The Regin FLS304X is a robust electromechanical flow switch designed for reliable liquid flow monitoring in industrial HVAC systems. Its paddle-operated mechanism makes it well-suited for heating, air conditioning, refrigeration systems, and heat pumps. When the flow rate reaches the adjustable set point, the paddle deflects, actuating a built-in SPDT microswitch to provide a switching signal for pumps, alarms, or control circuits.

Key Features

• Wide Flow Range: Adjustable setpoint from 0.6 to 165.7 m³/h (approximately 10 to 2,762 L/min), with a maximum flow rating of 240 m³/h.
• High Electrical Rating: SPDT microswitch rated at 15(8) A, 24-250 V AC, capable of directly controlling pumps or other loads.
• Rugged Construction: Standard brass body with R1" threaded connection. Optional AISI 316L stainless steel version available for corrosive media. Stainless steel paddle ensures durability.
• IP65 Protection: Dust-tight and protected against low-pressure water jets, suitable for demanding industrial environments.
• Wide Media Temperature Range: Operates reliably with media temperatures from -40°C to +120°C.
• Versatile Installation: Can be installed horizontally or vertically (recalibration required for vertical installation). Suitable for pipe sizes from ½” to 8”.
• Safety Approvals: Carries CE mark. FLS304XT and FLS305XT models are TÜV approved for enhanced safety.

Applications

The FLS304X is ideal for flow control in heating and air conditioning systems, refrigeration circuits, heat pumps, sprinkler systems, and general industrial water or non-aggressive liquid monitoring applications.