Hydraulic cartridge valve relief valve

3 week ago

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

3 year

Product details

hydraulic cartridge valve relief valves:

Product Specifications

1. Type

• Direct-acting, poppet-typehydraulic relief valve designed for pressure limiting in hydraulic circuits.

• Material: Aluminum or steel with corrosion-protected design.

2. Technical Parameters

• Pressure Range: 50-4500 psi (3.5-315 bar), with adjustable settings via rotary knobs, sleeves, or lockable knobs.

• Flow Rate: Up to 40 L/min (depending on model and configuration).

• Temperature Range: -40°C to +120°C (-40°F to +250°F), suitable for high-temperature fluids.

• Connection: Threaded or subplate mounting (ISO 5781 standard).

3. Adjustment Methods

• Rotary Knob: Simple manual adjustment.

• Sleeve with Hexagon and Protective Cap: Tool-assisted adjustment.

• Lockable Rotary Knob with Scale: Adjustable and lockable for precise settings.

Applications

• Industrial Equipment:

• Transmission and engine control systems.

• Construction and road-building equipment.

• Agricultural and gardening machinery.

• Forestry and resource management equipment.

• Waste disposal systems.

• Hydraulic Circuit Protection:

• Acts as a pressure-limiting device to prevent system overload.

• Maintains system pressure stability by relieving excess pressure.

Functional Features

1. Pressure Control:

• Direct-acting Design: Pressure oil directly acts on the valve spool, balancing against spring force to control valve opening and closing.

• Pilot-operated Design: Suitable for high-pressure systems, using a pilot valve to control the main valve for pressure regulation.

2. Rapid Response:

• Direct-acting: Quick response, ideal for low-pressure systems.

• Pilot-operated: Efficient for high-pressure, large-flow systems.

3. Modular Design:

• Easy integration into hydraulic systems.

• Customizable oil circuit designs for specific applications.

4. Corrosion Resistance:

• Constructed with materials to withstand harsh environments.

Working Principle

1. Direct-acting Relief Valve:

• Pressure oil directly acts on the valve spool, overcoming spring force to open the valve and relieve pressure.

• As system pressure increases, the spool lifts, increasing the valve opening and flow rate to maintain a stable pressure.

2. Pilot-operated Relief Valve:

• A pilot valve controls the main valve. When system pressure exceeds the pilot valve setting, the pilot valve opens, allowing pressure oil to act on the main valve spool and open it.

• This design is suitable for high-pressure systems, providing precise pressure control and reducing shock.

Hydraulic threaded cartridge valves are a kind of compact hydraulic control components, which are installed in valve blocks or manifold blocks by threads, and have the characteristics of simple structure, flexible installation and convenient maintenance. It has a wide range of application scenarios, especially in hydraulic systems that require high integration, high performance and reliability.
Hydraulic threaded cartridge valve is the "core neuron" of modern hydraulic system, and its application ranges from field to deep ocean, covering almost all fields that need precise power control. Choosing the suitable cartridge valve scheme can significantly improve the performance, reliability and energy efficiency ratio of the equipment.

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

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3 year

Main Product: hydraulic motor, gear box, hydraulic pump, hydraulic valve , hydraulic winch, hydraulic system

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