Ntgd valve is Specialist Trunnion ball valve producer, For those who have any doubts, Don’t be reluctant to Get in touch with us. อุปกรณ์นิวเมติกส์อื่น ๆ ชิ้นส่วนสุญญากาศ To control the pneumatic actuator for ball valves, the compressed air is controlled by solenoid valves. Electrical signals with the controller energize the solenoid https://benitoa898zhj4.wikistatement.com/user