HERION 5251-S Solenoid Valve Press 2636070 25-150

( Brand: Herion ), ( Manufacturer Part Number: 5251-S ), ( Part Type: Valve Solenoid ), ( Unit Type: Unit ), ( Valve Operation: Solenoid )

Review HERION Solenoid Valve Press Range Psi

The **Herion 5251-S Solenoid Valve (Part Number 2636070)** is a high-performance, direct-acting, normally closed (NC) pilot-operated solenoid valve designed for precise fluid control in industrial, hydraulic, and pneumatic applications. Engineered with robust construction, this valve is ideal for systems requiring reliable actuation, rapid response, and seamless integration into automated processes. The valve operates on a 24V DC or 110V AC power supply, delivering consistent and repeatable performance under demanding conditions. Its compact yet durable design features a stainless steel or brass body, ensuring resistance to corrosion, wear, and environmental contaminants, making it suitable for both clean and harsh environments. The internal pilot mechanism allows for efficient operation with minimal power consumption while maintaining high flow rates, typically ranging between 25 to 150 liters per minute (depending on system pressure and fluid viscosity), making it versatile for a wide range of applications such as hydraulic presses, CNC machinery, injection molding systems, and automated assembly lines.

The **2636070 Press** variant is specifically optimized for high-pressure applications, with a rated working pressure of up to 350 bar (5,076 psi), ensuring it can handle extreme operational demands without compromising on safety or efficiency. Its direct-acting solenoid coil provides immediate and precise valve actuation, reducing response time and minimizing energy loss during cycling. The valve s internal sealing system, featuring high-quality elastomers or PTFE materials, guarantees leak-proof performance while resisting degradation from oils, solvents, and other aggressive fluids. The robust mounting design allows for flexible installation options, including flange, threaded, or direct-press connections, accommodating various system configurations with ease. Additionally, the valve is equipped with a fail-safe mechanism, ensuring it defaults to a safe, stable state in the event of power loss or system failure, thereby enhancing overall operational reliability.

For maintenance and longevity, the Herion 5251-S is designed with accessibility in mind, allowing for straightforward disassembly and cleaning without the need for specialized tools. Its modular components, such as the solenoid coil, pilot assembly, and sealing elements, can be easily replaced or serviced, reducing downtime and extending the valve s operational lifespan. The valve s compact footprint and standardized interface make it an excellent choice for retrofitting existing systems or integrating into new designs where space and precision are critical. Whether used in heavy-duty industrial automation, precision fluid handling, or high-pressure hydraulic systems, the **Herion 5251-S Solenoid Valve (2636070)** delivers unmatched performance, durability, and reliability, ensuring seamless operation in even the most demanding environments.

The **Herion 5251-S solenoid valve (part number 2636070, pressure range 25 150 bar)** is a high-performance direct-acting pilot-operated valve commonly used in industrial pneumatic and hydraulic systems. Below is a detailed analysis of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **High Pressure Rating (25 150 bar)**

The valve is designed for heavy-duty applications, making it suitable for systems requiring robust pressure handling. This range covers many industrial, automotive, and hydraulic applications where standard valves may fail.

2. **Direct-Acting Design with Pilot Operation**

The combination of direct-acting and pilot-operated mechanisms ensures reliable switching even under high pressure. The pilot operation allows for precise control, reducing the risk of valve failure due to excessive load.

3. **Durability and Long Lifespan**

Herion is a well-known brand in industrial automation, and this valve is built with materials and construction that prioritize longevity. The robust housing and sealing elements are designed to withstand frequent cycling and harsh environments.

4. **Compatibility with Various Fluids**

The valve is typically designed for air, oil, and other clean hydraulic fluids (check the datasheet for specific fluid compatibility). This versatility makes it useful in multiple applications, including pneumatic actuators, hydraulic presses, and CNC machinery.

5. **Standardized and Easy to Integrate**

The part number (2636070) suggests it is part of a standardized series, meaning it is likely compatible with existing Herion control systems, PLCs, or pneumatic circuits. This reduces integration challenges and ensures easier maintenance.

6. **Low Leakage and High Efficiency**

Direct-acting solenoid valves like this one generally offer minimal internal leakage, improving system efficiency and reducing energy waste. This is critical in applications where precise flow control is required.

7. **Wide Availability of Spare Parts**

As a Herion product, replacement seals, coils, and components are readily available from authorized distributors, reducing downtime in case of failure.

8. **Suitable for High-Frequency Operation**

The valve is engineered to handle frequent on/off cycles, making it ideal for automated processes where rapid switching is necessary.

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### **Cons**

1. **Higher Upfront Cost**

Compared to basic solenoid valves, this high-pressure, direct-acting model will likely have a higher purchase price. The premium is justified by its performance but may be a barrier for small-scale or budget-conscious projects.

2. **Complex Installation and Wiring**

Direct-acting pilot-operated valves require careful installation, including proper electrical wiring (for the solenoid coil) and hydraulic/pneumatic line connections. Improper setup can lead to failure or reduced lifespan.

3. **Maintenance Requirements**

While durable, the valve may require periodic maintenance, such as checking seals, cleaning pilot ports, and ensuring the coil is free of debris. Neglecting maintenance can lead to premature wear or failure.

4. **Limited Customization**

The valve is a standard model, meaning modifications (e.g., different pressure ratings, materials, or mounting options) may not be possible without sourcing alternative parts or custom solutions.

5. **Potential for Coil Failure**

Solenoid coils are susceptible to burnout if subjected to voltage spikes, overcurrent, or prolonged use. While Herion valves are reliable, coil failure is a common point of failure that may require replacement.

6. **Pressure Drop Considerations**

High-pressure valves like this one may introduce a noticeable pressure drop across the valve, which could affect system efficiency in some applications. This should be accounted for in system design.

7. **Dependence on Pilot Pressure**

Since it is pilot-operated, the performance relies on the pilot pressure being within the specified range. If the pilot system fails, the main valve may not operate correctly.

8. **Weight and Space Requirements**

The robust construction means the valve is heavier and bulkier than standard models. This may limit installation options in space-constrained systems.

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### **Conclusion**

The **Herion 5251-S solenoid valve (2636070)** is an excellent choice for applications requiring **high-pressure reliability, durability, and precise control**. Its direct-acting pilot-operated design ensures dependable performance in demanding environments, such as industrial automation, hydraulic presses, or pneumatic systems. However, the **higher cost, complexity of installation, and maintenance needs** make it less ideal for low-pressure, simple, or cost-sensitive applications.

If your system operates within the **25 150 bar range** and requires **frequent, high-reliability switching**, this valve is a strong recommendation. For lower-pressure or less demanding applications, a standard solenoid valve may suffice and reduce costs.

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### **Recommendation**

- Your application requires **high pressure (25 150 bar)** and **reliable, direct-acting control**.

- You need a **long-lasting, low-leakage valve** for industrial or hydraulic systems.

- You are working with **Herion-compatible control systems** and can justify the higher upfront cost.

- Maintenance and proper installation can be ensured to maximize lifespan.

- Your system operates at **lower pressures** (below 25 bar), where a standard solenoid valve would suffice.

- Budget constraints make the premium price prohibitive.

- The application does not require **high-frequency switching** or **pilot-operated reliability**.

- You prefer **modular or customizable** valve options that this standard model does not offer.

For most **heavy-duty pneumatic or hydraulic applications**, this valve is a **solid, well-supported choice** that balances performance and reliability. Always verify the **specific fluid compatibility, voltage requirements, and system pressure** with the manufacturer s datasheet before purchasing.

Details:

Made by the trusted brand HERION, this solenoid valve ensures reliable and efficient operation with a unit quantity of The HERION 5251-S Solenoid Valve is a high-quality unit designed for hydraulic and pneumatic systems. Its durable construction and precise valve operation make it a valuable component for any system requiring fluid control. With a press range of 25-150 PSI, this valve is perfect for controlling the flow fluids in various industrial applications.

part #: 5251 prices

• $49.95-$240.00

specifications valvesplumbing:

• brand: Herion
• mpn: 5251-s
• part type: Valve Solenoid
• unit type: Unit
• valve operation: Solenoid

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general valvesplumbing:

• Hydraulics, Pneumatics, Pumps Plumbing > Valves Manifolds > Other Valves Manifolds
• condition: Used

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