Maintenance - Spirax Sarco 211 Installation And Maintenance Instructions Manual

Note:
Before actioning any maintenance programme observe the 'Safety information' in Section 1.
Warning
The cover gasket contains a thin stainless steel support ring which may cause physical
injury if not handled and disposed of carefully.
It is recommended that new gaskets and spares are used whenever maintenance is
undertaken. Ensure that the correct tools and necessary protective equipment are used at all
times. When maintenance is complete, open isolation valves slowly and check for leaks.
How to fit the valve and seat assembly
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Isolate the trap and disconnect the outlet connection, open up the trap by undoing the
cover nuts (2).
-
Unhook the bucket (5) from the valve lever (11).
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Remove the valve seat (9).
-
Remove the valve guide plate (7) by undoing the two screws (6).
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Screw in the new valve seat (9), using a little Loctate 620 on the threads and making sure that
joint faces are clean. See Table 1 for the recommended tightening torques.
-
Fix the new valve guide plate (7) in position by using new screws (6) which are supplied,
hook the new valve lever (11) over the pins (part of the valve guide plate) and centralise
the valve to the orifice and tighten the screws (see Table 1 for the recommended tightening
torques).
-
Refit the cover using new gasket, tighten cover nuts (2) to the recommended tightening
torque figures shown in Table 1 and reconnect the outlet pipework.
-
Open the isolation valve slowly and check for leaks.
Note: In some earlier models of the 212 and 222 trap the hooks on the guide plate were
reversed. This no longer applies and the standard guide plate (7) as shown is the
correct replacement.
This also applies to the spares which are still available for the obsolete 214 and 224 traps.
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6. Maintenance

IM-S03-08 ST Issue 3