For efficient operation of boilers, frequent ‘bottom blow-down’ procedures are required to help remove sludge deposits from within the vessel. Sludge may form from dirt in the water supply or from the water treatment chemicals. Where blow-down occurs on manual valves, a safety interlock system must be implemented to ensure... read more →

Ethylene production is an inherently complex and dangerous process, particularly when considering the operation of valves and/or line blinds around a cracking furnace. The incorrect operation of the controls to gas, feed stock and decoke air to the furnace can have catastrophic results. Under normal conditions, the operation of controls... read more →

An open path to relief must be maintained on Safety Relief Systems at all times during work exercises. A spare relief capacity, enables continuous production while maintenance procedures take place, and eliminates the need to isolate and shut down the whole process. Typically, twin or multiple safety relief valve systems... read more →

Accidents in the process industry are mostly related to procedures that do not occur frequently and at the same time can have catastrophic results when performed incorrectly. 75% of the accidents in the process industry happen during startups, shutdowns and maintenance. In 50% of these accidents, root cause is incorrect operation... read more →

SBM reaches new levels of pigging safety using valve interlocks managed by a sequence control panel. This electronic panel manages start key release, based on compressor input signals and key detection. FPSO From the construction of FPSO ‘Cidade de Ilhabella’ three years ago, SBM implements Netherlocks interlocks and an electronic... read more →

In order to operate a valve equipped with a Netherlocks interlock from a locked-open to a locked-closed position, you first need the 'open' key for that particular valve interlock. The 'open' key code is hard dye stamped into the key, as well as the right-hand front side of the lock... read more →

If sequential control is unnecessary, a valve locking device can be used to temporarily lock off the valve. The valve locking device enables individual personnel to isolate equipment while they carry out their work, safe in the knowledge that the equipment cannot be used. Sofis offers a full complement of security... read more →