A Cost-Efficient One-Gallon Bladder Expansion Tank for Fire Protection


Young Engineering, San Dimas, Calif., known for highly engineered, industrial-quality surge and pulsation control products, announced today that it has developed a new UL approved one-gallon, non-repairable Bladder Expansion Tank (BET) designed specifically for the fire protection industry to protect anti-freeze sprinkler systems from the damaging effects of thermal expansion.

“We had more than one goal when designing this one-gallon BET product,” said Winston Young, president of Young Engineering. “The simplicity of its design makes it unique. It’s compact design makes it easier to fit and install in smaller commercial or residential systems, it’s more cost-efficient for those smaller systems, and it still meets and exceeds safety requirements of both UL and NFPA.”


On systems that utilize backflow preventors, over-pressure problems can occur when temperature variation (excessive heat) cause the antifreeze to expand resulting in component damage. These new BETs alleviate this over-pressurization and can “absorb” the expanding fluid, controlling the pressure to a safe level. The National Fire Protection Association (NFPA 13) requires the use of expansion chambers in antifreeze systems which use backflow preventors.


Young Engineering Bladder Expansion Tank line is manufactured in accordance with ASME code Section VIII, Div. 1. Sizes range from one-gallon to 150 gallon. They are designed to 175 psi design pressure and guarantee a 5X safety factor meaning the product can go to five times the rated pressure without failure.

Product of the Year
Consulting-Specifying Engineer's Product of the Year (POY) contest is the premier award for new products in the HVAC, fire, electrical, and...
40 Under Forty: Get Recognized
Consulting-Specifying Engineer magazine is dedicated to encouraging and recognizing the most talented young individuals...
MEP Giants Program
The MEP Giants program lists the top mechanical, electrical, plumbing, and fire protection engineering firms in the United States.
November 2018
Emergency power requirements, salary survey results, lighting controls, fire pumps, healthcare facilities, and more
October 2018
Approaches to building engineering, 2018 Commissioning Giants, integrated project delivery, improving construction efficiency, an IPD primer, collaborative projects, NFPA 13 sprinkler systems.
September 2018
Power boiler control, Product of the Year, power generation,and integration and interoperability
Data Centers: Impacts of Climate and Cooling Technology
This course focuses on climate analysis, appropriateness of cooling system selection, and combining cooling systems.
Safety First: Arc Flash 101
This course will help identify and reveal electrical hazards and identify the solutions to implementing and maintaining a safe work environment.
Critical Power: Hospital Electrical Systems
This course explains how maintaining power and communication systems through emergency power-generation systems is critical.
Data Center Design
Data centers, data closets, edge and cloud computing, co-location facilities, and similar topics are among the fastest-changing in the industry.
click me