500 Series

Company Name : Circle Seal

Body Materials

  • Aluminum
  • Brass
  • 303 or 316 Stainless Steel

Steel Port Sizes

  • 1/8″ to 1-1/4″

Operating Range

  • Vacuum to 200 PSIG [14 bar]

Cracking Pressure

  • 0.5 to 150 PSI

Technical Information


  • Popoff & Inline


  • Male Pipe Thread
  • Male/Female Pipe Thread
  • Male/Female British Pipe Thread
  • Male British Taper Pipe Thread

Seat Materials

  • Buna N
  • Ethylene propylene
  • Neoprene
  • PTFE
  • Viton®

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