S Tec (Safe Tec Industria) manufactures professional height safety equipment and rope access devices, including the FLOW series of self-locking descenders.
S Tec, known formally as Safe Tec Industria, is a Brazilian manufacturer specializing in personal protective equipment (PPE) for work at heights and rope rescue operations.
The brand is best known for its "FLOW" line of descenders, designed for industrial rope access, tactical applications, and adventure sports. S Tec products are engineered to meet rigorous international safety standards, such as EN 12841 and EN 341, ensuring reliability for professionals operating in vertical environments. The company focuses on creating robust, manual-locking devices that offer controlled descent and positioning capabilities for specialized users.
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The S Tec FLOW series (D05, D06, D07) is designed for use with low stretch ropes (EN 1891 Type A) with diameters between 10.5mm and 11.5mm.
In addition to pre-use and post-use checks by the user, formal thorough inspections by a competent person are required at intervals not exceeding 6 months. Heavy use or arduous conditions may require more frequent inspections.
The device is certified for loads between 45kg and 200kg for standard use. For rescue techniques involving two devices, loads of up to 400kg may be managed by trained personnel.
If the mechanism becomes contaminated, clean it first. Lubrication should be done with a multi-use Teflon-based anti-corrosive lubricant (such as WD-40). Wipe off excess oil afterwards to prevent rope contamination.