RGB
These cable and pipe transits are used in high-risk land-based environments to minimize danger by preventing the spread of fire, water, gas, chemicals and other hazardous substances. RGB frame type is casted into a concrete wall or floor.
For installations where cables are already in place, specify RGBO, which has a removable end.

Correct and safe installations
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.
Instruction documents
For more information visit Instructions and manuals
The standard transit in mild steel, stainless steel or aluminium. The mild steel transits are supplied with two types of surface finish, primer or galvanized.
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).
Pipe Transits
All the frames can be manufactured in combinations.
Note that there can be limitations in type-approvals & certificates, making certain sizes inapplicable
Please see information drawings for detailed data.
For size and weight please see tables in the MCT Online Catalogue:
RGB 2
RGB 8
The system consists of a frame, rubber blocks and a compression unit. The frame is casted or bolted to a 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.
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Stayplate
To be placed between each row of blocks.
See specs and variations for Stayplate
STG Endpacking
Installed between compression plate and the top of the frame.
See specs and variations for STG Endpacking
PTG Presswedge
Can be installed anywhere in the frame.
See specs and variations for PTG Presswedge
Standard Block
Designed to seal cables and pipes with diameters from 3.5 – 110 mm (0.14-4.33”). Other dimensions can be supplied to order.
See specs and variations for Standard Block
HandiBlock
Newly developed. Provides greater flexibility, simple and safe installation.
See specs and variations for HandiBlock
AddBlock
Available in eleven block sizes and 66 cable dimensions.
See specs and variations for AddBlock
SpareBlock
Unused space in the frame is filled with solid spare blocks.
See specs and variations for SpareBlock
U-Block
Used to enlarge the external dimensions of blocks to the next modular size.
See specs and variations for U-Block
Waveguides
Installed in a solid insert block. Available with a revolving core for increased flexibility.
See specs and variations for Waveguides
Standard Trefoil Block
Designed to seal three holes in one block.
See specs and variations for Standard Trefoil Block
Blanking Plate
Ingress protection IP65/66
See specs and variations for Blanking Plate
Lubricant
Shall be applied on all Lycron parts sealing surfaces when such demands exist
See specs and variations for Lubricant
Packing Tool Large/Small
Packing Tool L/S
See specs and variations for Packing Tool Large/Small
STG Endpacking Puller
For re-entry into system
See specs and variations for STG Endpacking Puller
Quick Release Spanner
For compression plate installation
See specs and variations for Quick Release Spanner
Cable Separator
To aid installation of insert blocks by keeping away the interference of cables
See specs and variations for Cable Separator
Spacer Tool
Spacer Tool
See specs and variations for Spacer Tool
Block Selector
For cable and pipe measurement. Insert blocks, add blocks and HandiBlocks.
See specs and variations for Block Selector
Tweezers
Assist insertion of last block in each row
See specs and variations for Tweezers