Double Offset Butterfly Valves

The Series D High Performance Double Offset Butterfly Valve is engineered for durability, consistent performance, and ease of automation, manufactured under international standards including API 609, EN 593, and MSS SP-68. Every valve is 100% pressure tested and fully serialized prior to shipment.

• Double eccentric disc design enhances sealing performance and reduces operating torque
• Cam-like disc motion minimizes seat-to-disc friction, extending sealing life
• Available in wafer, lug, or double flanged construction for Class 150 and Class 300 ratings
• One-piece stem design provides increased torsional strength for high-torque applications
• Fully field-replaceable seats reduce downtime and maintenance costs without modifying the retainer ring
• XCL-R composite sleeve bearings ensure low friction and extended cycle life
• Blow-out proof stem with snap ring retention system ensures pressure safety
• Live loaded packing system suitable for fugitive emission, high temperature, and fire safe services