Flow indicator

Abtec’s HPB-70  “Sure Site” have no restriction of flow as with a Spinner. This flow indicator employs a constrained Teflon ball to permit an unmistakable indication that liquid in the system is in motion.  Indicators without the ball, if liquid is at equilibrium, often glass appears full and motion cannot be determined. Furthermore, colorless liquids are difficult to detect. This ball vibrates on the “cage” to show liquid flow activity while fluid is in  motion. This vibration is caused by the eccentric design of the indicator. When liquid is not in motion, ball is at rest also.

Abtec’s Sure Site flow indicators permit straight through flow. Sight glasses on both sides are sealed by two gaskets with flush type sealing rings.

Replacement parts

  • HPB-70 Inner Gasket
  • HPB-70 Outer Gasket
  • HPB-70 lens
  • HPB-70 Activity Ball
  • HPB-70 Activity Cage
Visual Flow - ABTEC Filters
Flow Indicator Material list - Abtec Filter
Flow Indicator Dimensions - Abtec Filters
Flow Drawing - Abtec Filters

Parts and Components

We stock a wide variety of parts and tools to facilitate quicker and easier filter changes. We can also get custom gaskets and o-rings.