5159S-2MP-250 CIRCLE SEAL CONTROLS Relief Valve

Review CIRCLE SEAL CONTROLS Relief Valve

The Circle Seal 5159S-2MP-250 Relief Valve is a versatile and reliable solution for maintaining safe pressure levels in various industrial applications. This valve is a pneumatically operated, direct-acting, spring-loaded relief valve, which means it uses compressed air to open and close, making it an excellent choice for systems that utilize air as an actuating medium.

The body of the 5159S-2MP-250 Relief Valve is constructed from ductile iron, ensuring both durability and corrosion resistance. The valve is available in sizes ranging from 1/2" to 2", with a maximum pressure rating of 300 psi (21 bar). This makes it suitable for a wide range of applications where regulating pressure is crucial.

The valve features a quick-opening, high-performance disc that is designed to minimize pressure drop when the valve opens. The disc is made from hardened stainless steel, ensuring long-lasting performance even in demanding environments. The valve also includes a spring-loaded, pilot-operated design that ensures a consistent and reliable opening force.

The 5159S-2MP-250 Relief Valve is equipped with an adjustable spring, allowing users to easily set the pressure at which the valve will open. The valve also includes a bleed port, which enables quick and easy purging of air from the system, ensuring proper sealing and optimal performance.

The valve is designed with a threaded connection for easy installation and maintenance. It is also available in various configurations, including both right-hand and left-hand inlet and outlet connections, to accommodate different system layouts.

In summary, the Circle Seal 5159S-2MP-250 Relief Valve is a robust and dependable pressure relief solution that is suitable for a wide range of industrial applications. Its durable construction, quick-opening design, and easy-to-adjust spring make it a top choice for maintaining safe and efficient pressure levels in your system.

The Circle Seal 5159S-2MP-250 relief valve is a commonly used pneumatic accessory for controlling air pressure in industrial applications. Here are some pros and cons of buying this particular model:

1. Durable Construction: This relief valve is made of brass, making it resistant to corrosion and suitable for harsh operating conditions.

2. Easy Installation: It comes with a standard NPT thread connection and can be easily installed in most compressed air systems.

3. Adjustable Spring: The adjustable spring allows users to set the desired pressure release point, providing precise pressure control.

4. Large Flow Capacity: With a flow capacity of 250 SCFM, this relief valve can handle high air volume applications.

5. Leak-Free Operation: The valve's sealed design prevents air leakage, ensuring efficient operation and reducing compressed air waste.

1. Cost: The Circle Seal 5159S-2MP-250 relief valve is more expensive compared to some other models in the market.

2. Requires Regular Maintenance: Due to its brass construction, this relief valve may require more frequent maintenance to prevent corrosion and ensure proper function.

3. Limited Operating Pressure Range: The maximum operating pressure for this relief valve is 150 psi, which may not be suitable for all applications.

In conclusion, the Circle Seal 5159S-2MP-250 relief valve is a reliable and durable option for applications requiring high flow capacity and precise pressure control. However, its higher cost and limited operating pressure range may be drawbacks for some users. Ultimately, the decision to buy this relief valve depends on the specific requirements of your application and budget.

If you're looking for a cost-effective alternative with a wider operating pressure range, you may want to consider other models with different materials, such as stainless steel or aluminum. However, keep in mind that these alternatives may not offer the same level of flow capacity and precision as the Circle Seal 5159S-2MP-250 relief valve.

Details:

Scuffs and surface rust are present, please review the pictures, they of actual item shipped with economy shipping. This is a new old stock item without the original packaging. Circle Seal 5159S-2MP-250 relief valve.

specifications genpurrelays:

• brand: Circle Seal Controls
• mpn: 5159s-2mp-250
• part type: Valve Control

shipping genpurrelays:

• class: economy
• type: fixed
• service: economy
• transit: 3-6 days

seller genpurrelays:

• city: burbank, illinois
• # reviews: 689
• rating: 99.1%

general genpurrelays:

• category: Business & Industrial > Electrical Equipment Supplies > General Purpose Relays

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offer genpurrelays:

• sold #: 16
• options: ship-to-home
• availability: in stock
• best offers: true
• in stock #: 1
• price: $165.75
• item condition: New – Open box
• started: january 10, 2026

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• method: money back
• time: 30 days
• paid by: seller
• policy: returns accepted