737 Adaptor / Reducer


Adaptor

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Thread Conversion Adaptor & Reducer Type 737 with Flameproof Ex d IIC & Increased Safety Ex e II forms of protection.

The CMP Type 737 range of Thread Conversion Adaptors & Reducers is designed to provide flexibility and versatility in the execution of construction works when there is a conflict between the type or size of the cable gland thread and the cable entry hole in the equipment. These Thread Conversion Adaptors & Reducers are available with Male to Female connection threads and can be supplied with thread conversion between the forward and rear threads to either an increased or reduced size or a different thread type, e.g. Metric to NPT, or NPT or Metric. Please refer to the Product Selection Table For 737 Adaptors and Reducers listed as a PDF below.

CMP 737 Thread Conversion Adaptors & Reducers are available in Brass, Aluminium Stainless Steel or Nylon and can be supplied for both Industrial and Hazardous Area applications, with Ex "d" & Ex "e" Component Approval (Nylon Version is Ex e only).

The CMP 737 Adaptor & Reducer range is also optionally available with an integral "O" Ring seal when the male thread is parallel.

TECHNICAL DATA
Please click a logo to display it's certification information
cCSAus Approval Certificate No. 1055233
cCSAus Code of Protection Category Ex de II; Class I, Groups A, B, C and D; Class I, Zone 1, AEx de II; IP66, 67, and 68, Enclosure Type 4X (Not available in Nylon)
cCSAus Compliance Standards C22.2 No. 0.5-M1982, C22.2 No. 30-M1986, C22.2 No. 94-M1991,CAN/CSA E60079-0:07, CAN/CSA E60079-1:07,CAN/CSA E60079-7:02, UL Standard 50, Eleventh Edition, UL Standard 1203, Fourth Edition, UL 60079-0, Fourth Edition, UL 60079-1, Fifth Edition, UL 60079-7, First Edition
GOST R Certificate Number POCC GB.HO06.B00207
GOST R Code of Protection Category Ex d IIC / Ex e II / DIP A21 (Ex e II only on Nylon version)
GOST R Compliance Standards ГOCT P 52350.0-2005, ГOCT P 52350.1-2005,
ГOCT P 52350.7-2005, ГOCT MЭK 61241-1-1-99
GOST GGTN Permit PPC 00-40706
GOST K Certificate Number KZ 75000361 01 01 14761
RoK Permit For Use Number 19-02-UL-1957
Lloyds Approval No. 01/00173
DNV Approval No. E-10496
ABS Approval No. 01-LD234401C/1-PDA
INMETRO Approval Certificate Number. TUV 12.1332 X
INMETRO Code of Protection Category BR-Ex d IIC / BR-Ex e II (BR-Ex e II only on Nylon version)
INMETRO Compliance Standards ABNT NBR IEC 60079-0:2006, IEC 60079-1:2007 e IEC 60079-2007:2001
NEPSI Certificate Number GYJ091017X
NEPSI Code of Protection Category Ex d IIC / Ex e II (Ex e II only on Nylon version)
NEPSI Compliance Standards GB3836.1-2000, GB3836.2-2003, GB3836.3-2000
RETIE Approval Number 03866
Type 737
Design Specification EN 50262:1989, BS 6121:Part 1:1989
ATEX Certification Detail SIRA02ATEX1003X, SIRA01ATEX1284U
ATEX Code of Protection Category ATEX Approved II 2 GD Ex d IIC & Ex e II ATEX Approved IM2 Ex d I, Ex E I
ATEX Compliance Standards EN 60079-0, EN 60079-1, EN 60079-7, EN 50281-1-1
IEC Ex Certification Detail IEC Ex SIR07.0052X
IEC Ex Code of Protection Category Ex d I, Ex e I, Ex d IIC, Ex e II, Ex tD A21 IP6X (Ex e II only on Nylon version)
IEC Ex Compliance Standards IEC 60079-0, IEC 60079-1, IEC 60079-7, IEC 61241-0, IEC 61241-1
Continuous Operating Temperature -60°C to +200°C (Metallic), -20°C to +60°C (Nylon)
Ingress Protection Rating IP66 or IP68 when fitted with a CMP “O” Ring or Entry Thread Seal
Material Brass, Electroless Nickel Plated Brass, Aluminium, Stainless Steel
Accessories Serrated Washer, Earth Tag, Locknut, Entry Thread Sealing Washer
HOW TO ORDER –
e.g. 737-D-M-2-M-3-4 = Dual Certified Ex d & Ex e – M20 – (M) x M25 (F) - Stainless Steel

Marked with ATEX, IECEx and cCSAus certification details as standard. Please refer to Ordering Guide Tables for reference definitions, denoting material variants. When ordering please notify CMP Products in your order if alternative approval markings are required.

Note: When ordering Adaptors & Reducers always state the Male Thread size first.

Please refer to the Product Selection Table and the Ordering Definitions (detailed under Additional Information) for reference definitions. Other Thread Variations are available on request. Please refer to Product Selection Table (detailed under Additional Information) for dimensions.


It should be noted that when using CMP Type 737 Thread Conversion Adaptors and Reducers in association with Explosion Protected electrical equipment the following basic rules must be observed in line with good engineering practice:-

  • No more than one conversion adaptor or reducer should be used at one time on any given cable entry.
  • Stopping plugs should be fitted directly into unused entries of the equipment, and not into an adaptor or reducer.
  • The female connection thread of a Thread Conversion Adaptor shall ‘step’ not more than two ‘size’ up in the case of a thread gender change.

Example ; M20 (M) to M32 (F) or M20 (M) to 1” NPT (F) is permitted
Where as M20 (M) to M40 (F) or M20 (M) to 1-1/2” NPT (F) is not permitted

737 ADAPTOR DETAIL A01 A02 A03 A04 A05 A06 A07 A08 A09 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 A23 A24 A25
Across Flats Dimension "A" 24.0 24.0 24.0 30.0 30.0 30.0 30.0 36.0 36.0 36.0 46.0 46.0 46.0 46.0 55.0 55.0 55.0 55.0 55.0 65.0 65.0 65.0 65.0 70.0 70.0
Across Corners Diameter "B" 26.4 26.4 26.4 33.0 33.0 33.0 33.0 39.6 39.6 39.6 50.6 50.6 50.6 50.6 60.5 60.5 60.5 60.5 60.5 71.5 71.5 71.5 71.5 77.0 77.0
Male Min Thread Length (Metric) "C" 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 19.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0
Male Min Thread Length (NPT) "C" - - 19.9 - - 19.9 20.2 19.9 20.2 25.0 19.9 20.2 25.0 25.6 - 25.0 25.6 26.1 - 25.6 26.1 - 26.9 25.6 26.1
Female Thread Length (Metric) "D" 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0
Female Thread Length (NPT) "D" 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 17.0 17.0 17.0 17.0 - 17.0 17.0 17.0 17.0 17.0 17.0 17.0 17.0 - -
Protrusion Length "F" 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0
Nominal Bore "G" 8.0 10.0 14.0 8.0 10.0 14.0 20.0 14.0 20.0 26.0 14.0 20.0 26.0 32.0 20.0 26.0 32.0 38.0 44.0 32.0 38.0 44.0 49.0 32.0 38.0
737 ADAPTOR DETAIL A26 A27 A28 A29 A30 A31 A32 A33 A34 A35 A36 A37 A38 A39 A40 A41 A42 A43 A44 A45 A46 A47 A48 A49 A50
Across Flats Dimension "A" 70.0 70.0 70.0 80.0 80.0 80.0 80.0 85.0 85.0 85.0 85.0 85.0 100.0 100.0 100.0 100.0 100.0 115.0 115.0 115.0 115.0 115.0 123.0 123.0 123.0
Across Cormers Diameter "B" 77.0 77.0 77.0 88.0 88.0 88.0 88.0 93.5 93.5 93.5 93.5 93.5 110.0 110.0 110.0 110.0 110.0 126.5 126.5 126.5 126.5 126.5 135.3 135.3 135.3
Male Min Thread Length (Metric) "C" 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 20.0 20.0 15.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 22.0 24.0
Male Min Thread Length (NPT) "C" - 26.9 - 26.1 - 26.9 39.9 26.1 - 26.9 39.9 - 26.9 39.9 - 41.5 - 39.9 - 41.5 42.8 - 41.5 42.8 44.0
Female Thread Length (Metric) "D" 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0 16.0
Female Thread Length (NPT) "D" - 17.0 - 23.0 23.0 23.0 23.0 - - - - 23.0 25.0 25.0 25.0 25.0 25.0 36.5 36.5 36.5 36.5 36.5 36.5 36.5 36.5
Protrusion Length "F" 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 24.0 24.0 24.0 24.0 24.0 24.0 35.0 35.0 35.0 35.0 40.0 40.0 40.0
Nominal Bore "G" 44.0 49.0 56.0 38.0 44.0 49.0 56.0 38.0 44.0 49.0 56.0 68.0 49.0 56.0 68.0 75.0 80.0 56.0 68.0 75.0 80.0 90.0 75.0 80.0 90.0
737 REDUCER DETAIL R01 R02 R03 R04 R05 R06 R07 R08 R09 R10 R11 R12  
Across Flats Dimension "A" 24.0 30.0 36.0 46.0 55.0 65.0 70.0 80.0 85.0 100.0 115.0 123.0  
Across Cormers Diameter "B" 26.4 33.0 39.6 49.5 60.5 71.5 77.0 96.8 93.5 110.0 126.5 135.3
Male Min Thread Length (Metric) "C" 15.0 15.0 15.0 15.0 16.3 15.0 15.0 15.0 15.0 22.0 22.0 22.0
Male Min Thread Length (NPT) "C" 19.9 20.2 25.0 25.6 26.1 26.9 - 39.9 - 41.5 42.8 44.0
Protrusion Length "F" 8.0 8.0 8.0 8.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0
Please note - Figures for guidance only - please contact CMP for further details
Female Thread Size
Metric NPT & BSPP PG
M16 M20 M25 M32 M40 M50 M63 M75 M90 M100 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2" 3" 3-1/2" 4" PG7 PG9 PG11 PG13.5 PG16 PG21 PG29 PG36 PG42 PG48
METRIC
M16 A02 A02 A05 A02 A05 R01 A02 A02 A02 A05
M20 R01 A03 A06 A08 A03 A06 A08 R01 R01 A03 A03 A06 A08 A11
M25 R02 R02 A07 A09 A12 R02 A07 A09 A12 R02 R02 R02 R02 A07 A09 A12
M32 R03 R03 R03 A10 A13 A16 R03 R03 A10 A13 A16 R03 R03 R03 R03 R03 A10 A13 A16
M40 R04 R04 R04 R04 A14 A17 A24 R04 R04 R04 A14 A17 A20 R04 R04 R04 R04 R04 R04 A14 A17 A20 A24
M50 R05 R05 R05 R05 R05 A19 A26 A34 R05 R05 R05 R05 A19 A22 A30 R05 R05 R05 R05 R05 R05 R07 A19 A22 A26
M63 R07 R07 R07 R07 R07 R07 A28 A36 A39 R06 R06 R06 R06 R06 A28 A32 A39 R07 R07 R07 R07 R07 R07 R07 R07 R07 A28
M75 R09 R09 R09 R09 R09 R09 R09 A37 A40 A44 R07 R07 R07 R07 R07 R07 A37 A40 A44 R09 R09 R09 R09 R09 R09 R09 R09 R09 R09
M90 R10 R10 R10 R10 R10 R10 R10 R10 A42 A46 R08 R08 R08 R08 R08 R08 R08 A42 A46 A49 R10 R10 R10 R10 R10 R10 R10 R10 R10 R10
M100 R11 R11 R11 R11 R11 R11 R11 R11 R11 A47 R09 R09 R09 R09 R09 R09 R09 R09 A47 A50 R11 R11 R11 R11 R11 R11 R11 R11 R11 R11
NPT & BSPP
1/2" R01 A03 A06 A08 A03 A06 A08 R01 R01 A03 A03 A06 A08 A11
3/4" R02 R02 A07 A09 A12 R02 A07 A09 A12 R02 R02 R02 A07 A07 A09 A12
1" R03 R03 R03 A10 A13 A16 R03 R03 A10 A13 A16 R03 R03 R03 R03 R03 A10 A13 A16
1-1/4" R04 R04 R04 R04 A14 A17 A24 R04 R04 R04 A14 A17 A20 R04 R04 R04 R04 R04 R04 A14 A17 A20
1-1/2" R05 R05 R05 R05 R05 A18 A25 A33 R05 R05 R05 R05 A18 A21 A29 R05 R05 R05 R05 R05 R05 R05 A18 A21 A25
2" R06 R06 R06 R06 R06 R06 A27 A35 A38 R06 R06 R06 R06 R06 A23 A31 A38 R06 R06 R06 R06 R06 R06 R06 R06 R06 A27
2-1/2" R08 R08 R08 R08 R08 R08 R08 A36 A39 A43 R08 R08 R08 R08 R08 R08 A32 A39 A43 R08 R08 R08 R08 R08 R08 R08 R08 R08 R08
3" R10 R10 R10 R10 R10 R10 R10 R10 A41 A45 R10 R10 R10 R10 R10 R10 R10 A41 A45 A48 R10 R10 R10 R10 R10 R10 R10 R10 R10 R10
3-1/2" R11 R11 R11 R11 R11 R11 R11 R11 A46 R11 R11 R11 R11 R11 R11 R11 R11 A46 A49 R11 R11 R11 R11 R11 R11 R11 R11 R11 R11
4" R12 R12 R12 R12 R12 R12 R12 R12 R12 R12 R12 R12 R12 R12 R12 R12 R12 R12 R12 A50 R12 R12 R12 R12 R12 R12 R12 R12 R12 R12
PG
PG7 A01 A01 A04 A01 A04 A01 A01 A01 A01 A04
PG9 A02 A02 A05 A02 A05 A02 A02 A02 A02 A05
PG11 A03 A03 A06 A08 A03 A06 A08 A03 A03 A03 A03 A06 A08
PG13.5 A03 A03 A06 A08 A03 A06 A08 R01 R01 A03 A03 A06 A08 A11
PG16 R02 A06 A06 A08 A11 A06 A06 A08 A11 R02 R02 R02 A06 A06 A08 A11
PG21 R03 R03 A09 A09 A12 A15 R03 A09 A09 A12 R03 R03 R03 R03 A09 A09 A12 A15
PG29 R04 R04 R04 R04 A14 A17 A24 R04 R04 A14 A14 A17 A20 R04 R04 R04 R04 R04 R04 A14 A17 A20
PG36 R05 R05 R05 R05 R05 A18 A25 A33 R05 R05 R05 A18 A18 A21 R05 R05 R05 R05 R05 R05 R05 A18 A21 A25
PG42 R06 R06 R06 R06 R06 A22 A26 A34 R06 R06 R06 R06 R06 A22 A30 R06 R06 R06 R06 R06 R06 R06 R06 A22 A26
PG48 R07 R07 R07 R07 R07 R07 A27 A35 A38 R07 R07 R07 R07 R07 A27 A31 A38 R07 R07 R07 R07 R07 R07 R07 R07 R07 A27

Additional information

CMP WP 737_0511