Ck062

Multi-Port Connection (Lever operation) Quick Connect Couplings

MAM-A-ZEL TypeA new low spillage
ZEL CUPLA series added to the
MULTI CUPLA product range !
Low spillage CUPLA
MAM-A-ZEL Type
Plug

Socket

MAM-A-ZEL-2P

MAM-A-ZEL-2S

Plug

SocketThread size

1/4"

Mounted onto plates of MAM-A TypeThread size

3/8"

Plug
MAM-A-ZEL-3P

MAM-A-ZEL-3S

MAM-A-ZEL-4P

MAM-A-ZEL-4S

SocketThread size

1/2"

Mounted onto plates of MAM-B TypeChoose the individual CUPLA unit according to your operating conditions.

MAM-A-ZEL Type
Couplingbody

Low spill type

MAM-A-SP Type
Current product

Couplingsize

1/4"
3/8" 1/2"

Numberof ports

46Ports

Ports

Ports

Ports8 12

MAM-A-ZEL coupling can be mounted onto MAM-A or MAM-B MULTI CUPLA plates. (1/8" plates excluded)
Products Comply
with RoHS Directive

A-ZEL

MAMType
The greater number ofports, the chance ofspillage increases...
MAM-A-SP TypeEliminate the problem !!
Typical spillage

MAM-A-ZEL Type (Low spill type)(6 ports of size 1/4")

4.8 mL 0.36 mL(May vary. Depends on the application.)LowspillageSpecifications (Individual coupling)
Model

Suitability for Vacuum

Plug

MAM-A-ZEL-2P

MAM-A-ZEL-3P

MAM-A-ZEL-4P

Socket only

Plug only

When connected

Socket

MAM-A-ZEL-2S

MAM-A-ZEL-3S

MAM-A-ZEL-4S--

Operational

1/4"

3/8"

1/2"

Size (Thread)
Body material

Remarks

Seal material

Mark

Working temperature range

Fluoro rubber

FKM-20˚C to +180˚C Standard material*1: The normal allowable fluid pressure under continuous use.
Exceeding the working pressure may cause damage and leakage.
*2: The minimum and maximum working temperature range of the seal material used in the product.
Continuous use at the minimum or maximum temperature is not recommended. Please contact us for consultation.
- The specifications when used with individual couplings mounted onto the plate, conform to the specifications of the individual coupling.

MAM-B Type
Plug

Volume of air inclusion

661212Aluminum alloy

Ambient temperature range

0˚C to +60˚C4Maximum Tightening Torque

Volume of spillage

0.06[Test Conditions]

0.12

0.15

N m {kgf • cm}

1/4"

3/8"

1/2"

Torque9 {92}

12 {122}30 {306}

Interchangeability

No connection is possible between plates with different number of ports or different size.

(mm2)

Minimum Cross-Sectional Area (per port)

MAM-A-ZEL-2S×MAM-A-ZEL-2P MAM-A-ZEL-3S×MAM-A-ZEL-3P MAM-A-ZEL-4S×MAM-A-ZEL-4P
3160.5

86.5- Fluid: Water- Temperature: 23˚C

MAM-A-ZEL Type1.0{10}8Size (Thread)

Model(mL)

MAM-A-ZEL-2S×MAM-A-ZEL-2P MAM-A-ZEL-3S×MAM-A-ZEL-3P MAM-A-ZEL-4S×MAM-A-ZEL-4P

Model

Pressure loss in MPa {kgf/cm2}

8Body material

Min. cross-sectional area

0.39

Volume of Spillage per Disconnection (per port)

Socket MAM-B-2S6-CL MAM-B-2S8-CL MAM-A-2S6-CL MAM-A-2S12-CL MAM-A-3S6-CL MAM-A-3S12-CL MAM-A-4S4-CL MAM-A-4S8-CL
60.21

Flow Rate - Pressure Loss Characteristics (per port)

MAM-A TypeMAM-B-2P6-CL MAM-B-2P8-CL MAM-A-2P6-CL MAM-A-2P12-CL MAM-A-3P6-CL MAM-A-3P12-CL MAM-A-4P4-CL MAM-A-4P8-CL

Number of ports

0.16

May vary. Depends on the application.

May vary. Depends on the application.

Specifications (Plate only)
Plate type

MAM-A-ZEL-2S×MAM-A-ZEL-2P MAM-A-ZEL-3S×MAM-A-ZEL-3P MAM-A-ZEL-4S×MAM-A-ZEL-4P

Model

1.0 MPa, 10 kgf/cm2, 10 bar, 145 PSI

Seal material
Working temperature range *2(mL)

Admixture of Air on Connection (per port)

Brass (Nickel plated)

Working pressure *1

Model

1.3×10-1 Pa {1×10-3 mmHg}

MAM-A-SP Type

MAM-A-ZEL-2S×MAM-A-ZEL-2P
MAM-A-ZEL-3S×MAM-A-ZEL-3P
MAM-A-ZEL-4S×MAM-A-ZEL-4P
MAM-A-2S×MAM-A-2P
MAM-A-3S×MAM-A-3P
MAM-A-4S×MAM-A-4P

0.1{1}

0.01
{0.1}

0.001
{0.01}

110100Flow rate in L/min

Models and Dimensions

MAM-A-ZEL Type (Individual low spillage coupling)

Plug

WAF : WAF stands for width across flats.

Socket

MAM-A-ZEL Type (Individual low spillage coupling)

H

L

Model

Application(Thread)Mass(g)L

øD2

H (WAF)T

MAM-A-ZEL-2P

øD1

R 1/4

4247

19

16

Hex.17

Rc 1/449

23

20

Hex.21

Rc 3/855

32

25

Hex.29Rc 1/2

MAM-A-ZEL-3P
MAM-A-ZEL-4P

1

D1

D2

D2TD1T

H

L

R 3/8

64

R 1/2

123

Dimensions (mm)Dimensions (mm)ModelApplication(Thread)Mass(g)L

øD2

H (WAF)T

MAM-A-ZEL-2S

øD1

R 1/4

78(46)

23

20

Hex.21

Rc 1/4R 3/8

129(51.5)

24

29.5

Hex.27

Rc 3/8R 1/2

210(59)35

30

Hex.32

Rc 1/2

MAM-A-ZEL-3S
MAM-A-ZEL-4S

Customize inaccordance withyour operating
conditions.

Lever
Coupling (Socket)
Coupling (Plug)
Lock unit

Plug plate

Lock unit

Socket plate
The MULTI CUPLA
shown above

PlugSocket

Coupling

MAM-A-ZEL-4P MAM-A-ZEL-4S

Plate

MAM-A-4P8-CL MAM-A-4S8-CL

1 Decide the [Type] and [Size] of CUPLA to be used
Coupling

Plug

Model

MAM-A-ZEL Type

MAM-A-ZEL-2P

Low spill
type

SocketModel

MAM-A-ZEL Type

MAM-A-ZEL-2S

Low spill
type

MAM-A-ZEL-3P

Interchangeable
Same size only

MAM-A-ZEL-3S

MAM-A-ZEL-4P

Current
product

MAM-A-ZEL-4S
No interchangeability

Plug

Model

MAM-A-SP Type

MAM-A-2P

Current
product

MAM-A-3P

Interchangeable

SocketModel

MAM-A-SP Type

MAM-A-2SSame size only

MAM-A-3S

MAM-A-4P

MAM-A-4S

MAM-A-ZEL and MAM-A-SP Type can be mounted on the same plates.
Note: MAM-A-ZEL Type is not interchangeable with the MAM-A-SP Type.

One way valve for MAM-A-ZEL (Plug without valve) and valve-less MAM-A-SP (Plug and Socket without valve) are available on request as made-to-order versions.

2 Specify the required number of [Port]s
3 Select the [Plate]Note: If the coupling size is 1/4" and the number of ports
is 6, either plate for MAM-A or MAM-B can be used.
(Choose either one by the outer dimensions)

Plate

Coupling body

Size (Thread)

1/4"
MAM-A-ZEL Type
MAM-A-SP Type

3/8"
1/2"

Numberof ports
68

Plate model of
Plug side

Plate model ofSocket side

Outerdimensions

MAM-A-2P6-CL

MAM-A-2S6-CL

See page 4

MAM-B-2P6-CL
MAM-B-2P8-CL

MAM-B-2S6-CL
MAM-B-2S8-CL

12

MAM-A-2P12-CL

MAM-A-2S12-CL

12

MAM-A-3P12-CL

MAM-A-3S12-CL

8

MAM-A-4P8-CL

MAM-A-4S8-CL

64

MAM-A-3P6-CL
MAM-A-4P4-CL

MAM-A-3S6-CL

MAM-A-4S4-CL

See page 3
See page 3
See page 4
See page 5
See page 5
See page 6
See page 6

In order to balance the force of system pressure, place each CUPLA symmetrically from the lock unit (center).

Safety Guide

WARNING-Do not connect / disconnect under pressure or residual pressure of 0.6 MPa. Damage may result.
-Do not exceed the working pressure. Leakage or damag may result.
-Do not drop the product. It will cause deformation of the plate.

Read without fail and observe the "Instruction sheet" that comes with the product and the following pages in the Quick Connect Couplings General Catalog; [Precautions Related to the Use of All CUPLA] and "Multi Cupla Series" in the [Safety Guide] page.

2B Type

MAM-Models and Dimensions

Model MAM-B-2P6-CL×MAM-B-2S6-CL (6 Port Type / Plate size : Small)-Application: R 1/4

MAM-B Type

Plate type
Applicable
Coupling

Ports

Plug

Socket

MAM-A-ZEL-2P

MAM-A-ZEL-2S

MAM-A-2P

MAM-A-2S

Plate model of Socket side

MAM-B-2S6-CL

Connect position)(65°

6Dimensions (mm)

-Mass: Plug (500 g), Socket (788 g)

(62)

4)

(R11(When lever is in locked position)(10°)

Valve open position

Disconnect positionPlate model of Plug side

MAM-B-2P6-CL

(121)

22

83
32
532
574(95.2)

22(118)4xø76x(ø16)

6x(ø20)10(16)

28

15

22

28

28

15(52)(86)(Lever in disconnect position)(63)(When lever is in locked position) (When lever is in locked position)

115

53

(19)

28(62)

89(114)90

Model MAM-B-2P8-CL×MAM-B-2S8-CL (8 Port Type / Plate size : Large)-Application: R 1/4

MAM-B Type

Plate type8

Applicable
Coupling

Ports

Dimensions (mm)

-Mass: Plug (600 g), Socket (894 g)

PlugSocket

MAM-A-ZEL-2PMAM-A-ZEL-2S

MAM-A-2P

MAM-A-2S

Plate model of Socket side

MAM-B-2S8-CL

Connect position)(65°(62)4)(R11(When lever is in locked position)(10°)

Valve open position

Disconnect position

Plate model of Plug side

MAM-B-2P8-CL

73
18.58x(ø16)

10(16)

1553

8x(ø20)

28
22

28

51.5

28
51.5(19)

28

51.5

51.5
(114)

134
150

3(111)

8.5

(108)
22
55

18.5

64(85)

22

8.5

4xø7

136

15(52)(86)(Lever in disconnect position)

A Type

MAM-Models and Dimensions

Model MAM-A-2P6-CL×MAM-A-2S6-CL (6 Port Type / Plate size : Small)-Application: R 1/4

MAM-A Type

Plate type6

ApplicableCoupling

Ports

Dimensions (mm)

-Mass: Plug (860 g), Socket (1658 g)

PlugSocket

MAM-A-ZEL-2P

MAM-A-ZEL-2S

MAM-A-2P

MAM-A-2S

Plate model of Socket side

MAM-A-2S6-CL

Connect position°)(65(R1)17

ø6

ø11(117)(When lever is in locked position)

7.5
(15)
Valve open position

Plate model of Plug side

Cross section A-A(4 corners)

Disconnect position

61

31.5

88102

34.5
1.5(147)(When lever is in locked position)90(116.4)3528

356x(ø20)

AA

35(7)

8(18) 156x(ø16)

(10)

31.5

34.5
1.5

4xø9(143)(157)

MAM-A-2P6-CL

35112

118132139(21.5) 1555

(91.5)(Lever in disconnect position)

Model MAM-A-2P12-CL×MAM-A-2S12-CL (12 Port Type / Plate size : Large)-Application: R 1/4

MAM-A Type

Plate type
Applicable
Coupling

Ports

Plug

Socket

MAM-A-ZEL-2P

MAM-A-ZEL-2S

MAM-A-2P

MAM-A-2S

Connect position

Plate model of Socket side

MAM-A-2S12-CL°)(6512Dimensions (mm)

-Mass: Plug (1170 g), Socket (1816 g)

(R1)
17

ø6

ø11(117)(When lever is in locked position)

7.5(15)
Valve open position

Cross section A-A(4 corners)

Disconnect position

Plate model of Plug side

61

28

63

35
170

190

63

12x(ø20)

AA

63

35

35
174

(157)

(143)

34.5

102

1.5
31.5

34.5
1.5

88
31.5

(7)

31.5
90(116.4)35(10)

8(18) 1512x(ø16)

1.5
34.5

31.5

34.5
1.5

4xø9

(147)(When lever is in locked position)

MAM-A-2P12-CL(21.5) 15
6355(91.5)(Lever in disconnect position)

195

4

A Type

MAM-

Models and Dimensions

Model MAM-A-3P6-CL×MAM-A-3S6-CL (6 Port Type / Plate size : Small)-Application: R 3/8

MAM-A Type

Plate type
Applicable
Coupling

Ports

PlugSocket

MAM-A-ZEL-3P

MAM-A-ZEL-3S

MAM-A-3P

MAM-A-3S

Plate model of Socket side

Connect position

MAM-A-3S6-CL°)(656Dimensions (mm)

-Mass: Plug (878 g), Socket (1668 g)(Rø6ø11(117)(When lever is in locked position)1)
177.5(15)Valve open position

Disconnect position

Cross section A-A(4 corners)

Plate model of Plug side

61

37.5

88
102

34.56x(ø24)

AA

37.5(7)37.5

28(10)

8(18) 156x(ø20)

31.5
1.5

31.5
1.590(116.4)

34.5(147)(When lever is in locked position)

4xø9(143)(157)

MAM-A-3P6-CL

37.5

120

123

140

144

(21.5) 1555(91.5)(Lever in disconnect position)

Model MAM-A-3P12-CL×MAM-A-3S12-CL (12 Port Type / Plate size : Large)-Application: R 3/8

MAM-A Type

Plate type

12Applicable
Coupling

Ports

Dimensions (mm)

-Mass: Plug (1206 g), Socket (1836 g)

PlugSocketMAM-A-ZEL-3P

MAM-A-ZEL-3S

MAM-A-3P

MAM-A-3S

Plate model of Socket side

Connect position

MAM-A-3S12-CL°)(65(R1)17

ø6

ø11(117)(When lever is in locked position)

7.5
(15)
Valve open position

Disconnect position

Cross section A-A(4 corners)

Plate model of Plug side

6128

37.5

37.5
190
210

5

70.5(157)

(143)

31.5

102
12x(ø24)

AA

70.5

37.5

37.5
189

210

1.5
34.5

31.5
90
(116.4)

1.5
34.5
70.5

(7)

8(18) 1512x(ø20)

(10)

31.5

34.5
1.5

4xø9

(147)(When lever is in locked position)
88
31.5
34.5
1.5

MAM-A-3P12-CL(21.5) 15
70.5

55(91.5)(Lever in disconnect position)

A Type

MAM-Models and Dimensions

Model MAM-A-4P4-CL×MAM-A-4S4-CL (4 Port Type / Plate size : Small)-Application: R 1/2

MAM-A Type

Plate type
Applicable
Coupling

Socket

MAM-A-ZEL-4P

MAM-A-ZEL-4S

MAM-A-4P

MAM-A-4S

Plate model of Socket side

Connect position

MAM-A-4S4-CL°)

PortsPlug(654Dimensions (mm)

-Mass: Plug (892 g), Socket (1676 g)

(R1)
17

ø6ø11(117)(When lever is in locked position)

7.5
Valve open position(15)

Disconnect position

Cross section A-A(4 corners)

Plate model of Plug side

41

28

41

61

88
102

25
204x(ø30)
A(10)204x(ø25)

8(18) 15(143)(When lever is in locked position)

85(111.4)25

4xø9(138.5)(152)

MAM-A-4P4-CL

A

41(21.5) 1541

127138147159

55(91.5)(Lever in disconnect position)

Model MAM-A-4P8-CL×MAM-A-4S8-CL (8 Port Type / Plate size : Large)-Application: R 1/2

MAM-A Type

Plate type8

ApplicableCouplingPortsDimensions (mm)

-Mass: Plug (1284 g), Socket (1952 g)

PlugSocket

MAM-A-ZEL-4P

MAM-A-ZEL-4S

MAM-A-4P

MAM-A-4S

Plate model of Socket side

Connect position

MAM-A-4S8-CL°)(65(Rø6ø11(117)(When lever is in locked position)

1)
17

7.5
(15)
Valve open position

Disconnect position

Cross section A-A(4 corners)

Plate model of Plug side

61

28

41

41
197
217

76

A

41

152

208

41

(159)

(145)
8x(ø30)A

106

94(120.4)76(9)8(18) 158x(ø25)

(10)

30

10 10304xø9(149)(When lever is in locked position)
8830
30
10 10

MAM-A-4P8-CL(21.5) 1555
(91.5)(Lever in disconnect position)229

6

Quick Connect Couplings
The logo for CUPLA is registered trademark or a trademark of Nitto Kohki Co., Ltd. in Japan,
the United States and/or certain other countries.

NITTO KOHKI CO., LTD.
Head Office9-4, Nakaikegami 2-chome, Ohta-ku, Tokyo 146-8555, Japan
Tel : +81-3-3755-1111
Fax : +81-3-3753-8791
E-mail : overseas@nitto-kohki.co.jp
Web www.nitto-kohki.co.jp/eISO 9001

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H.Q./R&D Lab

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Specifications and designs are subject to change at any time without notice.

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19DA02- 1