Metal seal type
• Have durability and long life.
• Have a small amount of air leakage due to the air gap clearance between sliding parts.
• Micro particles of foreign materials may tend to adhere. High filtration mist separator is required.
• Fast response time.Suitable for continuous duty cycle.
Rubber seal type
• Low air leakage
• Seal material may be affected by certain oils or the content of exhaust air.
• Less responsive than metal seal type.
• Suitable for intermittent duty cycle.