Steam Traps

Find the thermostatic, float & thermostatic, thermodynamic and inverted bucket steam traps you need, from multiple manufacturers.

Thermostatic Steam Traps are balanced pressure devices that use vapor pressure, within a diaphragm or bellows, to open and close within the trap body dependent upon the surrounding temperature.

Thermostatic steam traps are available as:

  • Barnes & Jones
  • Edison
  • Spirax Sarco
  • Mepco/Dunham Bush
  • Watts
  • Plus many more

Float & Thermostatic traps are available in three distinct types:

The Parallel Series (also known as ‘H-Pattern’ is most commonly available in 3/4″ to 2″ sizes.

The In-Line Series is compact and is most commonly available in 1/2″ to 2″ sizes.

The High-Capacity Series is designed for high-pressure applications and is most commonly available in 2″ and greater sizes.

Thermodynamic steam traps (also called “disc traps”) uses the higher kinetic energy of flash steam over water to close the trap with static pressure. As condensate enters the trap, it lifts the disc and discharges out three individually-ported outlet holes.

The three outlet holes assure the vertical lift of the disc is parallel to the seat so no rubbing or tilting of disc is possible.

Designed for low maintenance with medium and high pressure steam, Barnes & Jones Bucket Traps feature an inverted bucket design with corrosion resistant stainless parts for optimal performance with blast coils, laundry equipment, hot water heaters, steam kettles and a broad range of industrial and process applications. 

Available from 1/2″ to 2-1/2″ sizes to meet nearly every industrial and process application.

Steam trap questions? We've got answers.

• Heating Systems
• Laundry Presses
• Food Processing
• Paper Making
• Textile Finishing
• Sterilizers
• Drugs and Chemicals
• Petroleum Refineries
• Feed Water Heaters
• Electric Power Generation
• Plastics Manufacturing
• Rubber Manufacturing

(Just to name a few places)

Steam must be prevented from passing beyond its point of use. Steam passing through and into the return system causes gross inefficiency and expense. The steam trap must close tightly to prevent this. As energy is extracted from steam in the form of heat, steam reverts back to a liquid state in the form of condensate. If this condensate is not removed as quickly as it is formed, the efficiency of the apparatus that requires the heat energy is greatly reduced. There will be flooding of the equipment and needless loss of capacity. The steam trap must be sensitive, fast operating and designed with a large water handling capacity.

In the formation of steam, dissolved air is released from the water. Air is an excellent thermal insulator. However, steam is used for its heat energy, and any insulation reduces the transmission of heat. Therefore, the steam trap must expel all such air that is formed, and be able to discharge it in large quantities very rapidly. A large cooking kettle will, when cold, be completely filled with air. The rapid removal of all this air is a prime requisite of a good steam trap if it is desired to bring the kettle up to operating temperature as quickly as possible. The surface temperature of laundry rolls that are air bound will be too low to do a good, fast ironing operation.

The short answer is… yes!

Repairing a steam traps is not only possible, but is often faster, cheaper and significantly easier than replacing an entire trap.

Check out our steam trap repairs page for more information.