波纹管密封阀的潜在故障和故障排除

故障Fault  

可能的原因Possible reason

补救措施Remedy

无介质流动

No flow  

阀门关闭Valve closed  

开启阀门Open the valve

未拆下法兰防尘盖

Flange dust caps were not removed  

取下法兰上的防尘盖

Remove dust caps on the flanges

介质流动不良

Poor flow

阀门开度不够

Valve is not open enough  

全开阀门

Open the valve

阀前过滤器很脏Dirty filter  

清洁或更换滤网

Clean or replace the screen

管道堵塞Clogged pipeline  

检查管道Check the pipeline

控制困难

Control difficulties

阀杆转不动Dry stem

油嘴处加润滑油Grease the stem

压盖填料过紧

Gland packing tighten too much  

稍微松开压盖螺母，注意保持填料函密封性

Slightly slacken gland nuts. Put attention to

keep stuffing box tightness

阀杆泄露

Stem leakage  

波纹管破裂

Bellow damage  

拧紧压盖直到不泄露，尽快更换阀门

Tighten the gland until tightness will be

reached. Replace the valve assoon as possible.

阀座泄露

Seat leakage  

关阀操作不当

Shut off not correct  

不借助工具手动关阀

Tighten the handwheels without any

auxiliary tools

阀座或阀瓣损坏

Seat or disc damage  

更换阀门，联系供应商

Replace the valve and contact supplier or

manufacturer

压力差太大

Pressure difference too much  

应更换为平衡阀瓣，或检查阀门的安装方向

Apply valve with balancing disc. Check if

the valve was assembled according to

arrow direction marked on the valve.

介质被固体颗粒污染

Medium polluted with solid particles  

清洁阀门，在阀前安装过滤器滤

Clean the valve. Fit strainer before the

valve.

连接法兰损坏

Broken connecting flange

螺栓拧紧不均匀

Bolts tighten unevenly

更换新的阀门

Replace the valve with new one