The NABIC Fig 542 Safety Relief Valve is a versatile, UK-manufactured valve designed primarily for the protection of hot water boilers.Its robust construction and compliance with industry standards make it suitable for a wide range of applications, including steam, compressed air, and inert gas systems.
The main difference between the models is as follows.
- 542 - Screwed Connections.
- 542L - Same as the 500 with a gas tight cap.
- 542F - Same as the 500 with a flanged inlet connection.