Kaustubha Udyog offers Flameproof Hydraulic Pressure Switch from Range 3-350 Bar. Kaustubha Udyog is an ISO 9001: 2000 registered company that manufactures compact electrical switches such as industrial, pressure and vacuum switches. The Flameproof Hydraulic Pressure Switch from Range 3-350 Bar is designed for use in areas which are potentially explosive. These can be used by selecting an appropriate construction, for gas groups IIA, IIB and IIC. They can also be used in underground mines by selecting Grey CI flameproof heads.