Idex Warren Rupp MARATHON M20, Service & Operating Manual

m20nmdl3sm-rev0814 

 Model M20 Non-Metallic Page 2 

Check 

Diaphragm/ 

Check 

Non-Wetted 

Shipping 

Model 

Pump  Pump  Valve  Design  Wetted 

Check Valve  Valve 

Material 

Porting  Pump  Pump 

Kit 

Weight

Brand  Size 

Type 

Level  Material 

Materials 

Seat 

Options  Options  Style  Options  Options  lbs. (kg)

  M20B3P1PP

US000 

M

20 

B 

3 

P 

1 

P 

P 

U

S 

0 

00. 

90 (41)

M20B3K1KPUS000 

M 

20 

B 

3 

K 

1 

K 

P 

U 

S 

0 

00. 

125 (57)

  M20B3P2PPUS000 

M 

20 

B 

3 

P 

2 

P 

P 

U 

S 

0 

00. 

95 (43)

  M20B3K2KPUS000 

M 

20 

B 

3 

K 

2 

K 

P 

U 

S 

0 

00. 

130 (59)

  M20B3PGPPUS000 

M 

20 

B 

3 

P 

G 

P 

P 

U 

S 

0 

00 

126 (57)

  M20B3KGKPUS000 

M 

20 

B 

3 

K 

G 

K 

P 

U 

S 

0 

00 

131 (59)

M20B3C1PCUS000 

M 

20 

B 

3 

C 

1 

P 

C 

U 

S 

0 

00. 

94 (43)

M20B3C2PCUS000 

M 

20 

B 

3 

C 

2 

P 

C 

U 

S 

0 

00. 

100 (45)

M20 Non-Metallic · Design Level 3 · Ball Valve

Explanation of Pump Nomenclature

Pump Brand 

M= MARATHON

®

Pump Size 

20=2" 

Check Valve Type 

B= Ball

Design Level

3=  Design Level  3

Wetted Material

K= PVDF

P= Polypropylene 

C= Conductive Polypropylene

Diaphragm / Check Valve Materials

1=  Santoprene/Santoprene

2=  PTFE-Santoprene Backup/PTFE

6=  PTFE Pumping, PTFE-Neoprene  

  Backup Driver/PTFE

B= Nitrile/Nitrile

C= FKM / PTFE

G= PTFE-Neoprene Backup/PTFE

N= Neoprene/Neoprene

Z=  One-Piece Bonded/PTFE

Check Valve Seat

K= PVDF

P= Polypropylene

Non-Wetted Material Options

C= Carbon Filled Conductive 

  Polypropylene

P= 40%Glass Filled Polypropylene

1=  40%Glass Filled Polypropylene

  w/PTFE Coated Hardware

Porting Options

U= Universal Flange 

  (Fits ANSI & DIN)

7=  Dual Porting (ANSI)

8=  Top Dual Porting (ANSI)

9=  Bottom Dual Porting (ANSI)

Pump Style

D= with Electronic Leak Detection (110V)

E= with Electronic Leak Detection (220V)

M= with Mechanical Leak Detection

S= Standard 

V= with Visual Leak Detection

Pump Options

0= None 

1=  Sound Dampening Muffler

2=  Mesh Muffler

3=  Expanded Clearance Air Valve 

  w/Integral Muffler

4=  Expanded Clearance Air Valve 

w/Sound Dampening Muffler

Kit Options

continued

E4.= Solenoid Kit with 110VAC Coil

E5.= Solenoid Kit with 110VAC 

Explosion-Proof Coil

E6.= Solenoid Kit with 220VAC Coil

E7.= Solenoid Kit with 220VAC

Explosion-Proof Coil

E8.= Solenoid Kit with 110VAC, 50 Hz  

Explosion-Proof Coil

E9.= Solenoid Kit with 230VAC, 50 Hz  

Explosion-Proof Coil

SP.= Stroke Indicator Pins

Pump Options

continued

5=  Expanded Clearance Air Valve 

  w/Mesh Muffler

6=  Metal Muffler

7=  Metal Muffler with 

  grounding cable

Kit Options

00.= None 

P0.= 10-30VDC Pulse Output Kit

P1.= Intrinsically-Safe 5-30VDC,

110/120VAC 220/240 VAC 

Pulse Output Kit

P2.= 110/120 or 220/240VAC

Pulse Output Kit

E0.= Solenoid Kit with 24VDC Coil

E1.= Solenoid Kit with 24VDC

Explosion-Proof Coil

E2.= Solenoid Kit with 24VAC/12VDC Coil

E3.= Solenoid Kit with 12VDC 

Explosion-Proof Coil

*Note: See page 20 for 

Special 

Conditions For Safe Use

.

A1.= Solenoid Kit with 12 VDC 

ATEX Compliant Coil 

A2.= Solenoid Kit with 24 VDC 

ATEX Compliant Coil 

A3.= Solenoid Kit with 110/120 VAC 

50/60 Hz ATEX Compliant Coil

A4.= Solenoid Kit with 220/240 VAC

50/60 Hz ATEX Compliant Coil

Note: Pumps are only ATEX 

compliant when ordered with wet

-

ted material option C non-wetted 

material option C, pump option 0, 

6 or 7, and kit option 0.

II 2GD T5

(1)

Note: Pumps ordered 

with the options listed in 

(1) to the left are ATEX 

compliant when ordered 

with kit option P1.

II 2G Ex ia c IIC T5
II 2D c iaD 20 IP67 T100˚C

(2)

Note: Pumps ordered with the options listed 

in (1) to the left are ATEX compliant when 

ordered with kit option A1, A2, A3, or A4. 

Compressed Air Temperature Range: Maxi-

mum Ambient Temperature to plus 50°C.

II 2G EEx m c T5
II 2D c IP65 T100°C

(3*)

IEC EEX m T4

Note: Pump models equipped with these 

explosion-proof solenoid kit options E1, 

E3, E5, E7, E8 or E9, are certified and 

approved by the above agencies. They are 

NOT

 ATEX compliant.

(4)

Note: Models listed in the table are for reference only. See nomenclature below for other models.

II 1G c T5

II 3/1 G c T5

II 1D c T100°C

I M1 c

I M2 c

II 2G Ex ia c IIC T5

II 3/2 G Ex ia c IIC T5

II 2D Ex c ia 20 IP67 T100°C

II 2G EEx m c II T5

II 3/2 2G EEx m c II T5

II 2D c IP65 T100°C