BARNES & JONES
Frequently asked questions
Common questions about BARNES & JONES from 3G Electric.
What is the maximum pressure rating for Barnes & Jones brass angle thermostatic steam traps?
The Barnes & Jones brass angle thermostatic steam traps, including the 122A, 134A, and 147A models, are rated for a maximum pressure of 25 psi. These traps are available with 1/2 in, 3/4 in, and 1 in FNPT inlets and have condensate capacities of 1,270 lb/hr, 2,450 lb/hr, and 4,100 lb/hr respectively. They are angle-design units without an integral strainer. The maximum pressure rating is a key specification for selecting the appropriate trap for your steam system. Ensure that the operating pressure does not exceed 25 psi for these models. For higher pressure applications, consider other Barnes & Jones steam trap types, such as the inverted-bucket series, which are available with higher pressure ratings.
What is the difference between Barnes & Jones thermostatic and inverted-bucket steam traps?
Barnes & Jones thermostatic steam traps, such as the 122A, 134A, and 147A, use a thermostatic element to discharge condensate and air. They are available in brass angle configurations with maximum pressure ratings of 25 psi and capacities up to 4,100 lb/hr. Inverted-bucket steam traps, such as the 8000 and 8011 series, use a bucket that rises and falls to open and close the discharge valve. These are made of cast iron, configured for in-line horizontal installation, and are rated for higher pressures up to 125 psig and temperatures up to 450°F. The choice between the two depends on system pressure, temperature, and capacity requirements, as well as installation orientation and material compatibility.
Are strainers included with Barnes & Jones steam traps?
No, the Barnes & Jones steam traps listed, including the brass angle thermostatic models (122A, 134A, 147A) and the cast iron inverted-bucket models (8000 and 8011 series), do not include integral strainers. The product descriptions specify 'No Strainer' or 'Strainer Not Included.' If your application requires a strainer, it must be installed separately in the steam line upstream of the trap. Strainers help protect the trap from debris and can extend its service life. Consult your system design to determine if a strainer is needed. 3G Electric can provide separate strainers if required; contact us for availability.
What are the connection sizes available for Barnes & Jones inverted-bucket steam traps?
Barnes & Jones standard inverted-bucket steam traps are available with 1/2 in or 3/4 in FNPT connections. For example, the 8000-2-125 has a 1/2 in FNPT connection, while the 8011-3-70 and 8000-3-20 have 3/4 in FNPT connections. These traps are cast iron and configured for in-line horizontal installation. The connection size must match your piping. Ensure that the trap's pressure and temperature ratings are suitable for your application. The maximum pressure ratings for these models range from 15 psig to 125 psig, and the maximum temperature is 450°F. Capacity ratings vary by model, from 685 lb/hr to 1,062 lb/hr.
Can Barnes & Jones steam traps be used in high-temperature applications?
The Barnes & Jones inverted-bucket steam traps are rated for a maximum temperature of 450°F. This makes them suitable for many industrial steam applications. The brass angle thermostatic steam traps do not have a specified maximum temperature in the provided data, but they are typically used in lower-pressure steam systems. Always verify that the trap's temperature rating meets or exceeds your system's maximum temperature. For applications above 450°F, consult the manufacturer for alternative materials or trap types. 3G Electric can provide technical specifications for each model to assist in selection.
How do I select the right Barnes & Jones steam trap for my application?
Selection depends on several factors: condensate capacity, maximum pressure, maximum temperature, connection size, and installation orientation. Determine the required condensate load in lb/hr and the system's maximum pressure and temperature. Choose a trap with ratings that exceed these values. For example, if you need a trap for a 25 psi system with a 2,000 lb/hr load, the Barnes & Jones 134A (2,450 lb/hr at 25 psi) could be suitable. Consider the installation orientation: angle thermostatic traps are for horizontal piping, while inverted-bucket traps are for in-line horizontal installation. Also, decide if a strainer is needed. 3G Electric can assist with selection; provide your specifications for a recommendation.
