New valves for Milford Haven LNG terminal

Bury St Edmunds, UK - Air shut-off valves and exhaust spark arrestors from Chalwyn have been fitted on the maintenance vehicles working at the new Milford Haven South Hook LNG terminal. This means that the supplier, part of AMOT, is specified for improving safety at ‘both ends’ of the transportation process.

Over 20 D Series valves and spark arrestors were recently retrofitted by Greens Motors Ltd to the various models of commercial vehicles (typically 2.5 litre) as part of the project being run by South Hook LNG Terminal Co.

Flammable gas or vapour drawn into a diesel engine intake acts as an ungoverned fuel supply, causing uncontrolled over-speed and mechanical failure or flashback ignition of the surrounding flammable atmosphere. An air intake shut down valve is the only certain way to stop the engine.

According to Chalwyn, its D Series valves provide fully automatic engine over-speed protection with the simplicity of no requirement for mechanical or electrical connections. Different size ranges have allowed meeting application requirements for virtually all popular intake pipe sizes and engine ratings. 

The company's stainless steel diesel engine spark arrestors are approved to EU ATEX standards and are of the quenching type to provide essential safety wherever a stray spark may cause ignition of combustible material. Glowing particles emitted from a diesel engine exhaust are repeatedly impacted against internal spark arrestor surfaces to be cooled and broken down before eventual discharge to atmosphere.