ITT
Engineered Valves, LLC
Page 13 of 22
Technical Manual No. IOT1000P Effective 8/31/2018
REV LEVEL B
After completing Paragraph IV.B.1, unscrew Socket Head Cap Screws
(Item 6) which retain End Flange (Item 2) to Body (Item 1). Remove End
Flange and Body Gasket (Item 7). Be sure to thoroughly clean mating
gasket surface, but do not damage it. Insert Seat Ring Wrench (P/N:
44425) into lugs on Upper Seat Ring (Item 9). Unscrew and remove Seat
Ring (Item 9), Seat Ring Gasket (Item 21), and Main Stem (Item 8). Insert
other end of wrench into holes in Purge Seat Ring (Item 10) and remove.
3.
Oil Valve Disassembly
Remove Hex Nuts (Item 29) holding Limit Switch Box (Item 13) to End
Flange (Item 39). Note: These two nuts must be removed uniformly.
Remove Limit Switch Box (Item 13) and Oil Valve Return Spring (Item
19). Loosen Set Screw (Item 18) and unscrew Spring Seat (Item 17) from
Oil Stem (Item 12). Remove the Socket Head Cap Screws (Item 6)
securing End Flange (Item 39) to Body (Item 1), then remove End Flange
(Item 39), Oil Stem (Item 12) and Body Gasket (Item 7). Insert Seat Ring
Wrench in lugs of Oil Seat Ring (Item 11), and remove Oil Seat Ring and
Seat Ring Gasket (Item 21).
CAUTION
To properly unload the Oil Valve Return Spring, make
certain the nuts (Item 29) unthread from the studs. A hex
wrench can be used to keep the studs from rotating.
