Two                             self lubricated Phosphor Bronze bearing fitted at the                             top & bottom of the body with s.s.ground shaft therein                             ensures permanent lubrication preventing valve jamming                             & low operating torque. Disc connected to the shaft                             through the conical pin prevents any back lash in the                             disc & driving shaft. Polyacetal Bush giving additional                             support with two in built "O" rings fitted                             at the top & bottom of body acts as secondary sealing                             & bearing. Notch disc at the top is provided with                             the hand lever for flow regulation.  |