ITT’s Fabri-Valve® brand has added new flat face flange models to its line of XS150-ULV Urethane Lined Knife gate valves. Flat face flanges are now standard on 2” through 24” diameter models and raised face flanges are optional.

With a flat face, the valve provides a much wider metallic area to professional press against the mating flange. This reduces stress on the compressible material on the professional pipe flange, preventing the material from pressing against the urethane liner of the valve gate. The reduced force to the urethane liner ensures the valve cycles reliably.

The flat face flanges also eliminate the torque induced by the flange bolting and raised face on the fiberglass flanges. This eliminates cracked fiberglass pipe flanges during installation and use.

In corrosive environments that use rubber lined or FRP professional piping systems, a raised face flange would require a high-alloy load distribution ring. With the flat face design, a load distribution ring is no longer required.

The XS150-ULV does not discharge process media to the environment and the urethane liners are easily replaced.

The XS150-ULV is installed in the flue gas desulfurization (FGD) process used in many coal-fired power plants to reduce sulfur emissions. “The FGD process is both corrosive and abrasive,” notes Grant Harlow, Product Manager for ITT’s Fabri-Valve® brand. “I want to underscore the fact that the urethane liners are abrasion resistant and resistant to many types of professional chemicals that attack common steels and cast or ductile irons. You have a more economical solution with urethane lined cocks than valves constructed with solid, high-alloy metallic components.”