External exhaust valve, G3-M, is used to prevent the leak tester from being contaminated by externally discharging the filthy air contains water and oil from tested parts. The exhaust valve is installed between the tested part and the master and the leak tester to effect external exhaust. G3-M is controlled by the leak tester.
Feature of the built-in Air-operated valve:
• Highly durable: Special structure called Guard type, which functions stably over long period of time even if contaminated air goes through.
• Internal deformation and thermal effects are minimized, which is most suitable for air leak test.