The ZZDQ nitrogen sealing device is a set of self-operated micro-pressure control systems independently developed and developed by our factory. It is mainly used to maintain a constant pressure of the protective gas (usually nitrogen) at the top of the container to avoid direct contact between the materials in the container and the air, and to prevent material volatilization. ,Oxidized. and container security. It is especially suitable for air seal protection systems of various large storage tanks. This product has the characteristics of energy saving, sensitive action, reliable operation, convenient operation and maintenance. Widely used in petroleum, chemical and other industries.

Self-operated Nitrogen Seal Valve

- No additional energy is required, and it can work in places without electricity or gas. It is convenient, saves energy and reduces costs;
- The nitrogen supply and nitrogen release pressures of the ammonia sealing device are easy to set. Can be carried out under continuous production conditions;
- The effective area of the pressure detection diaphragm is large, the setting spring stiffness is small, the action is sensitive, and the device works smoothly;
- Adopting a packing-less design, the friction force on the valve stem is small, the response is rapid, and the control accuracy is high;
- The fish supply device is operated by a pilot, with a pressure reduction ratio of up to 100:1, good pressure reduction effect, and high control accuracy;
- To ensure the safety of the storage tank, a breathing valve needs to be installed on the top of the tank;
- The breathing valve only plays a safety role and avoids the shortcomings of frequent opening and closing of conventional nitrogen sealing devices that are easily damaged.