Pilot-operated relief valve MRPEE series

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Pilot-operated relief valve MRPEE series

Product catalog summary

Specifications

Operating Pressure: 350 BAR
Flow: 95 L/min
Response Time: 2 ms
Internal Leakage: 30 ml/min max at 70 bar
Temperature Range: -40°C to +120°C (-40°F to +250°F)
Cavity: T-10A
Fluids: Mineral-based fluids with viscosities of 7.4 to 420 cSt

Features

Main stage orifice is protected by a stainless steel screen.
Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
Will accept maximum pressure at port 2; suitable for use in cross port relief circuits. Consider spool leakage if used in such circuits.

Operation

Fast-acting, pilot-operated, balanced piston relief cartridges are normally closed, pressure-limiting valves used to protect hydraulic components from pressure transients. They open and close quickly, sacrificing smoothness. When the pressure at the inlet (port 1) reaches the valve setting, the valve opens to the tank (port 2), throttling flow to limit pressure rise. These valves have low pressure rise versus flow and respond quickly.

Installation Dimensions

Details on installation dimensions and torque specifications are provided, including maximum torque values for different hex sizes.

Order Type

Pressure Range: Various options from 25 to 6000 psi with preset values.
Seal Kits: Options include Buna N and Viton.
Body Material: Options include 6061-T6 aluminum and steel, with respective pressure ratings.
Body Porting: Options include SAE and NPT standards, with other porting available.
Adjustment: Options include screw adjust and handwheel adjust.

Application Area

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 MRPEE 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 350BAR ·流量 Flow 95L/min ·额定响应时间 Response Time - Typical 2ms ·内泄漏 Internal Leakage 30ml/min.max.at 70bar ·温度 Temperature -40°C to +120°(-40°F to+250°F) ·插孔 Cavity T-10A ·流体 Fluids Mineral-based fluids with viscosities of 7.4 to 420 cSt. 产品特性 Features 工作 Operation 快速动作，先导控制式，平衡滑阀结构溢流阀为常闭压力调节阀，常用来保护液压元件，以防止其受瞬态压力的冲击。阀快速开启和关闭是在牺牲平稳性基础上获得。当压力在进口（口1）达到阀的设定值，阀开始向油箱（口2）溢流，节流以限制压力上升。此类阀压力波动随流量变化小并且响应速度快。 Fast-acting, pilot-operated, balanced piston relief cartridges are normally closed, pressure-limiting Valve used to protect hydraulics components from pressure transients. Fast opening and closing is gained at the expense of smoothness. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to limit the pressure rise. These Valves have low pressure rise vs. flow and are very fast. ·主级的阻尼孔被不锈钢滤网保护。 Main stage orifice is protected b

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Pilot-operated relief valve MRPEE series-2

安装尺寸 INSTALLATION DIMENSIONS HEX 14.3 扭矩TORQUE 10Nm max. 压力降 PRESSURE DROP psi(bar) 压力降 PRESSURE DROP psi(bar) 压力-流量性能曲线 Performance Curve Pressure Drop vs.Flow 订购型号 Order Type Ⅰ Ⅱ Ⅲ Ⅰ. 调节方式 adjustment Ⅱ. 调压范围 Pressure Range L=螺钉调整 Screw Adjust A=100-3000psi(7-210bar) K=手轮调整 Handwheel Adjust Preset:1000psi(70bar) B=50-1500psi(3.5-105bar) Preset:1000psi(70bar) C=150-6000psi(10.5-420bar) Preset:1000psi(70bar) D=25-800psi(1.7-55bar) Preset:400psi(28bar) E=25-400psi(1.7-28bar) Preset:200psi(14bar) W=150-4500psi(10.5-315bar) Preset:1000psi(70bar) H=30-3000psi(2-210bar) Preset:1000psi(70bar)...

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Pilot-operated relief valve MRPEE 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

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