechanical Leak Detector Installation

 .................................................................................... 28

Pulse Output Kit Drawing

 .......................................................................................................

29

Pulse Output Kit Option

 ..........................................................................................................

29

Optional Muffler Configurations

 .............................................................................................. 30

Grounding the Pump

 .............................................................................................................. 31

CE Declaration of Conformity Machinery

 ............................................................................... 32

CE Declaration of Conformity ATEX ....................................................................................... 33

Explanation of ATEX Certifications

 ......................................................................................... 34

SERVICE & OPERATING MANUAL

Original Instructions

Model M20 Non-Metallic Design Level 3

Table of Contents

©Copyright 2014 Warren Rupp, Inc. All rights reserved.

See page 2 
for ATEX ratings.

See pages 2, 33 and 34 

for ATEX ratings.