Crankcase explosion relief valves

Join the next generation of crankcase explosion relief valves

Safety in the design and operation of Everllence combustion engines has always been a top priority. Between 1998 and 2020, our crankcase explosion relief valves underwent continuous development to further enhance safety and reliability. The latest generation of type-approved valves provides improved protection for the crew and significantly reduces the risk of consequential damage in the event of a crankcase explosion. Outdated relief valves increase the risk of serious damage and injury. To ensure optimal safety for your vessel and crew, we recommend replacing older valves – especially on engines built before 2007 – with the latest Everllence generation, designed for maximum durability and superior flame-arresting performance.

Checklist document icon with a check mark.

Proactive safety starts with proper maintenance

Checklist for prevention

Follow these key steps to maintain optimal engine safety and reduce the risk of crankcase explosions:

Use class- and Everllence-approved valves
Perform careful maintenance according to manufacturer and Everllence instruction manuals
Check the tightness of the crankcase
Ensure proper maintenance and testing of: Oil mist detector, bearing wear monitoring system (BWM), shaft line earthing device
Keep the system oil free of water

See service letters for more information

Download our service letters

Safety you can rely on

Protect your crew, engine and vessel

Talk to us today — our global network of experienced Everllence engineers is available 365 days a year to support you in achieving optimal protection and operational safety.

Contact our experts

Support agent wearing a headset speaking at a computer.

Crankcase explosion relief valves – Minimize a high safety risk

Join the next generation of crankcase explosion relief valves

Checklist for prevention

Download our service letters

SL2022-730

SL2017-652

SL2015-607

SL2009-512

Protect your crew, engine and vessel