Steam traps Inverted bucket
8
Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions (IM-P625-03) supplied with the product. The USM21 can be installed on any Spirax Sarco pipeline connector. See separate Installation and Maintenance Instructions for Spirax Sarco pipeline connectors (IM-P128-06, IM-P128-11 and IM-P128-13). Disposal The USM21 trap unit is manufactured from stainless steel and is therefore totally recyclable. No ecological hazard is anticipated with the disposal of this product provided due care is taken. Spare parts The USM21 is a sealed non-maintainable trap unit. No internal spares are available. The spares which are available are shown in heavy outline. Parts shown in a grey line are not available as spares. Available spares Connector screws (2 off) 11 Complete USM21 trap unit inclusive of gaskets (9 and 10) and connector screws (11)
Note : The gaskets contain sharp metal reinforcement, please handle with care.
How to order spares Always order spares by using the description given in the column headed 'Available spares' and state if ordering a complete trap the nominal operating temperature of the steam trap. Example : 2 off Connector screws for a USM21 sealed bimetallic steam trap.
Gaskets
11
10 9
Trap unit
8.6 25
Recommended tightening torques
or mm
Item Part
N m
11
Connector screws
"
33
TI-P625-04 CMGT Issue 4
Page 5 of 5
USM21 Sealed Bimetallic Steam Trap for use with Pipeline Connectors
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