These control valves have strict oil and degreasing requirements, as well as strict requirements on metal composition. These requirements are not limited to the valve body, but also include accessories, actuators and other metal parts included on the control valves.
There are also strict requirements for valve control. These control valves have an adjustment accuracy of 0.5% and can maintain good accuracy and leakage rate after long-term use.
For convenience in section testing and operation after installation, these control valves are equipped with handwheels for manual operation.