Belimo PI Flow Limiter Valve Rp1 Kvs3.6 24VAC/DC Fail-Safe 75s 2-point 4Nm IP54 R225FL-J/LRF24

This is a Belimo 2-way electrically actuated pressure independent flow limiter valve (PIFLV) with a brass housing and EPDM sealing. The bore diameter of the valve is DN 25 and the port size is Rp 1 inch with female threads. The built-in flow limiter maintains a constant flow volume and steady control even with pressure variations at a 90° angle. The maximum pressure differential is 2.8 bar (40.6 psi). The valve can operate between 2 and 60 °C (36 to 140 °F). The Kv value of the valve is 3.6 m3/h, equivalent to a Cv-value of 4.17 gpm. The actuator requires a supply voltage of 24 V AC/DC. The actuator features two-point (open-close) control. The actuator is equipped with a fail-safe (NC) feature that ensures safe operation in the event of a power failure. Installing Belimo actuators on this valve is made easy due to the central bolt design. The actuator has an IP54 protection rating. The direction of flow, indicated by an arrow on the housing, is of utmost importance to prevent damage to the ball valve.

The actuator, equipped with overload protection, the actuator doesn't need limit switches and will stop automatically when the end stop is reached. The valve can be manually operated and secured in any position using a hand crank. Unlocking can be done manually or automatically by applying the operating voltage. The actuator can be directly mounted on the ball valve using a single screw. The mounting orientation relative to the ball valve can be chosen in 90° increments. The actuator simultaneously moves the valve to the operating position and tensions the return spring. If the power source is cut off, the valve reverts to the fail-safe position driven by the spring force. The rotation angle can be adjusted with mechanical end stops.

Pros:

• Very easy installation of Belimo actuators with the central bolt
• No need for time-consuming manual hydronic system adjustment anymore
• Water quantity remains constant despite pressure changes
• The valve doesn't "stick" due to reliable ball valve technology
• Resistant to contamination

Series:

The Belimo PIFL series features a 2-way PI flow limiter valve with an internal thread, specifically designed for closed cold water systems. This valve series is ideal for water-side on/off control of fan coil and cooling ceilings. With its robust and straightforward functionality, it ensures reliable and efficient operation. The series aims to provide precision control and longevity, making it a suitable choice for various applications. These valves display Belimo's commitment to quality and performance, offering functionality that can adapt to diverse cooling system needs.