T/JMTX 018-2021 Road transport of hazardous liquid cargo inspection and operation procedures for emergency shut-off valve of tank vehicles

Scope

Scope: This document specifies the terms and definitions, general principles, pre-inspection preparations, inspection content, and inspection conclusions for the inspection of emergency shut-off valves on tank vehicles used for the transport of liquid dangerous goods by road. Main technical content: 4. Basic requirements: The emergency shut-off valves installed on the tank body shall comply with the provisions of the corresponding national or industry standards, and their materials shall be compatible with the filling medium. The emergency shut-off valves shall not be used for other purposes, and the flanges for installing the emergency shut-off valves shall be directly welded to the tank body or head. The inspection cycle shall be combined with the use and maintenance of the tank truck, and the inspection shall be carried out at least once a year; the inspection cycle shall not exceed 12 months. 5. Pre-inspection preparations: Safety protection measures: The tank truck must be parked in a designated location and shut down for inspection. At the same time, effective measures shall be taken to prevent the vehicle and tank body from sliding or moving. The inspectors shall understand the characteristics of the medium transported in the tank body and make relevant preparations before the inspection. Cleaning and disinfection measures: The medium transported in the tank body shall be drained clean. The tank body shall be cleaned and meet the requirements of safety and environmental discharge. Sufficient water or other non-toxic and harmless media shall be loaded into the tank body for inspection. 6. Inspection content: - Visual inspection: Check whether the nameplate and valve body markings meet the requirements. - Check whether the valve body and structure of the emergency shut-off valve meet the requirements of relevant specifications. - Check whether the control air pipe (oil pipe) is intact and free from leaks. - Check whether the connection between the control so

Development Information

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