Sure Seal’s O-Seal is standard in all Series 500-522, 890- 893, 899-892 Valves Sure O-Seal’s Patented O-Seal is machined directly into the housing on the upper body on all valves. Our 2” & 3” valves are machined in the lower body where no bushing is required. While on 4” and larger valves, the O-Seal is in the lower bushing.
• Stem - Machined from 17-4 Stainless Steel to eliminate twisting of stem. Gives direct disc control of full or partial product flow.
• Top Plate - Machined to standardized drilling pattern allowing manual handle kits, and actuation, interchangeability also available in ISO patterns.