The Fisher™ Micro-Flat Cavitation Trim is an engineered valve trim solution designed for clean, cavitating liquid applications with very low flow rates and pressure drops up to 241 bar (3500 psi) .
The Fisher™ Micro-Flat Cavitation Trim is an engineered valve trim solution designed for clean, cavitating liquid applications with very low flow rates and pressure drops up to 241 bar (3500 psi) .
This trim uniquely combines two specialized technologies: the proven cavitation control of the Cavitrol III trim with the precise low-flow capabilities of the Micro-Flat trim . It is designed not to eliminate cavitation entirely, but to control its location, thereby minimizing damage and ensuring stable performance in critical services .
Ideal for industries such as power generation, hydrocarbon processing, and other severe service environments, this trim helps extend valve life, reduce maintenance costs, and enhance process reliability where conventional trims often fail.
Manages Cavitation & Very Low Flows: Effectively controls cavitation in very low flow applications .
Robust Design for Long Service Life: Features a protected seat design that separates the shut-off function from the throttling area, shielding seat surfaces from high-velocity throttling flow . Hardened trim materials provide excellent erosion resistance, extending service life . The cage-style trim can be disassembled and inspected without removing the valve body from the pipeline, simplifying maintenance .
Compliant with International Standards: The trim carries multiple certifications, ensuring suitability for use in various regulatory environments .
Boiler feedwater systems
Pump recirculation (minimum flow protection)
High-pressure drop water services
Clean, cavitating liquid processes
| Attribute | Specification |
|---|---|
| Brand | Fisher™ |
| Trim Model | Micro-Flat Cavitation Trim |
| Primary Application | Cavitation Control, Very Low Flow |
| Max Pressure Drop | 241 bar (3500 psi) |
| Flow Characteristic | Linear |
| Shutoff Class | Class IV & V (FCI 70-2) |
| Valve Sizes | NPS 1, NPS 1-1/2, NPS 2 |
| Standard Materials | Carbon Steel, Stainless Steel |
| Process Connections | Flanged, Butt-Weld, RTJ, Threaded, Socket-Weld |
| Pressure Rating | ASME |
| Certifications | SIL, ATEX, CUTR, PED, CRN, NACE |
For further technical details, specific material recommendations, or to discuss your application requirements, please do not hesitate to contact the sales team at Kateteco. We are here to provide you with the ideal solution for your demanding flow control needs.









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KateTeco (Tianjin) Technology Co., Ltd. serves as an outstanding partner in the field of industrial fluid automation, specializing in the introduction and integration of high-end valves and instruments. We are committed to providing customers with safe, reliable, and intelligent system solutions. By leveraging global leading product resources and supported by systematic professional training and on-site technical assistance from Emerson’s experienced engineers, we ensure that customers can respond promptly and accurately to technical challenges.
With full lifecycle services covering installation, commissioning, operation, maintenance, and replacement, we deliver a true one-stop service system. This allows our customers to enjoy seamless, efficient, and high-quality assurance, supporting enterprises in achieving stable operation and continuous upgrades.


✅ Is it 100% genuine? —— We guarantee: All products are official and come with an 18-month warranty.
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