What Are The Most Commonly Used Valve In Chemical Industry
Chemical processing will have specific challenges in terms of equipment’s used in plant and they must be designed & manufactured to suit the process and from materials that will not harm the product and environment and to help the engineers to run the plant efficiency.
In every Chemical processing unit’s, valve will play a major role in Isolation& control of Fluids and Chemicals as required by the process parameters.
In the present day there are a variety of valves used i.e., Ball, Plug, Butterfly, Diaphragm ,Gate Globe Check & Knife Gate based on the basis of Application and process.
In common Ball Valves are majorly seen & used in Major applications in Chemical processing apart from Sleeved & Lined Plug are being used in few critical applications.
The advantages of Ball valves are below:
- Low pressure drop & High flow coefficient.
- Ball Valves are Quarter turn Valves which will drive to open or shut the valve in minimal time which is very crucial in Chemical processing.
- Ball valves come with Robust construction, Cost efficient& Low maintenance.
- Most crucial these valves come with majorly soft seat design offered class VI leakage as tight shut off and does not allow any leakage across the pipeline.
- Simple Automation to run the plant efficiently with less manpower.
Even with the above advantages there are some restrictions on using the Ball Valve in the below applications.
- High Temperature above 250 Degree Cent. & above in Soft seated.
- Cannot be used in Chlorine or Sulfuric acid or other exotic media as there is chance of media exposure from Stem packing.
- Size restrictions as the higher sizes of the Ball valves comes in huge weight as per the design.
Another type of valves used in Critical applications where media is Harmful to humans and environment and emissions to be controlled to atmosphere is Bellow Seal Valves.
The Advantages of Bellow seal Valves are below.
- Triple sealing design. Sealed by the bellows and packing apart from seat , if the bellows fail, the stem packing will remain intact and makes it leak-free.
- Zero Fluid loss across the gland Area.
- Leak free performance which promotes environmental friendliness as desired to achieve low Fugitive emission as per ISO 15848 std.
- Suitable to Higher temperature application with Class V leakage which also very crucial in Chemical processing.
- Robust design and Structure for reliable sealing and excellent performance.
- Suitable for Manual operation and Simple automation to run plant efficiently.
Considering the above critical applications Uniklinger offers below seal valves with the below unique specifications.
Uniklinger offers Bellow seal valves in Globe & Gate construction and proven in all the Chemical, pharma & Chloral alkali plants.
Uniklinger offers Eurochlor design and certified valves which is essential in all critical applications in Chloro alkali Industries.
UKL Bellow seal valves come with bellows from Witzman. Germany, and it’s been proven across the world for the efficiency.
Uniklinger maintain the in-house manufacturing which is most crucial in testing of Bellow seal valves