Precautions for The Use of Check Valves And Globe Valves

Check valves and globe valves have their own characteristics in function and structure, and each is suitable for different application scenarios. When choosing a valve type, you should make comprehensive considerations based on actual needs and application scenarios, communicate and understand in detail with the valve supplier, and choose the most suitable valve type. So what are the precautions for using check valves and stop valves? The following will introduce you to common precautions.

Check Valve Precautions for Use

(1) Follow The Operating Procedures: In the operation of the check valve, be sure to strictly comply with the operating procedures to ensure its normal operation. Do not arbitrarily adjust the structure of the check valve, so as not to affect its performance.

(2) Regular Inspection And Maintenance: Regularly carry out detailed inspection and maintenance of the check valve to ensure the normal operation of its components. For some wearing parts, such as gaskets, etc., should be replaced in time to prevent the check valve from failing.

(3) Prevent Reverse Impact: When installing the check valve, to ensure that its direction is correct, to prevent the medium from reverse impact if the medium has the possibility of reverse flow, you can install the corresponding guiding device before and after the check to guide the correct flow of media.

(4) Avoid Prolonged Full-load Operation: Try to avoid the check valve for a long time in the full load state operation, in order to prevent it from overheating, damage. When designing the system, the rated flow and pressure of the check valve should be reasonably calculated to ensure that it operates within the safety range.

(5) Pay Attention to The Selection of Appropriate Check Valve Model And Material: Select the appropriate check valve model and material to meet the needs of the actual working conditions, and when installing the check valve, make sure that it is firmly connected to the pipeline to prevent leakage. If you have any questions or encounter problems, please contact professionals for technical support.

Precautions for the Use of Globe Valves

(1) Check The Leakage Problem: Before opening, should check in detail whether the globe valve leakage phenomenon, and also to determine whether the valve leakage problem exists, but also to determine whether the packing box leakage problem exists. Determine that there is no problem before you can open the operation.

(2) Reasonable Completion of The Valve Stem Operation of The Shut-off Valve: If the manual can not complete the operation of the valve stem of the shut-off valve, you can use a special F wrench instead, if the F wrench is still not able to complete the operation of the valve stem of the shut-off valve, you can not use the extension wrench to force the opening and closing, otherwise it is easy to damage the valve, if the situation is serious, it may also lead to safety accidents.

(3) The use of Medium-pressure Gas Pipeline: If the shut-off valve used in medium-pressure gas pipeline, then before opening the shut-off valve, it should be condensate removal, and then should be preheated on the pipeline steam, and the preheating pressure needs to be maintained again between 0.2 MPa and 0.3 MPa, so that you can effectively avoid when the temperature or pressure changes, the seals appear damaged.

In general, check valves and globe valves are different in function and structure, applicable to different use scenarios, it is very important to pay attention to the details that need to be paid attention to its use.

Article source: https://article-realm.com/article/Business/68761-Precautions-for-The-Use-of-Check-Valves-And-Globe-Valves.html