Fisher™ TBX Steam Conditioning Valve

The Fisher™ TBX Steam Conditioning Valve, developed by Emerson, is an advanced control solution designed to provide precise steam pressure and temperature control in demanding industrial applications. Engineered for high-pressure, high-temperature steam systems, the TBX valve integrates pressure reduction and desuperheating functions within a single compact body—ensuring efficient, accurate, and reliable steam conditioning performance. With its angle-style, drilled-hole cage-guided design, the Fisher TBX ensures excellent flow stability, noise attenuation, and vibration resistance, even under severe service conditions. The valve’s integrated desuperheating section injects cooling water directly into the steam flow, maintaining optimal temperature and protecting downstream equipment such as turbines, heat exchangers, and process piping. The TBX is ideal for power generation, refinery, and petrochemical applications, where precise control of steam parameters is essential for operational efficiency, energy savings, and equipment longevity.

Technical Specification of Fisher™ TBX Steam Conditioning Valve

Certifications

PED, CRN

Critical Service

Noise Abatement, Steam Conditioning

Flow Characteristics

Linear

Material

SA105, F22, F91

Operating Temperature

High Temperature

Pressure Class

ASME

Process Connection Type

Flanged, Butt Weld, RTJ

Shutoff Class

Class IV (FCI 70-2), Class V (FCI 70-2)

Valve Size

NPS 4, NPS 6, NPS 8, NPS 10, NPS 12, NPS 14, NPS 16, NPS 18, NPS 20, NPS 22, NPS 24, NPS 26, NPS 28, NPS 30, NPS 32, NPS 34, NPS 36, NPS 38, NPS 40, NPS 42, NPS 44, NPS 46, NPS 48

Valve Size Standard

NPS

Other Configurations

Contact your local Emerson business partner or sales office to learn about additional specifications or options for this product.

Feature of Fisher™ TBX Steam Conditioning Valve

• Combines pressure and temperature control in a single valve.
• Rugged cage-guided design enables handling of full pressure drop of main steam.
• Whisper Trim ™ III and WhisperFlo™ trims help to attenuate the noise by 30 to 40 dBA.
• Use of the Fisher Bore Seal trim gives capability of standard Class V shutoff up to 593°C (1100°F). This unique balanced trim is field-proven.
• FEA designed valve body can handle the most demanding applications without thermal stress problems.
• Permits vertical stem orientation for ease of maintenance in most applications.
• The cage is case-hardened for maximum life and is allowed to grow during thermally induced excursions. The plug is continuously guided and employs cobalt-based overlays for guide bands and tight metal-to-metal shutoff against the seat.