TC Series Stainless Steel Clean Steam Thermostatic Traps

TC Series Stainless Steel Clean Steam Thermostatic Traps
Installation and Maintenance
Armstrong TC Series Stainless Steel Clean Steam Thermostatic Traps
This bulletin should be used by experienced personnel as a guide to the installation and maintenance of Clean
Steam thermostatic steam traps. Selection or installation of equipment should always be accompanied by
competent technical assistance. We encourage you to contact Armstrong or its local representative if further
information is required.
The Clean Steam Traps are intended to be installed in vertical lines with downward flow in order to insure that
the trap is self-draining. Verify that the flow direction arrow on the trap is in the correct downward position.
Any necessary fittings, gaskets, or clamps required for the steam trap’s sanitary end connections are not
If the steam trap has sanitary end connections, do not over-tighten clamps during installation. Over-tightening
may cause gasket failure. Once the slack in the clamp is taken up, it is typically necessary to tighten the nut
an additional ½” turn maximum.
Note: Model TC-S sealed traps are a welded non-repairable design and must be replaced when the trap’s
service life has expired.
Models TC-C and TC-R
1. Isolate trap from steam supply and allow it to cool down.
2. Remove the trap from the line if possible.
3. Disassemble trap by removing clamp or screws (depending upon model). Remove the gasket and
thermostatic element assembly.
4. Clean trap cap and body as necessary.
5. Install new thermostatic element assembly and gasket.
6. Assemble cap to body and place trap back in service.
7. Check for leaks and re-tighten clamps or screws as necessary.
Do not exceed maximum operating pressure below:
Maximum Allowable Pressure (Vessel Design)
Maximum Allowable Temperature
Maximum Operating Pressure
120 psig (8.3 bar)
350°F (177°C)
100 psig (7 bar)
150 psig (10 bar)
366°F (186°C)
120 psig (8.3 bar)
Armstrong International, Inc., 816 Maple Street, P.O. Box 408, Three Rivers, Michigan 49093 - USA Ph: (616) 273-1415 Fax: (616) 278-6555
Printed in U.S.A.
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