# 卸荷阀，板式安装 - R4U 系列 > R4U 系列板式安装先导式卸荷阀用于将液压回路卸荷至低压状态。 所属技术：液压技术 ## 技术参数 | 参数 | 值 | 单位 | | --- | --- | --- | | 频次 | na, 50/60 Hz | | | 安装类型 | 底板安装 | | | 运行类型 | 先导 | | | 启动类型 | 手动 | | | 重量 | 4.4, 2.7, 6.2, 4.5, 7.7, 6.0 kg | | | 产品序列 | 压力阀 | | | 最大流速 | N/A | | | 流速 | Depending on size, 150 - 650 L/min | | | 最大运行压力 | Port A, X 350 BAR; port B, Y depressurized bar | | | 最高运行温度 | 60 °C | | | 最低运行温度 | '-20 °C | | | 密封材料 | NBR, FPM | | | 最大压力设置 | 105, 210, 350 bar | | | 与流体类型共同使用 | Hydraulic oil according to DIN 51524, Water glycol | | | 阀体材料 | Cast iron | | ## 型号入口（首批） - [026-36110-H](https://hypher.com.cn/products/model/026-36110-h-5744fed2aafe5af0/index.md) - [R4U03-5311009GAGA1](https://hypher.com.cn/products/model/r4u03-5311009gaga1-6e69f8be0d1d1d4b/index.md) - [R4U03-5311009W30A5](https://hypher.com.cn/products/model/r4u03-5311009w30a5-4f0df19e0b241162/index.md) - [026-56299-H](https://hypher.com.cn/products/model/026-56299-h-069b5b3d9e0f5e90/index.md) - [016-65107-0](https://hypher.com.cn/products/model/016-65107-0-adc131f87c2117ba/index.md) - [R4U03-5311109G0QA1](https://hypher.com.cn/products/model/r4u03-5311109g0qa1-cd5a49106763e0c6/index.md) - [016-84529-0](https://hypher.com.cn/products/model/016-84529-0-7edac06f28dccab8/index.md) - [R4U03-53111A5](https://hypher.com.cn/products/model/r4u03-53111a5-7cef26492755615a/index.md) - [026-41395-H](https://hypher.com.cn/products/model/026-41395-h-35119551ea42f117/index.md) - [016-91943-0](https://hypher.com.cn/products/model/016-91943-0-d21b55dda8df7c31/index.md) - [R4U03-5313111G0QA1](https://hypher.com.cn/products/model/r4u03-5313111g0qa1-c78f46ea24345e00/index.md) - [016-95935-0](https://hypher.com.cn/products/model/016-95935-0-a4f329aba7920323/index.md) - [026-46844-H](https://hypher.com.cn/products/model/026-46844-h-5a0bc7d81e51fa87/index.md) - [R4U03-5331011G0QA1](https://hypher.com.cn/products/model/r4u03-5331011g0qa1-d6b8a58364178513/index.md) - [016-85322-0](https://hypher.com.cn/products/model/016-85322-0-1812a511b5394753/index.md) - [016-85322-5](https://hypher.com.cn/products/model/016-85322-5-1933df9225701b57/index.md) - [R4U03-5331109G0QA1](https://hypher.com.cn/products/model/r4u03-5331109g0qa1-63c17104a1a4c084/index.md) - [R4U03-5331109W30A5](https://hypher.com.cn/products/model/r4u03-5331109w30a5-4428cf053c2eee54/index.md) - [016-88472-0](https://hypher.com.cn/products/model/016-88472-0-c855fb33f7e2f640/index.md) - [R4U03-5333009G0QA5](https://hypher.com.cn/products/model/r4u03-5333009g0qa5-eca5e206795370d2/index.md) - [016-88646-0](https://hypher.com.cn/products/model/016-88646-0-84ebd43b936f37a7/index.md) - [026-75613-H](https://hypher.com.cn/products/model/026-75613-h-9e6671425e06869d/index.md) - [056-40319-0](https://hypher.com.cn/products/model/056-40319-0-e48eb915d7af93f4/index.md) - [R4U03-53340A1](https://hypher.com.cn/products/model/r4u03-53340a1-3d933d04656dc794/index.md) ## 技术资料与 CAD - [CATALOGUE - Hydraulic Valves Industrial Standard, Online Version--MSG11-3500/UK](https://www.parker.com/content/dam/Parker-com/Literature/Industrial-Systems-Division-Europe/Catalogues/Industrial-Valves-UK/MSG11-3500UK_Online.pdf)：document - [CATALOGUE - Unloading Valve Series R4U](https://hypher.com.cn/library-assets/9af424f3ad360950472b98a7d2cdaf415e4a301fe52977b59bec920bdf80508e.pdf)：document - [CERTIFICATE - DIN ISO 9001:2015 Certificate ISDE](https://www.parker.com/content/dam/Parker-com/Literature/Industrial-Systems-Division-Europe/Certificates/ISO_9001-ENG-10000407011-MSC-RvA-DEU-2-20260301.pdf)：document - [CERTIFICATE - Position Paper ISDE 2006/42/EC and EN ISO 13849](https://www.parker.com/content/dam/Parker-com/Literature/Industrial-Systems-Division-Europe/Certificates/Position_Paper-ISDE_2006-42-EG-and-EN-ISO-13849_EN.pdf)：document - [Unloading Pressure Control Valve Catalog - R4U Series (North America)](https://www.parker.com/content/dam/Parker-com/Literature/hydraulic-valve-systems-division/hydraulicvalve/Catalog-sections-for-websphere/Sandwich-Valves/R4U.pdf)：document - [工业液压控制阀（上册）--23-08-A HYD-CH-852P-IHV](https://www.parker.com/content/dam/Parker-com/Literature/China/Support-2019/MSG/IND-Hydrualic/%E5%B7%A5%E4%B8%9A%E6%B6%B2%E5%8E%8B%E6%8E%A7%E5%88%B6%E9%98%80%EF%BC%88%E4%B8%8A%E5%86%8C%EF%BC%89.pdf)：document 资料来源：[原始系列资料](https://ph.parker.com/cn/zh/product-list/r4u-unloading-valve) 价格、库存和交期请联系上海海费确认。更多型号和资料见 [完整系列页面](https://hypher.com.cn/products/hydraulics/r4u-unloading-valve)；[联系技术支持](https://hypher.com.cn/contact)