Ball Valves Media: Water, Oil & Gas Material: Stainless Steel Connection Form: Thread Driving Mode: Manual/Pneumatic & Electric Nominal Pressure: 1000psi Channel: Tee Type Three Way Ball Valves have 3 ports. We always call them " T"-port 3 way Ball Valve and "L"-Port 3 Way Ball Valves. The main difference is the ball inside the valve bodies.L port 3 Way Ball Valve's Ball with 2 Holes, T...