Big or small, we test them all! We will recertify most types of high pressure cylinders and vessels . We do high pressure hydro testing on most common types of high pressure cylinders. Our equipment can test pressures up to 10,000 psi. Orion Safety Equipment is a Transport Canada approved testing facility. We can also refill your high pressure vessels with breathing air, oxygen or nitrogen. Please phone us if you have any questions about this service.