Spirax Sarco GKE 10, Spare Parts

Page: 13 / 16

3.341.5275.245
9
Note: Before actioning any maintenance programme observe the "Safety information" in
Section 1.
Safety note:
These traps are installed in medium pressure steam lines. Personnel doing the adjustment
and maintenance work should wear heavy gloves, long sleeve shirt and other equipment
designed to protect the wearer (goggles, face shield, etc...) in the event of a leak.
6.1 General information
To ensure the device’s long-term, safe operation, an adequate maintenance programme
should be prepared, involving regular inspection and cleaning, for which some important
instructions are given below. All work must be carried out or be supervised by a suitable
competent person.
Before undertaking any maintenance on the trap it must be isolated from both the supply
line and return line and any pressure allowed to safely normalise to atmosphere. The trap
should then be allowed to cool. When reassembling, ensure that all joint faces are clean.
6.2 Routine Maintenance
Check that the ball float is not deformed and does not contain water; in the case of
replacement, do not force the float arm, but remove it by undoing the split pin and dowel
and properly blocking it before unscrewing the nut blocking the float.
- Check that the mechanism’s movement is not hindered and that the valves move freely
to a completely closed position. To replace the main valve assembly, unscrew the four
nuts from the bolts. When mounting the new main valve assembly, check its condition
and the position of the cover gasket, and tighten the nuts uniformly.
- Inspect and clean the air vent assembly, checking that the passages are free and that
the valve plug and discs move without friction. Do not change the valve plug travel.
- Tighten to the recommended tightening torques (see table below).
- After reassembling open isolation valves slowly until normal operating condition are
achieved.
- Check for leaks and correct operation.
6. Maintenance
Recommended tightening torques
or
Item Size
mm
N m
Cover nuts
1½" - 40 24 A/F M 16 x 70 90
2" - 50 24 A/F M 16 x 70 90
Bracket screws
1½" - 40 M 8 x 15 18.2
2" - 50 M 8 x 15 18.2