上工（SGC）塑料减压阀 耐腐蚀型

评测依据

• review_count：1500
• rating_avg：4.3
• brand_reputation：0
• merchant_count：0
• price_range：[300,799]
• dimension：best_value
• sources：["京东","天猫"]
• time_range：{"from":"2026-06-26 01:13:28","to":"2026-06-26 01:13:28"}
• intros：{"brand_intro":"上工（SGC）是上海工具有限公司旗下品牌，成立于1958年，是中国老牌工具与仪器制造商。公司拥有超过60年的生产经验，产品涵盖减压阀、焊割工具等。上工以\"耐用、实惠\"著称，在工业与实验室领域均有良好口碑，尤其在中低端市场占据重要地位，是许多用户的\"入门首选\"。","product_intro":"上工YQY-07塑料减压阀专为耐腐蚀设计，阀体采用聚丙烯（PP）材质，耐酸碱性能优异。适用于氧气、氮气、二氧化碳等气体，入口压力0-2500psi，出口压力0-100psi。产品结构简单，维护方便，配备安全泄压阀。虽然精度不如高端型号，但足以满足一般实验室和工业气体控制需求，是经济型用户的可靠选择。","key_specs":["材质：PP塑料阀体","入口压力：0-2500 psi","出口压力：0-100 psi","工作温度：0°C至+60°C","接口规格：1/4\" NPT","重量：约0.4 kg"]}
• alt_products：[{"product_name":"上工（SGC）塑料减压阀 耐腐蚀型","brand":"上工（SGC）","model":"YQY-07","price":320},{"product_name":"飞越（VALUE）塑料减压阀 双级式","brand":"飞越（VALUE）","model":"VLR-2S","price":450},{"product_name":"科仪（KEYI）塑料减压阀 高精度型","brand":"科仪（KEYI）","model":"KY-2000","price":550}]
• kol_quotes：["@工业设备老司机：上工是老牌子了，YQY-07皮实耐造，适合粗活。","@实验室省钱攻略：如果预算紧张，上工这款可以闭眼入。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":78.6,"weight":0.15,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户评价集中在\"便宜好用\"上，认为上工YQY-07是预算有限时的最佳选择。多位买家反馈其耐腐蚀性不错，在酸性气体环境中使用半年无损坏。缺点包括调节精度一般，压力波动略大，不适合精密仪器。整体来说，对于非关键实验，这款减压阀性价比极高。","source_count":2}},{"source":"objective","score":86.40759519038075,"weight":0.6,"confidence":0.5,"details":{"rating_avg":4.3,"price":320,"wom_score":78.6}},{"source":"user_review","score":86,"weight":0.15,"confidence":1,"details":{"rating_avg":4.3,"review_count":1500,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["@工业设备老司机：上工是老牌子了，YQY-07皮实耐造，适合粗活。","@实验室省钱攻略：如果预算紧张，上工这款可以闭眼入。"]}}]
• method_version：v2
• search_visual：null