HRT / HRTO

HRT / HRTO Round MCT

Solution for sealing round entries for multiple cables, pipes and modules. Integrated compression in the frame ensures a snug fit. This seal facilitates installation around existing cables or pipes, effectively sealing circular apertures with precision.

HRT / HRTO description

HTS HRT/HRTO, certified for both civil and marine applications, represents a cutting-edge solution for sealing round entries. This seal, designed to be sealed using standard HF blocks, ensures effective sealing of cables and pipes through a circular aperture.

The HRT/HRTO comprises two halves and an adaptable center for HF block filling, with compression integrated into the seal. Its open-frame design allows for easy installation after cable or pipe laying, providing versatile sealing for multiple cables or pipes passing through a circular aperture in walls or bulkheads/decks. The compression bolts tighten to expand the system radially, eliminating the need for a separate compression system.

Key Features:

  • Designed for installation using HTS Sleeves (welded, bolted, or casted) and standard HF blocks.
  • Manufactured in intumescent elastomer polymer with stainless steel front and back plates, also available in mild steel.
  • Supplied as an open frame for convenient post-installation.
  • Installation requires no extra tools.


With HTS HRT/HRTO, achieve reliable and efficient sealing for circular apertures in diverse applications, ensuring safety and integrity in cable and pipe installations.

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