^KAVM — Marine Actuators & Controls (MAC)

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Description

Italian manufacturer of hydraulic and electric valve remote control systems and actuators for marine applications.

Did you know

The Valve Remote Control System (VRCS) has been a critical safety system for marine vessels for over 80 years, with Rotork's Masso range being a leading solution in the marine and offshore industries. The system is designed to remotely operate valves in cargo and ballast tanks, and other critical systems on various types of ships, including oil and chemical tankers, LNG/LPG carriers, and FPSOs.
Within the broader VRCS offerings, Marine Actuators & Controls (MAC) refers to the hydraulic actuator components of a VRCS. Other VRCS components include control consoles, hydraulic power units, and solenoid valve cabinets. The VRCS can also incorporate electro-hydraulic, electric, and pneumatic actuators.
The hydraulic MAC actuators are chosen for their high torque-to-weight ratio and reliable actuation, particularly in demanding offshore applications and hazardous environments where purely electric actuators might be bulky or require extensive explosion protection. They offer robust and compact designs, suitable for various marine valves, and can be installed in diverse locations, including on deck or submerged.

Model	Mechanism	Action	Working Pressure (Bar)	Fail Position
Marine Actuators & Controls (MAC) (Hydraulic Actuator)	Rack & Pinion / Linear Piston	Double Acting / Single Acting	100-140	Fail Lock / Fail Close or Open
Electric Actuator (UED Series)	Rotary (Quarter-turn)	N/A	N/A	Fail Safe (via manual handwheel)
Electro-Hydraulic Actuator (MASSO IND E-ACTs)	Quarter-turn / Linear	Double / Spring-return	N/A	N/A

Sources: im-tek.com; sitecorecontenthub.cloud; maritimejournal.com; ec21.com; kockumation.com; bycontrols.com; api-marine.dk; affco-flowcontrol.com; mowemo.com

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Code map

^K  A  V  M
 │  │  │  └── Model: Marine Actuators & Controls (MAC)
 │  │  └───── Make: VRCS Valve Remote Control System
 │  └──────── Equipment: Tankers (Oil & Gas)
 └─────────── System: Cargo