630.941.7600 | [email protected] | valmatic.com 151 4/24 QuadroSphere® Ball The QuadroSphere® Ball is not a typical ball design. Surfaces of the full port ball that are non-essential to sealing have been recessed in all 4 quadrants. The surfaces of the ball that have been recessed create additional flow paths allowing the flow and particulates to move freely above, below and around the sides of the ball when moving from closed to open position. Seat ring contact to the ball has minimal contact area, which reduces wear and operating torques, due to less friction. The recessed surfaces on the ball also provide lipped edges that wipe the seat surfaces clean during opening and closing to avoid particulate buildup. The ball has two sets of seating surfaces to provide shut off in the fully closed position and protect the seats in the fully open position. Self-Cleaning Features Typical ball valves allow liquids and solids to be trapped within the body/ball cavity, resulting in solids accumulating around the ball that can cause clogging and/or damage to the seating surfaces. When the QuadroSphere® Ball cycles, its unique 4 recessed surfaces allow solids to be flushed from the body/ball cavity to prevent buildup of the solids around the back of the seat rings and bearings, Figure 1. Protected Seating Surfaces The QuadroSphere® Ball protects its seats from media velocity by minimizing contact of the upstream seating surfaces during cycles. When the QuadroSphere® Ball closes, the media applies pressure to the upstream seat ring pushing it against the ball’s upstream sealing surface for leak tight performance. Lower Torque Requirements The contour machining of the ball substantially reduces the ball to seat surface contact. This creates less resistance during cycles, lowering the torque to operate the QuadroSphere® Ball Valve. Anti-Blowout Stem The stem has an integral collar to prevent the stem from being ejected from the valve, while under line pressure per API 6D and ASME B16.34 standards. Stem Seals & Bearings The area around the stem seals and bearings is flushed clean each time the valve cycles from open to close. This helps to eliminate solids build up, that can damage the seals and bearings during operation, Figure 1. Body & Ball Construction The QuadroSphere® body and ball are forgings to provide superior surface finish and structural integrity. Forgings prevent defects, normally associated with castings such as pitting, sand inclusions, porosity and any need for weld repairs. 70% Less Wear Unlike typical ball valves the QuadroSphere® Ball maintains a fraction of the resistance across the seating surfaces when cycling, reducing wear up to 70% and improving the performance life of the ball and seats. As the ball cycles, 4 additional flow paths (over, under and around both sides) are created by the recessed surfaces, eliminating localized, high velocity impingement upon the downstream seat as with typical ball valves. Industry Compliance The QuadroSphere® Ball Valve has undergone tests to demonstrate its unique abrasion resistant ball design in severe applications. With over 20 years of proven performance, the QuadroSphere® Ball Valve solves the most difficult application problems in many industries. The QuadroSphere® Ball Valve is designed in accordance with API 6D and ASME B16.34 requirements. The valve carries the API 6D Monogram and has been certified to API 607, Fire Test standard. The QuadroSphere® meets standards: API, ASME/ANSI, BS, ISO, MSS and NACE. Typical Ball Valve allows debris and solids to accumulate. QuadroSphere® allows debris to be fushed from the valve body. Figure 1. Flow Pattern Comparison QuadroSphere® Ball Valves QuadroSphere® Ball Valves
