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12-inch ductile iron wafer butterfly valve with aluminum bronze disc and gear operator

Legend Valve

Legend Valve 116-469 12" T-337AB-G Butterfly Valve Buna

SKU CH-TK8V-Z87H6

A 12-inch ductile iron wafer butterfly valve with an aluminium bronze disc, gear operated and Buna seated

  • 12-inch ductile iron body handles high-pressure flow
  • Aluminum bronze disc resists corrosion in demanding fluids
  • Buna seat provides reliable sealing across temperature ranges
  • Gear operator enables precise flow control with less effort
  • California Proposition 65 warning lists cancer and reproductive risks

12 Inch Ductile Iron Butterfly Valve

This 12 inch ductile iron wafer butterfly valve is built for flow control in industrial piping systems. Its aluminum bronze disc and Buna seat handle water and compatible fluids in commercial and municipal installations. The gear operator allows manual throttling or shut-off without powered actuation. Buyers who need automated actuation or a different seat material will need another model.

Gear Operated Manual Control

The gear operator provides mechanical advantage for opening and closing the valve under normal line pressure. Handwheel operation produces minimal noise and requires no external power source. The ductile iron body and aluminum bronze disc resist wear during routine cycling. California Proposition 65 warnings apply because the product contains chemicals known to cause cancer and reproductive harm.

Wafer Pattern Fits Between Flanges

The wafer body slides between companion flanges and is secured by the surrounding bolt set, freeing space compared with lug or flanged designs. Gear operator clearance must be checked against adjacent pipework or insulation. The Buna seat suits standard water service but is not rated for oils, fuels or high-temperature steam. Installers must supply matching flange gaskets and bolts.

Highlights

  • 12-inch ductile iron body handles high-pressure flow
  • Aluminum bronze disc resists corrosion in demanding fluids
  • Buna seat provides reliable sealing across temperature ranges
  • Gear operator enables precise flow control with less effort
  • California Proposition 65 warning lists cancer and reproductive risks

Specifications

BrandLEGEND VALVE

Questions about this item

How is the 12" T-337AB-G butterfly valve installed, and what step do people get wrong?

The 12" wafer body fits between flanges using long bolts through the lug holes; the step people get wrong is tightening bolts unevenly, which distorts the Buna seat and causes leaks.

What maintenance or replacement will the 12" T-337AB-G butterfly valve need later?

The Buna seat and aluminum bronze disc wear over time; plan to replace the seat when sealing performance drops and inspect the disc for erosion during scheduled shutdowns.

What limit shows up first on the 12" T-337AB-G butterfly valve under sustained use?

The Buna seat reaches its temperature and chemical resistance limit first, leading to hardening or swelling that prevents full shut-off before the ductile iron body or gear operator fails.

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