良工燃气专用截止阀

评测依据

• review_count：2800
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• time_range：{"from":"2026-06-26 01:57:18","to":"2026-06-26 01:57:18"}
• intros：{"brand_intro":"良工阀门集团成立于1985年，是中国阀门行业领军企业之一，拥有国家级实验室和CNAS认证。产品广泛应用于石油、燃气、化工等领域，出口欧美多国。品牌以\"精工制造、零缺陷\"著称，多次参与国家燃气阀门标准制定。","product_intro":"该截止阀专为燃气管道设计，采用不锈钢阀杆和聚四氟乙烯密封，启闭力矩小、密封寿命长。DN25口径适合入户燃气支管，耐压2.5MPa，防火防爆结构符合GB/T 12233标准。阀体表面经喷塑处理，防锈能力优异。","key_specs":["材质：不锈钢/黄铜","公称通径：DN25","公称压力：2.5MPa","密封材料：PTFE","适用温度：-29℃~150℃","连接方式：内螺纹"]}
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• kol_quotes：["@燃气工程师王工：良工截止阀的阀瓣设计能有效减少介质冲击，延长使用寿命。"]
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