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Home / / products / Jamesbury™ Wafer-Sphere™ High performance butterfly valve, series 800

Jamesbury™ Wafer-Sphere™ High performance butterfly valve, series 800

About Jamesbury™ Wafer-Sphere™ High performance butterfly valve, series 800

Jamesbury Wafer-Sphere high-performance butterfly valves combine unique off-center disc, proprietary seat design and Xtreme™ sealing technology. Tight, long-lasting sealing, and yet light and low-cost design makes it a good alternative to gate valves and other heavier rotary-type designs.

Technical Specifications
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Data sheet 800 series
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Data sheet Cryogenic series
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Description

Jamesbury™ Wafer-Sphere™ high-performance butterfly valves combine unique off-center disc, proprietary seat design, and Xtreme™ sealing technology. Tight, long-lasting sealing, and yet light and low-cost design makes it a good alternative to gate valves and other heavier rotary-type designs.

Jamesbury™ Wafer-Sphere™ high-performance butterfly valves are available in wafer and single-flanged lugged designs for dead-end service for ANSI class 150, 300, and 600 pressure class applications. The Wafer-Sphere™ high-performance butterfly valve is available in a range of materials and seat combinations suitable for service in a wide variety of applications including NACE MR0103, and abrasive services. Valves specifically prepared for chlorine, oxygen, high vacuum, and high cycle applications are also available.


Specifications
Series
800 series (Model D)
800 series
Size range
3″ – 12″ (excluding 5″)
2 ½” – 60”
Design
Wafer, lug and double flanged
Wafer or lug
Maximum temperature
+260 °C / +500 °F
+260 °C / +500 °F
Pressure rating
ASME Class 150 – 300/ PN 10 – 40
ASME Class 150, 300 & 600
Materials
Carbon steel, Stainless steel, Monel
Carbon steel, Stainless steel, Monel, Hastelloy C
Features
  • • Driveshaft with trunnion (Model D only) or through shaft
  • • High flow capacity design (Model D)
  • • Flexible lip seat technology
  • • Low emissions stem seal technology
  • • Fire-tested & cryogenic designs
  • • High cycle options
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