Emerson introduced the Fisher™ V280 full-bore trunnion-mounted ball control valve for severe and specialty pressure, flow, and process control applications. The valve provides excellent dynamic process control by utilizing a robust drive train unique to the market that is designed to guide the shaft and properly absorb energy. Available attenuators for liquid and gas process fluids offer an effective solution for combatting the negative consequences of cavitation, such as vibration, erosion, and noise.
The body connections of the V280 valve have been reengineered to significantly simplify the design and reduce the number of parts while utilizing the same construction for the inlet and outlet. This allows an easy retrofit of single or dual ball seals with standard or customized noise attenuating aerodomes or anti-cavitation hydrodomes on the inlet, outlet, or both. Typical applications include midstream oil and gas, particularly compressor anti-surge service.
The V280 is a fully rated ANSI class 900 valve, available in 6”, 8”, 10”, 12” and 16” sizes. A variety of high-performance packing materials are available, including ENVIRO-SEAL™ live-loaded packing. Optional special materials and constructions are available to accommodate specialty applications. The valve comes standard as a single-seal construction but is available with optional dual-seal construction, allowing bi-directional flow and double block-and-bleed operation.
The standard offering V280 complies with the NACE MR0175/ISO 15156 Sour Service/Sour Crude oil standard, carries the full ASME B16.5 Class 900 flange rating, and can handle fluid temperature ranges from -20 to 180 degrees F. Alternate seal options can handle temperatures from -50 to 400 degrees F. The valve can be fitted with several different positioners or auxiliary devices to suit hazardous or challenging environments.