TDW D2000, Инструкции по установке, эксплуатации и обслуживанию

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Figure 14. With Clamp Ring Spread
Door Can Be Opened
NOTE: The pressure warning lock is not designed
or intended to be used as a pressure bleed-
down valve and should never be used as such.
2.3 Closing Procedures
A. Inspect, clean, and lubricate the O-ring,
O-ring grooves and sealing surfaces, and the
pressure warning lock. Replace the O-ring if
it is damaged.
WARNING: Replace damaged O-rings
immediately.
A damaged O-ring will cause
leakage of gases or fluids that
can lead to serious injury and
property damage.
B. Push the door firmly shut. Before the clamp
ring can be closed, the door must be
completely closed, showing no gap between
the door face and the hub face.
C. Close the clamp ring by pulling the clamp
ring handle over the top of the closure. Lower
it fully so that the pressure warning lock
screw can be inserted through the aligned
holes in the bars and threaded into its
bushing. The clamp ring does not use any
wedging action during closing since the
clamping surfaces are parallel to the door and
the hub faces. Do not force the clamp ring
handle if the clamp ring will not close freely.
Verify that the door is adjusted properly and
check for debris.
NOTE: As the clamp ring is closed, the bars
attached to the back of the clamp ring move
closer together (Figure 15). When the clamp
ring is fully closed, the holes in the bars are in
alignment. If the holes do not overlap, you will
not be able to thread the pressure warning lock
screw into the bushing. If the clamp ring
appears to be closed and the holes still do not
line up, re-open the clamp ring and check for
damage and debris.
Figure 15. Holes in Bars Don't Overlap When Clamp
Ring Handle Is Not in Closed Position
D. Install the pressure warning lock screw. Make
sure it is not cross-threaded into the bushing.
Tighten hand tight, and then add about one-
eighth of a turn with a small wrench. Do not
over tighten.
Figure 16. Pressure Warning Lock in Place
WARNING: Never attempt to pressurize
vessel until you have made sure
that door, clamp ring, and
pressure warning lock are fully
closed and secured.
A line spraying fluids or a door
opening suddenly can result in
personal injury or property
damage or both.
E. The vessel can now be pressurized to line
pressure and placed on-stream.