งานบริการเครื่องทดสอบประสิทธิภาพอุปกรณ์ไฮดรอลิก A butterfly valve operates by rotating the handwheel coupled for the rotary actuator. In several industrial functions, the handwheel can be replaced by amongst 3 usual ability resources which can run rotary actuators. If common cylinder assembly is unworkable on account of movement, weight, or Room requirements, a rotary https://pakoengineering.com/หัวขับไฟฟ้า-electric-actuator-control-valve/