Emerson Releases Fisher V280 Control Valve for Process Control Applications
The Fisher V280 is a control valve built to provide stable dynamic process control via a robust drive train designed to guide the shaft and properly absorb energy.
The Fisher V280 is a control valve built to provide stable dynamic process control via a robust drive train designed to guide the shaft and properly absorb energy. The valve was developed for applications in severe and specialty pressure, flow, and process control scenarios.
The Fisher V280
The Fisher V280 is a three-piece, trunnion mounted, full-bore control valve able to handle full CL900 pressure drops. The valve is designed to improve pressure performance, flow, and process control. The Fisher V280 is equipped with an optional drilled attenuator capable of controlling noise and vibration from high-pressure drop gases and liquids.
The Fisher V280 control valve. Image courtesy of Emerson.
The splined shaft connects to the actuator and can reduce lost motion. With double power-end bushing assemblies and trunnion guiding, the valve is suitable for managing dynamic control. Emerson's new valve is available in a variety of high-performance packing materials, including ENVIRO-SEAL live-loaded packing, as well as in optional special materials for specialty applications.
The standard model of the Fisher V280 complies with the NACE MR0175/ISO 15156 Sour Service/Sour Crude oil standard and carries the full ASME B16.5 Class 900 flange rating.
The body connections of the V280 are optimized to simplify design and reduce the number of components needed while also utilizing the same construction for the inlet and outlet.
This aerodynamic design choice allows for retrofitting single or dual ball seals with standard or customized noise attenuating aerodromes. Anti-cavitation hydrodomes are supported, either on the inlet, outlet, or both. In terms of dimensions, the V280 is an ANSI class 900 valve, available in 6", 8", 10", 12" and 16" sizes.
Fisher V270 Full-Bore Ball Control Valve. Image courtesy of Emerson.
The V280 standard offering is a single-seal construction, but the valve is also available with optional dual-seal construction to allow bi-directional flow as well as double block-and-bleed operation.
In all variants, the seal wipes the ball surface, not the attenuator (which is not part of the seal assembly), thus increasing the product service life. The control valve can handle fluid temperature ranges from -20 to 180 degrees F, or -50 to 400 degrees F for alternate seal options.
Built for Oil and Gas Sectors
Typical port ball valves applications include midstream oil and gas, used in conjunction with compressor anti-surge services. More generally, both full port and reduced port ball valves are well suited for various hydrocarbon and process industry applications.
These include pipeline, bypass, batch, monitor, and emergency shut-off service. The rangeability of this component is typically 100:1 for these machines.
To increase versatility, the Fisher V280 valve can be fitted with several different positioners or auxiliary devices to suit hazardous or challenging environments. Various attenuators for liquid and gas process fluids are also available to contain cavitation's negative effects like vibration, erosion, and noise.
The Fisher V280 valve is part of Emerson's portfolio of full bore ball control valves, together with the Fisher V260 and V270 valves. All products in this category are intended for demanding applications requiring a long service life, and a consequent reduction in both maintenance time and costs.
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