Pinch Valve Sleeves
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Technical datasheet Pinch Valve Sleeves The core of the Flowrox pinch valve is the elastic sleeve, which is the only part in contact with the medium. The full bore sleeve integrates the valve perfectly to the pipeline, eliminates turbulence and minimizes pressure losses. Technologically advanced sleeves guarantee high wear and corrosion resistance, a trouble free operation and extended lifetime. SLEEVE DESIGN Pinch valves are commonly applied in aggressive, abrasive and corrosive media types or in high-pressure applications. To stand these conditions Flowrox sleeves are handmade layer by layer in a quality process covered by ISO 9001:2000. Outer layer Reinforcement cords Inner layer TECHNICAL FEATURES ● Size Range: 25 mm – 1000 mm ● Operating temperature: -50°C – +160°C ● Operating pressure from vacuum to 100 bar – gives the sleeve its pressure retaining capabilities – resistant to wear and chemicals High grade sleeve materials range from wear resistant styrene butadiene to numerous other elastomers and rubber combounds. They are highly resistasnt to abbrasive/corrosive slurries, powders and granular substances. SPECIAL DESIGNS Several sleeve design options such as a conical sleeve for control valves and a suction sleeve for negative pressure applications are available. Suction sleeve • Specially designed for negative pressure applications e.g. suction lines and for applications where sleeve pulsation occurs Sensomate sleeve • Detects and signals critical wear Flexible Self-cleaning Multilayer construction Full bore 100% tight Only the sleeve is in contact with the medium ● Numerous elastomer compounds ● Special sleeve designs Polyurethane (PU) lined sleeve • Sleeve with polyurethane lining PROCESS BENEFITS Conical sleeve • Ensure the most accurate control ensure improved protection against wear in flow control applications Exellent wear resistance High corrosion resistance No turbulence No jamming or clo

STANDARD SLEEVE MATERIALS FOR FLOWROX VALVES Rubber quality Application examples Temperature range Typical media SBRT Heavy wearing Styrene Butadiene, High cycle frequency Flowrox Blend Abrasive materials, diluted acid, alkali and chemical applications EPDM Chemical applications Ethylene Propylene • Applicable to 75% of all industrial chemical applications Concentrated and oxidizing chemicals OTHER SLEEVE MATERIAL OPTIONS Rubber quality Application examples Applications involving oils, fats and hydrocarbon High wear applications HNBR Hydrogenated Nitrile High temperature applications...