Yates - Zipper Screamer
The Yates Zipper Screamer is designed for long falls with high fall factors. These types of falls occur usually within the first two or three protection placements that are run out. Ice climbing is a good example where the ZIPPER is exceptionally effective when used on the first few placements.
The ZIPPER can effectively reduce peak loads by 6-8kn in any climbing system. Screamers and Zippers have proven to be very successful in reducing loads to any anchor when it is stressed in excess of the activation force of the Screamer device. * When the Screamer activates, the action of the stitch ripping produces a loud tearing sound, indicating the system has reached the activation point of the Screamer(>2 kN). The activation point of a Screamer is consistently repeatable to +- 5% accuracy. (Screamers are very useful in documenting maximum loads in a given situation, such as their use in Rescue.) Screamers can be combined in series to double or triple the total absorption. Screamers can also be ganged to increase activation force and absorption.