T-Port Stem Ball is entirety casted in one piece and then made through various machining procedures and has the same characteristic with T-port valve ball to change the flow path.

With stem on valve ball is normally used for high pressure trunnion ball valves or cryogenic ball valves.

Product Feature


Bore Size : 1/2″ to 6″, DN10 to DN150

Roundness : 0.01 – 0.03mm

Surface Roughness : ≤0.4μm

ID Roughness : 0.4μm – 1.6μm

OD Tolerance : ±0.02mm to ±0.05mm depends on the size

ID Tolerance : ±0.02mm to ±0.05mm depends on the size

Material Type : Forging, Casting, Centrifugal Casting, Round Bar, Wax Lost Casting

Material : 304, 304L, 316, 316L, CF3, CF3M, CF8, CF8M, 1.4408, 1.4509, 1215, 2205, F51, CA15, CD3MN, CE3MN, 17-4PH, SCS13A, SCS14A, 1.4529, 316Ti, Alloy 20, Hastelloy C, etc.

Surface treatment : Mirror Polishing, HVOF Spray, Chromium Plating , Tungsten Carbide, Chromium Carbide, Nickel Plating (ENP), Nickel based valve ball, etc.