CPI TUBULAR GAUGE G23
INSTALLATION, OPERATING &
MAINTENANCE INSTRUCTIONS
SEETRU LIMITED
ALBION DOCKSIDE WORKS, HANOVER PLACE, BRISTOL BS1 6UT. ENGLAND
TEL. 0117 9279 204. FAX 0117 929 8193.
EMAIL:
WEB:
www.seetru.com
5
6. Slide guard tube and ant-rattle rings over sight tube, and refit gland nuts, bushes and ‘O’ rings
onto the sight tube. Screw gland nuts into adaptors/intermediate support bracket.
7. Refit sight and gauge tube assembly between valves.
8. Refit clamp plates, ancillary equipment and bolts at each end and tighten bolts – ensure ‘O’ rings
are in grooves in ancilliary parts (screw intermediate support bracket back to tank if fitted).
9. Close drain valve if fitted
10. Open top valve fully
11. Open lower valve slowly to prevent ASV closing
12. If ASV operates, close lower valve and then re-open slowly again – test for leaks, if any rectify
13. Close valves
14.
C. To replace spindle ‘O’ rings on drain valve assembly
This operation can be carried out with drain valve in situ, or removed from main valve. In either
case the main valve must be closed and the sightglass drained.
1. Loosen grub screw in side of drain body. Withdraw from body complete with plunger
2. Remove seal nut at base of drain valve body
3. Replace ‘O’ rings on plunger and seal nut
4. Refit seal nut and plunger in body. Unscrew plunger to ensure seal nut seats in counter bore
5. Tighten grub screw
6. Screw Plunger into seal
7. Open main valve and check for leaks – rectify if any
8. Close main valve
D. To remove Flange Gasket
WARNING:
The tank must be drained to a level below the valve before carrying out work to replace
the flange gasket.
1. Remove flange bolts
2. Replace flange gasket
3. Replace flange bolts and tighten bolts
E. To replace Gasket and/or Gland Assembly
WARNING:
The tank must be drained to a level below the valve before carrying out work to replace
the flange gasket.
Note: To replace gasket/spindle assembly the spindle must be removed from the body. (The body
can be left in situ.)
1. Turn valve handwheel anticlockwise as far as it will go. The gland nut (6) will then be visible with
easy access to the end of the body.
2. Remove set screw (8) and locking nut (9)
3. Withdraw spindle assembly from body
4. Separate handwheel from spindle
5. Remove gland nut (6) and spindle nut (5)
