Piping Specialties > Steam Traps > Bestobell Steam GSM17 and GCM17


Bestobell GSM17 and GCM17 In-Line Thermostatic Capsule Steam Traps

The Bestobell Steam GSM17 and GCM17 are thermostatic capsule steam traps for use in harsh environments. The GSM17 is made out of stainless steel and has a built-in strainer. The GCM17 has a forged carbon steel body and all stainless steel internals with a built-in Y type strainer and check valves. The GCM17 is used when there is significant condense flows that are required on process equipment.

Key Specifications

  • For small process equipment, tracers, and drip legs in harsh environments
  • All stainless or forged carbon stainless constructions
  • Trap can be disassembled to replace thermal capsule or inspect strainer
  • For capacities up to 1200 Lb/hr at up to 250 PSID

Specifications, Manuals, and Supporting Literature

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Model Selection Guide

Use this table to find the right model for your application.  Don't see the option you need? Call a Lesman sales specialist at 800-953-7626

Size Max. Differential Pressure Max. Operating
Max. Body
Catalog Number
3/8" 250 PSID 580 PSIG 750°F GSM17110
1/2" GSM17210
3/4" GSM17310
1" GSM17410


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