Machine tools centre, kolkata, manufactures stainless steel diaphragm sealed gauges [also known as chemical seal gauges]. These are available with the capacity ranging from 0 to 1, 1.6, 2, 2.5, 4, 6, 7, 10, 14, 16, 21, 25, 40, 60, 100, 160, 250 kg/cm² and vacuum from 0 to 760 mmhg. The pressure gauge, diaphragm materials, top/bottom chambers and the internals are all made from stainless steel. A corrugated diaphragm is used to achieve flexibility and linearity and it has a sufficient stroke feature to provide adequate displacement of the sensing element. The diaphragm of a diaphragm sealed gauge is in contact with teflon for protection. Shatterproof glass, electric contact, booster relay, max pointer and glycerine filling can also be provided to diaphragm sealed gauges .
