Product Overview

ManualsBrandsHoneywell ManualsHeating Supplies6" Three Way Flanged Mixing Valve w/ Equal Percentage Flow

Table Of Contents

SPECIFICATION DATA

® U.S. Registered Trademark

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)

Summary of content (4 pages)

PAGE 1
VGF21 VGF22 VGF32 VGF31 VGF Flanged Globe Valves are used for 2-position or modulating 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.
PAGE 2
VGF FLANGED GLOBE VALVES Table 2. VGF2 2-way. Table 3. VGF3 3-way. VGF2 Valve, Globe, Flanged, 2-way VGF3 Valve, Globe, Flanged, 3-way 1 ANSI 125 1 ANSI 125 2 ANSI 250 2 ANSI 250 EP Equal percent flow, pressure-balanceda EM Equal percent flow, mixing LD Linear flow, diverting ES Equal percent flow, standard 25 2-1/2 in. ports LP Linear flow, pressure-balanceda 30 3 in. ports LS Linear flow, standarda 40 4 in. ports 25 2-1/2 in. ports 50 5 in. ports 30 3 in. ports 60 6 in.
PAGE 3
VGF FLANGED GLOBE VALVES Table 4. Valve Sizes, Flow Capacities, Close-off Pressure Ratings, and Dimensions. Model Number (see Table 1) Size in. DN Cv (kvs) Dimensions, in. (mm) See Fig. 1 (Two-way Valves) or Fig. 2 (Three-way Valves) Close-off Pressure, psi (kPa), Leakage Rate with 400 lbf (1800N) actuatora A B C D Yb E 2-way valves, ANSI Class 125 Stem down to close. Equal percentage or Linear flow characteristic.
PAGE 4
VGF FLANGED GLOBE VALVES TYPICAL SPECIFICATION Automatic control valves shall have flanged fittings, 2-1/2 in. through 6 in. sizes, and shall be ANSI-rated to withstand the pressures and temperatures encountered. Valves shall have metal-to-metal seats, stainlesssteel stems, and replaceable spring-loaded reinforced carbon-filled teflon packing. Valves shall have a maximum leakage rate of 0.05% Cv at the control port. Valves shall have a 50:1 rangeability or better.