TD52 thermodynamic steam trap

Where TD52 fits in the range

TD52 is the search-led route for users who are no longer looking for a generic disc trap and instead need direct product information for Spirax Sarco TD52, TD52M or a nearby installed-base replacement. The current documented product boundary sits around the maintainable TD52M / TD52MLC / TD52MA / TD52MLCA family, so this page is the right commercial entry for that model cluster.

What current documentation confirms

Current technical and installation material confirms these boundaries:

• TD52M family products are maintainable thermodynamic steam traps in stainless steel
• the route is aimed at relatively small condensate duties such as steam mains
• LC variants cover lower-capacity duties and A variants add anti-air-binding disc routes
• published threaded BSP or NPT sizes run from 1/4" to 1", with TD52MLC and TD52MLCA at 1/2"
• the design condition is PN63
• minimum differential pressure is 0.25 bar for TD52M / TD52MLC and 0.8 bar for TD52MA / TD52MLCA
• an insulation cap is documented as an option on 3/8", 1/2" and 3/4" sizes

Published material also confirms preferred horizontal installation, although the trap can operate in other orientations.

What to confirm before ordering or replacement

Before moving into final specification, confirm:

• whether the duty should stay on the standard TD52M route or move to an LC low-capacity variant
• whether start-up air release or anti-air-binding behaviour makes the A variants more appropriate
• which threaded size and thread standard should stay in 1/4", 3/8", 1/2", 3/4" or 1"
• whether an insulation cap is wanted for outdoor or heat-loss-sensitive installation points
• whether the installation will remain accessible for future disc replacement and routine maintenance

If the project still needs wider family comparison, return to thermodynamic steam traps or the wider steam traps route. If the next step is working-principle confirmation, continue into thermodynamic steam trap knowledge.