BS EN 13942Petroleum and natural gas industries — Pipeline transportation systems — Pipeline valves (ISO 14313:2007 modified)
This International Standard specifies requirements and provides recommendations for the design, manufacturing, testing and documentation of ball, check, gate and plug valves for application in pipeline systems meeting the requirements of ISO 13623 for the petroleum and natural gas industries. This International Standard is not applicable to subsea pipeline valves, as they are covered by a separate International Standard (ISO 14723).
Section 7.13 Hand-wheels and wrenches — Levers ....The maximum force required at the hand-wheel or wrench to apply the breakaway torque or thrust shall not exceed 360 N (80 lbf)
Section B6: The maximum torque or thrust required to operate ball, gate or plug valves shall be measured at the pressure specified by the purchaser.The measured torque or thrust results shall be recorded and shall not exceed the manufacturer’s documented
breakaway torque/thrust.