Zhejiang Oil Seal Explosion-Proof Plug - Wholesaler - Factory - Best Seller - Price [Leqing Zhenlei Explosion-Proof Electrical Appliances Co., Ltd.] The oil seal explosion-proof plug is a specialized safety device used to prevent oil leakage or propagation in flammable and explosive environments, commonly installed at the openings of pipelines, containers, or equipment, serving dual functions of sealing and explosion-proof. I. Product Features: - Explosion-proof Performance: Compliant with explosion-proof standards (such as Exd II), suitable for gas environments (Zone 1, 2) and dust environments (Zone 20, 21, 22). Designed with special materials and structures to prevent static discharge, sparks, or high temperatures. - Sealing Performance: Excellent sealing properties, preventing leakage of oil, gas, or dust. The sealing part is typically made of rubber or other elastic materials, ensuring no leakage during long-term use. - Corrosion Resistance: Materials are mostly made of stainless steel (such as 304 stainless steel), brass, or carbon steel, with zinc-plated surface treatment, providing strong corrosion resistance suitable for harsh environments. - Easy Installation: Threaded design (such as G thread, M thread, NPT thread), easy to install, quick to dismantle and replace. - Temperature Adaptability: Wide working temperature range, usually -20°C to 120°C, with some products capable of withstanding higher temperatures. II. Application Range: - Petroleum & Chemical Industry: Refineries, chemical factories, petrochemical equipment, etc., in high-temperature and high-pressure environments, to prevent oil leakage causing fires. - Ocean Engineering: Offshore oil drilling, natural gas transmission pipelines, etc., to prevent accidents caused by leaks. - Aerospace: High-pressure gas transmission systems, to prevent gas leaks causing safety accidents. - Automotive Industry: High-pressure oil lines, fuel injectors, and other critical components, to prevent fire caused by oil line leaks. - Coal Mine & Mining: Ventilation, drainage, gas extraction systems, ensuring safe connections. - Industrial Manufacturing: Chemical fibers, paints, fertilizers, pharmaceuticals, and other industrial production, to prevent leakage of flammable and explosive media.