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Bestobell Steam M3A/GM3 Series Delta Element Steam Trap


Bestobell M3A/GM3
KC Controls HB series Ball Valves  Bestobell Steam GM3/M3A Series Delta Element Steam Trap

For process and space heating services

Designed for fast start-up and modulating discharge with no live steam loss on services up to 30 psig. Ideal where a forged body with "Y" type strainer is required to handle light condensate loads including low pressure dripleg.


  • CRN Registration Number Available
  • Single blade element - offers long-term, trouble-free service because it's not prone to dirt build up 
  • Stainless Steel internals - highly resistant to fatigue and corrosion and completely renewable 
  • Built-in strainer and check valve - y-type strainer is included to protect trap from dirt; integral check valve prevents backflow during shutdown 
  • Modulating discharge - automatically adjusts to operating pressure and load, overcoming problems associated with cyclic discharge 
  • Continuous air and CO2 venting - maximizes heat transfer while minimizing corrosion 
  • No loss of live steam - utilizes thermostatic and thermodynamic forces for steam-tight shutoff for greater energy efficiency and extended seat life. 

For more information click on the pdf image above for full specifications, call KC Controls on 01293 538940 or send us an e-mail to