# 先导式卸荷阀，SAE 法兰型 - R5U 系列 > 派克R5U 系列是先导压力卸荷阀，适用于在低压下卸荷回路。SAE 法兰允许将阀直接安装在泵的出口法兰上，使其结构更为紧凑。 所属技术：液压技术 ## 技术参数 | 参数 | 值 | 单位 | | --- | --- | --- | | 主体类型 | 3 接口，M、Y1、X = G 1/4 | | | 法兰尺寸 | SAE61 | | | 频次 | na, 50/60 Hz | | | 安装类型 | SAE 法兰型 | | | 运行类型 | 先导 | | | 启动类型 | 电磁铁, 手动 | | | 产品序列 | 压力阀 | | | 重量 | 3.6 - 9.7，取决于大小 kg | | | 最大运行压力 | Depending on size, 280 - 350 bar | | | 最大压力设置 | 105, 210, 350 bar | | | 流速 | Depending on size, 90 - 600 L/min | | | 最大流速 | N/A L/min | | | 密封材料 | NBR, FPM | | | 最高运行温度 | 60 °C | | | 最低运行温度 | '-20 °C | | | 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） - [026-99435-H](https://hypher.com.cn/products/model/026-99435-h-66722c02b4efcae0/index.md) - [026-66016-0](https://hypher.com.cn/products/model/026-66016-0-479c70e34bf62090/index.md) - [R5U10-4953509G0QA1](https://hypher.com.cn/products/model/r5u10-4953509g0qa1-debbbba06313dd7e/index.md) - [R5U12-39114A1](https://hypher.com.cn/products/model/r5u12-39114a1-acc51be4645c327b/index.md) - [026-65687-H](https://hypher.com.cn/products/model/026-65687-h-982fb70384af5719/index.md) - [R5U12-3911509W30A5](https://hypher.com.cn/products/model/r5u12-3911509w30a5-7f261f2cdb2f59a7/index.md) - [026-62517-0](https://hypher.com.cn/products/model/026-62517-0-94f1130ed50e54d3/index.md) - [026-67510-0](https://hypher.com.cn/products/model/026-67510-0-111a300566408be9/index.md) - [026-57281-0](https://hypher.com.cn/products/model/026-57281-0-3b6ff8f4c3d034fe/index.md) - [026-30602-H](https://hypher.com.cn/products/model/026-30602-h-e0af3840b9d59849/index.md) - [026-30866-B](https://hypher.com.cn/products/model/026-30866-b-d6c60b763e415c65/index.md) - [R5U12-3931511G0QA1](https://hypher.com.cn/products/model/r5u12-3931511g0qa1-1d89488427fbb52d/index.md) - [026-53555-0](https://hypher.com.cn/products/model/026-53555-0-cd2d5da022122af8/index.md) - [026-39439-H](https://hypher.com.cn/products/model/026-39439-h-6d1aed6c948d2deb/index.md) - [R5U12-3933509W30A1](https://hypher.com.cn/products/model/r5u12-3933509w30a1-55db4ee46b19a212/index.md) - [R5U12-39335A1](https://hypher.com.cn/products/model/r5u12-39335a1-e046e5b68a806f82/index.md) - [R5U06-5911509G0QA1](https://hypher.com.cn/products/model/r5u06-5911509g0qa1-6dadca9c27e86658/index.md) - [R5U06-5911509G0QA5](https://hypher.com.cn/products/model/r5u06-5911509g0qa5-8585ce55964d172f/index.md) - [026-62026-0](https://hypher.com.cn/products/model/026-62026-0-ac5249717b122aaa/index.md) - [R5U06-59135A1](https://hypher.com.cn/products/model/r5u06-59135a1-85f453e8a18d18c0/index.md) - [R5U06-59314A1](https://hypher.com.cn/products/model/r5u06-59314a1-b54075606aefabb2/index.md) - [026-62269-H](https://hypher.com.cn/products/model/026-62269-h-951e35cdf9721e66/index.md) - [026-53552-0](https://hypher.com.cn/products/model/026-53552-0-4cbc77f3fd2de4d1/index.md) - [026-66607-H](https://hypher.com.cn/products/model/026-66607-h-87f97f146f6a74d1/index.md) ## 技术资料与 CAD - [CATALOGUE - Accessories for SAE Flange Valves](https://www.parker.com/content/dam/Parker-com/Literature/Industrial-Systems-Division-Europe/Catalogues/Industrial-Valves-UK/09/access09.pdf)：document - [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 - Pilot Operated Pressure Unloading Valve Series R5U](https://hypher.com.cn/library-assets/6124a89ee61dedcf1054bb6fd1827a14af19e165c68e812b4a01c56b76ecae10.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 - [Pilot-Operated Pressure Unloading Valve Catalog - R5U Series (North America)](https://www.parker.com/content/dam/Parker-com/Literature/hydraulic-valve-systems-division/hydraulicvalve/Catalog-sections-for-websphere/Sandwich-Valves/Catalog---Static-File/R5U.pdf)：document - [工业液压控制阀（下册）--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%8B%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/r5u-pilot-operated-pressure-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/r5u-pilot-operated-pressure-unloading-valve)；[联系技术支持](https://hypher.com.cn/contact)