Dual Plug Valves are heavy service valves and are mounted between two oil coolers inside a reservoir tank. These valves are simple in design and are usually submerged – therefore they are not subject to the effects of corrosive conditions. Maintenance is limited to periodically oiling the hammer blow handwheel at the oil hole and replacing washers and seals. The only other moving part is the plug which is lubricated by the flowing media.
When ordering refurbishment services be sure to give all the data on the valve reference plate, the number of the sectional illustration, and piece list forming part of this bulletin. Also, the name and number of the parts required as numbered and described.
Key Dual Plug Valve parts inspected to original specifications include
1 BODY
2 PLUG
3 PIN
4 EXTENSION COVER
5 SPECIAL PIN
6 WASHER
7 COTTER PIN
8 LIFTING SPINDLE
9 TANK FLANGE
10 STOP RING
11 RETAINING PLATE
12 RD. HD. SCREW
13 HDL. SET SCREW
14 COLLAR WITH LUG
15 LIFTING BUSHING
16 SPECIAL WASHER
17 HANDWHEEL
18 FILL. HD. SCREW
19 TURNING PLATE
20 HEX NUT
21 LIFTING PLATE
22 FILL. HD. SCREW
23 HANDWHEEL
24 KEY
25 STOP PIN
26 SEAL
27 VENT PIPE
28 SUPPORT STRAP
29 CAPSCREW
30 LOCK WASHER
31 CAPSCREW
32 COVER
33 PIPE PLUG
