The NABIC 500 Series encompasses high-capacity, high-lift safety relief valves designed for overpressure protection in various systems, including unvented hot water heating, steam boilers, compressed air systems, and inert gas applications.These valves are renowned for their robust construction, versatility, and compliance with stringent industry standards.
The main difference between the models is as follows.
- 500 – Screwed Connections. The outlet is one size larger.
- 500L – Same as the 500 with a gas tight cap.
- 500F – Same as the 500 with a flanged Inlet.
- 500T - Same as the 500 but also has an inlet temperature probe set to open the valve at about 90 to 95 degC.