Available in brass, nickel plated brass, aluminium, stainless steel & nylon
781 Breather Plug & Drain Plugs Breather Plug & Drain Plugs, Globally Approved, Explosive Atmosphere Cable / Conduit Accessory
• 781E for Ex e use
• 781D for Ex d use
• Drains equipment susceptible to moisture collection
• Enables equipment to breathe
• General purpose / industrial version available
• Nylon Ex e only version available (-20°C to +60°C)
• -60°C to 130°C (metallic versions)
• Globally marked, IECEx, ATEX & cCSAus
HOW TO ORDER A guide on how to order Breather Plug & Drain Plugs from CMP: e.g. 781 – D – M – 3 = Ex d – M25 e.g. 781 – E – M – 3 = Ex e – M25 Other Thread Variations are available on request. Serrated washers are not included as standard but can be ordered separately.
Product Selection Table
| Ordering Reference (781D) |
Ordering Reference (781E) |
Thread Size | Minimum Thread Length | Protrusion Length ‘F’ | Across Flats Dimension | Across Corners Dimensions | Max Installation Torque (Nm) |
| 781DM2 | 781EM2 | M20 x 1.5 | 15.0 | 12.7 | 30.0 | 33.0 | 7 |
| 781DM3 | 781EM3 | M25 x 1.5 | 15.0 | 12.7 | 36.0 | 39.6 | 10 |
| 781DT1 | 781ET1 | ½’ NPT | 19.9 | 12.7 | 30.0 | 33.0 | 7 |
| 781DT2 | 781ET2 | ¾’ NPT | 20.2 | 12.7 | 36.0 | 39.6 | 10 |
| Dimensions displayed in millimeters unless otherwise stated | |||||||
Product Selection Table
| Ordering Reference (781D) |
Ordering Reference (781E) |
Thread Size | Minimum Thread Length | Protrusion Length ‘F’ | Across Flats Dimension | Across Corners Dimensions | Max Installation Torque (Nm) |
| 781DM2 | 781EM2 | M20 x 1.5 | 15.0 | 12.7 | 30.0 | 33.0 | 7 |
| 781DM3 | 781EM3 | M25 x 1.5 | 15.0 | 12.7 | 36.0 | 39.6 | 10 |
| 781DT1 | 781ET1 | ½’ NPT | 19.9 | 12.7 | 30.0 | 33.0 | 7 |
| 781DT2 | 781ET2 | ¾’ NPT | 20.2 | 12.7 | 36.0 | 39.6 | 10 |
| Dimensions displayed in millimeters unless otherwise stated | |||||||
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