Leslie Controls CONTROL VALVES DLOS-2 & DDLOS-2 (150/300) - Manual

1
Installation, Operating,
and Maintenance
Instructions Parts List
10/9.5.1.2
Rev. 2
CONTROL VALVES
Low Pressure, Single Ported, Cage Trim
Classes DLO-2, DDLO-2 125# & 250# Cast Iron
Classes DLOS-2 & DDLOS-2 150# & 300# Cast Steel
Classes DLOS-2 & DDLOS-2 150# & 300# Stainless Steel
12501 Telecom Drive, Tampa Florida 33637
TABLE OF CONTENTS
SECTION I – INSTALLATION .................................................................................................................... 2
SECTION II – OPERATION ......................................................................................................................... 2
SECTION III – MAINTENANCE ................................................................................................................. 3
SECTION IV – PARTS LIST....................................................................................................................... 10
ILLUSTRATION INDEX
DRAWINGS, DIMENSIONS, TYPICAL INSTALLATIONS AND
MISCELLANEOUS DATA
Figure 1 - Typical Installation Expand as required for fluid flow………………………………………………2
Figure 2 - Typical Control Valve Station for Control of Compressible Fluids at 25% or Less of Inlet Pressure.
Expand further as required for fluid flow………………………………………………………………….2
Figure 3 - Typical Valve Cutaway………………………………………………………………………………3
Figure 4 - Installation Sequence…………………………………………………………………………………4
Figure 5 - Installation Sequence…………………………………………………………………………………4
Figure 6 - Installation Sequence…………………………………………………………………………………5
Drawing - Diaphragm Control Valve…………………………………………………………………………..11
Drawing - Accessory Mount View……………………………………………………………………………..12
Drawing - Diaphragm Control Valve CLASS D(D)LOS-2, D(D)LOAS-2 and CLASS
D(D)LO-2, D(D)LOA-2……………………………………………………………………………14
Drawing - Direct Acting……………………………………………………………………………………….17
Drawing - Reverse Acting……………………………………………………………………………………..18