Materials:
Body - Ductile Iron(DI) .
Disc - AL-Bronze.
Stem - Stainless steel 410.
Seat - EPDM lined. 
Seals - Valve body and stem isolated from fluids by O-rings and elastomer seat.
Operators - Lever, gear. electric, hydraulic, pneumatic.
Main features:
Full Lug Style Butterfly Valves are used in HVAC, irrigation, OEM, commercial, and institutional applications and wherever positive shutoff is required to control the flow of liquids, gases, and slurries. It features cast iron body construction, stainless steel shaft, mounting pad for 10 position lever, gear operator or actuator. Pressure Rating: 200psi WOG and is available with ductile iron, aluminum bronze, or stainless steel discs and EPDM, Buna, or Viton seats.