Course Fee Adjustments

Energy Safety Canada is adjusting its course registration fees for select 2025 courses. Read more.

Resource Search Resource Search

Gate Valve Bonnet Failures from Thermal Expansion of Fluids at High-Temperature


In a SAGD application, immediately after start-up, a gate valve bonnet failure caused a release to atmosphere. In thermal applications throughout the oil and gas industry, there have been incidents of valve failures during start-up. Resulting damage can include stretching studs and loss of pressure integrity between the body and bonnet.