Working Principle: Mechanical valves control the direction through external mechanical force. When the external mechanical force disappears, the valve automatically resets and changes direction. Good Airtightness: Precision manufacturing, good airtightness, stable and performance. Good Performance: Aluminum alloy valve body, wearable and pressure resistant, lasting to use. Easy to Install: Compact and lightweight structure, easy to install and use. Application: Applicable for mechanical equipment, textile equipment, medical device, food processing, etc., Weight: 0.1543235834 pounds, Manufacturer: Garosa