We are offering gate valves bolted bonnet gate valve. through conduit gate valve. gate valves voltech gate valves are used in power industries (fossil fuel, combined cycle, cogeneration and district heating) and process industries ( oil, chemical, petrochemical, refining, pulp and paper) sectors. Voltech gate valves are designed to comply with all international standards like api 600, bs 1414 , asme b16.34.