SUN Series Direct-Acting Relief Valve

SUN Series Direct-Acting Relief Valve

7 month ago

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 4 year year

Product details

1. Product Overview

The SUN Series Direct-Acting Relief Valve is a hydraulic control component featuring a spring-loaded poppet (or ball) valve structure. It is characterized by rapid response, simple design, and high reliability. Primarily used in hydraulic systems to limit pressure, prevent overloading, and release excess pressure when necessary, it ensures system safety and stability.

2. Key Features

• Rapid Response: Direct-acting design enables immediate reaction to pressure changes, effectively preventing system overpressure.

• Simple Structure: Minimized internal components reduce failure points and enhance reliability.

• Easy Adjustment: Spring preload can be adjusted to conveniently modify the valve's set pressure.

• Excellent Sealing: High-quality sealing materials ensure reliable performance even under high pressure.

• Wear-Resistant: Heat-treated internal components provide wear and fatigue resistance, extending service life.

3. Technical Specifications

• Maximum Operating Pressure: Typically up to350 bar(varies by model), meeting most hydraulic system requirements.

• Flow Range: From tens of L/min to hundreds of L/min, depending on the model.

• Response Time: Extremely short, usually within2 ms, ensuring rapid pressure stabilization.

• Temperature Range: Wide applicability, typically-40°C to +120°C(or higher, depending on sealing materials and lubricant selection).

• Internal Leakage: Extremely low, typically below2 drops/minute, reducing energy loss and system contamination.

4. Applications

The SUN Series Direct-Acting Relief Valve is widely used in hydraulic systems requiring precise pressure control, including:

• Construction Machinery:

• Excavators, loaders, cranes, and other equipment to limit system pressure and protect against damage.

• Industrial Hydraulics:

• Machine tools, injection molding machines, paper machinery, etc., to stabilize system pressure and enhance operational reliability.

• Marine Industry:

• Steering gear systems, hydraulic lifting equipment on ships to ensure safe pressure ranges.

• Aerospace:

• Aircraft hydraulic power-assist systems, aviation engine fuel control systems for precise pressure regulation and flight safety.

5. Model Selection & Sizing

The SUN Series offers multiple models to suit diverse applications. When selecting a valve, consider:

• Operating Pressure: Choose a model compatible with the system's maximum pressure.

• Flow Requirements: Select the appropriate port size based on system flow rate.

• Mounting Style: Options include threaded cartridge-style, manifold-mounted, or flange-connected designs to fit installation space and requirements.

• Media Compatibility: Account for hydraulic fluid viscosity, temperature, and other properties affecting valve performance.

6. Maintenance & Care

To ensure optimal performance and extend the lifespan of the SUN Series Direct-Acting Relief Valve:

• Regular Inspections: Check for external damage and sealing integrity to prevent leaks.

• Cleaning: Periodically clean the valve surface to remove dirt and oil residue, keeping it dry and clean.

• Seal Replacement: Replace seals as needed based on wear or operating conditions to maintain sealing performance.

• Avoid Overloading: Do not operate the valve beyond its rated pressure or flow capacity to prevent damage.

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 Audited supplier

4 year

Address: Ningbo, China

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

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