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Blocks
The Hawke colour coded block system provides total inspectability of the transit installation even after assembly has been completed.
On each of the two exposed block faces minimum and maximum diameters are clearly marked. This indicates the specific sealing range of the block size.
Each individual block has a colour coded face, this ensures that each size and pair of tolerant block halves is always correctly matched to the cable diameter.
Hawke´s unique inspectable colour coded blocks ensure that the top and bottom half of each block has been correctly matched for size.
Hawke cable/pipe tolerant blocks have been designed with a degree of flexibility in order to accommodate variances in cable diameters. Additionally this flexibility enables each Hawke block size to accept a range of cable or pipe diameters.
Available in seven block sizes accomodating service diameters from 3 mm to 100 mm, Hawke Blocks are marked with minimum and maximum cable diameters e.g. block size to accept cable diameters from 18 mm up to maximum of 21 mm.
In practise this means that a small number of blocks can accomodate the full range of standard cable sizes. There is less inventory to manage and the installation procedure is much faster and simpler than competing systems.
Filler Blocks
Filler Blocks are made of zero halogen, intumescent elastomeric polymer. They are used to fill spaces within the frame which are not required for services, thus allowing spare capacity for future requirements.
Filler Blocks are available in the same materials as the tolerant Blocks.They are used to fill spaces within the frame which are not required for services, thus allowing spare capacity for future requirements.
The cable range is shown on the end of each block and indicates the maximum and minimum cable and/or pipe sizes , example 18/21 = 18mm min. 21mm max. For ease of reference each block is colour coded.
Tolerant Insert Blocks
Hawke Colour Coded tolerant blocks. Immediate Inspectability. Typical sealing range of 4mm for use with circular cables and pipes No on-site modificatiion required Inserts for EMC applications and Bespoke insert blocks now available.
Made of zero halogen, intumescent elastomeric polymer. Hawke tolerant blocks are produced in modular form to accommodate cables and/or pipe sizes ranging from 3mm to 100mm in diameter.
EMC Tolerant insert and filler blocks
Hawke’s EMC are blocks with Electronic Compatibility and they are made from an intumescent flame retardant elastomer coated on all surfaces with a silver loaded spray which is highly conductive and provides the excellent shielding ability. In addition, a layer of adhesive copper strip is applied around the block to aid conductivity. Hawke blocks can accommodate cables ranging from 3mm to 100mm diameter, and include tolerant blocks which allow for variations in cable diameters by using five individual sealing faces which take up the cable variations within
