榆次液压 4WRE 系列比例方向阀

评测依据

• review_count：450
• rating_avg：4.3
• brand_reputation：0
• merchant_count：0
• price_range：[800,1999]
• dimension：best_value
• sources：["DeepSeek"]
• time_range：{"from":"2026-06-26 01:55:23","to":"2026-06-26 01:55:23"}
• intros：{"brand_intro":"榆次液压是中国最早的液压元件专业制造商之一，成立于1958年，隶属于太重集团。作为国内液压行业的\"黄埔军校\"，榆次液压在比例阀、方向阀、压力阀等领域拥有成熟技术，产品广泛应用于工程机械、冶金、矿山等领域。近年来通过引进德国技术，其比例阀性能已接近国际主流水平，且价格优势明显。","product_intro":"4WRE系列是榆次液压自主研发的比例方向阀，采用直动式结构，带比例电磁铁和内置放大器。该阀具备基本的比例控制功能，滞环约0.5%，适用于对精度要求不高的开环或简单闭环系统，如塑料机械、打包机、农业机械等。结构紧凑，维护简便，是国产替代进口的典型产品。","key_specs":{"最大工作压力":"250 bar","额定流量":"25 L/min (Δp 10 bar)","滞环":"< 0.5%","重复精度":"< 0.3%","供电电压":"24 VDC","响应时间":"≤ 50 ms"}}
• alt_products：[{"product_name":"榆次液压 4WRE 系列比例方向阀","brand":"榆次液压 (Yuci Hydraulics)","model":"4WRE 10 E1-2X/G24K4/M","price":1800}]
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