NUPRO SS-4P4T2 Purge Valve

( Brand: Nupro ), ( Manufacturer Part Number: SS-4P4T2 ), ( Part Type: Valve )

Review NUPRO Used Purge Valve

The **Nupro SS-4P4T2 Purge Valve** is a high-performance, stainless steel ball valve engineered for precision control and reliability in demanding industrial applications, particularly within vacuum, semiconductor, and analytical systems. Constructed from **316L stainless steel**, this valve is designed to withstand extreme environments, offering exceptional corrosion resistance, durability, and thermal stability across a wide temperature range from cryogenic levels up to 400 C (752 F). Its **4-inch (100mm) nominal size** makes it ideal for medium to large-scale gas handling, ensuring efficient flow regulation while minimizing dead volume and contamination risks.

The **SS-4P4T2** features a **pneumatic or manual actuation system**, allowing for seamless integration into automated or manual process control setups. The valve s **Teflon -coated ball and seat** combination ensures ultra-low outgassing and superior sealing performance, making it perfect for applications requiring ultra-high vacuum (UHV) or cleanroom environments. The **four-port design** enables versatile piping configurations, accommodating both inlet and outlet connections while maintaining minimal pressure drop and maximum flow efficiency. Additionally, the valve s **vacuum-rated construction** and **brazed or welded connections** (depending on the model variant) provide leak-tight integrity, critical for maintaining system purity in sensitive applications like semiconductor manufacturing, mass spectrometry, or gas chromatography.

Beyond its robust mechanical design, the **Nupro SS-4P4T2** incorporates advanced features such as **fail-safe positioning**, **quick-disconnect fittings**, and **modular mounting options**, enhancing ease of installation and maintenance. Its **low-maintenance construction** reduces downtime, while the **compatibility with a variety of gases including corrosive, reactive, or cryogenic media expands its applicability across diverse industries**. Whether used for **purge gas control, leak testing, or process isolation**, this valve delivers uncompromising performance, ensuring consistent operation and long-term reliability in the most exacting industrial settings.

### Pros and Cons of buying a **Nupro SS-4P4T2 Purge Valve**

1. **High-Quality Construction** The valve is made from **316 stainless steel**, which is corrosion-resistant, durable, and suitable for harsh industrial environments, including chemical processing, pharmaceuticals, and food and beverage applications.

2. **Precision Engineering** The **SS-4P4T2** is designed for **sanitary and hygienic applications**, ensuring minimal dead legs and easy cleaning. This makes it ideal for industries where contamination control is critical.

3. **Versatile Connectivity** It features **tri-clamp (sanitary) connections**, allowing for easy integration into existing piping systems without the need for additional fittings in many cases.

4. **Adjustable Flow Control** The valve includes a **purge function**, allowing controlled release of gases or liquids, which is useful in applications requiring venting or pressure relief.

5. **Compatibility with Automation** Many versions of Nupro valves can be paired with **pneumatic or electric actuators**, making them suitable for automated systems where remote operation is required.

6. **Wide Temperature and Pressure Range** The valve can handle a broad range of temperatures (typically **-20 C to 150 C / -4 F to 302 F**) and pressures (depending on configuration), making it adaptable to various process conditions.

7. **Easy Maintenance** The design allows for straightforward disassembly and cleaning, reducing downtime for servicing.

8. **Regulatory Compliance** Nupro valves are often **3-A Sanitary Standards compliant**, which is essential for industries like pharmaceuticals and food processing that require strict hygiene regulations.

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1. **Higher Upfront Cost** Compared to standard industrial valves, Nupro s sanitary-grade valves are more expensive due to their precision manufacturing and material quality.

2. **Specialized Installation Requirements** Since it uses **tri-clamp connections**, it may not be compatible with existing systems that rely on threaded or flanged fittings, requiring additional adapters or modifications.

3. **Limited Availability of Spare Parts** While Nupro is a reputable brand, finding replacement gaskets, seals, or O-rings may be more challenging than with more common valve brands.

4. **Potential for Leakage Over Time** Like any valve, the **seals and gaskets** can degrade with prolonged use, especially if exposed to aggressive chemicals or extreme temperatures, requiring periodic inspection and replacement.

5. **Training Required for Proper Use** Operators may need training to ensure correct installation, calibration, and maintenance, particularly in automated systems where misconfiguration could lead to inefficiencies or failures.

6. **Not Ideal for High-Pressure Extreme Applications** While it handles moderate pressures well, extremely high-pressure systems may require specialized variants or additional reinforcement.

7. **Potential for Contamination Risks** If not properly cleaned or maintained, the valve s internal surfaces could harbor bacteria or residues, posing risks in sterile environments like pharmaceutical manufacturing.

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The **Nupro SS-4P4T2 Purge Valve** is an excellent choice for **sanitary, high-purity, and hygienic applications** where precision, durability, and compliance with strict industry standards are critical. Its stainless steel construction, adjustable purge function, and compatibility with automated systems make it highly versatile for industries like pharmaceuticals, food and beverage, and chemical processing.

However, the **higher cost, specialized installation needs, and maintenance requirements** may make it less suitable for general industrial applications where budget constraints or simpler valve designs would suffice. If your application demands **reliability, cleanliness, and long-term performance**, this valve is a strong investment. If cost or compatibility is a major concern, alternatives like standard industrial valves may be more practical.

- You operate in a **pharmaceutical, food/beverage, or chemical processing environment** where hygiene and contamination control are paramount.

- Your system requires **precise flow control, easy cleaning, and compatibility with sanitary fittings**.

- You are willing to invest in a **high-quality, long-lasting valve** that reduces downtime and maintenance headaches.

- Your budget is tight and you can use a **standard industrial valve** with similar functionality.

- Your system does not require **sanitary-grade connections** and threaded or flanged valves would suffice.

- You need a valve for **extremely high-pressure applications** where specialized variants are necessary.

For most **sanitary process applications**, the **Nupro SS-4P4T2 is a reliable and well-engineered choice**, justifying its cost with superior performance and longevity.

Details:

Buyer pays return shipping. LOCATION: BP I-14. Lego guys not include din the sale. SS-4P4T2 NUPRO USED Purge has not been tested.

part #: ss4p4t2 prices

• $9.00-$37.00

specifications valvesplumbing:

• brand: Nupro
• mpn: Ss-4p4t2
• part type: Valve

payments valvesplumbing:

• wallet: Apple-pay
• other
• credit card: Visa

offer valvesplumbing:

• started: March 26, 2026
• quantity: 1
• sold: 0
• options: Ship-to-home
• best offers: True
• availability: In Stock

seller valvesplumbing:

• city: Chagrin Falls, Ohio
• # reviews: 1186
• rating: 100.0%

returns valvesplumbing:

• policy: No Returns

general valvesplumbing:

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

shipping valvesplumbing:

• class: Standard, Expedited
• transit: 4-8 Days
• service: USPS Ground Advantage, USPS Priority Mail
• type: Calculated
• cost: $6.09
• carrier: USPS

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