Inclined Single Limb : HP tapping connected to well, It pushes manometer fluid into capillary which is either kept open or connected to LP tapping. defference in pressure is directly read over engraved acrylic scale. U-Tube Dual Limb : HP Tapping is connected to LH Limb. RH Limb is kept open or connected to LP tapping. Difference in level of two limbs shows differencial pressure over engraved acrylic scale.
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Nariman Point, Mumbai, Maharashtra