Tripods & Davits
Tripods are portable three-leg structures erected over a confined-space entry opening to provide an overhead anchor for the entry/retrieval line. The top carries a pulley for the worker's line and a mount for a winch. The category also covers davit arms on fixed, portable or vehicle bases, which provide an offset overhead anchor with a winch and retrieval device. Tripods stand without a fixed base, while davits suit recurring openings or sites where three legs cannot be set.
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About this category
Tripods are a pivotal element in confined-space entry work; together with davit arms they are among the means that convert a floor opening into a vertical rescue system with an anchor above the worker's head; davits mount on floor, wall, portable or vehicle bases. The design: three telescoping legs in aluminum (lighter, 15-25 kg) or steel (heavier, more durable), joined at the top by a head that carries a main pulley for the rescue line and a side mount for a winch. Legs open at a tight angle (typically 55°) that balances stability against opening width. Dimensions: working height 1.3 m to 3 m, leg spread fitting openings from 60 cm to 1.5 m. Applications: entry into tanks and vessels, industrial tank maintenance, well and shaft work, sewer entry, and pump maintenance. A substantive difference from davits: a davit mounts on a base (fixed, portable, or vehicle) and suits recurring openings, while the tripod is free-standing and moves between sites. An important technical note: a tripod is not a fall-arrest anchor on its own; it is paired with an SRL or winch to provide the arrest or lifting mechanism. Required strength follows the applicable standard or the engineered system design. Specifications follow ANSI Z359.4 and EN 795 Type B. Pre-use inspection verifies joint integrity and leg stability.
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Tripods are a pivotal element in confined-space entry work; together with davit arms they are among the means that convert a floor opening into a vertical rescue system with an anchor above the worker's head; davits mount on floor, wall, portable or vehicle bases. The design: three telescoping legs in aluminum (lighter, 15-25 kg) or steel (heavier, more durable), joined at the top by a head that carries a main pulley for the rescue line and a side mount for a winch. Legs open at a tight angle (typically 55°) that balances stability against opening width. Dimensions: working height 1.3 m to 3 m, leg spread fitting openings from 60 cm to 1.5 m. Applications: entry into tanks and vessels, industrial tank maintenance, well and shaft work, sewer entry, and pump maintenance. A substantive difference from davits: a davit mounts on a base (fixed, portable, or vehicle) and suits recurring openings, while the tripod is free-standing and moves between sites. An important technical note: a tripod is not a fall-arrest anchor on its own; it is paired with an SRL or winch to provide the arrest or lifting mechanism. Required strength follows the applicable standard or the engineered system design. Specifications follow ANSI Z359.4 and EN 795 Type B. Pre-use inspection verifies joint integrity and leg stability.
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