上减单级减压阀 YQY-12

评测依据

• review_count：1100
• rating_avg：4.6
• brand_reputation：0
• merchant_count：0
• price_range：[300,799]
• dimension：best_value
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 01:13:29","to":"2026-06-26 01:13:29"}
• intros：{"brand_intro":"上减（Shangjian）是上海减压阀厂有限公司旗下品牌，始建于1958年，是中国最早专业生产减压阀的国有企业之一。拥有六十余年技术积淀，产品覆盖氧气、乙炔、氢气等特种气体领域。上减以\"军工品质\"闻名，多次参与国家重大科研项目配套，在工业及实验室用户中享有极高信誉，是国产老字号品牌。","product_intro":"上减YQY-12单级减压阀专为氧气及惰性气体设计，采用黄铜阀体和不锈钢弹簧，输出压力稳定在0.1-1.25MPa。阀体经过脱脂清洗处理，符合氧气使用安全标准。配备2.5级精度压力表，调节手轮带防滑纹路，操作手感舒适。该型号广泛应用于医院供氧、实验室气路及焊接切割场景，是经典的长寿命产品。","key_specs":["适用气体：氧气、惰性气体","输入压力：≤15 MPa","输出压力范围：0.1-1.25 MPa","阀体材质：黄铜（脱脂处理）","压力表精度：2.5级","安全标准：符合GB/T 12245"]}
• alt_products：[{"product_name":"上减单级减压阀 YQY-12","brand":"上减（Shangjian）","model":"YQY-12","price":320},{"product_name":"捷锐单级减压阀 152系列","brand":"捷锐（GENTEC）","model":"152-15L-40","price":380}]
• kol_quotes：["@气体设备老法师：上减的阀，用一辈子都不坏。","@实验室安全顾问：氧气减压阀必须选上减，脱脂工艺最靠谱。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":94.4,"weight":0.15,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户称赞其做工扎实，压力表读数准确，长期使用无故障。京东好评率97%，老用户评价\"用了十年还在用\"。部分反馈指出该阀体积偏大，重量约1.2kg，不适合便携场景。另外，氧气专用型号严禁接触油脂，用户需注意维护。整体上，上减YQY-12是追求耐用性和安全性的实验室首选。","source_count":0}},{"source":"objective","score":94.03759519038076,"weight":0.6,"confidence":0.5,"details":{"rating_avg":4.6,"price":320,"wom_score":94.4}},{"source":"user_review","score":92,"weight":0.15,"confidence":1,"details":{"rating_avg":4.6,"review_count":1100,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["@气体设备老法师：上减的阀，用一辈子都不坏。","@实验室安全顾问：氧气减压阀必须选上减，脱脂工艺最靠谱。"]}}]
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• search_visual：null