The study of effective parameters on differential pressure of diaphragm valve in valve actuators of pipeline by experiments

Mehdi Mahmoodi¹ Mofid Gorji²

1) Ph.D., Student, Faculty of Mechanical Engineering, Babol University of Science and Technology,
2) Professor, Faculty of Mechanical Engineering, Babol University of Science and Technology,

IOI Code : XYEH-BAKKC
Publication : The 2nd International Conference on Engineering Sciences and Technology(2icoesat.com)
Abstract :
    The effects of orifice diameter, pipeline initial pressure and pipeline break pressure drop rate on the differential pressure of diaphragm valve in a quarter turn actuator have been studied by experiments. The fluid in this experimental investigation was nitrogen. The reference tank is connected to the pipeline through a calibrated orifice with check valve. The tank pressure is higher than pipeline pressure when pressure reduction occurs by line breaking. If the pressure difference between tank and pipeline is higher than the sustainable pressure value of diaphragm valve, the valve will be closed by actuator.

Keywords : experiment break detection system valve actuator orifice diameter pressure drop rate