High Quality Corrosion Resistant Butterfly Valve Series 890-893
Sure Seal’s standard is a 255 duplex stainless which is more corrosion resistant and almost twice as strong as all other butterfly valve manufacturers standard 316 stainless steel. This eliminates shaft twisting and water hammer damage which other butterfly valve manufacturers have to make their disc thicker to handle water hammer which also reduces the CV of their valve. With Sure Seal’s standard no other valve has higher Cv’s with this super thin disc design and the strength to handle the service.
• Top Plate - Machined to standardized drilling pattern allowing manual handle kits, and actuation, interchangeability also available in ISO patterns. • Stem Bushing - Composed of full strength, corrosion resistant ertalyte, stem bushings absorb operator side thrust. Top bushing comes standard in all valves, while bottom bushing comes with all valves sizes 4”-12”, to ensure trouble free valve operation.