size:DN50-DN300

end flange:ANSI C606

top flange:ISO 5211

Normal pressure:PN1.6MPa(175PSI)

 

body:ASTM A536 65-45-12

disc:ASTM A536 65-45-12+Rubber

upper stem:1Cr17Ni2 431

lower stem:1Cr17Ni2 431

Bushing:F4 PTFE

O-Ring:NBR

Cover:Q235-A Zn-Plated

Screw:Q235-A Zn-Plated