Stem Balls

Overview

Usually The stem in a ball valve is not fastened to the ball. It normally has a rectangular portion at the ball end which fits into a slot cut into the ball. The enlargement permits rotation of the ball as the stem is turned.

Stem Ball is entirety cast as a whole, and then made through various processing procedures.

Sizes and shapes According to customer drawings.

Stem Valve Ball

Size:1/8″~4″
Product Feature:
Material: F304, F316, CF8M, CF8, 1.4301 1.4008,4A …etc. by Forging and centrifugal casting
Roundness ≤0.03mm
Surface roughness=0.4μm
Outside diameter. 1/8″-4″ +-0.03 mm (Outside diameter tolerance)
Inner diameter 1/8″-4″ 0~0.03mm (Inner diameter tolerance)

 

MaterialF304, F316, CF8M, CF8, 1.4301 1.4008,4A …etc. 
Dimension1/8″~4″
Processing of blankForging, centrifugal casting , coil welding
Sample making timeNormally 5days
Lead timeNormally within 30 days
PackageCartons if no special requests
Types of ballFloating ball , trunnion ball ,hollow ball, solid ball, Metal to Metal ball, T-port ball,V-port ball,Special ball,Blank ball
Surface treatmentPolishing, nickel plating (ENP), chromium plating (ECR), tungsten carbide (TCC), chromium carbide (CCC), NI60, NI55 and surfacing nickel-based materials

*Any other sizes available on request according to customer drawings!