1. Use one-tube ball, tube Sphere surface is refined and chrome plated. This sphere surface will help reduce the deflection and vibration derived from the body of revolution.
2. Use carbon/ graphite sliding bearings to assume the function of supporting parallel and to ensure long-term stable operation of the ball operation.
3. Use heat-resistant stainless steel to make spring to ensure the sealing surface to fit closely at any time.
4. Simple outcome, small volume, light in weight, reliable performance, maintenance friendly.