
A pressure test is the common way in which leaks can be found in pressure vessels. Pressure test helps maintain safety standards and durability of a vessel over time. Newly manufactured pieces are initially qualified using pressure test and (once in-service) re-qualified at regular intervals using proof pressure test.
Premier Precision Group's - Special Processing is capable of performing pressure testing per customers’ blueprint requirements up to pressures of 300 PSIG using compressed gases. Lower pressures are achieved using filtered air in water-filled tanks.

| Machining | Fabrication | Special Processing | |
|---|---|---|---|
| Precision Milling | Sheet Metal | Laser Cutting | Non-Destructive Testing |
| Precision Turning | Tube Fabrication | Forming | Assembly |
| Swiss Turning | Nadcap Welding | Punching | |
| Centerless Grinding | |||


| Aerospace | Defense | Electro-Optics |
|---|---|---|
| Military Aircraft | Weapons Systems | Electro-Optics |
| Commercial Aircraft | Land Based Defense |