A21010-203

Vacuum Tank - Pressure Relief Valve Test

Usage

The Boeing A21010-203 Vacuum Tank - Pressure Relief Valve Test simulates cabin-to-ambient differential pressures in a ground test to ensure the positive pressure relief valve functioning correctly in flight. The A21010-203 vacuum tanks are operated on a clean dry, 60 to 105 psi air source.

Aircraft Application

• 727 All
• 737 All
• 747 All
• 757 All
• 767 All
• 777 All
• 787 All