Availability and pressure-temperature ratings depend on size, material and configuration. Confirm the triple-offset geometry and seating arrangement for the selected BTT / TTM model.
Large-diameter butterfly valves for cooling-water piping. Select body and seat materials for water quality, operating temperature and required shutoff.
Isolation of circulating-water lines in power-generation facilities. Pipe diameter, flange interface and actuator requirements should be reviewed together.
Isolation service for large-bore utility and balance-of-plant systems, with manual, electric or pneumatic operation selected for the installation.
Steam and process isolation requires a configuration-specific review of pressure, temperature, seating and thermal cycling. Suitability is confirmed for the quoted valve.
The BTT / TTM product range covers DN80–DN2000 and pressure classes up to Class 900. These are platform ranges; they do not mean every size and material is available at every pressure rating.
For a triple-offset butterfly valve selection, specify the medium, operating and design pressures, minimum and maximum temperatures, pipe size, end connection and required leakage acceptance. Confirm disc geometry, seat construction, flow direction and actuator sizing against the selected model.
Project specifications may reference NB/T 47044, ASME B16.34 or API 609 Category B where applicable to the selected design. End dimensions and face-to-face requirements are reviewed against the specified ASME B16.5, B16.47 and B16.10 interfaces.
Shell and seat testing may follow API 598 or API 609 as agreed for the order. API 607 fire-safe qualification and GB/T 6899 anti-static requirements are included only when applicable and supported for the quoted configuration. Required drawings, material records and test reports should be defined in the project documentation scope.
Provide the service conditions and piping interface to establish the suitable valve configuration, actuation and inspection requirements.
Explore gate-valve isolation for main steam, feedwater and other high-pressure power-generation piping.
