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Memoryseal™ Cryogenic Split-Body Ball Valve3
https://www.afc-valve.com.tw/en/ Auto Flow Control Co., Ltd.
Home Products Velan Gate, globe, and check valves Quarter-turn Valves Memoryseal™ Cryogenic Split-Body Ball Valve
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Memoryseal™ Cryogenic Split-Body Ball Valve

Size range(s)
NPS 1/2 - 24
(DN 15 - 600)
Pressure rating
ASME Class 150 - 600
Standard connections
Flanged

Features and benefits

DESIGN FEATURES:
  • Meets ASME B16.5, ASME B16.34, API 608, API 598.
  • Face-to-face dimensions meet ASME B16.10 long pattern.
  • Gear actuator standard on NPS 8–24 (DN 200–600) SB-150/300 and NPS 6 –12 (DN 150–300) SB-600 valves.
  • Memoryseal seats compensate automatically for wear and fluctuations of pressure and temperature.
  • Long cycle life.
  • Low torques.
  • Blowout-proof stem.
  • Stem bearing reduces side thrust.
  • Multiple solid PTFE or chevron type stem seal (adjustable).
  • Pressurized thrust washer prevents galling and provides secondary stem seal.
  • Fully enclosed spiral wound graphite filled stainless body gasket.
  • Locking devices optional on NPS 1⁄2– 6 (DN 15–150) valves (SB-600 up to NPS 4 (DN 100).
  • Air vent on all balls.
  • Fire safe to API 607, BS 6755:
    • 1) Body gasket SS 316 and graphite (standard);
    • 2) Ball seats on body edge;
    • 3) Stem shoulder seats on body. 
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