VG7281CT+423GGC
Details
Details
VG7281CT+423GGC 1/2 in. Union Sweat 2-Way Normally Open Globe Valve, 0.73 Cv, with VA-4233-GGC-2 Spring Return Proportional Actuator, Two Auxiliary Switches, 24 VAC/DC
Springs back to open on power loss.
Takes 0-10V, 2-10V, 6-9V, 0-20mA or 4-20mA control, chosen by switch settings.
Handles hot or chilled water up to 50% glycol to 250 deg F, or steam to 15 psi.
Key Features
- Cv: 0.73
- Close-off: 345 psi
- Trim: brass, equal percentage
- Force: 61 lb
- Auxiliary switches: two SPDT
Product Specifications
| Manufacturer | Johnson Controls |
|---|---|
| Model | VG7281CT423GGC (VG7281CT+423GGC) |
| Valve | VG7281CT cast bronze globe valve, 2-way normally open (push-down-to-close) |
| Size and connection | 1/2 in. (DN15) union sweat, standard tubing |
| Cv | 0.73 (Kv 0.63) |
| Flow characteristic | Equal percentage |
| Trim | Brass plug, brass seat against molded elastomeric disk; stainless steel stem; EPR packing |
| Valve stroke | 5/16 in. (8 mm) |
| Close-off pressure | 345 psig (VA-4233) |
| Fluid temperature | 35 to 250 deg F (2 to 121 deg C) water; 15 psig saturated steam |
| Maximum allowable pressure | Water 400 psig to 150 deg F, 365 psig at 248 deg F; steam 15 psig at 250 deg F |
| Body rating | ANSI B16.15 Class 250 |
| Maximum recommended pressure drop | Water 35 psig; steam 15 psig |
| Rangeability | Greater than 25:1 |
| Leakage | 0.01% of maximum flow per ANSI/FCI 70-2, Class 4 |
| Valve ambient | 35 to 150 deg F |
| Actuator | VA-4233-GGC-2 stepper motor, spring return stem up, direct mount |
| Power | 20 to 30 VAC at 50/60 Hz or 24 VDC +10%; Class 2, 12 VA |
| Control signal | 0 (2) to 10 VDC, 6 to 9 VDC, or 0 (4) to 20 mA, switch selectable; factory set 0 to 10 VDC, stem down on signal increase |
| Input impedance | Voltage 200,000 ohms; current 500 ohms |
| Feedback signal | 0 to 10, 2 to 10, or 6 to 9 VDC at 2 mA (matches input selection) |
| Auxiliary switches | Two SPDT, double insulated: 24 VAC, 50 VA pilot duty; 120 VAC, 5.8 A resistive, 1/4 hp, 275 VA pilot duty; 240 VAC, 2.9 A resistive, 1/4 hp, 275 VA pilot duty |
| Stroke time | 76 seconds for 29/32 in. stroke (proportionally less for shorter strokes) |
| Spring return time | 3 to 15 seconds at room temperature and no load (29/32 in. stroke) |
| Spring return direction | Stem up |
| Actuator force | 61 lb (271 N) minimum |
| Manual override | Hand crank |
| Electrical connections | 48 in. (122 cm) cable, 20 AWG leads; auxiliary switches 48 in. (122 cm) cable, 18 AWG leads |
| Actuator enclosure | NEMA 2, IP42 |
| Actuator noise level | 35 dB(A) maximum at 39 in. (100 cm) |
| Actuator ambient operating | -4 to 122 deg F (-20 to 50 deg C) |
| Actuator listings | UL 873 Listed, File E27734, CCN XAPX; CSA C22.2 No. 139 Certified; CE |