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ما هو صمام الاستراحة؟
A breather valve(pressure/vacuum relief valve) is designed to protect storage tanks, process systems, and equipment from excessive pressure and vacuum conditions. These valves allow for the controlled venting of gases or vapors and help to maintain a safe working environment by preventing tank damage and minimizing product loss due to evaporation.
كيف تعمل صمامات الاستراحة؟
Breather valves work by using weight-loaded or spring-loaded pallets to control the flow through the valve. When the internal pressure or vacuum reaches a set point, the pallet lifts off the seat to allow flow. This prevents emission losses until very close to the set pressure and prevents air intake until very close to the set vacuum.
ما هي فوائد استخدام صمام الاستراحة؟
- High flow capacity from a compact valve size.
- Wide range of pressure and vacuum settings for maximum tank protection.
- Minimization of gas loss and evaporation, resulting in economic savings.
- Compliance with stringent emission control regulations.
- Modular design allows for customization to specific requirements.
ما هي المواد التي تصنع منها صمامات الاستراحة؟
Breather valves can be constructed from various materials, including aluminum, stainless steel, carbon steel, ductile iron, and alloys such as C276. The choice of material depends on the specific application and the type of media being handled.
ما هي التطبيقات الشائعة لصمامات الاستراحة؟
Common applications include protecting storage tanks in industries such as pharmaceuticals, food and beverage, chemical processing, and petrochemical industries. They are also used in systems where vapors need to be piped away or vented to the atmosphere.
ما هي المعايير التي تتوافق معها صمامات الاستراحة؟
Breather valves are designed and tested according to standards such as API 2000:2014 and EN ISO 28300:2016. They also meet European Directive 2014/34/EU for equipment used in potentially explosive atmospheres (ATEX).
كيف أحدد صمام الاستراحة المناسب لتطبيقي؟
Selecting the right breather valve involves considering factors such as tank size, media characteristics (flash point, boiling point, latent heat of vaporization, molecular mass), location, maximum filling and emptying rates, and the required set pressure and vacuum settings. Consulting with a Yee Valve expert and using a valve sizing service can help ensure optimal performance and cost-effectiveness.
ما هي الصيانة المطلوبة لصمامات الاستراحة؟
Regular inspection and maintenance are necessary to ensure breather valves operate correctly. This includes checking for any blockages, ensuring the pallets and seats are clean and free of debris, and verifying that the set pressures and vacuums are accurate. Maintenance procedures should follow the manufacturer’s recommendations to maintain safety and efficiency.
