1.Flow curve tendina to straightline.excellent regulation performance
2.Wide selection of materials applicable for various mdei

Body:

Cast Lron , Ductile Lron,Aluminum Bronzd, Stainless Steel,CF8M Stainless Steel,Carbon Steel

Disc:

Plated Ductile Iron, Aluminum Bronze ,Stainless Steel , Titanium Steel , CF8M Stainless Steel,

Carton Steel

Stem:

Stainless Steel ,Carbon Steel.

Bushing:

Lubrized Bronze, PTFE

Seat:

NR, Hypalon, EPDM, Neoprene,NBR, Wear-Resistant Rubber, VITON,Hear-Resistant Rubber,PTFE