AV-327 [SCHNEIDER]
Gear Train Actuator Valve Linkages General Instructions;
| 型号： | AV-327 |
| 厂家： | 
SCHNEIDER ELECTRIC |
| 描述： | Gear Train Actuator Valve Linkages General Instructions |
| 文件： | 总4页 (文件大小：186K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AV-321, AV-327,
AV-329 & AV-330
Gear Train Actuator Valve Linkages
General Instructions
APPLICATION
The AV-321, AV-327, AV-329 and AV-330 linkages are used
to field install Schneider Electric gear train actuators to
Schneider Electric valve bodies.
ACCESSORIES
The actuators and the valve (see Table 2 for current valves
and Table 3 for obsolete valves) should be purchased
separately.
CLOSE-OFF RATINGS
See Table 2 for the close-off ratings on current valves.
TABLE 1. Restrictions On The Maximum Ambient Tem-
perature For The Actuators
Maximum Temperature of
Media in the Valve
Maximum
Ambient
(Check Ratings of Valve)
for Actuator
136° F (57° C)
125° F (52° C)
100° F (37° C)
260°F (126°C)
281°F (138°C)
300 to 366 °F (149 to 185°C)
PRE-INSTALLATION
Inspection
Inspect the package for damage. If damaged, notify the
appropriate carrier immediately. If undamaged, open the
package and inspect the device for obvious damage. Return
damaged products.
Required Installation Items
Tools (not provided):
• Appropriate wrenches for stem extensions, lock nuts,
packing nuts and bracket nuts.
• Appropriate screwdriver for actuator mounting screws.
Figure 1. Mounting Dimensions
Printed in U.S.A. 6-10
© Copyright 2010 Schneider Electric All Rights Reserved.
F-19068-6
TABLE 2. Linkage Selection and Valve Close-off Ratings
TYPICAL ACTUATOR *
TYPICAL ACTUATOR *
PART NUMBERS
NO NORMAL
TYPICAL ACTUATOR **
PART NUMBERS
NO NORMAL
PART NUMBERS
NORMALLY CLOSED
(STEM DOWN)
POSITION
POSITION
MA-318, MA-318-500, MA-416
MA-416-500, MA-418, MA-418-500
MP-2150-500
MA-419, MA-419-500
MP-421
MP-422
MP-361, MP-461-600, MP-465
MC-351, MC-421, MC-431
MP5-4651
NORMALLY OPEN
MC-4311, MC5-4311
MP-381, MP-382, MP-451
MP-452, MP-481-600, MP-485
MP-486, MP-4851, MP5-4851
(STEM UP)
MA-318, MA-318-500, MA-416
MA-416-500, MA-418, MA-418-500
MA-419, MA-419-500
MP-371, MP-471-600, MP-475
MP5-4751
REQUIRED LINKAGE
AV-329 (AV-300 & AV-29)
AV-329 (AV-300 & AV-29)
AV-330 (AV-300 & AV-30)
___________VALVE BODY INFORMATION_________
CLOSE-OFF
PRESSURE
PSI
CLOSE-OFF
PRESSURE
PSI
CLOSE-OFF
PRESSURE
VALVE BODY
PART NUMBER
VB-9323-0-5-12
VB-9323-0-5-13
DESCRIPTION
Cv
SIZE
PSI
3-WAY, DIVERTING
125 LB. FLANGED
"U"=68, "L"=75
"U"=85, "L"=95
2 -1/2"
3"
125
125
125 (USE CAM MARKED "44")
125 (USE CAM MARKED "44")
125
125
* Actuator must have a travel of 180° with a minimum torque of 50 lb.-in.
** Actuator must have a travel of 180° with a minimum torque of 100 lb.-in.
TABLE 3. Obsolete Valves Compatible with the Linkages
Valve
Body
Valve
Assembly
Part
Required Linkage for Actuators * with 180°
Stroke and a Minimum Torque of 50 Lb.-In.
Required Linkage for Actuators # with 180°
Stroke and a Minimum Torque of 100 Lb.-In.
AV-330 or
Valve
Sizes
Part
AV-321 or
AV-327 ** or
AV-329 or
Number
Numbers
VC-2004
VC-2024
VC-2104
VC-2106
VC-2107
VC-2124
VC-3044
VC-3047
VC-8044
VP-82
AV-300 & AV-21
AV-300 & AV-27
AV-300 & AV-29
AV-300 and AV-30
DYBB-121
DYBB-123
OYBB-109
OYBB-110
OYBB-113
OYBB-114
OYBB-115
OYBB-116
OYBB-119
OYBB-120
VB-202-0-1-P
VB-212-0-1-P
VB-804-0-1-P
VB-807-0-1-P
CYBC-372
CYBC-374
CYBC-375
CYBC-406
CYBC-408
CYBC-409
DYBB-140
DYBB-142
VB-202-0-2-P
VB-804-0-2-P
VB-817
VA-20
VA-100
VP-2124
VP-3044
VP-3046
VP-8044
VS-2023
VS-8043
VU-82
VA-2001
VA-2021
VA-2101
VA-2121
VA-3041
VA-8041
VC-20
VU-2024
VU-2124
VU-3044
VU-8044
1/2" to 2"
Yes
Yes
No
Yes (Use Cam Marked "39")
VC-21
VC-100
VP-83
VC-2004
VC-2006
VC-2007
VC-20
VP-100
VP-2024
VP-2026
VP-82
VU-2024
VU-3044
VU-8044
VC-100
VP-100
VP-2024
VP-2026
VP-3044
VP-3046
VP-8044
VS-2023
VS-8043
VU-82
VC-2004
VC-2006
VC-2007
VC-2004
VC-2024
VC-3044
VC-3047
VC-8044
VA-8171
VC-8174
VC-2604
2-1/2"
to 4"
No
No
Yes
Yes (Use Cam Marked "44")
VP-8174
VS-8173
VU-8174
1/2" to 3"
No
Yes
Yes
No
No
No
Yes
No
Yes (Use Cam Marked "44")
Yes (Use Cam Marked "39")
Yes (Use Cam Marked "39")
OYBB-276
VB-260
1" to
1-1/2"
1/2" to
2"
OYBB-309
VB-262
VP-2624
No
* Typical Actuators: MA-318, MA-318-500, MA-416, MA-416-500, MA-418, MA-418-500, MA-419, MA-419-500, MP-361, MP-361-304, MP-367
MP-371, MP-371-304, MP-377, MP-421, MP-422, MP-461-600, MP-461-621, MP-465, MP-465-304, MP-471-600, MP-471-621
MP-475, MP-475-304, MP-2110-601, MP-2110-621, MP-2150-500, MP5-2151-500, MP5-4651, MP5-4751,MU-47102
# Typical Actuators: MC-351, MC-421, MC-431, MC-4211, MC-4311, MC5-4311, MP-381, MP-381-304, MP-382, MP-387, MP-451, MP-452, MP-481-600,
MP-481-621, MP-485, MP-485-304, MP-486, MP-4851, MP5-4851, MU-48102, MU-48103, MU-48104, MU-48105, MUP-48101,
MUP-48102, MUP-48103, MUP-48104, MUP-48105, MUP-48106, MUP-48202, MUP-48203, MUP-48204
** AV-327 Neutral Band Linkage closes the bottom seat of the valve approximately 40° before the CW end of actuator rotation to allow setting of
the auxiliary switch in the last 40° of rotation to start a DX compressor, etc.
2
© Copyright 2010 Schneider Electric All Rights Reserved.
F-19068-6
INSTALLATION
Verify that fluid temperature of the media in the valve versus
the ambient temperature at the actuator does not exceed the
ratings shown in Table 1. Refer to Tables 2 and 3 to make sure
the valve, valve linkage and the actuator are compatible. See
Table 2 to determine if close-off is adequate.
2. Thread stem lock nut and stem extension down fully on
valve stem.
3. Place actuator on mounting bracket. Fasten actuator to
mounting bracket with the three 1/4"-20 screws. DO NOT
TIGHTEN SCREWS.
CAUTION
4. Place nylon bushing on actuator shaft.
• Installer must be a qualified, experienced technician.
NOTE
• Avoid locations where excessive moisture, corrosive
MA-31X and MA-41X actuators require that a "C" ring
be installed on actuator shaft before placing nylon bush-
ing on shaft.
fumes or vibration are present.
• Install all 2-way valves so that they close against the
flow. An arrow on the valve body or a tag indicates
the proper flow direction.
5. Position the actuator to the 3:00 (CW) or 9:00 (CCW) po-
sition that will have plunger cam pointing down. Use Fig-
ure 3 and Table 4 to determine if the 3:00 (CW) or 9:00
(CCW) is the correct position for plunger cam to be point-
ing down for the application.
• Always install 3-way mixing valves with two inlets
and one outlet.
• Always install 3-way diverting valves with one inlet
and two outlets.
• The actuators can be mounted in any position above
the centerline of the valve body. For steam applica-
tions only, mount the actuator above the valve body
at 45° from vertical. When selecting a location, allow
sufficient room for accessories and for service of the
product.
6. Place the plunger cam in the plunger, and slip the plunger
cam on the actuator shaft with the cam pointing down.
NOTE
For AV-330 (AV-300 and AV-30) see Tables 2 and 3 for
selection of correct cam.
7. Push the valve stem completely down against valve (low-
er) seat.
8. Screw stem extension until the holes the stem extension
and plunger line up.
9. Turn the stem extension up (CCW) two full turns for 1/2"
to 2" valves and 1-1/2 turns for 2-1/2" to 4" valves into the
plunger.
10. Raise the actuator up until the connecting pin can be in-
serted through the holes in the plunger and stem exten-
sion.
11. Tighten the actuator mounting screws.
12. Tighten the lock nut against the stem extension.
13. Place front cover over plunger assembly and fasten to the
actuator with two self-tapping screws.
14. Install the position indicator to end of the actuator shaft
pointing to "Closed" (3-way valve could be pointing to
"Open") and secure with screw.
Figure-2 Assembly of AV-321, AV-327, AV-329 and AV-330
to Obsolete Valves.
Assembly Procedure
1. Mount the bracket on the valve body by removing the pack-
ing nut and the bracket nut, placing the bracket on the
valve body, and replacing and tightening the valve bracket
nut and subsequently replacing the packing nut.
Figure 3. Actuator Shaft Position
(Front View)
NOTE
Position the bracket to a position that will make the wir-
ing of the actuator convenient.
F-19068-6
© Copyright 2010 Schneider Electric All Rights Reserved.
3
TABLE 4. CAM POSITION ON ACTUATOR SHAFT
MAINTENANCE
This is a quality product. Regular maintenance of the total system
is recommended to assure sustained optimum performance.
Std. Factory
Opt. Cam Position
Positions of Cam
except for Normally
Closed Valves w/MA-
3XX, 4XX Actuators
used to reverse
Control Action (Std.
for Normally Closed
Valve w/MA-3XX,4XX)
Actuator Shaft
Position
CW
Short tooth on
actuator shaft at
9:00
CCW*
Short tooth on
actuator shaft at
3:00
Figure 4. Plunger Spring Compression
(Valve Stem Down)
*Stem down at CCW end of strokes is not available with AV-327.
CHECKOUT
1. Drive the actuator so that valve stem is fully up (actuator in 3:00
or 9:00 position). If the valve is a three-way, check for plunger
compression (see Figure 4).
2. Drive the actuator so that valve stem is fully down (actuator in
3:00 or 9:00 position). Check for plunger compression (see Fig-
ure 5).
Compression Check
NOTE
Check the plunger spring compression (Figures 4 and 5).
The length of the stem extension should be adjusted so that
valve disc seats before the actuator reaches the end of the
closing stroke. The balance of the actuator travel is taken up
in the plunger spring compression which should be approxi-
mately 1/16" (1.6 mm). This provides pressure on the disc in
the closed position(s) and also compensates for disc and
seat wear. On three-way valves spring compression must be
provided on both upper and lower seats.
Figure 5. Plunger Spring Compression
(Valve Stem Up)
On October1st, 2009, TACbecame the Buildings business of its parent company Schneider Electric. This document reflects the visual identity of Schneider Electric,
however there remains references toTAC as a corporate brand in the body copy. As each document is updated, the body copy will be changed to reflect appropriate
corporate brand changes.
Copyright 2010, Schneider Electric
Schneider Electric
1354 Clifford Avenue
P.O. Box 2940
All brand names, trademarks and registered
trademarks are the property of their respective
owners. Information contained within this
document is subject to change without notice.
Loves Park, IL 61132-2940
www.schneider-electric.com/buildings
F-19068-6
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