Forbes Marshall - Trusted Partners in Steam Engineering & Control Instrumentation

Forbes Marshall Bucket Trap FMBT

FMBT is an inverted bucket trap highly recommnded for condensate recovery from high pressure lines. FMBT comes with a robust inverted bucket mechanism which makes teh trap withstand water hammers or pressure fluctuations.

FMBT comes with an internal air vent and integral strainer screen. FMBT fits on horizontal pipelines and can be maintained in line.

  • The ruggedness of the mechanical assembly inside the trap makes it resistant to water hammering and in-pipe turbulence.
  • Engineered and constructed to work seamlessly on high pressure applications where other steam traps might fail.
  • FMBT is designed for in-line maintenance making its maintenance convenient and quick.
  • FMBT can continuously recover condensate from high pressure condensate lines.

Variants

FMBT30

Size and Pipe Connections
DN 15 , 20 and 25 with Screwed BSPT/ NPT ends

FMBT50
FMBT66-U

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    Frequently Asked Questions

    What makes a bucket trap resistant to water hammering?

    A bucket trap is constructed in such a way that the condensate is forced to changes its course multiple ties before it enters the trap. As a result, when the condensate enters an inverted bucket trap, it has lost all its momentum and does not damage the trap internals making the trap water hammer resistant.

    What is the function of the Forbes Marshall Bucket Trap (FMBT)?

    The Forbes Marshall Bucket Trap is a steam trap designed to efficiently discharge condensate while preventing steam loss. Its robust design makes it suitable for high-pressure and high-temperature applications in steam systems.

    What industries and applications are best suited for the FMBT?

    The FMBT is particularly effective in applications involving main steam lines, process equipment, and heat exchangers, where consistent condensate removal and energy efficiency are critical.

    What is the working principle of the Forbes Marshall Bucket Trap (FMBT)?

    The Forbes Marshall Bucket Trap (FMBT) operates on the density difference between steam and condensate. Inside the trap, an inverted bucket floats in response to the presence of steam or sinks when filled with condensate. This mechanism offers durability, resistance to water hammer, and reliable performance even under fluctuating load conditions.

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