Features:<ul>
Temperature of media
Using three-eccentric structure and adapting various rigidity stainless steel as seal surface of seat and disc
It has super corrosion stability, bidirectional seal function and long service life time
Applied to metallurgy, electric power, petrochemical, water supply and drainage and city planning pipeline which medium temperature does not exceed 425°C</ul>
Material of main parts:<ul>
Body: carbon steel, stainless steel, chrome-alumina steel
Disc: carbon steel, alloy steel and stainless steel
Seat: stainless steel and co-base hard alloy
Bush: stainless steel
Stem: stainless steel or special material</ul>
Specifications:<ul>
Nominal diameter (DN): (100 to 1200mm), 4 to 48 inches
Nominal pressure (PN) (MPa): strength testing (1.5 x PN) seal testing (1.1 x PN)
Port size: DN40 to 1200mm
Pressure: PN1.0 to 4.0MPa
Power: manual
Applicable temperature:<ul>
Carbon steel: -29 to 425°C
Stainless steel: -40 to 650°C</ul>
Applicable medium: water, steam, hot water, oil
Drive manner: worm gear transmission, electric operated, pneumatic, hydraulic
Pressure grade: ANSI 150lbs pound class/PN25
Material: carbon steel and stainless steel
Standard or nonstandard: standard
Structure:
butterfly
Welding standard: GB12224, ANSI B16/25 and DIN 2559</ul>
Packing:<ul>
Plywood as export standard or customized
Flexible graphite</ul>