VG7251GT+7153G
Details
Details
VG7251GT+7153G 1/2 in. Union 2-Way Globe Valve, 4.6 Cv, with VA-7153-1001 Floating Actuator with Feedback, 24 VAC
Holds its last position on power loss.
Takes a three-wire 24 VAC floating signal.
Handles hot or chilled water up to 50% glycol to 284 deg F, or steam to 38 psi.
Key Features
- Cv: 4.6
- Close-off: 216 psi
- Trim: brass, equal percentage
- Force: 90 lb
- Stroke time: 70 s
- Feedback: 0 to 2000 ohm
Product Specifications
| Manufacturer | Johnson Controls |
|---|---|
| Model | VG7251GT7153G (VG7251GT+7153G) |
| Valve | VG7251GT cast bronze globe valve, 2-way normally open (push-down-to-close) |
| Size and connection | 1/2 in. (DN15) union globe |
| Cv | 4.6 (Kv 4.0) |
| 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 | 216 psig (VA-715x) |
| Fluid temperature | 35 to 284 deg F (2 to 140 deg C) water; 38 psig saturated steam |
| Maximum allowable pressure | Water 400 psig to 150 deg F, 365 psig at 248 deg F; steam 38 psig at 284 deg F |
| Body rating | ANSI B16.15 Class 250 |
| Maximum recommended pressure drop | Water 35 psig; steam 15 psig |
| Rangeability | Greater than 100:1 |
| Leakage | 0.01% of maximum flow per ANSI/FCI 70-2, Class 4 |
| Valve ambient | 35 to 150 deg F |
| Actuator | VA-7153-1001 synchronous motor with magnetic clutch, non-spring return, three-wire incremental with position feedback |
| Power | 24 VAC (20 to 30 VAC), 50/60 Hz, 2.7 VA nominal |
| Control signal | 24 VAC, 50/60 Hz three-wire incremental (floating) |
| Feedback signal | 0 to 2000 ohm potentiometer over 25/32 in. (20 mm) stroke, 1/4 W |
| Stroke time | 70 seconds at 60 Hz, 85 seconds at 50 Hz (5/16 in. stroke) |
| Actuator force | 90 lb (400 N) minimum |
| Electrical connections | Screw terminals, 24 to 16 AWG |
| Actuator enclosure | NEMA 1, IP40 |
| Actuator ambient operating | 0 to 140 deg F (-18 to 60 deg C), 10 to 90% RH noncondensing, 86 deg F maximum dew point |
| Actuator dimensions | 3.84 in. diameter x 6.06 in. high (98 x 154 mm) |
| Actuator listings | UL Listed, CCN XAPX, File E27734 (UL 60730); CSA C22.2 No. 24-93; CE; RCM |