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Product name： | BFFW型比例换向阀(带电反馈) | |||||
| specification： |   Zoom in on the image |
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| Category： | Pump valve fittings -- 比例阀 | ||||||
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Price： | factory price | |||||
| Brand： | Shanghai | ||||||
| Place of Origin： | China | ||||||
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Available Quantity： | batch | |||||
| delivery cycle： | Spot goods (or inquire by telephone) | ||||||
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BFFW型阀是由比例电磁铁控制带电反馈的直动型比例换向阀，用来控制液流的流量和流动方向。该阀通油能力强，滞环小，重复精度高，适用于闭环控制回路，广泛应用在机床、轻工、冶金、矿山、航天等各领域自动化控制中。
型号说明： 
机能符号:
技术参数：
液压部分
| 规格 | 02 | 03 | |
| 最高工作 压力MPa | P、A、B | 31.5 | 31.5 |
| T | 16 | 16 | |
| 最大流量 l/min | 65 | 130 | |
| 滞环% | ＜1 | ||
| 重复精度% | ＜1 | ||
| 过滤精度um | ≤20 | ||
| 响应灵敏度% | ＜0.5 名义信号 | ||
| 频率响应 | 6 | 4 | |
| 液压介质 | 矿物质液压油、磷酸脂液压油 | ||
| 介质粘度范围mm2/S | 2.8~100 | ||
| 介质温度范围℃ | -20~70 | ||
| 安装位置 | 任选 | ||
| 重量Kg | 二位阀 | 1.9 | 5.6 |
| 三位阀 | 2.6 | 7.6 | |
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电源型式及电压 |
直流24V（或者12V） | ||
| 电磁铁最大电流A | 1500 | ||
| 线圈电阻Ω | 20 下冷态值 | 5.4 | 10 |
| 最大热态值 | 8.1 | 15 | |
| 工作状态连续 | 连续 | ||
| 线圈温度℃ | 150 | ||
| 环境温度℃ | 50 | ||
| 绝缘要求 | IP65 | ||
| 配套放大器 | 有2个斜坡时间 | VT-5001S20(二位四通) | VT-5002S20(二位四通) |
| 有1个斜坡时间 | VT-5005S20(三位四通) | VT-5006S20(三位四通) | |
| 电气测量系统 | 差动变压器 | ||
| 工作行程mm | ±4.5 | ||
| 线性度% | 1 | ||
| 线圈电阻 | IR20 | 56 | |
| IIR20 | 56 | ||
| IIIR20 | 112 | ||
| 电感mH | 6~8 | ||
| 频率KHz | 2.5 | ||
| 绝缘要求 | IP65 | ||
BFFW型比例换向阀(带电反馈)
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