RGSFB Ex is for bolting. The bolted transits can be used in areas where welding is prohibited, or when the stress level induced by welding is unacceptable.
For installations where cables are already in place, specify RGSFBO Ex which has a removable end.
The system consists of a frame, rubber blocks and a compression unit.
The frame is or bolted to a marine structure and packed with rubber blocks suited for each cable and pipe dimension. The compression unit is inserted 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 (-60°C to+70°C)
RGSFB Ex is a standard transit with a flange and Ex gasket that allows the frame to be bolted where welding is not possible.
Standard frames come in eight sizes: 1, 2, 3, 4, 5, 6, 7, and 8.
The internal width can be 60.5 ± 1 (Size 1,3,5,7) or 120.5 ± 1 (2,4,6,8).
Note that there can be limitations in type-approvals & certificates, making certain sizes inapplicable.
RGSFB Ex can also be installed in multiple frames.
RGSFB Ex transits are supplied in kits, complete with drilled holes, bolts, nuts, washers and a gasket or sealing compound. The flange is 60x10mm. (2.36”x0.39”).
Standard frames come in four sizes: 2, 4, 6 and 8. They are all the same width. Height differences are shown below. The material is 10 mm thick.
For size and weight please see tables in the MCT Online Catalogue:
Maritime resistance to fire:
Class A0, A60, H0, H60, H120 - IMO FTP Code 2010
(For more info see Certificates)
Water-tightness:
6 Bar water pressure load for 60 minutes - DNVGL-CP-0165
Gas-tightness:
4 Bar air pressure load for 30 minutes - DNVGL-CP-0165
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
Resistance to jet fire:
RGSbtb- J120 & JF
RGS - J60 & JF
(Contact MCT Brattberg for application details)
Trade name:
MCT Brattberg RGSFB Ex multi cable/pipe transit system
Variations:
See TECH SPECS
Working temperature:
-60 to +70 degrees C
Read Lycron data sheet:
Data sheet Lycron
Lycron is halogen free and flame retardant.
For all approvals, please also see Certificates
Component:
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.
Download pdf instructions
For more information visit Documents & instructions
HORIZONTAL MULTIPLE FRAMES
Horizontal multiple frames are described by listing the frame type and size x the desired number of horizontal openings.
Designation (starting at bottom):
Frame type 6x4
VERTICAL MULTIPLE FRAMES
Vertical multiple frames are described by listing the bottom frame type and size + the next frame type and size.
Designation (starting at bottom):
(frame type) 6+6+4 and (frame type) 6+4+2
VERTICAL AND HORIZONTAL MULTIPLE FRAMES
List the entire vertical frames x the desired number of horizontal repetitions.
Designation (starting at bottom):
(frame type) 6+4+2x4
NOTE: All multiple frame designations must be preceded by the frame type.
Ex and ATEX requirements are very strict, some Ex Insert blocks may not be approved with certain systems.
The U-Block is used to convert the external dimensions of Insert Blocks, AddBlocks and Spare Blocks to the next modular size.
Read moreThe unused space in the frame is filled with solid spare blocks. Using the spare blocks allows the option of fitting new cable in the future.
Read more