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.