# 出口压力调节阀 - A4A系列 > A4A 出口压力调节阀用于控制阀后压力。每一款调节阀都可以使用扩展功能导阀使一个阀体具备多个控制功能。 所属技术：流体连接 ## 系列介绍 A4A系列出口压力调节阀为紧凑厚实的、先导控制的产品，具备优异的功能。其控制出口压力，在阀出口压力升高关闭而在出口压力降低时开大。如果有不受控制的支管路注入阀后管路，此压力调节阀将不能维持设定压力。此阀的功能是通过调节制冷剂流量维持阀后压力在设定值，不管负荷如何波动。 市场： • 工业制冷 • 商业制冷 特性及益处： • 先导式可调阀芯实现精确控制 • 适用于所有常用制冷剂及对应冷冻油 • 28 bar (406 psig)设计压力（MRP） • 优异的模块化设计 • SW\\FPT\\ODS法兰 • 可更换零部件 • 易于维护 • 可选直连过滤器 • 多种控制功能，通过使用模块及组件实现 • 不锈钢膜片 • 镀铬阀座 • 手动开启阀杆 应用： • 根据各种不同的阀件组合，其应用包括但不限于： • 压缩机电机过载保护，热气旁通容量控制，液体管路压力控制，启动时吸气端防止真空，防止吸气管压力上升，热气融霜控制 ## 技术参数 | 参数 | 值 | 单位 | | --- | --- | --- | | 型号 | 请根据零件号区分产品 | | | 产品类型 | A4A0, A4A0B, A4A0BS, A4A0E, A4A0ES, A4A0M, A4A0MS, A4A0P, A4A0PS, A4A0S, A4A0Z, A4A0EP, A4A0ESX, A4A0SX, A4W0E, A4W0ES, A4A0B, A4A0BS, A4A0E, A4A0ES, A4A0M, A4A0MS, A4A0P, A4A0PS, A4A0S, A4A0Z, A4A0EP, A4A0ESX, A4A0SX, A4W0E, A4W0ES | | | 最低运行温度 | '-45 或 -50 °C, -50 °C, -50 或 -60 °F, -60 °F | | | 最高运行温度 | 105 °C, 220 °F | | | 最大运行压力 | 27.6 或 28 bar, 28 bar, 400 或 406 psig, 406 psig | | | 阀体材料 | 灰铁、球墨铸铁、铸钢, Ductlie Iron, Cast Steel | | | 流量系数 | 1.0 至 310 Kv, 1.2 至 360 Cv | | | 压力调节器类型 | 请根据压力调节阀参数区分产品 | | | 额定压力 | 5.2 to 19.3bar or 500mm Hg to 8.3 bar, 500 mm-Hg to 8.3 bar, 75 至 280psig 或 20" Hg 至 120bar psig, 20 inch-Hg to 120 bar | | | 端口尺寸 | 20 至 150 mm, 3/4" 至 6" inch | | | 容量塞类型 | 全容量、50%容量、35%容量、17%容量、N/A | | | 压力设定点 | 1.0 至 11.4 bar, 15 至 165 psig | | | 法兰面类型 | FPT、ODS、SW、 WN、无法兰, ODS, Socket Weld, No Flange, Weld Neck | | | 连接尺寸 | 无 或 3/4" 到 3-1/8", 3/4 to 3-1/8 inch | | | 线圈类型 | 请根据线圈型式区分产品 | | | 电机类型 | 无，马达组件- 120 V 50/60 Hz~4-20 mA 标准 CAM, 马达组件- 24V 50/60 Hz~0-135 Ohm 标准 CAM, 安装部件- 标准 CAM, N/A, Motor Assembly- 120V 50/60 Hz 4-20 mA Standard CAM, Motor Assembly- 24V 50/60 Hz 0-135 Ohm Standard CAM, Mounting Kit- Standard CAM, n/a | | | 提升阀类型 | 带过滤器或不带过滤器, Without Strainer | | | 包括止回阀 | 无, 配 CK-4, N/A, With CK-4, n/a | | | 阀门材料 | 标准阀体材质或满足PED材质, Meets Pressure Equipment Directive (PED) | | | 镀层类型 | 无镀层 | | ## 型号入口（首批） - 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[Product Bulletin 23-06B - Regulators A4AS, A4AB, A4AD, A4AZ](https://hypher.com.cn/library-assets/ac3653658a850f5dfb0fb157b8b737a94376a7e1c38258e6928b810344889a69.pdf)：document - [Product Bulletin 23-11 - Regulator A4AM Parker](https://hypher.com.cn/library-assets/e1b423f9b03cfcc86a59928706bb074f4f3d5c40b0d6a2227cc71e8b758be42a.pdf)：document - [查看目录](https://hypher.com.cn/library-assets/e7b65e145a65c3276170c6e1c5a90f3adda4598ee0333aa32f04854a21ab5926.pdf)：document 资料来源：[原始系列资料](https://ph.parker.com/cn/zh/product-list/adaptomode-outlet-regulators-a4a-series) 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/fluid-connectors/adaptomode-outlet-regulators-a4a-series)；[联系技术支持](https://hypher.com.cn/contact)