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737 | Thread Conversions | Adaptors & Reducers Available in nickel plated brass, brass, nylon, stainless steel, aluminium

737 Adaptors/ Adapters & Reducers for a Wide Range of Thread Sizes and Types

Adaptors/Adapters & Reducers, Globally Approved, Explosive Atmosphere Cable / Conduit Accessory

  • Used for thread conversion
  • Wide range of thread types & sizes
  • General purpose / industrial version available
  • Equipment interface ‘O’ ring seal available
  • -60°C to +200°C (metallic versions)
  • Globally marked, IECEx, ATEX, UL & cCSAus
  • Reducers Globally marked: – IECEx, ATEX, UL & cCSAus
  • Adaptors Globally marked: – 1 Step up in size: IECEx, ATEX, cCSAus – 2 Step up in size: IECEx, ATEX

In order to select and adaptor/adapters & reducers, using the below dimension tables:

1 ) Select male thread from the left hand column of Table ‘A’
2) Select the female thread size from the top of Table ‘A’, referenced ‘A**’ for adaptor/adapter and ‘R**’ for reducer
3) Using this code reference, please refer to the corresponding dimensions in Table ‘B’

Please contact us if you require assistance with selecting the correct adaptor/adapters & reducers.

Design Specification BS 6121:Part 1:1989, IEC 62444, EN 62444
Enclosure Protection IK10 to IEC 62262 (20 joules) Brass & Stainless Steel Only
ATEX Certificate CML 18ATEX1320X
Code of Protection II 2G Ex db IIC Gb, Ex eb IIC Gb, II 1D Ex ta IIIC Da
IM2 Ex db I Mb, Ex eb I Mb
(II 2G Ex eb IIC Gb, II 1D Ex ta IIIC Da only on Nylon version)
Compliance Standards EN 60079-0,1,7,31
IECEx Certificate IECEx CML 18.0177X, IECEx SIM 15.0002X
Code of Protection Ex db I Mb, Ex eb I Mb, Ex d IIC Gb, Ex eb IIC Gb, Ex ta IIIC Da
(Ex eb IIC Gb , Ex ta IIIC Da only on nylon version)
Compliance Standards IEC 60079-0,1,7,31
cCSAus Certificate 1055233
Code of Protection Class I, Groups A, B, C and D; IP66, 67, 68; Enclosure Type 4X; Class II groups E, F
and G; Class III, Ex de II, Class I, Zone 1, AEx de II;
(Not available in Nylon)
Compliance Standards C22.2 No.0, 0.5, 30, 94,CAN/CSA E60079-0,1, 7, CAN-CSA E61241-1, UL50 Edition
11, UL1203 Edition 4, UL 60079-0,1,7
UL Certificate E214221 (Reducers with NPT or Metric Threads only)
Code of Protection Class I Groups A,B,C,D; Class II Groups E,F,G; Class III
Compliance Standards UL 1203
EAC Certificate C-GB.AA87.B.00487
GOST R Certificate POCC.GB.HA46.H00140
KCs Certificate 14-GA4BO-0249X
CCOE / PESO (India) Certificate P444949
CCC Certificate 2020322313003177
Compliance Standards GB3836.1, 2, 3
INMETRO Approval TÜV 12.1332X
RETIE Approval 03866
UkrSEPRO CU 19.0372X
SANS MS-XPL21804 21.0006X
Marine Approvals LRS: 01/00173, ABS: 17-LD1619350-PDA, BV: 43180/A1 BV 17-LD1619350-PDA
Continuous Operating Temperature -60°C to +200°C (Metallic), -20°C to +60°C (Nylon)
Ingress Protection Rating ** IP66, IP67 & IP68 (when fitted with CMP sealing accessories)
Available Materials Electroless Nickel Plated Brass, Brass, Nylon, Stainless Steel, Aluminium

** Refer to Maintaining a Seal for further information on Ingress Protection Ratings

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Certificates

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737 Selection Table

Click here to view Certification by Size

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TABLE A - MALE THREAD SIZETABLE A - FEMALE THREAD SIZE
METRICNPT
METRICM16M20M25M32M40M50M63M75M90M100½"¾"1"1¼"1½"2"2½"3"3½"4"
M16A01A04A08A03A08
M20R01A05A07A12A05A11A15
M25R05R03A09A14A18R03A09A16A18
M32R06R06R06A17A19A24R06R06A17A19A24
M40R08R08R08R08A20A29A33R08R08R08A21A25A33
M50R10R10R10R10R10A28A35A49R11R11R10R10A27A32A42A52
M63R12R12R12R12R12A37A48A53R12R12R12R12R12A37A44A53
M75R14R14R14R14R16R15A47A55A57R14R14R14R14R14A46A55A61
M90R19R19R17R19A60R18
M100R20R20R20A58
NPT½"R02A06A07A12A02A10A15
¾"R04R04A09A16A22R04A09A16A18
1"R07R07R07A13A19R07R07A17A19A24
1¼"R09R09R09R09A20A23R09R09R09A20A25A30
1½"R10R10R10R11A26A43R10R10R10R10A26A31A41
2"R12R12R12R12R12A36A43R12R12R12R12R12A39A50
2½"R14R14R14R14R13R13A40R14R14R14R14R14R14A45A54
3"R17R19R19R18R19R19A56R17R18R18R18R18R19A51A59A62
3½"R17R20R20R20R20R20R20R20R20R20R20
4"R21R21R21R21R21R21R21R21R21
TABLE B - REDUCERSTABLE B - ADAPTORS
Table A Ref.Across
Flats ‘A’
Across
Corners ‘B’
Table A Ref.Across
Flats ‘A’
Across
Corners ‘B’
Minimum
Bore ‘C’
Table A Ref.Across
Flats ‘A’
Across
Corners ‘B’
Minimum
Bore ‘C’
Table A Ref.Across
Flats ‘A’
Across
Corners ‘B’
Minimum
Bore ‘C’
R0124.026.4A0122.024.29.7A2355.060.532.1A4580.088.060.5
R0227.029.7A0224.026.414.0A2455.060.526.0A4680.088.065.0
R0330.033.0A0324.026.49.7A2555.060.532.0A4784.092.468.0
R0431.534.7A0424.026.410.0A2655.060.538.0A4890.299.253.0
R0531.534.7A0524.026.414.0A2755.060.543.6A4990.299.242.0
R0637.641.4A0627.029.714.0A2859.865.844.2A5095.0104.549.0
R0741.045.1A0730.033.014.0A2960.066.032.1A5195.0104.575.0
R0846.050.6A0830.033.09.7A3065.071.532.0A52100.0110.044.2
R0950.055.0A0930.033.020.0A3165.071.538.0A53100.0110.055.0
R1055.060.5A1030.533.614.0A3265.071.544.2A54100.0110.060.5
R1160.066.0A1131.534.714.0A3370.077.032.0A55100.0110.064.8
R1270.077.0A1236.039.614.0A3470.077.038.0A56100.0110.075.0
R1379.086.9A1336.039.626.0A3570.077.044.2A57110.0121.061.0
R1480.088.0A1437.641.420.0A3670.077.049.0A58110.0121.075.0
R1584.092.4A1541.045.114.0A3770.077.053.0A59110.0121.075.0
R1690.299.2A1641.045.120.0A3870.077.032.1A60110.0121.079.3
R1795.0104.5A1741.045.126.0A3979.086.949.0A61110.0121.068.3
R1898.8108.7A1846.050.620.0A4079.086.960.0A62117.5129.375.0
R19100.0110.0A1946.050.626.0A4180.088.038.0
R20110.0121.0A2046.050.632.1A4280.088.044.2
R21123.0135.3A2150.055.032.0A4380.088.049.0
R22127.0139.7A2250.055.020.0A4480.088.055.0
Additional sizes available upon request
Minimum reducer bore determined by female thread
Dimensions displayed in millimetres

Technical Illustration

Additional Information

The Use of Multiple Adaptors in a Single Entry for Ex Equipment

The IEC 60079-1 standard allows the use of threaded adaptors and reducers for direct entry into Flameproof type ‘d’ enclosures. In future, the female connection threads of the adaptors and/or reducers will be limited to metric or NPT only. When using thread adaptors and reducers or reducer bushings, only one is permitted for any single cable entry of Flameproof type ‘d’ (Ex d) equipment.

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Typical Installation Configurations

The illustrations provided below are indicative of some of the common methods of installation configurations adopted. These are for informative guidance only and relevant site conditions along with any specified National or International codes of practice must always take precedence. The accessories available offer a wide, flexible approach in mounting, sealing and earthing connection provision. Selection and installation according to the Engineering Specification may vary from these illustrations.

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Cable Entries Made Directly into Flameproof Type ‘d’ (Ex d)

The following page contains an illustrative example of Cable Entries Made Directly into Flameproof Type 'd' (Ex d).

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