FloSet 4-Port ABV

Automatic Balancing Valve (ABV) assembly for fan coil unit installations, providing constant flow and dead leg protection in a variable flow system.

FloSet 4-Port comprises:

• The FlowCon flushing bypass on 40 mm centres, five modes of operation including full isolation of the coil, a high Kvs bypass for full velocity system flush;
• FlowCon flow venturi metering station ±5% accuracy, with integrated test point and fitted with combined PT plug-and-drain in the flow branch and optional strainer (static pressure 20 Bar maximum);
• Johnson Controls four-port valve with 24 V electric modulating or raise lower actuator control;
• FlowCon E-Just or composite automatic balancing valve with an externally or internally adjustable, removable insert, with an integrated test point and combined PT plug-and-drain valve in the return branch;
• Conex compression FCU connections for direct mounting onto the fan coil unit over the extended drip tray;
• female threaded system-side connections.
• Optional: Blank cap for flushing.

FlowCon bypass handle positions supporting five functions:

1. Bypass.
2. Total isolation.
3. Full flow.
4. Back flush.
5. Forward flush.

Features and benefits:

• Heating and cooling duty -10˚C to +120˚C.
• Static pressure: 25 Bar.
• Differential pressure up to 400 kPa depending upon ABV insert selection.
• Pressure-independent automatic balancing.
• Accurate flow measurement at the terminal unit.
• Drain and test points in the flow and return.
• Flow rates 0.008–0.408 L/s, 41 settings per externally adjustable insert type (six types in total) and 65 across ten internally adjustable inserts for superior accuracy
• 24 V modulating or raise/ lower control.
• Line sizes DN15 or DN20.
• Fully-tested, labelled, cross-referenced to schedule, with QR code link to technical data.
• Vertical and horizontal configuration.