Pressure Sensors

The bottom half of the Module Seal consists of a 1/2 thick rubber membrane at the top of the mounting post. This provides a hermetic seal for the Isolator Ring keeping the instrument oil in and the air out. The top half of the Module Seal is the "Stinger Fitting" a brass or stainless steel fitting with a needle projecting out of the bottom. Replacing the gauge without compromising the integrity of the vacuum fill and without removing the Isolator ring from the process pipe - is simple:

  1. Close the Block Valve.
  2. Unscrew the Lock Ring.
  3. Pull the gauge and stinger fitting out as a complete unit.
  4. Plug the new gauge and stinger assembly into the Module Seal.
  5. Re-tighten the Lock Ring.
  6. Open the Block Valve.

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