VMP & VMDR90 Series Relief Valves
Adjustable hydraulic relief valves designed to protect mobile and industrial hydraulic circuits against excessive system pressure. The range includes VMP models with multiple BSPP port sizes and VMDR90 models rated for flow up to 80 L/min and pressure up to 350 bar.
Description:
The VMP and VMDR90 series relief valves are designed to limit excessive hydraulic system pressure and help protect pumps, actuators and other circuit components.
The VMP series is available with G⅜, G½ and G¾ BSPP ports, with different body dimensions for system installation requirements. The VMDR90 series supports flow rates up to 80 L/min and maximum pressure up to 350 bar.
These adjustable relief valves are suitable for compact mobile machinery, industrial hydraulic systems and other equipment requiring reliable pressure limitation and circuit protection.
Key Specifications
• Product Type: Adjustable hydraulic relief valve
• Series: VMP and VMDR90
• VMP Port Options: G⅜, G½ and G¾ BSPP
• VMDR90 Maximum Flow: 80 L/min (20 US gpm)
• VMDR90 Maximum Pressure: 350 bar (5000 PSI)
• VMDR90 Fluid Viscosity: 10–500 mm²/s
• VMDR90 Recommended Filtration: ISO 16/13
• VMDR90 Fluid Temperature: −20°C to +80°C
• VMDR90 Ambient Temperature: −20°C to +50°C
Series Options
Compare the VMP and VMDR90 relief valve series according to port size, installation requirements, flow capacity and system pressure.
VMP Series
• Adjustable hydraulic relief valve series
• Available with G⅜, G½ and G¾ BSPP ports
• Three body sizes for different installation requirements
• Select according to port size and dimensional requirements
VMDR90 Series
• Adjustable hydraulic relief valve series
• Maximum flow: 80 L/min (20 US gpm)
• Maximum pressure: 350 bar (5000 PSI)
• Available codes: VMDR90120 and VMDR90340
VMP Port & Dimension Options
Compare the three available VMP port sizes and principal installation dimensions. Refer to the PDF datasheet for the complete dimensional drawing.
VMP Series
VMP-G3/8
• P–T Port Size: G3/8 BSPP
• Dimension L: 72 mm
• Overall Length L1: 134 mm
• Body Size H × S: 40 × 40 mm
VMP-G1/2
• P–T Port Size: G1/2 BSPP
• Dimension L: 77 mm
• Overall Length L1: 139 mm
• Body Size H × S: 45 × 45 mm
VMP-G3/4
• P–T Port Size: G3/4 BSPP
• Dimension L: 92 mm
• Overall Length L1: 154 mm
• Body Size H × S: 50 × 50 mm
VMDR90 Technical Performance
Review the main performance ratings, model weights and operating conditions for the VMDR90 relief valve series.
Maximum Flow
• Maximum flow: 80 L/min
• Equivalent flow: 20 US gpm
• Applies to the listed VMDR90 models
Maximum Pressure
• Maximum pressure: 350 bar
• Equivalent pressure: 5000 PSI
• Confirm the required relief setting before ordering
Model Codes & Weight
• VMDR90120: 0.67 kg (1.5 lb)
• VMDR90340: 1.0 kg (2.2 lb)
• Confirm the required model code and connection size
Operating Conditions
• Fluid viscosity: 10–500 mm²/s
• Recommended filtration: ISO 16/13
• Fluid temperature: −20°C to +80°C
• Ambient temperature: −20°C to +50°C
How to Select a VMP or VMDR90 Relief Valve
Confirm the valve series, required pressure and flow, port size, installation dimensions and operating conditions before selection.
Select the Valve Series
• VMP: Select mainly by BSPP port size and body dimensions
• VMDR90: Select for applications requiring defined flow and pressure ratings
• Confirm the existing valve model when replacing a unit
Confirm Pressure & Flow
• Required system pressure
• Required relief valve setting
• Maximum circuit flow
• Pressure spike and overload conditions
Confirm Port & Installation
• Required P–T port size
• BSPP thread specification
• Available installation space
• Existing mounting and body dimensions
Confirm Operating Conditions
• Hydraulic fluid and viscosity
• Required filtration level
• Fluid and ambient temperature
• Machine application and duty cycle
For replacement or new-system selection, please provide the existing valve model, port size, required pressure setting, maximum flow, installation dimensions and machine application.
Where available, please include a clear nameplate photo and dimensional drawing.
Designed for Reliable Hydraulic Pressure Protection
Adjustable Pressure Protection
Helps limit excessive hydraulic system pressure and protect pumps, actuators and other circuit components from overload conditions.
Multiple VMP Port Sizes
VMP models are available with G3/8, G1/2 and G3/4 BSPP ports for different connection and installation requirements.
Defined VMDR90 Performance
VMDR90 models support flow up to 80 L/min and maximum pressure up to 350 bar for demanding hydraulic pressure-control circuits.
OEM & Replacement Support
Model, port size, pressure, flow and installation dimensions can be confirmed for new systems and replacement applications.
Applications
Compact Mobile Machinery
Industrial Hydraulic Systems
Agricultural & Construction Equipment
Need Help Selecting a Relief Valve?
• Existing valve model
• Required pressure setting
• Maximum flow
• Port size and thread type
• Installation dimensions
• Machine application
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