Worcester® Cryogenic Three-Piece and Flanged Floating Ball Valve
Worcester® cryogenic three-piece and flanged floating ball valves provide reliable isolation in critical low-temperature service. A welded on bonnet, live-loaded PTFE packing and robust stem design support emissions performance, maintainability and service life while addressing key cryogenic and fire-safe requirements.
... Read more Read less- Certified designs address current fire-safe and fugitive emissions requirements
- High-strength stem supports reliability, service life and API 608 compliance
- Live-loaded sealing maintains positive packing load for leakage control
- Welded on bonnet design provides connection to body strength, and avoids creating a new path for leakage
Standards and certifications:
- ASME B16.34, BS 6364, MSS SP-134, ISO-28921, API 608, ISO 17292, ASME B16.10, ASME B16.5
- Fire-safe certified to API 607 and ISO 10497
- Fugitive emissions certified to ISO 15848 and API 641
- PED and SIL 3 capable
- TSG
- CRN
Pressure Class Range: ASME Class 150 to Class 300 flanged; Class 600 three-piece
Temperature Range: -253°C to 260°C (-425°F to 500°F)
Size Range: DN15 to DN200 (½ to 8 in.) flanged; DN15 to DN50 (½ to 2 in.) three-piece
Materials: Stainless steel, brass (three-piece); other alloys on request
- Worcester three-piece (Series CF44)
- Worcester flanged (Series CF51/52)





















