Leslie-controls DOT 3-WAY CONTROL VALVE Bedienungsanleitung

1 DOT 3-WAY CONTROL VALVE TABLE OF CONTENTS INSTALLATION...

10 It is solely responsibility of system designer and user to select products and materials suitable for their specific application re

2 ILLUSTRATION INDEX FIGURE 1 – CONVERGING OR MIXING SERVICE...

3 INTRODUCTION This Installation, Operation, and Maintenance Manual is intended to be as complete and up to date as possible. It covers in

4 INSTALLATION VALVE POSITION Install control valve in an accessible location. Connect supply and outlet pipe lines to valve as described

5 MAINTENANCE OF VALVE BODY SUB-ASSEMBLIES 1. DISMANTLING THE DOT 3-WAY CONTROL VALVE a. Loosen stem nut. Unscrew the valve plug stem fro

6 1. DIRECT ACTING DISMANTLING SIZES 35, 55, 55A, 85 Remove bolts/nuts, upper diaphragm case and old diaphragm. To examine, clean or replac

7 Figure 4 - 55 & 55A ACTUATORS Figure 5 - 55R (AR) & 85R (AR) ACTUATORS

8 4. TO CHANGE VALVE ACTION FROM NORMALLY OPEN TO NORMALLY CLOSED OR VICE-VERSA To reverse the action of a single ported diaphragm control

9 4. CONTROL VALVES WITH DIRECT ACTING ACTUATORS (AIR PRESSURE MOVES VALVE PLUG STEM DOWNWARD.) a. Screw valve plug stem upward into actu