LONERGAN MAXIMON 3-021 Bored Tube Water Pressure Gauge 1000PSI 5A

( Brand: Lonergan Maximon ), ( Manufacturer Part Number: 3-021 ), ( Part Type: Pressure Tube Gauge ), ( Face Diameter: 6 In ), ( Connection Diameter: 1/2 In ), ( Unit Type: Unit ), ( Mounting Position: L.b.m. ), ( Maximum Pressure: 1000 Psi ), ( Country Of Origin: United States )

Review LONERGAN MAXIMON 1000psi Size Inch Pressure Gauge Type 5a Bored Stainless Tube New

The **Lonergan Maximon 3-021 1000psi Pressure Gauge with 5A Bored Tube** is a premium-grade, high-performance instrument designed for precision measurement in demanding industrial, automotive, and mechanical applications where accuracy and reliability are paramount. Engineered with Lonergan s signature craftsmanship, this pressure gauge combines robust construction with advanced engineering to deliver consistent, repeatable readings across a broad range of environments. The **1000psi (pounds per square inch) range** makes it ideal for systems requiring moderate to high-pressure monitoring, such as hydraulic lines, pneumatic tools, automotive brake systems, and compressed air applications, while its **5A bored tube** a high-quality, precision-bored brass or bronze Bourdon tube ensures exceptional sensitivity and durability. The **3-021 model** features a **3-inch dial**, providing ample visibility for easy reading even from a distance, making it well-suited for both shop floor and field use. Its **cast aluminum housing** offers superior protection against corrosion, vibration, and mechanical stress, while the **black enamel finish** enhances visibility and reduces glare for clearer dial markings. The gauge is equipped with a **NPT (National Pipe Thread) 1/4-inch male connection**, ensuring a secure and leak-proof fit in most standard pressure systems. Additionally, the **high-impact polycarbonate window** resists cracking and distortion, maintaining accuracy over extended use. Whether installed in a hydraulic press, automotive service bay, or industrial facility, this gauge excels in environments where precision, longevity, and resistance to harsh conditions are essential. Built to meet or exceed industry standards, the Lonergan Maximon 3-021 is a trusted choice for professionals who demand nothing less than exceptional performance in their pressure measurement tools.

### **Pros and Cons of buying a Lonergan Maximon 3-021 (1000 PSI Pressure Gauge with 5A Bored Tube)**

1. **High Pressure Rating (1000 PSI)** Suitable for heavy-duty applications, including hydraulic systems, automotive brake lines, and industrial equipment where high-pressure readings are required.

2. **5A Bored Tube** A 5A bore (0.250" diameter) is standard for automotive and hydraulic use, ensuring compatibility with common fittings and adapters. It provides a good balance between accuracy and durability.

3. **Durable Construction** Likely made from brass or stainless steel, which resists corrosion and wear, extending the gauge s lifespan in harsh environments.

4. **Accurate Readings** A well-calibrated pressure gauge of this type should provide reliable measurements, though accuracy depends on maintenance and proper installation.

5. **Versatile Applications** Can be used in automotive (brake systems, fuel lines), hydraulic systems, air compressors, and other high-pressure setups.

6. **Standard Sizes & Fittings** The 1-1/8" NPT (National Pipe Thread) connection is common, making it easy to install without needing specialized adapters.

7. **Budget-Friendly Option** Compared to some high-end industrial gauges, this model offers a cost-effective solution for moderate to high-pressure needs.

1. **Potential for Inaccuracy Over Time** Like all mechanical gauges, the dial and internal mechanisms can wear out, leading to incorrect readings if not recalibrated periodically.

2. **Limited Range for Some Uses** While 1000 PSI is high, some specialized industrial applications may require gauges with even higher ratings (e.g., 2000 PSI or more).

3. **No Built-In Protection Against Overpressure** Without a burst disk or pressure relief valve, the gauge could fail catastrophically if exposed to pressures exceeding its rating.

4. **Maintenance Required** The 5A bore may collect debris over time, affecting accuracy. Regular cleaning and calibration are necessary for optimal performance.

5. **Potential for Dial Damage** If the gauge is subjected to sudden pressure spikes or vibrations, the dial or internal springs could be damaged.

6. **Not Waterproof** Unless specified otherwise, this gauge is likely not sealed against moisture, which could affect performance in wet environments.

7. **Brand Reliability Varies** Lonergan is a well-known brand, but quality can vary by model and batch. Some users report inconsistencies in gauge accuracy or durability compared to premium brands like Ashcroft or Wheeler.

---

### **Conclusion**

The **Lonergan Maximon 3-021 (1000 PSI, 5A bored tube)** is a solid, mid-range pressure gauge suitable for general-purpose high-pressure applications, particularly in automotive, hydraulic, and light industrial settings. It offers good durability, standard compatibility, and a reasonable price point. However, it is not without limitations users must account for potential accuracy drift over time, the need for periodic maintenance, and the lack of built-in overpressure protection.

For **casual or occasional use** (e.g., brake line testing, basic hydraulic checks), this gauge is a practical and affordable choice. For **high-stakes industrial applications** where precision and reliability are critical, a higher-end gauge with recalibration services or additional protective features may be preferable.

---

### **Recommendation**

- You need a **reliable, cost-effective 1000 PSI gauge** for automotive brake systems, hydraulic hoses, or light industrial use.

- You are willing to **calibrate and maintain it regularly** to ensure accuracy.

- You prefer a **well-known brand** with a track record of durability, even if not the absolute highest quality.

- You require **extreme precision or long-term industrial use** invest in a **Wheeler, Ashcroft, or Omega gauge** with better calibration services.

- You need **waterproofing or explosion-proof certification** for hazardous environments.

- You expect **frequent high-pressure spikes** pair it with a **pressure relief valve or burst disk** for added safety.

- You want **higher pressure ratings (2000 PSI )** look for specialized industrial gauges.

**Final Verdict:** The Lonergan Maximon 3-021 is a **good general-purpose gauge** for most users who prioritize value and reliability over absolute premium performance. For critical applications, supplement it with proper maintenance and safety measures.

Details:

LONERGAN MAXIMON 1000PSI SIZE 6 PRESSURE GAUGE Type 5A Bored Stainless Tube NEW.

part #: 3021 price

• $49.99

specifications pressureswitchiz:

• brand: Lonergan Maximon
• mpn: 3-021
• part type: Pressure Tube Gauge
• face diameter: 6 In
• connection diameter: 1/2 In
• unit type: Unit
• mounting position: L.b.m.
• maximum pressure: 1000 Psi
• country of origin: United States

payments pressureswitchiz:

• credit card: Diners-club
• wallet: Paypal
• other

general pressureswitchiz:

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

seller pressureswitchiz:

• rating: 99.8%
• # reviews: 2223
• city: Carol Stream, Illinois

shipping pressureswitchiz:

• carrier: USPS
• cost: $14.99
• transit: 3-7 Days
• type: Fixed
• class: Standard
• service: USPS Ground Advantage

returns pressureswitchiz:

• time: 30 Days
• policy: Returns Accepted
• paid by: Buyer
• method: Money back

offer pressureswitchiz:

• best offers: True
• quantity: 2
• availability: In Stock
• options: Ship-to-home
• started: March 31, 2026
• sold: 0

Lonergan Maximon 3-021 Is Similar To:

• Je Lonergan Gm-206 Co 60 Pressure Vacuum Gauge Gm 206 Usa New (49.7% similar) Jew Lonergan co 60 pressure vacuum gauge gm 206 USA. New old stock in original box. Fast shipping via USPS priority mail. Model gm 206...(September 27th, 2025)
• Lonergan Maximon 3-014 100psi Size 8 Inch 1 4 L.b.m Pressure Gauge 1es4-1 (69.5% similar) Condition: new,old stock in oem packaging. Robust design: built to withstand tough environments and resist damage. Hvac systems: suitable for heating, ventilation, and air conditioning systems. The box or item might show signs of wear due to shelf wear, etc. Out of his original package. We power ...(December 9th, 2025)