Page 47: of Offshore Engineer Magazine (Mar/Apr 2021)

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Bosch Rexroth Henriksen Hooks

Source: AdobeStock/Eugene maintenance, which ultimately makes pendent override interface. of spaces which can be used for the isola- it a low-cost ownership proposition for Bosch Rexroth has integrated a con- tion and segregation of crew, passengers helideck owners. tinuous and automated monitoring of the and onshore visitors, as well as the venti- system conditions, which signifcantly im- lation and interior surfaces of certain ac- proves the diagnosis of the safety function. commodation or working spaces.

Subsea Valve Actuator certified for Safety

Integrity Level 3 Infectious Disease Liferaft Hooks

The new concept for Subsea Valve Ac- Norway-based Henriksen Hooks

Mitigation Notation tuators (SVA) from Bosch Rexroth has A new notation and new guidance launched full production of its new Lif- been certifed by DNV GL for applica- launched has been launched by the eraft Release Hook following comple- tion in safety systems with up to Safety American Bureau of Shipping amid the tion of a prolonged testing program.

Integrity Level (SIL) 3 requirements. COVID-19 pandemic with the aim to The new crane hook has been espe-

The SVA is a self-contained actuator help marine and offshore operators re- cially developed for launching infated for opening and closing process valves in duce transmission of disease. liferafts. It is permanently attached to the deep sea at depths down to 3000 me- The ABS Guide for Mitigation of In- the fall wire of a crane and clips into a ters and deeper. The system consists of fectious Disease Transmission On Board steel lifting ring on the liferaft. It holds an electrically controlled drive with a hy- Marine and Offshore Assets details how the liferaft safely while it is being hoisted drostatic transmission, which saves up to the physical arrangement of a marine or out and lowered and releases automati- 75% of the energy required compared to offshore asset can act to mitigate trans- cally when the raft reaches the water and a conventional electro-mechanical axis. mission of infectious diseases, and, in an the load has come off the hook.

The patent-protected SVA is design industry frst, introduces a new notation “First shown in 2017, the hook has at- to open and close process valves for oil indicating compliance with the standards. tracted considerable interest from the ma- and gas production or in CO2 stor- Developed from a range of indepen- rine and offshore markets but Henriksen age systems in deep sea applications. A dent governmental and commercial has held it back until it completed a long redundant design, for example of the guidance, including the U.S. Centers and complex testing program,” the com- safety valves and feld-proven springs, for Disease Control and Prevention pany said recently announcing the launch.

ensures that the actuator can close the (CDC), the guide addresses physical ar- Versions of the hook are available for process valve safely even in case of power rangement measures onboard. holding loads of 1,500 kg and 3,500 failure and without external energy sup- The IDM-A (Infectious Disease Miti- kg and feature a number of safety op- ply. In addition, the actuator can also be gation-Arrangements) notation is offered tions that make them reliable and easy operated mechanically from the outside to vessels that meet the arrangement re- to operate in an emergency, the manu- using an underwater robot via an inde- quirements addressing the confguration facturer said.

march/April 2021 OFFSHORE ENGINEER 47