GDC-5 electromagnetic high vacuum flapper valve GDC-5 electromagnetic high vacuum flapper valve is connected to the vacuum pipeline to turn on or off the vacuum system airflow, or for a pneumatic valve. When power is P, A, pipes turned on when power is cut off P, A, pipes, maintaining the vacuum degree P end of the vacuum system. Applicable medium can be pure air and non-corrosive gases. The main technical performance nominal diameter: Nominal Diameter 5mm Scope: Applicability 105 ~ 1.3 × 10-4Pa valve leak rate: Valve Leak Rate ≤1.3 × 10-4Pa.L / S Temperature:. Applicable Temperature -30 ~ + 50 ℃ line around the rise: Coil Temperature Rise ≤65 ℃ Power supply voltage: Mains Voltage 220V / 50Hz Mounting direction: Mounting Direction vertical or horizontal external and connecting dimensions (mm)