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Size
15 (1/2) mm – 50 (2) mm
Pressure Rating
DN15-50 / 1/2”-2”
Type
Energy-Saving Pressure Independent Temperature Control System
FlowCon PICV valve
Static pressure: 2500 kPa / 360 psi
Ambient temperature: +1°C to +50°C / +34°F to +122°F
Media temperature: -20°C to +120°C / -4°F to +248°F
Material:
Housing and cover/headnut:
DN15-32 (1/2”-1 1/4”): Forged brass ASTM CuZn40Pb2 or DZR CuZn36Pb2As
DN40-50 (1 1/2”-2”): Forged brass ASTM CuZn40Pb2 or Ductile iron ASTM A395 Grade 60-40-18
Composite components: Glass-reinforced PSU/POM/PPS
Metal components (internal): Stainless steel
O-rings: EPDM
Cone: PPS
Seats: EPDM
Diaphragm:
DN15-25 (1/2”-1”) with 20 mm (3/4”) insert: EPDM
DN25-32 (1”-1 1/4”) with 40 mm (1 1/2”) insert: Hydrogenated acrylonitrile-butadiene-rubber
DN40-50 (1 1/2”-2”) (one-unit): Hydrogenated acrylonitrile-butadiene-rubber
Stroke:
DN15-25 (1/2”-1”) with 20 mm (3/4”) insert: 3.4 mm / 0.13 in
DN25-32 (1”-1 1/4”) with 40 mm (1 1/2”) insert: 5.2 mm / 0.2 in
DN40-50 (1 1/2”-2”) (one-unit): 6.2 mm / 0.24 in
Maximum close off pressure: 800 kPa / 116 psi
Maximum operational $\Delta$P:
DN15-32 (1/2”-1 1/4”): 800 kPaD / 116 psid
DN40-50 (1 1/2”-2”): 600 kPaD / 87 psid
Control characteristic: Linear flow
Control range: 1:800 / IEC 60534
Rangeability: 100:1
Turn down ratio: 100:1
Shut-off leakage: ANSI / FCI 70-2 2006, Class IV / IEC 60534-4, Class IV
Flow rate range: 0.0103-3.79 l/sec / 0.163-60.0 GPM
End connection: Fixed female ISO or NPT¹
Body taps: 1/4” ISO
Note 1: NPT only available ex. US-factory
FlowCon Intelligent Interface
Supply voltage: 24V AC/DC
Power consumption: 4W
Cable (3 groups):
Group 1:
Fixed, 1 wire with quick-connector, 3 meter / 9 ft (T1)
Fixed, 1 wire with quick-connector, 1 meter / 3 ft (T2)
Fixed, 3 wires, 0.6 meter / 2 ft (analogue actuator communication)
Group 2:
Fixed, 2 wires, 0.6 meter / 2 ft (power and ground)
Fixed, 3 wires, 0.6 meter / 2 ft (BACnet BMS communication)
Group 3:
Fixed, 1 wire with quick-connector, 1 meter / 3 ft (P1)
Fixed, 1 wire with quick-connector, 1 meter / 3 ft (P2)
Fixed, 3 wires, 0.6 meter / 2 ft (BACnet actuator communication – not in use on FlowCon FIT-G)
Communication standard: RS485
Control signal: 2-10V DC
Output signal: 2-10V DC
Humidity rating: 5..95% rH, no condensation
Protection: IP54 including upside-down mounting
Housing material: UL94 V0-rated plastic
CE conformity: Yes
Protocol: BACnet MS/TP
Interface: EIA-485 / RS-485
Device profile: BACnet Application Specific Controller (B-ASC) type server
Baud rates supported: 9600, 19200, 38400, 57600, 76800 and 115200
Services (BIBBS) supported: DS-RP-B, DS-WP-B, DM-DDB-B, DM-DOB-B, DM-DCC-B, DS-RPM-B and DM-RD-B
Participants: Up to 32 recommended, max. 127 participants
Load: 1/8 unit load
Temperature sensors (T1 and T2)
Supply voltage: N/A
Cable: No cable, but with quick-connector
Signal output: Resistive
Media temperature: -20°C to +120°C / -4°F to +248°F
Working pressure: 40 bar / 580 psi
Housing material: 304 stainless steel
Protection: IP65
Probe length: 12.7 mm / 0.5 in (use of sensor pocket is recommended)
Probe diameter: 6 mm / 0.236 in
CE conformity: Yes
Connection: 1/4” ISO
Performance data:
Sensor type: PT1000
Accuracy: 0.5% FS (Full Scale)
Linearity: ±0.5% FS (Full Scale)
Long time stability: 0.1% FS (Full Scale)
Response time: at 50°C (122°F): 2.3 sec / at 90°C (194°F): 5.4 sec
Pressure sensors (P1 and P2)
Supply voltage: 12V DC
Cable: No cable, but with quick-connector
Output: 4-20mA
Media temperature: -10°C to +85°C / 14°F to +185°F
Pressure range: 0-25 bar / 0-360 psi³
Housing material: 304 stainless steel
Protection: IP65
CE conformity: Yes
Connection: 1/4” ISO
Performance data:
Accuracy: ±1.5% FS (Full Scale) (tolerances can be software compensated in the FlowCon Intelligent Interface)
Stability: 0.5% FS (Full Scale) ±0.05%
Thermal effect on zero: ±0.1% FS (Full Scale)
Thermal effect on span: ±0.05% FS (Full Scale)
Electronic proof: Short circuit protection
Response time: <20 msec (20 sec mean value calculated in the FlowCon Intelligent Interface)
Note 3: Calibrated at factory at 24V DC
Pressure sensors (P1 and P2)
Supply voltage: 12V DC
Cable: No cable, but with quick-connector
Output: 4-20mA
Media temperature: -10°C to +85°C / 14°F to +185°F
Pressure range: 0-25 bar / 0-360 psi³
Housing material: 304 stainless steel
Protection: IP65
CE conformity: Yes
Connection: 1/4” ISO
Performance data:
Accuracy: ±1.5% FS (Full Scale) (tolerances can be software compensated in the FlowCon Intelligent Interface)
Stability: 0.5% FS (Full Scale) ±0.05%
Thermal effect on zero: ±0.1% FS (Full Scale)
Thermal effect on span: ±0.05% FS (Full Scale)
Electronic proof: Short circuit protection
Response time: <20 msec (20 sec mean value calculated in the FlowCon Intelligent Interface)
Note 3: Calibrated at factory at 24V DC
The FlowCon Energy FIT System measures energy usage while monitoring performance to adjust the PICV to optimize chiller performance. The PICV maintains the correct flow despite pressure changes and guarantees that flow and actuator position only change when demand requirements change or water ΔT is outside of specification.
The FlowCon FIT is fully customizable and allows selection of components that work best to optimize the applica tion’s unique energy goals. It consists of a FIT Intelligent Interface and a FN/FH actuator. The FIT Interface has control logics based on sensor inputs. The sensors used for the FIT System are two PT1000 temperature sensors and optionally two 25 bar pressure sensors measuring relative to atmospheric pressure. The temperature sensors provide the FlowCon FIT with measurements of up- and downstream temperature, and the pressure sensors mea sure the ΔP across the PICV allowing the BMS to reduce system pressure to save pump energy when pressure drop is higher than the PICV’s requirements.
When the FIT System is set up with pressure and temperature sensors, inlet- and outlet temperatures, static and differential pressures, flow rate and BTU will be readable in the Building Management System through the BAC net objects. Also, the control objects can be controlled through the BACnet interface. For full detailed information, please see FlowCon FIT BACnet PICS.
There are 3 main control modes for the FIT module: direct ΔT Control, direct Comfort Control, and Smart Control. ΔT Control adjusts the flow through the valve with the aim of maintaining a set design ΔT in the hydraulic system. Comfort Control allows you to adjust the control signal of the actuator directly and thereby control water flow rate like a standard control valve. And Smart Control uses a dual layer control characteristic. The main control is changing the flow to optimize the room temperature relative to the room temperature target. When the room temperature is within the accepted range, the ΔT control is activated to optimize the water ΔT.
Finally, the FlowCon Energy FIT System has local Bluetooth® access in immediate vicinity of the FIT Interface that can be used through the FlowCon App. The FlowCon Intelligent Interface calculates the BTU and displays the data via Bluetooth® on an Android or iPhone mobile device. In the FlowCon App you may connect to the FIT System by tapping “Connection” and “Search” for FlowCon systems around. Follow the ste