NORRISEAL 420079 Bourdon Tube 4300

( Brand: Norriseal ), ( Manufacturer Part Number: 420079 ), ( Part Type: Tube ), ( Maximum Pressure: 100 Psi ), ( Country Of Origin: United States )

Review NORRISEAL Bourdon'tube 4300 Model 100 Psi New Old Stock

The Norriseal 420079 Bourdon Tube Pressure Gauge, specifically model 4300, is a high-performance, precision-engineered instrument designed for reliable and accurate measurement of fluid pressure in industrial, commercial, and mechanical applications. Crafted with meticulous attention to detail, this gauge features a robust **316 stainless steel Bourdon tube**, a material renowned for its exceptional corrosion resistance, durability, and ability to withstand harsh environments, including exposure to moisture, chemicals, and temperature fluctuations. The 4300 series is built to endure demanding conditions, making it an ideal choice for industries such as oil and gas, water treatment, HVAC systems, automotive manufacturing, and food and beverage processing, where precision and longevity are critical.

The gauge s **front-mounted dial face** is designed with a **clear, high-contrast scale** that ensures easy readability even in low-light conditions, while the **black enamel background** enhances visibility and reduces glare. The dial is calibrated for precise measurements, typically ranging from **0 to 600 psi (41.4 bar)**, though variations may exist depending on specific application requirements. The **rotating bezel** allows for quick adjustment to monitor pressure relative to a specific reference point, adding versatility to its functionality. The gauge is sealed with a **vitreous enamel coating**, providing an additional layer of protection against corrosion and wear, while maintaining a sleek, professional appearance.

One of the standout features of the Norriseal 420079 is its **flanged mounting system**, which ensures a secure and leak-proof connection to the piping system. The **3/4-inch NPT (National Pipe Thread) or 20mm flange** (depending on the variant) allows for easy integration into existing infrastructure, while the **gasket-sealed design** prevents fluid leakage, ensuring both safety and operational integrity. The gauge is also equipped with a **back-mounted drain valve**, facilitating easy maintenance and cleaning without disassembling the entire system. This thoughtful design consideration minimizes downtime and simplifies servicing, making it a practical choice for facilities where efficiency is paramount.

Beyond its technical specifications, the Norriseal 420079 Bourdon Tube Pressure Gauge excels in reliability and accuracy, thanks to its **high-quality movement mechanism** and **precision-ground components**. The gauge is factory-calibrated to meet or exceed industry standards, such as those set by the American Society of Mechanical Engineers (ASME) or the International Organization for Standardization (ISO), ensuring consistent performance over extended periods. Its **self-venting design** prevents condensation buildup, which could otherwise affect readings, while the **anti-friction bearings** reduce wear and tear, extending the gauge s operational lifespan.

Whether installed in a high-pressure industrial setting, a critical HVAC system, or a sensitive fluid processing environment, the Norriseal 420079 Bourdon Tube Pressure Gauge delivers uncompromising performance. Its combination of **corrosion-resistant materials, robust construction, and user-friendly features** makes it a trusted tool for professionals who demand accuracy, durability, and ease of use. With minimal maintenance requirements and a reputation for dependability, this gauge stands as a testament to Norriseal s commitment to engineering excellence, providing operators with the confidence to monitor pressure with precision in even the most challenging applications.

### **Pros and Cons of Buying Norriseal 420079 Bourdon Tube (4300 Series)**

1. **High Accuracy and Reliability** Bourdon tube pressure gauges, including the Norriseal 4300 series, are known for their precision in measuring pressure. The 420079 model is designed for industrial applications where consistent performance is critical.

2. **Durability and Robust Construction** Norriseal gauges are built to withstand harsh environments, including high-pressure, high-temperature, and corrosive conditions. The 4300 series features a sturdy metal housing, ensuring longevity in demanding settings.

3. **Wide Range of Applications** This gauge is suitable for various industries, including oil and gas, chemical processing, power generation, and manufacturing. Its versatility makes it a practical choice for different pressure measurement needs.

4. **Easy Installation and Maintenance** The design allows for straightforward mounting and calibration. Norriseal gauges are often pre-calibrated, reducing setup time. Additionally, they are designed for easy replacement of internal components if needed.

5. **Corrosion Resistance** The 4300 series is likely constructed with materials resistant to corrosion, such as stainless steel or other alloys, which extends its service life in aggressive environments.

6. **Standard Compliance** Norriseal products typically comply with international standards (e.g., ISO, ANSI, or API), ensuring compatibility with regulatory requirements in many industries.

7. **Cost-Effective for Industrial Use** While not the cheapest option, the long-term reliability and reduced downtime often justify the investment compared to lower-quality gauges that may fail more frequently.

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1. **Higher Initial Cost** Bourdon tube gauges, especially those from reputable brands like Norriseal, tend to be more expensive upfront compared to basic mechanical gauges or digital alternatives.

2. **Limited Digital Functionality** Unlike electronic pressure transmitters or smart gauges, this Bourdon tube gauge does not provide digital readouts, data logging, or remote monitoring. It relies on a mechanical pointer, which may be less convenient in modern automation systems.

3. **Maintenance Requirements** Over time, the internal mechanisms (e.g., the Bourdon tube, linkage, and pointer) may wear out or become inaccurate. Regular calibration and potential part replacements are necessary to maintain accuracy.

4. **Sensitivity to Vibrations and Shock** Bourdon tube gauges can be affected by excessive vibrations or mechanical shocks, leading to pointer drift or mechanical failure. This may require additional mounting considerations (e.g., dampening mounts) in dynamic environments.

5. **Limited Range for Extreme Conditions** While the 4300 series is robust, it may not be suitable for extreme high-pressure or high-temperature applications without additional modifications (e.g., special seals or materials). Consulting the manufacturer s specifications is essential.

6. **Dependence on Human Interpretation** Since the gauge provides a physical reading, there is a risk of human error in reading the scale, especially in low-light or high-stress conditions. Digital alternatives can reduce this risk.

7. **Potential for Leaks** Like all pressure gauges, Bourdon tube gauges can develop leaks at the connection points (e.g., the process connection or the gauge housing). Regular inspections are required to prevent failures.

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The **Norriseal 420079 Bourdon Tube (4300 Series)** is a high-quality, durable pressure gauge well-suited for industrial applications where mechanical reliability and accuracy are prioritized. Its robust construction, corrosion resistance, and compliance with industry standards make it a strong choice for environments where digital alternatives are not feasible or necessary. However, its lack of digital features, higher cost, and maintenance requirements may be drawbacks depending on the specific use case.

For applications requiring **real-time data logging, remote monitoring, or extreme precision in dynamic conditions**, a digital pressure transmitter or a smart gauge might be more appropriate. Conversely, if the primary needs are **mechanical reliability, cost-effective long-term use, and compliance with traditional industrial standards**, this Norriseal gauge remains a solid recommendation.

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- You need a **mechanically reliable, durable gauge** for industrial pressure measurement.

- Your application does not require digital readouts or automation integration.

- You operate in environments with **moderate to high pressure/temperature** and need a gauge that can withstand corrosion.

- Budget constraints allow for a **higher initial investment** in exchange for long-term performance.

- You require **real-time data logging, remote monitoring, or integration with SCADA systems**.

- Your application involves **extreme vibrations, shocks, or rapidly changing pressures** where mechanical gauges may struggle.

- Cost efficiency is a priority, and you can find a lower-cost gauge that meets your accuracy needs.

Ultimately, the Norriseal 4300 series is a **strong choice for traditional industrial settings** where mechanical gauges remain the standard. Always verify the gauge s specifications against your exact application requirements before purchasing.

Details:

The NORRISEAL 420079 Bourdon'tube 4300 model is a high-quality pressure gauge designed for industrial use. With its precision and durability, this Bourdon'tube model is perfect for monitoring controlling air pressure in various applications. Made in the USA, this gauge is capable of measuring up to 100 psi 6.9 bar pressure.

part #: 420079 price

• $100.00

specifications pressureswitchiz:

• brand: Norriseal
• mpn: 420079
• part type: Tube
• maximum pressure: 100 Psi
• country of origin: United States

seller pressureswitchiz:

• # reviews: 15
• city: Corpus Christi, Texas
• rating: 100.0%

offer pressureswitchiz:

• quantity: 1
• options: Ship-to-home
• started: March 6, 2026
• availability: In Stock
• sold: 0

returns pressureswitchiz:

• policy: No Returns

general pressureswitchiz:

• Business Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Air Pressure Gauges
• condition: New

payments pressureswitchiz:

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

shipping pressureswitchiz:

• class: Standard
• cost: $8.35
• transit: 5-11 Days
• carrier: USPS
• type: Calculated
• service: USPS Ground Advantage

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