High Performance Teflon Lined Flange End Ball Valve For Chemicals

High Performance Teflon Lined Flange End Ball Valve For Chemicals

Lined Ball Valve

TEKO Teflon lined ball valves have straight-through flow providing positive shutoff with minimal pressure drop and flow turbulence. With the ball independent of the stem, the ball has some freedom to move along the axis of the valve in the closed position, while having no freedom to rotate against the stem. When line pressure is applied to the closed ball, it moves slightly downstream to maintain contact with the downstream seat where primary sealing occurs.

Lined ball valves can generally be installed without regard for flow direction, and are ideally suited for automation as they feature an ISO mounting pad. TEKO’s standard fully PFA lined ball valve utilizes a carbon steel body housing with Carbon steel/stainless steel ball and stem cores.

Low Emission packing design

• High efficient low-friction low emission sealing packing.
• Live loaded pressure energized V-shaped packing for superior performance in all applications including vacuum services.
• PTFE packing is compatible with most chemical applications.

Metal to metal body joint design

• For strengthened boy structure against externally induced forces
• Encapsulated PFA joint prevents cold flow for optimum sealing: no need to adjust body bolts in thermal cycling applications.

Design

• Valve Design: ASME B16.42
• Flanges: ASME B16.5 or B16.42
• Face to Face: ASME B16.10
• Pressure Testing: API 598 (Seat & Shell)

Availability
 

• ASME Class 150
• Size Range: 1/2” to 6”
• Temperatures: -20°F to 320°F (-29°C to 160°C)
• Pressures: Vacuum to 250 psig

Applications