Home > News > Industry news > Adqvalve’s tips for butterfly valve maintenance
company news
Exhibition news
Industry news
Contact Us
Cowinns Industry Equipment Co.,Ltd
No.127 Room No.748 Changjiang Road,High-Tech District,
Suzhou City, Jiangsu Province, zip:215128 China
Tel:+86 512 6878 1993 
Fax:+86 512 6818 4193
Mob&what's app:+86 153 0620 9257 
Contact Now

Introduction to PID Diagram Knowledge of Valve Industry

Introductionto PID Diagram Knowledgeof Valve Industry PID diagram is thetechnical core of factory production. Whether it is an engineer from a designi...

The difference between DBB, DIB-1, DIB-2

Two types of seat sealing structures commonto trunnion mounted ball valves. 1. Double block and bleed valve A valve with two valve seat sealing pairsc...

True Meaning of Double Block and Bleed

It’s time to do maintenance ona section of process. You don't want to shut down the entire facility, so youdecide to block off and depressurize just ...

The instruction of pneumatic actuators

First.Overview of pneumatic actuators Pneumaticactuators are actuators that use air pressure to drive opening and closing or controlvalve valves. They...

Check valve the most important valve in the process system

Checkvalve: the most important valve in the process system Mainfunctions and functions of check valve: Theyonly allow fluid to flow in one direction. ...

18''RF WCB Butterfly valve

Customized top connection dimensions 18'' RF WCB butterfly valve  supplied to power plant service for high temperature steam pipeline 

Equinor’s ambition in floating offshore wind

Equinor is planning to merge offshore wind and fossil energy exploitation with the Hywind Tampen project. The Norwegian company wants to further devel...

Gaskets Are Not Created Equal

Gaskets are near the bottom of the food chain of valve components; trim, body materials and packing seem to get a lot more press. But gaskets serve an...

China (Shanghai) International Fluid Machinery Exhibition (2)

China (Shanghai)International Fluid Machinery Exhibition (2) The China(Shanghai) International Fluid Machinery Exhibition is one of the mostsignifican...

Briefly describe the relationship between valve diameter and medium flow rate

Briefly describethe relationship between valve diameter and medium flow rate The flow rateand flow rate of the valve mainly depend on the diameter of ...


Adqvalve’s tips for butterfly valve maintenance

http://www.valve-world.net/ http://www.valve-world.net/ 2018-08-20 11:44:54
Triple eccentric butterfly valves belong to a special class of butterfly valves because these valves are designed to work at high temperature. For a long-term, quality performance, these valves demand a timely preventive maintenance. Adqvalve discusses the various factors to be considered during the preventive maintenance.

Firstly, it is important to regularly check whether air leakage occurs in the diaphragm. Also, it is ideal to check whether the output of the regulator is consistent with the valve position indicator. The debris in the air source pipeline should be cleaned. Next, the air source condition of the high-temperature control valve should be checked. If there is any problem, it must be solved immediately. Then the upper and lower cover flanges of the valve body should be inspected as well as the two two side pipe flanges should be checked for possible leakage. It is important to ensure that the packing is intact and not leaking. In addition to all these, a user should regularly check whether the opening degree of the valve is consistent with the output.

A pneumatic high-temperature control valve ledger should be established to record the results of each inspection and fault treatment, in orderto make it easier to analyze and deal with future fault causes.