The vent valve design has been upgraded on the T-900 Series and the Vernier function now operates differently from the previous generation. The new vent design has a reverse thread to allow for proper Vernier operation and also for operation of the vent which is now an o-ring seal and not a metal seat seal. If the valves are not properly used, one will be opened when the other is tightened and the pressure will be relieved.
0-30 PSI
Precision Vernier built into the handle for fine adjustment
Controlled bleed valve for precise pressure reduction and hysteresis tests