F665HD+AFX24-MFT-S-X1 2-1/2 in. 2-Way Butterfly Valve with Spring Return Actuator, 24 VAC/DC, MFT
Rated ANSI Class 125/150 for chilled or hot water, up to 60% glycol, with multi-function (MFT) control. MFT ships set for 2-10 VDC; order a programming code, or reprogram with Belimo Assistant 2 or ZTH US, for other signals. Fail position (open or closed) is set at the factory; state it when ordering.
Key Features
- Cv: 196
- Close-off: 200 psi
- Control: MFT (programmable)
- Aux switch: 2x SPDT
Product Specifications
| Manufacturer | Belimo |
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| Model | F665HDAFX24MFTSX1 (F665HD+AFX24-MFT-S-X1) |
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| Valve | F665HD |
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| Valve size | 2.5" (65) |
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| Fluid | chilled or hot water, up to 60% glycol |
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| Fluid Temp Range (water) | -22 to 250 deg F (-30 to 120 deg C) |
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| Body Pressure Rating | ANSI Class Consistent with 125, 232 psi CWP |
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| Close-off pressure | 200 psi |
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| Flow characteristic | modified equal percentage |
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| Leakage rate | 0% leakage, leakage rateA |
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| Pipe connection | Flange for use with ASME/ANSI class 125/150 |
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| Servicing | maintenance-free |
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| Flow Pattern | 2-way |
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| Controllable flow range | 90 deg rotation |
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| Cv | 196 |
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| Maximum Velocity | 12 FPS |
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| Lug threads | 5/8-11 UNC |
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| Valve body | Ductile cast iron ASTM A536 |
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| Body finish | epoxy powder coating (blue RAL 5002) |
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| Stem | 416 stainless steel |
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| Stem seal | EPDM (lubricated) |
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| Seat | EPDM |
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| Bearing | RPTFE |
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| Disc | 304 stainless steel |
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| Suitable actuators, non-spring return | ARB(X) GRB(X) |
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| Suitable actuators, spring return | AFRB(X) |
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Actuator: AFX24-MFT-S-X1
| Nominal voltage | AC/DC 24 V |
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| Nominal voltage frequency | 50/60 Hz |
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| Nominal voltage range | AC 19.2 to 28.8 V / DC 21.6 to 28.8 V |
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| Power consumption in operation | 7.5 W |
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| Power consumption in rest position | 3W |
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| Transformer sizing | 10 VA |
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| Auxiliary switch | 2x SPDT, 1 mA...3 A (0.5 A inductive), DC 5 V...AC 250 V, 1x 10% / 1x 11 to 90% |
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| Switching capacity auxiliary switch | 1 mA...3 A (0.5 A inductive), DC 5 V...AC 250 V |
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| Overload Protection | electronic throughout 0 to 95 deg rotation |
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| Operating range Y | 2 to 10 V |
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| Operating range Y note | 4 to 20 mA w/ ZG-R01 (500 Ω, 1/4 W resistor) |
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| Operating range Y variable | Start point 0.5 to 30 V End point 2.5 to 32 V |
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| Operating modes optional | variable (VDC, PWM, on/off, floating point) |
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| Position feedback U | 2 to 10 V |
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| Position feedback U note | Max. 0.5 mA |
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| Position feedback U variable | VDC variable |
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| Direction of motion motor | selectable with switch 0/1 |
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| Direction of motion fail-safe | reversible with cw/ccw mounting |
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| Manual override | 5 mm hex crank (3/16" Allen), supplied |
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| Angle of rotation | 95 deg |
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| Angle of rotation note | adjustable with mechanical end stop, 35 to 95 deg |
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| Running time (motor) | 150 s / 90 deg |
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| Running time motor variable | 70 to 220 s |
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| Running time fail-safe | <20 s |
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| Sound power level motor | 40 dB(A) |
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| Sound power level, fail-safe | 62 dB(A) |
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| Override control | MIN (minimum position) = 0% MID (intermediate position) = 50% MAX (maximum position) = 100% |
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| Position indication | Mechanical |
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| Power source UL | Class 2 Supply |
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| Degree of protection NEMA/UL | NEMA 2 |
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| Housing | UL Enclosure Type 2 |
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| Agency Listing | cULus acc. to UL60730-1A/-2-14, CAN/CSA E60730-1:02, CE acc. to 2014/30/EU |
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| Quality Standard | ISO 9001 |
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| UL 2043 Compliant | Suitable for use in air plenums per Section 300.22(C) of the NEC and Section 602 of the IMC |
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| Ambient humidity | Max. 95% RH, non-condensing |
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| Ambient temperature | -22 to 122 deg F (-30 to 50 deg C) |
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| Storage temperature | -40 to 176 deg F (-40 to 80 deg C) |
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| Servicing | maintenance-free |
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| Weight | 5.0 lb (2.3 kg) |
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| Housing material | Galvanized steel and plastic housing |
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