进入21世纪以来，随着我国离子膜烧碱项目的迅猛发展，山东龙飞机电设备有限公司紧抓机遇，深耕氯碱行业阀门领域，致力于高端阀门的国产化替代。公司紧跟国际先进设计理念，持续吸收、转化并创新阀门制造技术，走出了一条具有“龙飞特色”的高质量发展之路。
我们深知，市场竞争的核心是技术与品质。多年来，龙飞坚持“以用户为中心”，依托多年研发与生产经验，不断优化产品结构，提升调节精度与可靠性，并配套高效周到的售后服务，赢得了山东海力、烟台万华、昌邑海能、莘县华祥等众多氯碱企业的信赖。
龙飞核心产品：专为氯碱工况打造的高性能阀门
针对氯碱行业强腐蚀、高洁净、高安全性的特殊需求，龙飞阀门成功推出系列专用产品：
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金属单座调节阀：采用球芯形流道与上导向结构，流通能力强、无介质滞留，适用于循环水、蒸汽等工况；
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金属波纹管密封调节阀：选用Hastelloy C276材质焊接波纹管，耐干氯气腐蚀，顶部六角导向设计有效防脆裂，调节精度达±2%；
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衬塑系列阀门（单座/隔膜/蝶阀）：内衬PTFE，抗离子渗透、耐腐蚀性能优异，广泛用于盐水处理、湿氯气及盐酸系统。
龙飞始终坚信：用户是伙伴，更是老师。我们将继续以技术创新为驱动，以用户满意为目标，携手共创“贵我双赢”的未来。
Since the beginning of the 21st century, the rapid growth of China’s membrane-cell caustic soda projects has created opportunities for Shandong Longfei Electromechanical Equipment Co., Ltd. The company has focused on chlor-alkali valves and domestic alternatives to imported high-end products. By adopting advanced international design concepts and absorbing, adapting and innovating manufacturing technologies, it has developed its own approach to high-quality growth.
Technology and quality are at the heart of market competitiveness. Longfei follows a customer-centered approach, using its development and manufacturing experience to improve product designs, control accuracy and reliability. Responsive after-sales service has helped earn the trust of customers including Shandong Haili, Yantai Wanhua, Changyi Haineng and Shenxian Huaxiang.
Core Longfei products: high-performance valves for chlor-alkali service
To address strong corrosion, cleanliness and safety requirements, Longfei offers these specialized products:
- Metal single-seat control valves: globe-shaped flow passages and top guidance provide high flow capacity without media stagnation, for applications such as circulating water and steam.
- Metal bellows-sealed control valves: welded Hastelloy C276 bellows resist dry chlorine corrosion. Upper hexagonal guidance helps prevent brittle failure, with stated control accuracy of ±2%.
- Lined single-seat, diaphragm and butterfly valves: PTFE linings provide resistance to ion penetration and corrosion for brine treatment, wet chlorine and hydrochloric acid systems.
Longfei regards customers as both partners and teachers. It will continue to pursue technical innovation and customer satisfaction to create mutual success.
