Schneider Electric AV-600 Data Sheet

Application

The AV-600 linkage is used to field assemble MA-521x, MF-5x13, MP-521x, MP-541x, MPR-561x, MPR-571x, and MPR-581x round hydraulic actuators to 1/2" through 2" VB-7xxx and obsolete VB-9xxx twoway and three-way valve bodies.

AV-600

Hydraulic Actuator Valve LInkage Kit

General Instructions

Features

• AV-600 provides direct couple interface between

MA, MF, MP, and MPR-5xxx actuators and 1/2" to 1-1/4" VB-7xxx valve bodies.

Applicable Literature

• Environmental Controls Cross-Reference Guide, F-

23638

• Environmental Controls Reference Manual,

F-21683

• Environmental Controls Application Manual,F-

21335

• Pneumatic Products Catalog, F-27383

• Environmental Controls Valve Selection Guide, F-

26094

• EN-205 Water System Guidelines, F-26080

• A V-601 Linkage Extension Kit General Instructions,

F-26280

F-26279-4

SPECIFICATIONS

Temperature Restrictions

Verify that temperature of the media in the valve versus the ambient temperature at the actuator does not exceed the ratings shown in

Table-1 Restrictions on the Maximum Ambient Temperature for the Valve Actuator.

Table-1.

Maximum

Temperature of Media

in the Valve Body

(Check Ratings

of the Valve)

366°F (180°C) Do Not Use 88°F (31°C) 90°F (32°C) 90°F (32°C) 340°F (171°C) Do Not Use 93°F (34°C) 100°F (38°C) 100°F (38°C) 281°F (138°C) Do Not Use 103°F (39°C) 115°F (46°C) 140°F (60°C)

181°F (83°C) Do Not Use 120°F (48°C) 140°F (60°C)b140°F (60°C) 80°F (26°C) 140°F (60°C)

For applications requiring AV-601 refer to AV-601, Linkage Extension Kit General Instructions, F-26280.

Maximum allowable ambient temperature of the actuator.

Maximum Ambient Temperature of

MF-5x13, MP-541x, or MPR-5x1x

AV-600 Only for

Chilled Water

Applications Only

AV-600

& AV-601

140°F (60°C)b140°F (60°C)b140°F (60°C)

Maximum Ambient Temperature

of MA-521x or MP-521x

AV-600 Only

& AV-601

AV-600

Close-off Pressure Rating

Close-off pressure ratings are listed in Table-2 and Table-3. For current valve bodies, make sure the close-off pressure is adequate for the application.

Required Components

AM-602 Adaptor for current actuators to obsolete linkages. See Figure-7 through Figure-9. AM-603 Adaptor for obsolete actuators to AV-600. See Figure-7 through Figure-9. AV-601 Linkage Extension Kit

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.

b b b

Requirements • Tools (not provided):

– Two (2) 3/8" wrenches – TOOL-19, 1/8" diameter rod – TOOL-20-1, Packing and linkage wrench – TOOL-37, 1-5/8" open-ended wrench (optional) – 6" or longer ruler

• Linkage wrench (provided)

• Training: Installer must be a qualified, experienced technician.

Caution:

• Avoid locations where excessive moisture, corrosive fumes, or vibration is present.

• Install all two-way valves so that they close against the flow. An arrow on the valve body

or a tag indicates the proper flow direction.

• Always install three-way mixing valves with two inlets and one outlet.

• Always install three-way diverting valves with one inlet and two outlets.

• Do not install the actuator below the center line of the valve. For steam applications

mount the actuators above the valve body at 45° from vertical.

ASSEMBLY PROCEDURE

The AV-600 linkage kit contains parts for installation on both current 1/2" to 2" VB-7xxx series valve bodies and on obsolete 1/2" to 1-1/4" VB-9xxx and older valve bodies.

AV-600 Valve Linkage Kit Used with VB-7xxx Series Valves

The AV-600 linkage kit used on VB-7xxx series valve bodies require no stem height setting. Refer to Environmental Controls Valve Selection Guide, F-26094, for valves accommodating the AV-60 0 linkage kit.

Caution:

• It is essential that the proper parts be used for the valve body on which the linkage is

being installed to ensure proper actuator operation and close off.

• Do not attempt to use the square stem extension with VB-7xxx valves. Parts or valves

may be damaged internally.

Linkage Installation

The linkage kit is assembled onto the VB-7xxx valve body with the stem in the up position.

1. Thread the hexagon coupler onto the valve stem all the way to the bottom of the stem thread, finger tight (Figure-1).

Spring Compresion Screw

Spring Retainer

Hexagon Coupler

1/16" Max.

(1.6 mm)

Figure-1 Installation of Hexagon Coupler and Spring Compression Screw.

Caution: The hexagon coupler must reach to within 1/16" (1.6 mm) of the smooth section of the stem to assure proper seating. Do not use the Spring Compression Screw to run the Hexagon Coupler down.

2. Start the spring compression screw one turn or more into the hexagon coupler. Pull the valve stem completely up.

3. Slip the spring over the coupler and screw.

4. Place the retainer over the screw. Twist the retainer 45° to lock it in place on the spring compression screw.

5. Insert the linkage wrench (supplied with kit, also included on TOOL-20-1) through the spring coils to hold hexagon coupler.

Valve Stem

6. Tighten the spring compression screw. To establish proper linkage height, run the spring

Spring Retainer (Turn 45 degrees to lock in place)

Linkage Wrench (Hold to prevent turning.)

Spring

Turn until Spring Compression Screw bottoms firmly on valve stem

compression screw down until the screw end bottoms firmly on the stem top (Figure-2).

• On stem up closed valves (VB-722x) or 3-way valve (VB-73xx), you will feel the

screw bottom.

• On stem up open valve (VB-721x), the stem and hexagon coupler will begin to turn.

Figure-2 Completing Linkage Kit Assembly to Valve.

7. Confirm stem height setting: 2-5/16" (59 mm) maximum after installation on stem up open valves (VB-721x) 2-7/32" (56 mm) maximum on stem up closed (VB-722x) or 3-way (VB-73xx) valves.

8. Center the spring on top and bottom to assure smooth actuator operation. See Figure-3 for total assembly components required.

Actuator housing

Actuator base

Spring retainer

Spring

compression

screw

Hexagon coupler

Figure-3 Assembly of AV-600 Linkage Kit onto VB-7xxx Series Valve.

Packing nut

Mounting nut

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