BAIJIAN - Third party testing organization
Blowdown valve detection Blowdown valve refers to a valve evolved from the gate, which uses a gear to rotate 90 degrees to drive the valve stem to lift and achieve the purpose of opening and closing. The sewage valve not only has a simple structure and good sealing performance, but also has small volume, light weight, low material consumption, small installation size, especially small driving torque, simple operation, and easy to achieve fast opening and closing. In addition, the fast drain valve can use multiple materials according to the nature of the medium, meeting the working conditions requirements of various media. Structural features: 1. The valve body and valve cover are connected in a clamp style, with a compact structure, convenient disassembly, and easy installation. The branch pipes are connected by welding. 2. Adopting a pressure self tightening sealing structure, the sealing ring is made of formed asbestos packing, and the higher the medium pressure, the better the sealing performance. 3. The medium flows into the branch pipe and is discharged downwards. 4. The valve disc is a piston type structure and undergoes boronizing treatment. Corrosion resistance and erosion resistance. Long service life. Function of the sewage valve: The sewage valve has two functions: first, to discharge the accumulated scale and sludge in the boiler; The second is that residual water can be discharged when the boiler is full or stopped for cleaning. There are two common types of drain valves: plug drain valves and gate drain valves. (1) A plug type drain valve (also known as a drain cock) mainly consists of two parts: a plug body and a plug rod. There is a curved conical stopper rod with a large top and a small bottom inside the stopper body, and there is an elongated pair of perforations on the stopper rod. When discharging, roll the square head at the top of the plug rod 90 ° to align the plug hole with the inlet and outlet channels, and the boiler water can be discharged; If the stopper rod is rotated another 90 °, the passage can be closed. This valve has a simple structure and is easy to operate, but the sealing surface is prone to wear and tear, making it only suitable for low pressure applications
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBAIJIAN inspection and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China