ASME B30.21-2025 PDF下载

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ASME B30.21-2025 pdf download
ASME B30 系列规范打包下载:https://fengshecad.com/804/
ASME B30.21-2025 杠杆葫芦安全标准 PDF下载
ASME B30.25 是 ASME B30 系列中专为“杠杆葫芦”(Lever Hoists)制定的安全规范,2025 版覆盖手动、电动及气动杠杆葫芦的设计、制造、安装、检验、测试、维护与操作。标准首次提出“操作者位置系数”概念,要求手柄操作力≤360 N 且空载时手柄回程≤20°;强制制动器在 125% 额定载荷下无滑移、动载试验 1.5 倍载荷循环 1 000 次无零件失效;新增链条伸长率 3% 报废、链环扭曲 10° 禁用、上下吊钩开口度增大 15% 强制更换等量化指标;明确高空作业防坠附加闭锁、低温-40 ℃ 冲击韧性≥27 J 的材料要求,以及每 12 个月一次满载制动性能验证,为电力检修、船厂装配、仓储物流等频繁轻小型起重场景提供统一安全合规依据

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ASME B30.20-2025 PDF下载

2026-1-4 17:23:11

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ASME B30.22-2023 PDF下载

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