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664, 666 & 668 (F) Single Actuator Flanged Chamber Mounted Switch

664, 666 & 668 (F)  Single Actuator Flanged Chamber Mounted Switch
  • Factory Calibrated to each applications specific gravity

  • Hydrostatically tested at 1.5 times the maximum design pressure

  • Available in CS, 304SS, 316SS

  • CSA and UL Approved


Models 664F, 666F and 668F are single actuated flanged chamber mounted switches. Each control is available with a wide variety of switches.

Switching differentials for standard specific gravity settings are shown in Table A on reverse side. Maximum specific gravity for these controls is 1.7.

The lower switching point of the actuator is 5-1/4" below the centerline of the horizontal connection of the chamber.

These models are available in various pressure ranges shown in Table A. The desired pressure rating control is included in the model number.

These models have a single actuator and are available with graphite displacers.

Pressure and temperature rating for these controls is 1000 lbs. at 500° F. Special materials of construction are available upon request.

This series may be used for interface applications on special order. Consult factory and specify gravity of both liquids.