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CVU/CVH

CVU/CVH
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CVU/CVH AUTOMATIC PTFE PACKING RINGS Technical Specification Product Description Performance Capabilities John Crane CVU and CVH sets cover a wide range of fluids, including acids, caustics, and solvents at high temperatures and pressures. These automatic packings have superior sealing abilities, making them ideal for critical service applications. They require little or no gland adjustment and generate very low friction, heat, and wear, thus extending valve stem life and reducing repair or replacement costs. Made from high-purity PTFE, CVU and CVH sets contain no lubricants or dispersions, making them well suited for noncontaminating services. • Temperature: -85°C to 232°C/-120°F to 450°F • Pressure: CVU up to 10 bar/150 psi CVH up to 68 bar/1000 psi* • pH range: 0 to 14 *Metal-end adapters are recommended for pressures over 68 bar/1000 psi. • Chemical processing • Commercial • Food and beverage • Petrochemical processing • Pharmaceutical • Semiconductor/clean room Construction/Features CVU and CVH sets are available in virgin, carbon, or glass-filled PTFE, and are molded or machined to customer requirements. Sets consist of a male and female end adapter for stuffing box conformity and middle rings that provide positive sealing for valve stems and housings under system pressure. Optional metal-end adapters and spacers are available for extreme high pressures. Virgin PTFE sets meet FDA requirem

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CVU/CVH AUTOMATIC PTFE PACKING RINGS Technical Specification Standard Sizes CVU and CVH sets are applied in control valves, hydraulic cylinders, ball valves, and instrumentation valves where water, acids, caustics, solvents, oils, gases, and high-purity washes and rinses are used. They are an excellent choice for reciprocating equipment, including pumps, plungers, rods, and rams. Standard sizes range from 1/8" x 3/8" to 3" x 3-3/4". Additional sizes and metric sizes are available upon request. Note: Other PTFE products, including custom designs, are readily available.For additional...

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