Preassembled compact kit combining the components required for balancing, control, flushing and commissioning of HVAC terminal units (fan coils, chilled beams, etc.) with the main distribution network.
The kit consists of a diverting ball valve to bypass the unit, a full-port ball valve with integrated filter, a pressure independent control valve (PICV) with its flow rate regulation key, a drain cock and four pressure ports to measure the differential pressure and the flow rate.
Temperature range: 5÷120 °C.
Max. working pressure: 25 bar (2,5 MPa).
Working differential pressure range:
25÷400 kPa (max. 4 bar) with R473 thermo-electric actuator;
25÷800 kPa (max. 8 bar) with K281 actuator or without actuator.
Actuator connection: M30 x 1,5 mm.
Working flow rate range:
R280KCY000: 32÷520 l/h (single regulation scale)
R280KCY001: 150÷380 l/h (LF); 180÷630 l/h (HF)
R280KCY002: 290÷1000 l/h (LF; 860÷1500 l/h (HF)
- K281X022: ON/OFF actuator, 24 V.
- K281X062: 0-10 V actuator for flow rate proportional linear control, 24 V.
- K281X063: 0-10 V actuator for flow rate proportional linear control, 24 V, with fail safe.
- R473X221: 230 V thermo-electric actuator, normally closed, 2-conductor wire, IP40, 2,5 W.
- R473X222: 24 V thermo-electric actuator, normally closed, 2-conductor wire, IP40, 2,5 W.
- R453FY002: M30 x 1,5 mm adapter ring for installation of R473/R473M thermo-electric actuators.
- R225EY001: electronic differential pressure gauge and flow rate calculator, including M10 x 1 mm needle probes.
- P206Y001: pair of pressure ports.
- P206Y011: pair of adjustable fittings with pressure ports.
- P15M: pair of male threaded tail pieces, including nut and sealing gasket.
- P15F: pair of female threaded tail pieces, including nut and sealing gasket.
- P15E: pair of eccentric male threaded tail pieces to reduce the supply-return center distance from 60 to 40 mm, including nut and sealing.
- R73PY010: key for PICV flow rate presetting