G780+AVKX24-MFT 3 in. 3-Way Globe Valve with Electronic Fail-Safe Actuator, 24 VAC/DC, MFT
ANSI Class 125 mixing globe valve 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: 85
- Control: MFT (programmable)
- Torque: 450 lb
Product Specifications
| Manufacturer | Belimo |
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| Model | G780AVKX24MFT (G780+AVKX24-MFT) |
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| Valve | G780 |
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| Cv | 85 |
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| Body Pressure Rating | ANSI Class 125, up to 175 psi below 150 deg F |
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| Valve size | 3" (80) |
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| Fluid | chilled or hot water, up to 60% glycol |
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| Fluid Temp Range (water) | 32 to 300 deg F (0 to 149 deg C) |
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| Flow characteristic | linear |
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| Leakage rate | ANSI Class III |
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| Pipe connection | Flange for use with ASME/ANSI class 125 |
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| Servicing | repack/rebuild kits available |
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| Rangeability Sv | 50:1 |
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| Flow Pattern | 3-way Mixing |
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| Controllable flow range | stem up - open B – AB |
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| Valve body | Cast iron - ASTM A126 Class B |
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| Closing element | bronze |
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| Stem | stainless steel |
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| Stem seal | NLP EPDM (no lip packing) |
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| Seat | Stainless steel AISI 316 |
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| Suitable actuators, non-spring return | EVB(X) RVB(X) |
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| Suitable actuators, spring return | AF 2*AFB(X) |
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| Suitable actuators, electronic fail-safe | AVKB(X) 2*GKB(X) |
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Actuator: AVKX24-MFT
| 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 | 5W |
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| Power consumption in rest position | 2W |
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| Transformer sizing | 9.5 VA |
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| Overload Protection | electronic throughout full stroke |
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| Electrical Protection | actuators are double insulated |
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| Actuating force motor | 2000 N (450 lbf) |
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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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| Input impedance | 100 kΩ for 2 to 10 V (0.1 mA), 500 Ω for 4 to 20 mA, 1500 Ω for PWM, On/Off and Floating point |
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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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| Bridging time (PF) | 2s |
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| Pre-charging time | 5 to 20 s |
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| Direction of motion motor | selectable with switch |
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| Direction of motion fail-safe | reversible with switch |
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| Manual override | 5 mm hex crank (3/16" Allen), supplied |
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| Stroke | 1.25" (32 mm) |
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| Running time (motor) | 90 s / |
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| Running time motor variable | 90 to 150 s |
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| Running time fail-safe | <35 s |
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| Sound power level motor | 60 dB(A) |
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| Sound power level, fail-safe | 60 dB(A) |
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| Position indication | Mechanical, with pointer |
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| Power source UL | Class 2 Supply |
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| Degree of protection IEC/EN | IP54 |
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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 and 2014/35/EU |
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| Quality Standard | ISO 9001 |
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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 | 12 lb (5.3 kg) |
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| Housing material | Die cast aluminium and plastic casing |
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