The valves operate in low-temperature cryogenic conditions and to 1,000°F. They feature a patented seat made from self-lubricated, full-contact sintered stainless steel that contains TFE or graphite. This provides positive shutoff and eliminates galling when paired with the hard-coated, super-round ball.

Flowserve Corp., 5215 N. O'Connor Blvd., Suite 2300, Irving, TX 75039, (972) 443-6500,