Stainless 3-way L-Port Ball Valves

Stainless steel ball valves utilize a machined or soldered spherical ball to block or enable fluid flow. The ball is connected to a stem which in turn is connected to either a handle (for manual use) or a motor for automated use. Turning the stem rotates the ball and either exposes the bore to the fluid path or blocks it.
With their superior corrosion resistance and sturdy construction stainless steel ball valves are commonly used for high pressure saline or corrosive media applications. Industrial grade valves are usually rated to 1000 psi or higher.
Stainless steel ball valves are either a “trunnion pin” or “floating ball” design. In a trunnion pin design, the ball is held in place by a pin at the base of the valve body. This design is more common for larger valves (greater than 6” in diameter). In a floating pin design, as the name implies, the ball “floats” atop of and is held in place by the valve seats.
Some features that differentiate higher quality valves include being cast from a higher grade of stainless (316 vs 304), a stainless steel ball (316 vs other alloys), a solid vs plated steel ball, and high quality sealing materials. Sealing materials can vary by application but reinforced Teflon (RTFE) is commonly used as it provides excellent sealing performance for a wide range of applications and is chemically inert.
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