Indonesia Tel: +62 21 2278 3377
New Zealand Tel: +64 (0)7 850 2610
South Africa Tel: +27 (0)10 900 2055
The Val-Matic QuadroSphere Ball Valve from HMA Flow & Industrial has over 20 years’ proven performance in numerous applications in the power, oil and gas, refinery, mining, steel, chemical, geothermal, and petrochemical industries. The QuadroSphere Ball is a unique contoured full port ball, adding four additional flow paths, namely over, under and around the sides for self-flushing the ball cavity.
Reduced ball-to-seat contact reduces wear by up to 70%. Minimal ball-to-seat contact when opening or closing lowers the running torque. Four recessed surfaces on the ball provide lipped edges for scraping the seats clean to avoid build-up of solids and scale. Multiple flow paths reduce cavitation and minimises velocity spikes, reducing wear and erosion.
Seat surfaces are out of the flow path, and fully protected from direct flow. A ground and polished hard chrome plated stainless steel ball provides low operating friction and abrasion resistance. Double O-ring stem seals are backed up by graphite packing compression rings as standard. In the event of any damage to the seat insert or stem seals, sealant can be injected to temporarily seal the valve until repairs can be carried out.