{
  "product_id": "JL-0149",
  "source_model": "JL300ZC-D04",
  "title": "自力式压差（压差上升阀开）控制阀",
  "category_path": [
    "自力式控制阀",
    "自力式压差控制阀"
  ],
  "description": "自力式压差（压差上升阀开）控制阀。型号：CHYN300ZC-D04。规格参数见关联资料，尚需核对。",
  "specifications": [
    [
      "公称通径",
      "DN15、20、25、32、40、50、65、80、100、125、200、250mm",
      ""
    ],
    [
      "公称压力",
      "PN1.6、4.0MPa",
      ""
    ],
    [
      "法兰标准",
      "ANSI、JIS、DIN、GB、JB(特殊可按用户提供)",
      ""
    ],
    [
      "阀体材料",
      "铸铁（HT200）、铸钢（ZG230-450）、铸不锈钢( ZG1Cr18Ni9Ti、ZG1Cr18Ni12Mo2Ti )",
      ""
    ],
    [
      "阀芯材料",
      "硬密封",
      "不锈钢（1Cr18ni9Ti、1Cr18Ni12MoTi）"
    ],
    [
      "阀芯材料",
      "软密封",
      "不锈钢镶嵌橡胶圈"
    ],
    [
      "压力平衡",
      "不锈钢波纹管（DN15~125）、平衡膜片（DN150~250）",
      ""
    ]
  ],
  "drawing_status": "schematic_draft",
  "drawing_status_label": "重绘稿待技术核对",
  "dimension_gap_reason": null,
  "source_url": "https://www.juliang.cn/products/self-operated-valve/differential-pressure/149.html",
  "source_date": "2026-10-23",
  "dimension_notice": "尺寸重绘资料仅供选型参考，实际配置与安装尺寸需技术确认。",
  "main_image": "/static/uploads/juliang_20261026/assets/self-operated-valves/self-operated-valves-323b0cfc/JL-0149/main.png",
  "drawings": [
    "/static/uploads/juliang_20261026/assets/self-operated-valves/self-operated-valves-323b0cfc/JL-0149/drawing_01.png"
  ],
  "model": "CHYN300ZC-D04"
}