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789 | 90 Degree Union Available in brass, nickel plated brass, aluminium, stainless steel
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90° Union, Globally Approved, Explosive Atmosphere Cable / Conduit Accessory
• Allows the connection of conduit or glands to equipment
• Suitable for rigid or flexible conduit
• Integral coupling eliminates the need to rotate the conduit
• General Purpose / industrial version available
• Equipment interface ‘O’ ring seal available
• -60°C to 200°C
• Globally marked, IECEx, ATEX & cCSAus
Note: Male-to-Male to Female-to-Female thread option available.
Available with an equipment interface ‘O’ ring seal. For such options please add the suffix letter “R” after the type number in the ordering reference above, e.g. 789RDM2M2.
If 2 separate enclosures are required to be connected together please contact CMP Products.
| Design Specification | BS 6121:Part 1:1989, IEC 62444, EN 62444 |
| Enclosure Protection | IK10 to IEC 62262 (20 joules) Brass & Stainless Steel only |
| GOST R Certificate | POCC.GB.HA46.H00140 |
| ATEX Certificate | CML 18ATEX1329U |
| UKEX Certificate | CML 21UKEX1242U |
| Code of Protection | II 2G 1D Ex db IIC Gb, Ex eb IIC Gb, Ex ta IIIC Da IP6X IM2 Ex db I Mb / Ex eb I Mb |
| Compliance Standards | EN 60079-0,1,7,31 |
| IECEx Certificate | IECEx CML 18.0186U |
| Code of Protection | Ex db IIC Gb, Ex eb IIC Gb, Ex db I Mb, Ex eb I Mb, Ex ta IIIC Da IP6X |
| Compliance Standards | IEC 60079-0,1,7,31 |
| cCSAus Certificate | 1055233 |
| Code of Protection | Class I, Div 1 & 2, Groups A,B,C,D ; Enclosure type 4X : Class I, Zone 1, AEx de II ; Ex de II |
| Compliance Standards | C22.2 No.0,0.5,30,94, CAN/CSA E60079-0,1,7, CAN/CSA E61241-1, UL Std 50, 1203, UL 60079-0,1,7 |
| EAC Certificate (Formerly GOST R, K & B) | C-GB.A07.B.04602/22 |
| INMETRO Approval | TÜV 12.1334U |
| RETIE Approval | 03866 |
| UkrSEPRO | CU 19.0370X |
| CCOE / PESO (India) Certificate | Ex d: P548696, Ex e: P533772 |
| CCC Certificate | 2020322313003177 |
| SANS | MS-XPL21804 21.0013U |
| Lateral Load Test | LRS: 01/00173 |
| Ingress Protection Rating ** | IP66 when fitted with a CMP ‘O’ ring or Entry Thread Seal |
| Available Materials | Brass (standard), Electroless Nickel Plated Brass, Aluminium, Stainless Steel |
| ECAS Certificate | 24-03-106290/E24-03-110155/NB0007 |
** When CMP installation accessories are used. Refer to Maintaining a Seal for further information.
Certificates
Product Selection Table
Click here to view how to order
| Metric | NPT | Bore Diameter '"C" | Max Protrusion Length '"D'" | Max Overhang Length "'F" | Across Flats Hex '"G'" | Across Corners Ø '"G'" | Installation Torque (Nm) | Weight (Ozs) | ||||||
| Ordering Reference (Brass, Metric) | Male Forward Thread Size '"A'" | Minimum Thread Length '"E'" | Female Rear Thread Size "'B'" | Ordering Reference (Brass, NPT) | Male Forward NPT Thread Size '"A'" | Minimum NPT Thread Length "'E"' (in) | Female Rear Thread Size "'B'" |
|||||||
| 789DM2M2 | M20 X 1.5 | 0.59 | M20 X 1.5 | 789DT1T1 | 1/2" | 0.79 | 1/2" | 0.56 | 2.48 | 2.51 | 1.81 | 1.99 | 7 | 12.35 |
| 789DM3M3 | M25 X 1.5 | 0.59 | M25 X 1.5 | 789DT2T2 | 3/4" | 0.80 | 3/4" | 0.79 | 2.78 | 2.74 | 1.97 | 2.17 | 10 | 15.87 |
| 789DM4M4 | M32 X 1.5 | 0.59 | M32 X 1.5 | 789DT3T3 | 1" | 0.98 | 1" | 1.04 | 2.98 | 3.07 | 2.36 | 2.60 | 15 | 20.81 |
| 789DM5M5 | M40 X 1.5 | 0.59 | M40 X 1.5 | 789DT4T4 | 1 14" | 1.01 | 1 14" | 1.28 | 3.30 | 3.34 | 2.56 | 2.81 | 25 | 26.10 |
| 789DM6M6 | M50 X 1.5 | 0.59 | M50 X 1.5 | 789DT5T5 | 1 1/2" | 1.03 | 1 1/2" | 1.69 | 3.78 | 3.79 | 2.95 | 3.25 | 30 | 37.04 |
| 789DM7M7 | M63 X 1.5 | 0.59 | M63 X 1.5 | 789DT6T6 | 2" | 1.06 | 2" | 2.17 | 4.28 | 4.53 | 3.55 | 3.91 | 45 | 53.62 |
| All dimensions shown are in inches unless otherwise stated | ||||||||||||||
| Metric | NPT | Bore Diameter "'C"' | Max Protrusion Length "D'" | Max Overhang Length '"F'" | Across Flats Hex '"G'" | Across Corners Ø '"G"' | Installation Torque (Nm) | Weight (Kgs) | ||||||
| Ordering Reference (Brass, Metric) | Male Forward Thread Size '"A'" | Minimum Thread Length "'E'" | Female Rear Thread Size '"B'" | Ordering Reference (Brass, NPT) | Male Forward NPT Thread Size '"A'" | Minimum NPT Thread Length "'E"' (in) | Female Rear Thread Size "'B'" |
|||||||
| 789DM2M2 | M20 X 1.5 | 15.0 | M20 X 1.5 | 789DT1T1 | 1/2" | 0.79 | 1/2" | 14.3 | 62.9 | 63.8 | 46.0 | 50.6 | 7 | 0.35 |
| 789DM3M3 | M25 X 1.5 | 15.0 | M25 X 1.5 | 789DT2T2 | 3/4" | 0.80 | 3/4" | 20.1 | 70.6 | 69.5 | 50.0 | 55.0 | 10 | 0.45 |
| 789DM4M4 | M32 X 1.5 | 15.0 | M32 X 1.5 | 789DT3T3 | 1" | 0.98 | 1" | 26.4 | 75.7 | 78.0 | 60.0 | 66.0 | 15 | 0.59 |
| 789DM5M5 | M40 X 1.5 | 15.0 | M40 X 1.5 | 789DT4T4 | 1 1/4" | 1.01 | 1 14" | 32.6 | 83.7 | 84.8 | 65.0 | 71.5 | 25 | 0.74 |
| 789DM6M6 | M50 X 1.5 | 15.0 | M50 X 1.5 | 789DT5T5 | 1 1/2" | 1.03 | 1 1/2" | 43.0 | 95.9 | 96.3 | 75.0 | 82.5 | 30 | 1.05 |
| 789DM7M7 | M63 X 1.5 | 15.0 | M63 X 1.5 | 789DT6T6 | 2" | 1.06 | 2" | 55.0 | 108.8 | 115.1 | 90.2 | 99.2 | 45 | 1.52 |
| All dimensions shown are in millimetres unless otherwise stated | ||||||||||||||
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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