Power station gate valve, also known as power station special valve, is mainly used in the pipeline of various systems of thermal power stations to cut off or connect the pipeline medium. Applicable media: water, steam and other non-corrosive media. Compared with other valve products, power station valve is characterized by high temperature and high pressure, unique self-sealing design, the higher the pressure, the more reliable the sealing. Due to the performance and technical characteristics, the special working conditions make the product also form the characteristics that can not be replaced by other products.
Structural characteristics
1. Frictionless opening and closing: This function completely solves the problem of sealing caused by the friction between the sealing surface of the traditional valve.
2. Top type structure: the valve installed on the pipeline can be directly checked and maintained online, which can effectively reduce the device parking and reduce costs.
3. Single-seat valve design: eliminate the problem that the medium in the valve cavity affects the safety of use due to abnormal pressure boost.
4. Low torque design: The valve stem with special structure design can be easily opened and closed with a small handle valve.
5. Wedge seal structure: The valve is sealed by the mechanical force provided by the valve stem, and the wedge is pressed to the seat, so that the sealing of the valve is not affected by the pressure difference of the pipeline, and the sealing performance is reliably guaranteed under various working conditions.
Standards and specifications
Design standard: NB/T47044 ASME B16.34
Structure length: GB/T 12221 DL/T 531
Butt welded connection size: NB/T 47044
Test and inspection: NB/T 47044
Pressure-temperature: NB/T 47044
