Description
PRINCIPLE
It is a screw type pump used to Measure Low Pressure or Vacuum. It has got two main parts
One Cylinder and A piston with Pushing Screw and Rotating Knob (4)
When we Rotate the Knob in the Clockwise Direction Pressure Increases and if was Rotate the
Knob in the Anti Clockwise Direction Minus Pressure / Vaccum Develops
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