Features

• Designed according ASME section 1, ASME B31.1, ASME B16.34.
• For boiler systems up to 3206 psig.
• Rugged construction to withstand high pressure and high velocities.
• Excellent resistance to cleaning acids and wear caused by precipitated solids.
• No Seat, will not score or plug with dirt, will not leak
• loaded packing, will not leak after packing
• Combination of hardseat and seatless valves in a single body.
• Stellite seat faces
• Stellite seat faces

Features

• Dual range throttling - primary range plus a super capacity blast range.
• Rapid energy dissipation - controls the destructive forces inherent in high pressure drop service.
• Accurate and repeatable settings - micrometer dial assures setting accuracy and positive resetting capability.
• Quick-change disc - insert an interchangeable stem-disc into the same valve body to convert from one orifice size to another.
• Guided-disc - eliminates disc vibration and chatter.
• Loose disc: Disc design provides multiposition seating and assures positive alignment of seat and disc surfaces. This gives sure protection against premature failures from seat-to-disc “grind” prevalent in valves of integral stem-disc design.
• Dual-purpose disc - separate surfaces for shutoff and throttling.
• Stellite seat - resists corrosion and wiredrawing.
• In-line repair - Yarway reseating tool can be used to cut a new seat in-line.
• Resetting capability: The Hy-Drop® valve has positive resetting capability to accommodate multiple-operation programs with accurate flow control variations.

Features

• Compact and light weight design reduces installed piping costs.
• NPS 1/2 tri-clamp end connections standard with optional welded connections.
• Electropolished wetted interior finished to 30 Ra microinch (20 Ra microinch optional).
• Self-draining designed for clean-in-place (CIP) and sanitize-in-place (SIP).
• Closure diaphragm is polished 316 stainless steel; quick-disconnect bonnet aids closure diaphragm replacement.
• Elastomer seals meet FDA and USP CLVI requirements.

Features

• Whisper Trim™ III or WhisperFlo™ cages used in FBD or FBT valves can reduce noise produced by high flow rates and large pressure drops.
• Regeneration of valve noise is significantly reduced by reducing the outlet flow velocity with an expanded outlet design.
• The design eliminates gasketing problems caused by thermal expansion and contraction of long parts, such as the cage assembly.
• The ENVIRO-SEAL™ or HIGH-SEAL packing system options are available. These packing systems provide excellent sealing, guiding, and loading force transmission.
• A spring-loaded seal ring with PEEK anti-extrusion rings is available on FBT valves for Class V shutoff up to 316°C (600°F). Bore seal is available on FBD valves for Class V shutoff above 316°C (600°F).

Features

• Massive guiding positively aligns the valve plug in the seat ring for high pressure drop applications. The screwed-in seat ring completely encloses the seat ring gasket.
• Screwed bonnet/body joint allows repair or maintenance with a minimum of tools.
• Valve is available with VTC (ceramic) trim for service in very erosive applications. The valve plug is also available with a tungsten carbide tip and the seat ring can be fitted with a full-bore tungsten carbide insert for erosive service.
• Valve body and end connection constructions are available for API, as well as ASME standards.
• NACE trim and bolting materials are standard for all applications. These materials comply with the requirements of NACE MR0175-2002.

Features

• Rugged cage guiding provides increased valve plug stability, which reduces vibration and mechanical noise.
• HP valves have readily available trims capable of attaining full pressure drops.
• EH/HP and EHA/HPA valves with buttwelding end connections have Intermediate Standard Ratings. With nondestructive testing, these valves can conform to ASME Intermediate Special Ratings, which allow even higher pressure/temperature applications.
• Optional ENVIRO-SEAL™ packing systems provide an improved stem seal to help prevent the loss of valuable process fluid or emission of hazardous process fluid.
• Hardened materials of construction for the cage, valve plug, cage guiding, and other trim parts are standard for all applications, providing excellent wear resistance.
• Maintenance is simple and can easily be performed using common tools. Micro-Flute and Micro-Form valve plugs provide superb rangeability in high-pressure, low-flow applications, while maintaining tight shutoff.

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.