截止阀的启闭件是塞形的阀瓣,密封面呈平面或锥面,阀瓣沿流体的中心线作直线运动。阀杆的运动形式,有升降杆式(阀杆升降,手轮不升降),也有升降旋转杆式(手轮与阀杆一起旋转升降,螺母设在阀体上)。截止阀只适用于全开和全关,不允许作调节和节流。
保温截止阀具有保温,保冷特性,适用于石油,化工,冶金,制药等行业.
产品型号 |
阀体、阀盖 |
阀 瓣 |
填 料 |
bj45w-25p、bj45w-40p、bj45w-64p |
zg1cr18ni9ti |
1cr18ni9ti |
ptfe |
聚四乙稀 |
bj45w-25p/r、bj45w-40p、bj45w-64p |
zg1cr18ni12mo2ti |
1cr18ni12mo2ti |
ptfe |
聚四乙稀 |
型号 |
公称压力pn(mpa) |
试验压力 |
适用温度 |
适用介质 |
保温套压力 |
shell |
seal |
bj45w-25p |
2.5 |
3.75 |
2.75 |
≤200 |
acetic urea
1 |
≤1.3 |
bj45w-40p |
4.0 |
6.0 |
4.4 |
bj45w-64p |
6.4 |
9.0 |
6.6 |
acetic urea |
bj45w-25p |
2.5 |
3.75 |
2.75 |
bj45w-40p |
4.0 |
6.0 |
4.4 |
bj45w-64p |
6.4 |
9.0 |
6.6 |