Submittal Sheet
Table Of Contents
SPECIFICATION DATA
® U.S. Registered Trademark
© 2004 Honeywell International Inc.
All Rights Reserved
63-1301
VGF
Flanged
Globe Valves
VGF31
VGF32
VGF21
VGF22
VGF Flanged Globe Valves are used for 2-position or modu-
lating control of steam, hot water, or chilled water-glycol
solutions up to 50% concentration in heating, ventilation and
air conditioning (HVAC) systems. They can be operated by
ML6984/7984, ML6420/6425, ML6421/7421 Electric Linear
Actuators, MP953 Pneumatic Actuators, Modutrol
®
Motors
with Q5001 valve linkage, or MN/MS Series Direct Coupled
Actuators with Q5020 valve linkage. Three-way bodies are
available in mixing or diverting style with equal percentage
and linear flow characteristics. Pressure-balanced models
feature very high, low leakage close-off ratings.
FEATURES
• ANSI Class 125 and Class 250 cast iron bodies with
flanged end connections.
• Face-to-face flange dimensions per ANSI/ISA S75.03
standard.
• Sizes from 2-1/2 to 6 inches.
• Metal-to-metal seating for long life span.
• Stainless steel trim standard.
• Differential pressure up to 175 psi, ANSI Class IV on
pressure-balanced models.
• Steam inlet pressure up to 100 psig.
• Self-adjusting packing.
• Accurate positioning with equal percentage and linear
flow characteristics to ensure state-of-the-art
temperature control.
• Universal bonnet for direct-coupled electric and
pneumatic actuators for easy mounting, or
linkage-coupled Modutrol
®
Motors and MN/MS Series
direct-coupled actuators.
• Constant total flow throughout full plug travel (3-way
bodies).
• Not suitable for combustible gasses.
SPECIFICATIONS
Models:
! See Tables 2 and 3.
Dimensions:
! See Fig. 1 and 2.
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.
Valve Body Temperature-Pressure Ratings:
! Water: ANSI Class 125 and 250. See Table 1.
! Steam: 100 psig (6.9 bar) maximum.
Flow Capacity:
! See Table 4.
Stroke and Mounting:
! 2-1/2 and 3 inch: 3/4 in. (20mm), 1-3/8 in. bonnet.
! 4 to 6 inch: 1-1/2 in. (38mm), 1-7/8 in. bonnet.
Maximum Temperature Differential (alternating hot/cold
water):
! 108°F (60°C).
Flow Characteristic:
! VGF__E_: Equal percentage, port A-AB.
! VGF__L_: Linear, port A-AB.
! VGF3__(all 3-way bodies): Linear port B-AB.
Rangeability:
! 50:1.
Close-Off Pressure (maximum):
! VGF21_P pressure-balanced: 175 psi (12 bar).
! All others: Proportional to actuator force. See Table 4.
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: See Table 4.
Valve Body:
! End connections:
! Face-to-face flange dimensions per ANSI/ISA 75.03.
! Bolt holes conform to ANSI B16.1.
! Material: Cast iron, ASTM A126 Class B (GG25).
Trim:
! Seat:
! Mixing valve: body integrated.
! All: Stainless steel.
! Plug: Stainless steel, skirt guided.
! Stem: Stainless steel.
! Packing: Spring loaded PTFE cone rings.
Table 1. Medium Temperature and Maximum Pressure.
Temperature
°F (°C)
System Pressure
ANSI Class 125
(VGF21, VGF31)
ANSI Class 250
(VGF22, VGF32)
35 to 130 (2-66) 175 psig (1206 kPa) 400 psig (2758 kPa)
Up to 200 (< 93) 165 psig (1138 kPa) 370 psig (2251 kPa)
Up to 250 (< 121) 150 psig (1034 kPa) 340 psig (2344 kPa)
Up to 300 (< 149) 140 psig (965 kPa) 310 psig (2137 kPa)
Up to 356 (< 180) 125 psig (862 kPa) 280 psig (1931 kPa)