These Ex cable and pipe transits are used in high-risk maritime, offshore and land-based environments to minimize danger by preventing the spread of fire, water, gas, chemicals and other hazards substances.
The system consists of a round rubber frame (RGP Ex) and rubber blocks. The RGP Ex system must be installed with a MCT Brattberg sleeve as a kit, and packed with rubber blocks suited for each cable and pipe dimension. The compression bolts are tightened to compress the rubber blocks against cables and pipes to establish a tight seal.
The marking of the equipment and protective system
Group II Category 2GD Ex eb IIC Gb Ex tb IIIC Db Tamb (-40°C to+70°C)
Circular Ex rated multi cable & pipe transits for assembly only in sleeves.
It is available diameters 50, 70, 100, 125, 150, 200 mm, 3", 4", 5", 6", 8" and is packed with MCT Ex Insert blocks. The hardware is available in galvanized or stainless steel (316L).
Sleeves are available in several diameters to suit each RGP size. They can be welded, casted or bolted to a structure. The standard materials are mild steel, stainless steel or aluminum.
Approved RGP's listed below
SFR/SRFB are supplied as kits, complete with drilled holes, bolts, nuts, washers and a gasket or sealing compound.
Reaction to fire:
Class E - EN 13501-1 (CE)
Resistance to fire:
EI 240 & E 240 - EN 13501-2 (CE)
(Contact MCT Brattberg for application details)
Maritime resistance to fire:
Class A0, A60, H0, H60, H120 - IMO FTP Code 2010
5 Bar water pressure load for 60 minutes - DNVGL-CP-0165
- RGP-300: 3 Bar water pressure load for 60 minutes
3 Bar air pressure load for 30 minutes - DNVGL-CP-0165
- RGP-300: 2 Bar air pressure load for 30 minutes
Enclosure degree of protection Nema 250:
3R; 4X; 12 - Nema 250-1st
Enclosure degree of protection IP:
IP65; IP66; IP67; IP68 2 meters 60 min - IEC 60529
MCT Brattberg RGP Ex multi cable/pipe transit system
-40 to +70 degrees C
Component is not intended to be used alone and requires additional consideration when incorporated into other equipment or systems for use in explosive atmospheres (refer to IEC 60079-0)
To achieve the highest standard of safety, a cable or pipe transit must be installed correctly. As there are many different types of frame – which may be either welded, bolted or glued into position – and insert block, it is essential that installers known when to use the most appropriate installation method.
For more information, please view following instructions, videos or download manuals as PDFs.
RGP Ex All contact surfaces between the pipe and the RGP plug must be cleaned carefully prior to installation. Do not use any lubricant on these surfaces. All blocks must be lubricated carefully with MCT Brattberg lubricant. The penetration must not be subjected to pressure for at least 48 hours after installation. This is to allow the pressure to equalise throughout the penetration. It will take more time for the pressure to equalise at temperatures below 20°C.
Note: If the installation is subjected to pressure, all components must be replaced after removal and refitting.
Download pdf instructions
Ex and ATEX requirements are very strict, some Ex Insert blocks may not be approved with certain systems.
Here you find Insert blocks that are approved with RGP Ex.
Following standard blocks in the table are approved:
Following Spare blocks in the table are approved:
Following Addblocks in the table are approved: