F990两半式蝶阀

FAR1F990手动蝶阀泰科TYCO阀门KEYSTONE涡轮蝶阀
*Keystone标准顶法兰*关闭严密*阀杆两级密封*寿命长*连接方式：对夹,支耳

FAR1F990手动蝶阀泰科TYCO阀门KEYSTONE涡轮蝶阀

特点及优点

*Keystone标准顶法兰

*关闭严密

*阀杆两级密封

*寿命长

*连接方式：对夹,支耳

 

 

标准规范

尺寸（mm）:DN25~DN500

适用温度（摄氏度）：-40℃~150℃

*DA压力（MPa）:1.0

阀体材质：铸铁,球墨铸铁

阀板材质：不锈钢

阀杆材质：不锈钢

阀座材质：乙丙橡胶,丁晴橡胶,聚四氟包乙丙橡胶,聚四氟包丁晴橡胶,丁纳橡胶Buna N

 

应　用

适用化学水处理化工,食品,泥浆,造纸,气力输送,一般工业

适用介质：油,气,水,腐蚀性介质。

Features

• Factory testing of every valve at full rating
ensures 100% bubble-tight shut-off.
• Standardized actuator flange for easy
operator interchangeability and mount
direct to Keystone Range of actuators.
• One-piece wafer-thin disc-stem provides
high strength and absolutely positive disc
control and gives the very minimum
obstruction to flow. Its crevice free surface
makes it ideal for hygienic duty.
• Primary seal formed by the seat/shaft/hub
contact exceeds the pressure rating of the
valve. Body is totally isolated from the
flowing medium.
• Secondary shaft seal is suitable for
pressure and vacuum is self adjusting.
• Patented dove-tail seat requires no
bonding. Makes seat replacement simple
and fast. Extra heavy edge section resists
tearing.
• Hub seal is provided by preloaded contact
between flatted seat surface and rounded
polished disc-hub area for positive sealing
at all disc positions.
• Molded-in O-ring provides positive flange
sealing and eliminates the need for
gaskets.
• Heavy duty top bushing absorbs side
thrust loads. Self-adjusting sealing for both

directions is also suitable for vacuum.