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Firestopping High Density Polyethylene Pipe

Firestopping High Density Polyethylene Pipe

May 21, 2020 - Hilti has developed firestop solutions for an increasingly popular nonmetallic pipe: High Density Polyethylene (HDPE). Hilti firestop system C-AJ-2770 has been updated to accommodate HDPE pipe (SDR 11) that can range in size from 1-1/2” to 6”. The solution involves the “tuck-in” method using Hilti CP 648E Wrap Strip.

HDPE pipe uses the standard diameter ratio (SDR) system for sizing pipes. The SDR is the ratio of the pipe outer diameter divided by the pipe wall thickness. With the SDR system, pipes are sized by the outer diameter (OD), which stays constant. At a given OD, the wall thickness can change as indicated by different values of the SDR. It is important to keep in mind that these pipes are still described in terms of nominal diameter in North America, but in regions that use the metric system, the pipes are referred to in terms of the OD in millimeters. This variation with the SDR system of pipes is the main reason why the current lineup of firestop devices is not used – they simply do not fit as they are designed for pipes using the schedule system. Hence, the use of Hilti CP 648E Endless Wrap Strip is very common with pipes using the SDR system.

Download C-AJ-2770
Through penetration firestop systems tested to withstand movement

Decking 202 Firestopping Webinar Now Available On-Demand

May 19, 2020 - Composite decks offer an economical and efficient solution for creating floor slabs on a variety of projects. Along with structural and non-structural considerations, all decks require penetrations for services. The methods for creating these penetrations can affect the structural integrity of the deck. This presentation will examine the applications and practical implications of designing for penetrations in composite metal decks.

DECKING 202: DESIGN METHODOLOGY FOR PENETRATIONS THROUGH COMPOSITE DECK, an NCSEA accredited webinar, focuses on understanding structural and non-structural considerations for composite metal decks and how penetrations affect their structural integrity. A key focus of the presentation is addressing firestopping methods for these applications.

Watch the on-demand webinar
Through penetration firestop systems tested to withstand movement

Through penetration firestop systems tested to withstand movement

April 24, 2020 - Over the life of a building, movement occurs - causing a penetrating item of a through penetration to move relevant to the hole, even when rigidly supported. This may impact the performance of a rated firestopping assembly. It’s important to have a method to consider movement and the impact on firestopping.

Hilti is the first manufacturer to have UL certified firestop systems with movement capability of the system tested and documented in the respective UL listings. We have successfully tested and certified a variety of our systems, from those that use sealants, such as FS-ONE Max, to preformed devices, such as the speed sleeve CP 653 or firestop blocks CFS-BL.

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