Description
Product Description
Fisher YD and YS three-way cage-guided valves are designed for both throttling and on/off control applications, featuring balanced or unbalanced construction options to suit different operating conditions. The YD model handles both converging (combining two flows into one) and diverging (splitting one flow into two) services, while the YS is optimized specifically for converging applications. These robust valves are particularly well-suited for demanding oil and gas production environments, offering reliable performance even in challenging conditions involving sulfide and chloride stress-corrosion. Their cage-guided design ensures precise plug alignment and stable control, with balanced versions available to reduce actuator load in high-pressure differential situations.
Specifications
| Specifications | Details |
|---|---|
| Certifications | CRN, CUTR, Fugitive Emissions, PED |
| Critical Service | Corrosive, General Service |
| Flow Characteristics | YD: Linear; YS: Equal percentage, Linear |
| Material | Carbon Steel, Stainless, Cast Iron |
| Operating Temperature | Standard Temperature |
| Pressure Class | CL125, CL150, CL250, CL300, CL600, PN 16, PN 25, PN 40, PN 63, PN 100 |
| Process Connection Type | Flanged, Butt Weld, RTJ, Threaded, Socket Weld |
| Shutoff Class | YD: Class II (FCI 70-2), Class IV (FCI 70-2); YS: Class IV (FCI 70-2), Class V (FCI 70-2) |
| Valve Size | NPS 1/2, NPS 3/4, NPS 1, NPS 1-1/2, NPS 2, NPS 2-1/2, NPS 3, NPS 4, NPS 6 |
| 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. |
Features
-
Cost-Effective Actuator Compatibility
The YD valve’s balanced plug design allows pairing with smaller, more economical actuators, significantly reducing procurement and installation costs. -
Modular Design Reduces Maintenance Costs
A single valve body accommodates multiple trim configurations while utilizing Fisher easy-e universal bonnets, gaskets, and packing systems – minimizing spare parts inventory and expenses. -
Purpose-Built for Three-Way Control
Engineered specifically for diverting/mixing applications, available in multiple sizes (NPS ½”-6″), end connections (flanged/butt weld, etc.), port diameters, and trim materials to meet diverse process requirements. -
Eco-Sealing Option
Features the optional ENVIRO-SEAL packing system delivering superior sealing performance with optimized load transmission for extended service life. -
Wear-Resistant Hardened Components
Hard-faced trim materials (e.g., Stellite) ensure long-term reliability in high-erosion applications. -
Maintenance-Friendly Architecture
Cage-guided design enables quick disassembly for inspection, with replaceable plug-and-cage assemblies. Packing components are interchangeable with Fisher easy-e valve series for simplified maintenance. - Stable, Quiet Operation
Robust cage guidance system dramatically improves plug stability, effectively suppressing vibration and mechanical noise in sensitive processes.
INSTRUBESTproudly supplies premium Fisher YD and YS Three-Way Cage-Guided Valves that deliver exceptional process control reliability in demanding industrial applications. Our valves combine Fisher’s proven cage-guided technology with competitive pricing that helps operations maximize ROI without compromising quality. We maintain ready stock of standard configurations for fast delivery, while our technical team provides responsive after-sales support including installation guidance and maintenance consulting. By offering this balance of superior American-engineered products, cost efficiency, quick turnaround times, and dedicated service, INSTRUBESThas become a trusted partner for global clients in oil & gas, chemical processing, and power generation industries.

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