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How To Order AccessoriesHow To Order >
To determine ordering reference please select from the tables below in the following order:
- Product Type
- Form of Protection
- Thread Form
- Thread Size
- Thread Form (if applicable)
- Thread Size (if applicable)
- Material
When selecting and installing certified electrical equipment and components in potentially Explosive Atmospheres, it is the users responsibility to ensure that the local industry codes of practice are observed and followed, for example EN 60079-14, IEC 60079-14 or NFPA 70 / NEC 500.
Below Example:
737DRT3T25
737 Adaptor – Globally Certified – 1” (M) x ¾” (F) – Nickel Plated Brass complete with O Ring face seal.
View our range of Thread Conversions & Accessories products here ->
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To determine ordering reference please select from the tables below in the following order: Product Type - Form of Protection - Option (if required) - Thread Form - Thread Size - Thread From (if applicable) - Thread Size (if applicable) - Material |
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| Product Type | Form of Protection | Options | Male Thread Form | Male Thread Size | Female Thread Form | Female Thread Size | Material |
| From Product Page | From Table A Below | From Table B Below | From Table C Below | From Table D Below | From Table C Below | From Table D Below | From Table E Below |
| 737 | D | R | T | 3 | T | 2 | 5 |
TABLE A
| Code | Form of Protection |
| D | Group II Globally Certified Ex d / AEx d & Ex e / AEx e |
| E | Group II Increased Safety Ex e / AEx e |
| G | General Purpose/Industrial |
| M | Group I Mining |
TABLE B
| Code | Options |
| A | Type A – Externally secured non tamper-proof Ex d Stopper Plug or Type A – Insulated Adaptor* |
| B | Type B – Internally secured tamper-proof Ex d Stopper Plug or Type B – Insulated Adaptor* |
| R | Optional equipment interface 'O' ring seal |
TABLE C
| Code | Thread Form |
| M | Metric |
| N | NPSM |
| T | NPT |
| P | PG |
| B | BSPP |
| I | Imperial (E.T.) |
| S | BSPT |
TABLE D
| Code | Thread Size | ||||||
| Metric "M" |
NPSM "N" |
NPT "T" |
PG "P" |
BSP "B" |
Imperial "I" |
BSP "S" |
|
| 1A | - | - | 3⁄8" | 7 | - | 1⁄2" | - |
| 1 | 16 | 1⁄2" | 1⁄2" | 9 | 1⁄2" | 5⁄8" | 1⁄2" |
| 2 | 20 | 3⁄4" | 3⁄4" | 11 | 3⁄4" | 3⁄4" | 3⁄4" |
| 3 | 25 | 1" | 1" | 13.5 | 1" | 1" | 1" |
| 4 | 32 | 1 1⁄4" | 1 1⁄4" | 16 | 1 1⁄4" | 1 1⁄4" | 1 1⁄4" |
| 5 | 40 | 1 1⁄2" | 1 1⁄2" | 21 | 1 1⁄2" | 1 1⁄2" | 1 1⁄2" |
| 6 | 50 | 2" | 2" | 29 | 2" | 2" | 2" |
| 7 | 63 | 2 1⁄2" | 2 1⁄2" | 36 | 2 1⁄2" | 2 1⁄2" | 2 1⁄2" |
| 8 | 75 | 3" | 3" | 42 | 3" | 3" | 3" |
| 9 | 90 | 3 1⁄2" | 3 1⁄2" | 48 | 3 1⁄2" | 3 1⁄2" | 3 1⁄2" |
| 10 | 100 | 4" | 4" | - | 4" | 4" | 4" |
Other variations available upon request
Nominal dimensions shown in this table may vary due to material availability. All dimensions shown are in inches unless otherwise stated. Within the parameters of its Explosive Atmosphere certification, CMP Products reserves the right to change the design and/or dimensions of any of the products illustrated without notice. For further information please contact CMP Products
**When ordered with the integral 'O' ring seal the across flats dimension shown may increase to accommodate the 'O' ring.
TABLE E
| Code | Material |
| * | Brass |
| 1 | Aluminium |
| 2 | Nylon |
| 3 | Mild Steel |
| 4 | Stainless Steel 316 |
| 5 | Nickel Plated Brass |
* No material code is required in the ordering reference for brass accessories