FDV-R-RN2
The FDV-R-RN2 Globe type and FDV-Ra-RN2 Angled type Pressure Relief valves are automatic hydraulic control valves, designed to operate in fixed fire protection systems, particularly in fire pump units.
The FDV-R/Ra-RN2 hydraulic pilot-controlled valve is activated by line pressure. The pilot valve features a spring-loaded membrane that is sensitive to upstream pressure and pre-set to a desired maximum pressure. When the line pressure exceeds the set pressure, the relief valve opens, discharging any excess pressure and preventing potential damage.
Designed for both vertical and horizontal installation, the line pressure-operated FDV-R/Ra-RN2 Pressure Relief valves feature a direct elastomeric diaphragm seal, with no balancing spring or internal metallic wet components in the valve body. The hydrodynamic pattern design ensures high flow rates with minimal head loss.
