Technical Information

Please consult your Circle Seal Controls distributor or our factory for information on special connections, operating pressures and temperature ranges.

• Body Materials

  • Aluminum
  • Brass
  • 303 or 316 Stainless Steel

• Port Sizes

  1/8″ to 1-1/4″

• Operating Ranges

  Vacuum to 200 PSIG [14 bar]

• Cracking Pressure

  0.5 to 150 PSI

• Configuration

  Popoff & Inline

• Connections

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

• Seat Materials

  • Buna N
  • Ethylene Propylene
  • Neoprene
  • Silicone
  • PTFE
  • Viton®