Selection Guide
Table Of Contents
- 1. Determine the manufacturer, part number, size, and stroke of the competitive valve body.
- 2. Determine the type of actuator required (e.g. pneumatic, electric two-position, electric floating, electric proportional), th...
- 3. Consult the appropriate section of this selection guide to determine the required AV-8xx kit number, compatible TAC actuator part number, and TAC actuator linkage (if needed).
- Competitive Globe Valve Adapters
- AV-800 Series Application Overview
- 1. TAC actuator and adapter dimensions may need to be checked to assure proper clearances are maintained.
- 2. The replacement actuator and adapter listed represent what TAC believes are an equivalent. Actuators do not necessarily have ...
- 3. TAC assumes no responsibility for guaranteeing the acceptability of any suggested replacements. The suggestions contained herein should only be used as a guide.
- 4. Consult the valve manufacturer if the system pressures or temperatures are being changed to assure proper performance.
- 5. Pneumatic actuator close-offs are based on 20 psig to the actuator diaphragm
- 6. All specified close-offs are nominal, and can vary based on the age of the valve, tightness of the stem packing, and variations in stem drag
F-27470-3 © Copyright 2009 TAC. All rights reserved. 7
AV-803 — Actuator, Linkage, and Close-off Information for 1” Through 2” Two- and
Three-way Johnson Controls Valves (TAC Pneumatic and DuraDrive Spring Return
Actuators)
For three-way valves, use the lowest published close-off pressure (normally open or normally closed) for the
actuator selected.
AV-803 — Actuator, Linkage, and Close-off Information for 1” Through 2” Two- and
Three-way Johnson Controls Valves (TAC Forta Non-Spring Return Actuators)
Johnson
Controls
Valve
Models
Actuator MK-2690 Mx51-710x MK-6801 MK-6811 MK-6821 Mx51-720x
Additional
Linkage
AV-7400 Included
a
a
Linkage included in actuator.
AV-430 Included
a
b
b
1" and 1-1/4" Johnson valves that have 3/8" dia stems and 1/4 28 threads can be used with Mx51-720x actuators. Do not use these actuators on 1/4" dia stem
Johnson valves.
Valve
Stroke
1/2” 1/2” 1/2” 1/2” 3/4” 3/4” 3/4” 3/4”
Spring
Range
3-7 psig 5-10 psig 8-13 psig — 3-8 psig 5-10 psig 8-13 psig —
VG7xxxxx
VB-3754
VB-3974
VB-4322
VB-4324
1” Normally
Open
70
c
c
20 psig supply air pressure.
50
c
25
c
150 250
c
250
c
250
c
200
1-1/4”
Normally
Open
40
c
30
c
15
c
90
c
250
c
250
c
250
c
150
1-1/2”
Normally
Open
29
c
20
c
9
c
— 250
c
230
c
160
c
100
2” Normally
Open
Not Recom-
mended
Not Recommended — 160
c
120
c
90
c
65
1” Normally
Closed
9 30 90 80 160 250 200
1-1/4”
Normally
Closed
Not Recom-
mended
15 60 60 120 200 150
1-1/2”
Normally
Closed
Not Recom-
mended
— 40 80 170 100
2” Normally
Closed
— 20 50 90 65
Johnson
Controls
Valve
Models
Actuator M400A (-VB) M800A (-VB) M1500A (-VB)
Additional
Linkage
AV-811 for M400A, M800A, M1500A
Included for M400A-VB, M800A-VB, M1500A-VB
Valve
Stroke
3/4”
VG7xxxxx
VB-3754
VB-3974
VB-4322
VB-4324
1” 92 207
Not
Recommended
1-1/4” 56 130
1-1/2” 37 88 177
2” 19 48 98