NK300S-100UP

The Resideo Braukmann NK300S-100UP Boiler Combination Valve Box is a high-performance and reliable solution for managing the water supply to your heating system. This valve box is specifically designed for use with the Resideo Braukmann NK300S boiler and is suitable for installations with a water pressure up to 10 bar.

The NK300S-100UP Boiler Combination Valve Box is made from high-quality materials, ensuring durability and long-lasting performance. It is constructed from brass and features a chrome-plated finish, which not only looks great but also provides excellent resistance to corrosion and wear.

The valve box includes several important features to ensure optimal system performance and user convenience. It comes with a built-in expansion vessel, which allows for the expansion and contraction of water caused by temperature changes. This helps to prevent damage to the system and ensures that it operates efficiently.

The NK300S-100UP Boiler Combination Valve Box also includes a pressure relief valve, which automatically releases excess pressure if the system pressure gets too high. This safety feature helps to protect against potential damage to the system and ensures the safety of users and property.

The valve box is designed for easy installation and maintenance. It includes a clear pressure gauge, which allows you to easily monitor the system pressure at a glance. The valve box also includes drain taps, making it simple to drain the system for maintenance or repairs.

In summary, the Resideo Braukmann NK300S-100UP Boiler Combination Valve Box is a high-quality and reliable solution for managing the water supply to your heating system. It is specifically designed for use with the Resideo Braukmann NK300S boiler and is suitable for installations with a water pressure up to 10 bar. The valve box includes several important features, such as a built-in expansion vessel, pressure relief valve, clear pressure gauge, and drain taps, making it a convenient and effective solution for maintaining the performance and safety of your heating system.

The Resideo Braukmann NK300S-100UP boiler combination valve box is a crucial component in heating systems, as it integrates several functions, including the expansion vessel, pressure relief valve, and filling loop, into a single unit. Here are some pros and cons that may help you make an informed decision about purchasing this valve box.

1. Space-saving design: This valve box combines multiple functions into one, reducing the number of components required and saving space in your heating system.

2. Easy installation: The NK300S-100UP comes with pre-installed components, making the installation process more straightforward and quicker compared to installing individual components.

3. Improved system safety: By having a pressure relief valve and an expansion vessel in one unit, you can ensure that your heating system is better protected against potential safety issues, such as overpressure or vacuum conditions.

4. Compatibility with various heating systems: This valve box is suitable for use with both open-vented and sealed heating systems, making it a versatile option for various installation scenarios.

1. Limited compatibility with specific boilers: Ensure that the NK300S-100UP is compatible with your specific boiler make and model before purchasing to avoid any potential compatibility issues.

2. Higher upfront cost: While the space-saving design and ease of installation may offer long-term benefits, the initial investment for this valve box may be higher compared to purchasing individual components separately.

3. Limited availability: The NK300S-100UP may not be as readily available as individual components, which could result in longer lead times for installation projects.

The Resideo Braukmann NK300S-100UP boiler combination valve box offers several advantages, including space savings, easier installation, and improved system safety. However, it may have some limitations, such as specific compatibility requirements, a higher upfront cost, and limited availability. Ultimately, considering the specific needs and constraints of your heating system project, the benefits of this combination valve box may outweigh the potential drawbacks. If you have the resources and the project allows, it could be a worthwhile investment for a more efficient and safer heating system.

Details:

Offered with a very fair. This is an open box but never installed or used boiler valve. Resideo Braukmann boiler feed combination valve part # NK300S-100UP.

specifications centrafurn:

• brand: Resideo Braukmann
• mpn: Nk300s-100up
• model: Resideo Braukmann Nk300s-100up
• type: Boiler Feed Combination Valve
• country of origin: Germany
• upc: 085267345163

general centrafurn:

• category: Home & Garden > Heating, Air > Cooling Systems > Central Furnaces

seller centrafurn:

• # reviews: 3362
• city: circle pines, minnesota
• rating: 100.0%

offer centrafurn:

• availability: in stock
• options: ship-to-home
• in stock #: 5
• sold #: 13
• started: march 8, 2026
• prices: $115.00–$315.66
• item condition:
  • Open box
  • New
  • New – Open box

payments centrafurn:

• other
• credit card: diners-club
• wallet: paypal

returns centrafurn:

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

shipping centrafurn:

• type: calculated
• carrier: usps
• service: usps ground advantage
• class: standard
• transit: 3-6 days

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