What is the quota for electric butterfly valve?
In engineering construction, the installation and application of quotas for electric butterfly valves is a common technical problem. As an automated control valve, electric butterfly valve is widely used in water supply and drainage, HVAC, chemical industry and other fields. This article will combine the hot topics and hot content on the Internet in the past 10 days to analyze in detail the quota issues applied to electric butterfly valves, and provide structured data for reference.
1. Principles of quota application for electric butterfly valves
The quota application of the electric butterfly valve needs to be determined according to its specifications, model, installation method and the characteristics of the system in which it is located. The following are common quota application principles:
| Project | Quota number | Scope of application |
|---|---|---|
| Electric butterfly valve below DN50 | CE0101 | small duct system |
| DN50-DN200 electric butterfly valve | CE0102 | medium duct system |
| Electric butterfly valve above DN200 | CE0103 | Large piping system |
2. Analysis of installation costs of electric butterfly valve
The installation cost of electric butterfly valve includes the cost of the valve body, installation labor cost, auxiliary material cost, etc. The following is the cost reference data mentioned in hot topics in the past 10 days:
| Valve specifications | Unit price (yuan) | Installation labor cost (yuan) | Auxiliary material fee (yuan) |
|---|---|---|---|
| DN50 | 800-1200 | 200-300 | 100-150 |
| DN100 | 1500-2000 | 300-400 | 150-200 |
| DN200 | 2500-3500 | 400-500 | 200-250 |
3. Selection and quota matching of electric butterfly valves
The selection of electric butterfly valve directly affects the application of quota. The following are key points to note when selecting:
1.Valve material:Select stainless steel, cast iron or plastic material according to the medium characteristics.
2.pressure level: The corresponding ratings for low voltage (PN10), medium voltage (PN16) and high voltage (PN25) are different.
3.Control method: The installation complexity of switch-type and regulating-type electric butterfly valves is different, and the quota needs to be adjusted.
| Control method | Quota adjustment factor |
|---|---|
| switch type | 1.0 |
| Adjustable type | 1.2 |
4. Frequently Asked Questions about Electric Butterfly Valve Installation
According to hot discussions in the past 10 days, common problems in the installation of electric butterfly valves include:
1.Quota application error: Some construction units apply electric butterfly valves to ordinary valve quotas, resulting in cost deviations.
2.Improper installation position: Electric butterfly valves need to be avoided being installed in areas with large vibrations or high temperatures, otherwise their service life will be affected.
3.Irregular electrical wiring: The wiring of the electric actuator must comply with the specifications, otherwise it may cause malfunction.
5. Summary
The application of quotas for electric butterfly valves must comprehensively consider factors such as specifications, materials, control methods, etc., and refer to the latest quota standards. The correct application of quotas can not only ensure the accuracy of project costs, but also improve construction efficiency. It is recommended that the quota coefficient be flexibly adjusted in combination with the specific conditions of the project in actual operations.
The above content is based on the hot topics and hot content on the entire network in the past 10 days, and is provided for reference by engineering and technical personnel.
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