Durco® TX3 Triple-Offset Butterfly Valve
The Durco® TX3 triple-offset butterfly valve delivers bi-directional, bubble-tight shutoff with low operating torque. Its precision-machined offset geometry minimizes seat and seal contact during cycling, helping reduce wear, extend service life and support reliable performance in demanding liquid and gas applications.
... Read more Read less Test Standard
API 598
Design Standard
API 609
Fugitive Emissions
ISO 15848
- Laminated graphite or metal-to-metal sealing supports API 598 zero-leakage shutoff
- Triple-offset geometry limits sealing-surface contact to reduce wear during cycling
- Anti-blowout shaft design meets API 609 requirements for enhanced safety
- Low operating torque enables compact, cost-effective actuation
- Packing options support ISO 15848-1 fugitive emissions requirements
- ASME B16.34 - Valves--Flanged, Threaded, and Welding End
- API 609 - Butterfly Valves: Double-Flanged, Lug-and-Wafer Type
- ISO 15848-1 - External leakage of valve stems
- API 607 - Fire Test for Quarter-Turn Valves
- ISO 10497 - Testing of valves -- Fire type-testing requirements
Size Range: NPS 3 to 60
Pressure Class Range: ANSI Class 150, 300, 600, 900, 1500
Seating Material: Laminated graphite/metal seat ring, solid metal seat.
Documents & Support
