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Global Ocean Design Component

Burnwires

Model REL-238

Galvanic burnwire release rated for 250 lbs static load, used in seawater to release anchor weights or floats and to close samplers.

Description

Burnwires (REL-238) are used in seawater to release an anchor weight, close a Niskin bottle or baited trap, release a float or drop arm, or close a valve. The burnwire holds up to 250 lbs (static) until a 10-24V DC voltage is applied; using seawater as a conductor, it galvanically corrodes and releases in 6-15 minutes, depending largely on temperature. Each includes a 316 stainless steel shackle and a SubCon ILM1M pigtail with locking sleeve.

Key features

  • Rated for 250 lbs (static)
  • Side-load and torque tolerant, compact, no moving parts
  • Proven to work at any depth
  • Individually load-tested at the factory

Related items

  • Burnwire Mount (REL-158): controls side-loading and torsion and electrically isolates the burnwire from a frame
  • Practice Burnwires (REL-138-TEST) for lab training

Specifications

Load rating250 lbs (static)
Activation voltage10-24V DC
Release time6-15 minutes

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