Pilot-operated relief valve MRAH101-S series

1 / 3 PagesView full catalog

Pilot-operated relief valve MRAH101-S series

Product catalog summary

Technical Specifications

Operating Pressure: 380 BAR
Flow: 113 L/min
Internal Leakage: 5 ml/min max to 80% of nominal setting
Temperature Range: -40°C to +120°C (-40°F to +250°F)
Cavity: 10-2
Fluids: Mineral-based fluids with viscosities of 7.4 to 420 cSt

Product Features

Hardened, precision ground parts for durability
Not suitable for load holding applications due to spool leakage
Accepts maximum pressure at port 2; suitable for cross port relief circuits
Industry common cavity

Operation

Pilot-operated, balanced-piston relief cartridges are normally closed pressure regulating valves. When the inlet pressure (port 1) reaches the valve setting, the valve opens to the tank (port 2), throttling flow to regulate pressure. These valves are accurate, have low pressure rise vs. flow, are smooth and quiet, and have moderate response speed.

Performance Curve

The performance curve illustrates the pressure drop versus flow rate, indicating the valve's efficiency and operational characteristics under varying conditions.

Installation Dimensions

Detailed dimensions and torque specifications are provided for proper installation, ensuring compatibility with various systems.

Order Type

Pressure Range: Options from 100-5000 psi with preset values
Seal Kits: Buna N or Viton
Body Material: 6061-T6 aluminum or steel
Body Porting: SAE and NPT options available

Application Areas

Transmission, engine, and powertrain control
Building and road construction equipment
Agricultural and garden machinery
Forestry and resource management equipment
Waste disposal equipment
Other professional mobile and industrial applications

Catalog excerpts

Pilot-operated relief valve MRAH101-S series-1

机能符号 Symbol 先导式溢流阀 Pilot-operated Relief Valves 技术参数 Specifications ·工作压力 Operating Pressure 380BAR ·流量 Flow 113L/min ·内泄漏 Internal Leakage 5ml/min.max.to 80% of norminal setting ·温度 Temperature -40°C to +120°(-40°F to+250°F) ·插孔 Cavity 10-2 ·流体 Fluids Mineral-based fluids with viscosities of 7.4 to 420 cSt. 产品特性 Features 压力降 PRESSURE DROP psi(bar) 压力达到阀设定值，阀开始向油箱（口2）溢流，节流以调节压力。此类阀压力调节精度高，压力波动随流量变化小，并且调节平稳，噪声小，响应速度适中。 Pilot-operated, balanced-piston relief cartridges are normally closed pressure regulating Valve. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to regulate the pressure. These Valves are accurate, have low pressure rise vs. flow, they are smooth and quiet, and are moderately fast. 压力-流量性能曲线 Performance Curve Pressure Drop vs.Flow ·硬化处理,零件耐久性强。 Hardened,precision ground parts for durability. ·因为滑阀的泄露,不适合使用在负载锁紧应用中。 Not suitable for use

Open the catalog to page 1

Pilot-operated relief valve MRAH101-S series-2

安装尺寸 INSTALLATION DIMENSIONS HEX 4.8 HEX 17.4 扭矩TORQUE 15Nm max. 订购型号 Order Type Ⅱ. 油封 Seal-Kits N=丁腈橡胶 Buna N V=氟橡胶 Viton Ⅲ. 阀块材质 BODY MATERIAL A=6061- T6铝耐压强度207Bar 6061-T6 aluminum alloy rated at 207Bar S=钢材耐压强度350Bar steel rated at 350Bar

Open the catalog to page 2

Pilot-operated relief valve MRAH101-S series-3

应用领域 AP P L I CATI ON ARE A · 传输、发动机和动力传动控制 Transmission, engine and powertrain control · 建筑和道路建设设备 Building and road construction equipment · 农业和园林机械 Agricultural and garden machinery · 林业和资源管理设备 Forestry and resource management equipment · 废弃物处理设备 Waste disposal

Open the catalog to page 3