This standard specifies the classification, structure, requirements, test methods and acceptance rules, marking, packaging, transportation and storage of energy-saving dragging devices for pumping units. This standard applies to the design, manufacture and acceptance of pumping unit energy-saving drag devices (hereinafter referred to as "drag devices") for beam pumping units.
SY/T 5226-2014 history
2020SY/T 5226-2020 Energy-saving drag device for pumping units of oil and gas drilling equipment