Features

• Unique dual-V ball features a secondary (Small) V-notch allowing extremely small, accurate flow rates
• The primary (Large) V-notch provides straight through and non-clogging flow
• Dual-V ball allows rate changes and controls fluids with a rangeability in 250:1
• Equal percent flow characteristic
• Rotary-valve design provides shearing action between the V-notch ball and the seat, promoting a smooth, non-clogging operation
• Spring loaded stellited metal seat
• ANSI / FCI 70-2 Class V
• Unibody design protect from the effect of piping stress
• Minimum body cavity reduces build-up
• Fugitive emissions control for flammable and non-flammable applications
• Available in flangeless or flanged construction
• Multiple, adjustable ring packing allows easy adjustment without valve disassembly or actuator removal

Features

• Rotary-valve design provides shearing action between the V-notch ball and the seat, promoting a smooth, non-clogging operation.
• Straight-through flow design provides high capacity for fluids.
• With a single-seat design, torque is lower than typical trunnion design valves, for ease of operation and reduced actuator cost.
• Two seat designs:<ul><li>Laminated seat provides ASME/FCI 70-2 class IV shut-off and withstands tough operating conditions.</li><li>Thick (solid) seat for high-velocity and abrasive or erosive service.</li></ul>
• Segmented, V-notched ball features high rangeability and smooth throttling action.
• Choice of full and reduced port, providing the right flow capacity for every application at low cost.
• Machined ISO 5211 top mounting flange (VA series only).
• Heavy-duty, stainless steel shaft for high strength and rigidity.
• Multiple, adjustable ring packing allows easy adjustment without valve disassembly or actuator removal.
• Shaft bearings assure a durability, smooth and easy valve operation.
• Positive alignment of split body.
• The spline connection minimizes the backlash of shaft and disk. It results excellent control performance.

Features

• Trim components are interchangeable with existing Fisher V150, V200, and V300 series B valves.
• Flanged valve body design eliminates exposed line flange bolting, reduces alignment and installation time, and promotes secure valve installations and piping integrity.
• The heavy-duty, metal seal construction provides long service life in demanding applications.
• Precision machined parts, pressure-balanced seal, and low friction bearing designs allow smooth, precise movement of the ball.
• Precise contouring of the Vee-Ball provides a modified equal percentage flow characteristic.
• Satisfies installation requirements where expanded downstream piping is specified.
• Unique dimensions typical of expanded outlet ball valve designs.
• One-piece valve body improves structural integrity of the pressure boundary by eliminating leak paths that could be caused by the gaskets in two-piece, bolted valve designs

Features

• The valve body, shaft, and bearings are fully protected by hard wear-resistant trim materials.
• The throttled flow stream is guided through a specially shaped flow ring to minimize turbulence and impingement on the pipe wall.
• When used in reverse flow mode, it keeps the high velocity down stream of the vena contracta within the flow ring bore at the outlet of the valve. Compared with other styles of valves, the exit flow is essentially parallel with the flow ring wall and a minimum of flow impingement occurs.
• Full flanging on the valve body allows the valve body to be easily aligned centrally with the pipe flanges, an essential requirement in avoiding erosion across the flange faces.
• Precise contouring of the V-notch ball provides a modified equal percentage flow characteristic.
• The valve body, complete with flanges, is made from a one-piece casting. No welding is employed.

Features

• Shaft and trunnion guiding provides improved dynamic control.
• Standard construction materials comply with NACE Standard MR0175 / IS 15156.
• Self-adjusting seals are pressure assisted to provide Class VI shutoff for long, reliable service. Design incorporates a heavy duty S31600 stainless steel carrier that retains the composition seal.
• Comes standard with a base bracket allowing the valve to sit upright.
• The ball trunnions are designed for demanding applications requiring long service life, with a reduction in maintenance time and costs.
• Design comes standard with a dual seal arrangement.
• Optional fire safe construction.

Features

• The seat ring design self-centers, self-laps, and dynamically aligns with V-notch ball, giving superior cycle life.
• No special orientation, precision clamping, or repetitive centering of V-notch ball and seat ring is required when tightening the retainer, promoting accurate alignment and easy assembly.
• Precise contouring of V-notch ball provides a modified equal percentage flow characteristic.
• Unrestricted, straight-through, flow design provides greater capacity than many conventional globe and rotary eccentric plug valves.
• Integral valve flanges mate with many different classes of pipeline flanges, satisfying a variety of piping requirements.
• The V-notch ball cams into and out of the seat minimizing contact with the seat ring for reduced wear and friction.

Features

• The splined ball to shaft connection, splined shaft to actuator connection, double power-end bushing assemblies, and trunnion guiding, all provide improved dynamic control.
• Up to -20 dBA acoustical attenuation can be achieved for the V260A valve within a single-stage construction. Dual-stage construction can provide up to -25 dBA attenuation.
• The attenuator is an integral part of the seal assembly. The seal wipes to ball surface, not the attenuator, promoting increased service life.
• Materials are available that comply with NACE Standard MR0175-2002.
• Self-adjusting seal(s) that are pressure assisted provide tight shutoff for long reliable service.
• The ball trunnions are designed for demanding applications requiring long service life, with a reduction in maintenance time and costs.
• The attenuator is active throughout the ball rotation for very demanding services or a characterized attenuator is used to match the service conditions.

Features

• Tapered-polygon ball-to-shaft connection and clamped splined actuator connection remove lost motion or deadband from the drive train.
• Reduced ball port design provides a modified equal percentage flow characteristic and an excellent response characteristic.
• Materials are available for applications handling sour service. These materials comply with the requirements of NACE MR0175-2002.
• Pressure-balanced drive shaft design with PTFE-lined bearings and pressure-assisted shaft sealing arrangement provides for a long life of reliable service.
• Two-piece ball and shaft assembly allows for complete trim overhaul; parts replacement is kept to a minimum.
• The optional live-loaded packing system is designed with very smooth shaft surfaces and live loading to provide excellent sealing.
• The optional live-loaded packing system is designed with very smooth shaft surfaces and live loading to provide excellent sealing.

Features

• Flanged body design eliminates exposed line flange bolting, reduces alignment and installation time, and promotes secure valve installations and piping integrity.
• The solid HD ball seal construction provides long service life in demanding applications.
• Precise contouring of the Vee-Ball provides a modified equal percentage flow characteristic.
• Materials are available for applications involving sour liquids and gases. These constructions comply with NACE MR0175-2002, MR0175-2003, MR0103, and MR0175/ISO 15156.
• Ball seal inspection and replacement is done at the valve body inlet, without removing the actuator or disassembling the valve.
• The one-piece valve body improves structural integrity of the pressure boundary by eliminating leak paths that could be caused by the gaskets in two-piece, bolted valve designs.
• The optional ENVIRO-SEAL™ packing systems are designed with very smooth shaft surfaces and live loading to provide exceptional sealing.

Features

• Available with flangeless or flanged body style for flexible installation.
• The solid HD ball seal construction provides long service life in demanding applications.
• Precise contouring of the Vee-Ball provides a modified equal percentage flow characteristic.
• Materials are available for applications involving sour liquids and gases. These constructions comply with NACE MR0175-2002, MR0175-2003, MR0103, and MR0175/ISO 15156.
• Ball seal inspection and replacement is done at the valve body inlet, without removing the actuator or disassembling the valve.
• The one-piece valve body improves structural integrity of the pressure boundary by eliminating leak paths that could be caused by the gaskets in two-piece, bolted valve designs.
• The optional ENVIRO-SEAL™ packing systems are designed with very smooth shaft surfaces and live loading to provide exceptional sealing.