Schneider Electric AV-497 Installation Instructions

Application

The AV-497 valve linkage kit is used to field assemble MK-6811 actuators onto 2-1/2” to 5” VB-8xxx series valves and MK-6911 actuators onto 6” VB-8xxx series valves.

Features

• Die cast aluminum mounting bracket.

• Valve position indication provided as standard.

AV-497

Valve Linkage for MK-6811 and MK-6911

General Instructions

Applicable Literature

F-Number Description Audience Purpose

Provides a comprehensive listing of Schneider Electric component

F-27383 Pneumatic Products Catalog

F-27199 Vx-8xxx Series Selection Guide

F-27193 VB-8213 Flanged Valves General Instructions Describes the valve’s features,

F-27194 VB-8223 Flanged Valves General Instructions

F-27197 VB-8303 Flanged Valves General Instructions

F-13985

F-22909 AK-42309-500 Positive Positioner General Instructions

F-26080 EN-205 Water System Guidelines

MK-6600 Series, MK-6800 Series, MK-6911 Pneumatic Actuators General Instructions

– Sales Personnel – Application Engineers – Installers – Service Personnel – Start-up Technicians

– Application Engineers – Installers – Service Personnel – Start-up Technicians

products, describing their features and specifications, and provides other reference material useful to their selection.

Provides features, specifications, mounting dimensions, and other criteria useful to the selection of Vx-8xxx series valves.

specifications, and possible applications. Provides step-by-step mounting instructions.

Describes the actuator’s features and applications. Provides step-by-step mounting instructions.

Describes the positioner’s features, specifications, and possible applications. Provides step-by-step mounting and adjustment instructions.

Provides treatment guidelines for water and steam systems.

SPECIFICATIONS

Refer to the VX-8XXX Selection Guide, F-27199, for information on close-off pressures, temperature restrictions (ambient and fluid), and valve assembly dimensions.

Table-1 AV-497 Valve Linkage Component Selection.

Valve

Valve Body

VB-8213-0-5-12 VB-8223-0-5-12 VB-8303-0-5-12

VB-8213-0-5-13 VB-8223-0-5-13 VB-8303-0-5-13

VB-8213-0-5-14 VB-8223-0-5-14 VB-8303-0-5-14

VB-8213-0-5-15 VB-8223-0-5-15 VB-8303-0-5-15

VB-8213-0-5-16 VB-8223-0-5-16 VB-8303-0-5-16

AK-42309-500 positive positioner optional.

AK-42309-500 positive positioner required.

Actuator

Size

2-1/2”

3”

MK-6811

4”

5”

6” MK-6911

Lock Nut

Stem

(1) 1/2”

Spacers

Not Used

(2)

Mounting

Bracket

(1)

Mounting

Bracket

Bolts

(2)

1-1/4”

Long

(2)

2-1/4”

Long

Connector

(1)

Indicating

Plate

(1) with

1/2” Hole

Stem

Extension

(1)

Scale

Length

1”

(25 mm)

2”

(51 mm)

INSTALLATION Inspection Inspect the carton for possible damage. If damaged, notify the appropriate carrier

immediately. If undamaged, open the carton and inspect the kit for obvious damage. Return any damaged products.

Requirements • Tools (not provided):

– Appropriate wrenches for stem extension, mounting bolts, and lock nuts.

• A source of pressurized air, suitable for applying air pressure to the actuator and

sufficient to fully stroke the piston.

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

Location Caution:

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

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

indicates the proper direction of flow. Flow is from port A (inlet) to port AB (outlet).

• VB-8303 may be piped as a mixing valve (two inlets and one outlet) or a diverting valve

(one inlet and two outlets). Flow is from ports A and B to AB (mixing) and from AB to A and B (diverting).

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

mount the actuator on the valve body at 45 from vertical.

+ 5 hidden pages