CV Self-Sealing Valve

Pressure connections: customizable
Nominal diameter: customizable

Application and Characteristics of CV Self-Sealing Valve for SF6 Gas Density Transmitters

The CV self-sealing valve is a high-performance supporting component specifically developed for SF6 gas density transmitters, which is mainly used to connect the transmitter with the air chamber of SF6-insulated electrical equipment. It integrates connection, sealing and maintenance functions, and is an indispensable key accessory in SF6 gas monitoring systems. Widely applied in power systems and industrial high-voltage equipment fields, the CV self-sealing valve effectively ensures the airtightness of SF6 gas, improves the reliability of monitoring systems, and provides convenient conditions for equipment maintenance.
The application scenarios of the CV self-sealing valve are closely associated with SF6-insulated electrical equipment, with strong pertinence and wide coverage. It is mainly used in various voltage level power substations, matching SF6 gas-insulated switchgears (GIS), SF6 circuit breakers, SF6 transformers and surge arresters. In addition, it is also suitable for SF6-insulated mutual inductors, inflatable cabinets and gas-insulated busbar systems in new energy power generation projects, petrochemical plants and high-speed railway power supply systems. It is applicable to both new equipment installation and old equipment retrofitting, and can adapt to harsh working environments such as high altitude, cold, humidity and strong electromagnetic interference, with a working temperature range of -40℃ to +70℃.
The CV self-sealing valve has prominent technical characteristics and unique advantages, which fully meet the actual application needs. Firstly, it has excellent self-sealing performance; relying on its special structural design, it can automatically enhance the sealing effect with the increase of SF6 gas pressure, with a leakage rate lower than 1×10^-8 Pa·m³/s. Secondly, it supports maintenance without gas release, enabling calibration or replacement of SF6 density transmitters without releasing SF6 gas, which is environmentally friendly and efficient. Thirdly, it is easy to operate; it can be quickly installed and disassembled without professional tools, reducing maintenance workload and improving work efficiency. Finally, it has strong corrosion resistance and long service life, with valve body made of high-quality stainless steel or copper alloy, which can resist the corrosion of SF6 decomposition products.
In conclusion, the CV self-sealing valve is a crucial supporting component for SF6 gas density transmitters. With its excellent sealing performance, convenient operation and wide adaptability, it effectively ensures the safe and stable operation of SF6-insulated electrical equipment, reduces maintenance costs and environmental risks, and has broad application prospects in the digital transformation of power systems.