Chemical & industrial engineers designs and provides manufactures and offers a wide range of breather valves. Some general specifications of these valves include: during vacuum these valves breathe air or gas inside the vessel and protect the external pressure. Sizes range from 1/2" to 14" in flanged connection. Materials of construction are ci, cs, ss, ss-304/316, alloy-20 and other materials as per customer`s requirements.These breather valves find their applications for use in various chemical and process industries for all sorts of applications in design to prevent vapour losses by evaporation in storage containing volatile liquids and to safeguard the vessel in vacuum, and pressure conditions. Some general specifications of these valves include: dduring vacuum these valves breathe air or gas inside the vessel and protect the external pressure. Sizes range from 1/2" to 14" in flanged connection. Materials of construction are ci, cs, ss, ss-304/316, alloy-20 and other materials as per customer`s requirements.