良工低温截止阀

评测依据

• review_count：3200
• rating_avg：4.7
• brand_reputation：0
• merchant_count：0
• price_range：[300,799]
• dimension：best_quality
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 02:02:34","to":"2026-06-26 02:02:34"}
• intros：{"brand_intro":"良工阀门集团成立于1992年，总部位于浙江温州，是国内领先的工业阀门制造商。公司专注于高、中、低压阀门研发生产，拥有多项低温阀门专利，产品广泛应用于石油、化工、液化天然气等领域，以高密封性和耐低温性能著称，年产值超10亿元。","product_intro":"良工DJ41Y低温截止阀专为-196℃深冷工况设计，采用不锈钢阀体与低温密封填料，确保在极端低温下启闭灵活、无外漏。适用于LNG、液氧、液氮等介质管道，公称压力1.6MPa，连接方式为法兰连接，操作扭矩小，使用寿命长。","key_specs":["适用温度：-196℃～+80℃","公称压力：PN16（1.6MPa）","阀体材质：CF8（304不锈钢）","密封面：硬质合金（司太立）","连接方式：法兰（GB/T 9113）","适用介质：LNG、液氧、液氮"]}
• alt_products：[{"product_name":"良工低温截止阀","brand":"良工阀门","model":"DJ41Y-16C DN50","price":680},{"product_name":"苏阀低温闸阀","brand":"苏阀","model":"Z41Y-16P DN65","price":780},{"product_name":"纽曼低温球阀","brand":"纽曼阀门","model":"Q41F-16P DN40","price":550}]
• kol_quotes：["良工这款低温阀在-196℃下开关两千次仍无泄漏，国产精品。","性价比之王，比进口品牌便宜一半，性能不输。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":87.1,"weight":0.2,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍反映该阀门在LNG储罐和液氧管道中表现稳定，低温下密封性极佳，无泄漏现象。多位工业用户称赞其阀杆转动顺滑，安装方便。部分评价提到法兰垫片需自行另配，但整体性价比高，复购率超过60%。","source_count":0}},{"source":"objective","score":91.24,"weight":0.5,"confidence":0.8,"details":{"rating_avg":4.7,"review_count":3200,"wom_score":87.1}},{"source":"user_review","score":94,"weight":0.2,"confidence":1,"details":{"rating_avg":4.7,"review_count":3200,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["良工这款低温阀在-196℃下开关两千次仍无泄漏，国产精品。","性价比之王，比进口品牌便宜一半，性能不输。"]}}]
• method_version：v2
• search_visual：null