ITT
Engineered Valves, LLC
Page 16 of 22
Technical Manual No. IOT1000P Effective 8/31/2018
REV LEVEL B
Seat (Item 17). Tighten the Set Screw (Item 18) so the spring seat is
secure. Remove the Limit Switch Box (Item 13). Place Oil Valve Return
Spring (Item 19) into the Spring Seat (Item 17) and mount the Limit
Switch Box (Item 13) using the 2 mounting Nuts (Item 29) with Lock
Washers (Item 28). Tighten these fasteners in a uniform manner, so the
box is not cocked during assembly. Item 29 should be torqued to
approximately 125 In-Lbs (14.1 Nm). Mount the Oil Valve POC Switch
(Item 20) to the Limit Switch Box (Item 13) using Washer (Item 23), Lock
Washer (Item 24) and Screw (Item 22). Verify the Spring Seat (Item 17)
dimension is set correctly. The Oil Valve POC Switch must be set per
section VI.
4.
Atomizing/Purge Valve Reassembly
Clean the thread/surface area in the Body (Item 1) of both the Purge Seat
(Item 10) and Seat Ring (Item 9). Apply Grafoil
GTS
sealant to both
the Purge Seat (Item 10) and Body (Item 1) threads, and screw into the
Valve Body (Item 1). Torque to 100 Ft-Lbs (135.6 Nm). Insert the Main
Stem (Item 8) into the Valve Body (Item 1). Place the Seat Ring Gasket
(Item 21) over the Seat Ring (Item 9), apply Grafoil
GTS
sealant to
both the Seat Ring (Item 9) threads and body threads and screw into Valve
Body (Item 1). Torque to 130 Ft-Lbs (176.3 Nm). Place Body Gasket
(Item 7) on End Flange (Item 2). Carefully slide End Flange (Item 2) and
Body Gasket (Item 7) over the Main Stem (Item 8) making sure not to
damage the Packing (Item 4). Lubricate the 4 end flange Screws (Item 6)
with antiseize compound and fasten the End Flange assembly (Item 2)
onto the Valve Body (Item 1). Torque the end flange Screws (Item 6) in
two uniform increments. Torque screws initially in a crisscross pattern to
40 Ft-Lbs (54.2 Nm), repeat using 65-70 Ft-Lbs (88.1 - 94.9 Nm) and
recheck. Screw the stem connector onto the Main Stem (Item 8) and
tighten set screws.
