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STANDARD FEATURES
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ADVANTAGES
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Fire Safe - API 607 4th Edition
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Series FS50 flanged valves have been qualified by testing to API Standard 607, 4th Edition. The valve design incorporates a secondary metal seat in the body, providing the required shutoff should the seats be destroyed by fire.
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ASME B16.34 Design
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Full port, split body design meets all requirements of ASME B16.34 for Class 150, 300, and 600 ball valves.
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Blow-out proof, Heavy-Duty Stem
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The internal-entry stem is machined with a heavy shoulder to prevent blowout. All Class 600 stems are machined from high-strength 17-4PH stainless steel as a standard material.
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Anti-static Configuration
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Anti-static devices are included at two points on the valve stem to provide continuous ball-to-stem and stem-to-body grounding, to prevent build-up of static charge in the valve, and potential sparking conditions.
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Live-loaded Stem Seals
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Stem seals are live-loaded using Belleville springs to provide consistent sealing forces, reducing or eliminating the need for frequent seal adjustment.
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Fully Encapsulated Body Seals
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Provides consistent and controlled loading of the body seal compression through a full metal-to-metal contact joint design, eliminating seal extrusion and potential body joint leakage.
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Integral Mounting Pad
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Ideal for actuation. ISO 5211 mounting dimensions simplify fit and alignment between valve, bracketry, and actuator. Permits easy field conversion from manual operation to power actuation.
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Latching/Locking Handle
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All Sharpe Series 50 ball valves supplied with lever handles are designed to permit locking the valve in either the open or closed position. Sizes through 2" are supplied with a slide latch engaged at open and closed positions to prevent inadvertent operation.
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Slotted Seat Design
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Relief slots are provided at the perimeter of the seats to equalize pressure in the body cavity with the upstream line when valve is closed, preventing upstream seat extrusion and enhancing downstream seating performance.
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Choice of Seats and Seals
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A variety of seat materials is available for the most demanding applications, including TFE, RTFE, TFMTM and NOVA. Stem packing and body seals are die-formed flexible graphite.
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Floating Ball Design
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Precision engineered and machined solid stainless steel ball with relief hole in the stem slot prevents build-up of cavity pressure while the valve is in the open position.
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Material Traceability
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Body and end piece castings are marked with heat codes providing traceability to the chemical analysis and material test reports performed at the foundry. CMTR's (Certified Material Test Reports) are available upon request.
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Fugitive Emissions Testing
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Sharpe Ball Valves have been tested in accordance with ANSI/ISA-S93.00.01-1999 for fugitive emissions, which includes thermal cycling as well as mechanical cycling, and achieved a Leak Rate Category of 75 PPM. Details of testing, and test reports or certifications are available from on request from Sharpe Valves.
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* TFM is a registered trademark of DYNEON, LLC.
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