Honeywell VGF21 Product Data

VGF Flanged Globe Valves
VGF21
VGF31
APPLICATION
VGF Flanged Globe Valves are used for 2-position or
modulating control of steam, hot water, or chilled water in
closed loop HVAC systems. They can be operated by a
large variety of electric and pneumatic actuators. Three-
way valves are available in mixing or diverting flow
patterns.
FEATURES
• ANSI Class 125 and Class 250 flanged cast iron
bodies.
• Face-to-face flange dimensions per ANSI/ISA S75.03
standard.
• Sizes from 2-1/2 to 6 inches (DN65 to DN150).
• Metal-to-metal seating for long life span.
• Differential pressure of 175 psi, ANSI Class IV
leakage on pressure-balanced models.
• Steam inlet pressure up to 100 psig (689 kPa).
• Self-adjusting packing.
• Equal percentage and linear flow characteristics to
ensure precise control in a variety of applications.
Related Literature
— 62-0213 VGF Installation Instructions
— 63-1301 VGF Specification Data
— 63-9271 Field Devices Catalog (for compatible
actuators)

SPECIFICATIONS

VGF22
Models: See Tables 2 and 3.
Dimensions: See Fig. 3 and 4.
Action:
Mixing valves: Stem up to close port A-AB.
All others: Stem down to close port A-AB.
Controlled Media:
Water up to 50% glycol solution.
Saturated steam (2-way models) up to 100 psig.
Not suitable for open loop systems such as condenser
VGF32
Valve Body Temperature-Pressure Ratings:
Water: ANSI Class 125 and 250. See Table 1.
Steam: 337°F (170°C); 100 psig (689 kPa).
Flow Capacity: See Table 8.
Stroke and Mounting:
2-1/2 and 3 inch (DN65 and DN80): 3/4 in. (20mm)
4 to 6 inch (DN100 to DN150): 1-1/2 in. (38mm) stroke,
Maximum Temperature Differential
(alternating hot/cold water): 108°F (60°C).
Flow Characteristic:
VGF2__E_: Equal percentage.
VGF2__L_: Linear.
VGF3_EM_ Mixing Valve: Equal percentage port A-AB, Lin-
VGF3_LD_ Diverting Valve: Linear.
Rangeability: 50:1.
Close-Off Pressure (maximum):
VGF21_P pressure-balanced: 175 psi (1207 kPa).
All others: Proportional to actuator force. See Tables 4, 5.
Leakage Rate (maximum):
VGF21_P pressure-balanced: 0.01% of Cv (ANSI Class IV).
VGF2__S: 0.05% of Cv (ANSI Class III).
Three-way:
water or potable water.
stroke, 1-3/8 in. bonnet, 1/4-28 UNF stem thread and
button.
1-7/8 in. bonnet, 7/16-20 UNF stem thread, and but-
ton.
ear port B-AB.
and 6.
VGF31EM and VGF32EM <.05% of CV A to AB (ANSI
Class III), <.1% of CV B-AB
VGF31LD and VGF32LD <.05% of CV AB to A (ANSI
Class III), <.1% of CV AB-B
PRODUCT DATA
63-2618-01