ASHCROFT 45-2462-SS-04L-30IMV Duragauge 4-1/2 HG-100

( Brand: Ashcroft ), ( Manufacturer Part Number: 45-2462-SS-04L-30IMV )

Review ASHCROFT 100 4-1/2 Inch Duragauge Plus 30 Psi

The **Ashcroft 45-2462-SS-04L-30IMV 4 " Duragauge Pressure Gauge** is a premium, high-performance instrument designed for precision measurement in industrial, commercial, and mechanical applications where accuracy, durability, and reliability are paramount. This stainless steel (SS) gauge is part of Ashcroft s renowned **Duragauge** series, renowned for its robust construction and long-lasting performance in demanding environments. With a **4 -inch dial face**, it provides an expansive, easy-to-read display, ensuring operators can quickly and confidently monitor pressure levels in systems ranging from hydraulic and pneumatic applications to HVAC, oil and gas, and process control industries. The **30-inch mercury (Hg) range** equivalent to approximately **100 psi (pounds per square inch)** makes it ideal for medium-pressure applications where precise readings are critical, such as in compressed air systems, refrigeration units, or low-pressure steam lines.

Crafted from **316 stainless steel**, this gauge is inherently resistant to corrosion, rust, and chemical degradation, making it suitable for use in corrosive or humid environments where standard materials would fail. The **04L** designation indicates a **low-pressure range**, ensuring the gauge is optimized for applications where pressure fluctuations are subtle but require meticulous tracking. The **IMV (Internal Movement Valve)** feature enhances the gauge s durability by preventing damage from sudden pressure surges or backflow, a common issue in systems with pulsating or erratic pressure. This internal mechanism acts as a protective barrier, extending the gauge s operational lifespan and reducing the risk of costly downtime due to mechanical failure.

The gauge s **durable brass or stainless steel case** is designed to withstand physical stress, vibrations, and temperature variations, while its **sealed back** ensures accuracy is maintained over time by preventing contamination from external elements. The **black enamel dial** with **white Arabic numerals and markings** provides high contrast for clear visibility, even in low-light conditions, while the **red pointer** ensures quick identification of pressure levels. Ashcroft s reputation for **calibration precision** is evident in this model, which undergoes rigorous testing to meet or exceed industry standards such as **ANSI B40.100** and **ISO 228**, guaranteeing consistent performance across a wide range of applications.

Whether installed in a **factory floor, HVAC system, or laboratory setting**, this Duragauge offers a perfect blend of **engineering excellence and practicality**. Its **universal mounting options**, including **NPT (National Pipe Thread) or BSP (British Standard Pipe) connections**, ensure compatibility with most standard piping systems, while its **sealed glass window** protects the internal mechanism from dust, moisture, and debris. For industries where reliability is non-negotiable, the **Ashcroft 45-2462-SS-04L-30IMV** stands as a dependable workhorse, delivering accurate pressure readings with minimal maintenance and maximum efficiency.

### **Pros and Cons of buying a Ashcroft 45-2462-SS-04L-30IMV (4.5" Duragauge, 30 HG, 100" Tubing)**

1. **High-Quality Construction** Ashcroft is a well-established brand known for durable, precision-engineered pressure gauges. This model features a stainless steel (SS) case, which is corrosion-resistant and suitable for industrial, commercial, and some harsh environments.

2. **Duragauge Design** The Duragauge mechanism is known for its reliability, accuracy, and long service life. It minimizes wear and tear compared to traditional bourdon tube gauges, reducing the need for frequent recalibration.

3. **Wide Range (30 HG)** The 30 HG (Hundreds of Water Gauge) range is ideal for low-pressure applications such as HVAC systems, water pressure monitoring, vacuum systems, or light industrial processes where pressures are typically below 30 psi.

4. **Stainless Steel Tubing (100" Length)** The 100" tubing length provides flexibility in installation, allowing for longer runs between the gauge and the pressure source without significant signal loss or lag.

5. **Accurate and Repeatable Readings** Ashcroft gauges are calibrated for precision, making them suitable for applications where consistent measurements are critical.

6. **Compatibility with Various Fluids** The stainless steel construction and sealing materials (likely Viton or similar) make it compatible with water, air, and some non-corrosive gases, though always verify with the manufacturer for specific fluid compatibility.

7. **Easy Installation** Standard 4.5" diameter and NPT (National Pipe Thread) connections (assuming standard fittings) make it straightforward to integrate into existing systems.

8. **Long Lifespan** Duragauge mechanisms are designed to last decades with proper maintenance, reducing replacement costs over time.

9. **Visual Clarity** The dial face is likely large and legible, making it easy to read from a distance, which is beneficial in industrial or control room settings.

10. **Warranty and Support** Ashcroft products often come with manufacturer warranties, and their reputation ensures availability of replacement parts or service if needed.

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1. **Limited Pressure Range** The 30 HG range is very low. If your application requires higher pressures (e.g., above 30 psi), this gauge is unsuitable. For higher ranges, you d need a different model (e.g., 100 HG, 1000 psi, etc.).

2. **Potential for Condensation or Freezing** In environments where moisture or freezing temperatures are present (e.g., outdoor HVAC systems), condensation inside the gauge could affect accuracy or cause damage over time. A drain valve or heated installation may be needed.

3. **Cost** Compared to basic bourdon tube gauges, Ashcroft Duragauge models are more expensive upfront. However, their longevity often justifies the cost in long-term use.

4. **Maintenance Requirements** While Duragauge mechanisms are durable, they still require occasional maintenance (e.g., lubrication of moving parts, checking for leaks). Neglecting maintenance can reduce lifespan.

5. **Limited Material Compatibility** The gauge may not be suitable for highly corrosive fluids (e.g., acids, solvents) unless specified otherwise. Always confirm with the manufacturer or datasheet.

6. **Size and Installation Space** The 4.5" diameter is standard but may require more panel space than smaller gauges. Ensure your installation area can accommodate it.

7. **Potential for Overuse in High-Vibration Environments** While Duragauge mechanisms are robust, excessive vibration (e.g., in heavy machinery) could affect accuracy over time. Mounting on dampening pads may be necessary.

8. **No Built-in Protection for Overpressure** This gauge does not inherently protect against sudden spikes in pressure. A pressure relief valve or burst disc should be installed upstream if overpressure is a risk.

9. **Limited Customization** Unlike some industrial gauges, this model may not offer customizable features like backlit displays, remote sensing, or digital interfaces.

10. **Potential for Misinterpretation of Units** The "HG" (Hundreds of Water Gauge) unit is less common than psi or bar. Ensure operators understand the scale to avoid confusion.

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The **Ashcroft 45-2462-SS-04L-30IMV** is an excellent choice for applications requiring **accurate, low-pressure monitoring (up to 30 psi) in non-corrosive environments**. Its **Duragauge mechanism ensures longevity and reliability**, making it ideal for HVAC systems, water pressure monitoring, vacuum applications, or light industrial processes where precision is critical. However, it is **not suitable for high-pressure or corrosive environments** and may require additional protection (e.g., drain valves, vibration dampening) in harsh conditions.

If your application fits within its **30 HG range** and you prioritize **durability and accuracy**, this gauge is a strong investment. For **higher pressures, corrosive fluids, or extreme environments**, consider a different model or additional protective measures.

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- You need a **low-pressure ( 30 psi) monitoring solution** for water, air, or non-corrosive gases.

- You require **long-term reliability** and are willing to invest in a high-quality, low-maintenance gauge.

- Your environment is **not excessively corrosive, vibrating, or prone to condensation**.

- You can accommodate the **4.5" diameter** and standard NPT connections.

- Your pressure range **exceeds 30 psi** (opt for a higher-range model).

- Your system involves **corrosive fluids** (e.g., acids, solvents) without verification of compatibility.

- You operate in **extreme temperatures or high-vibration settings** without additional safeguards.

- You need **custom features** (e.g., remote sensing, digital readout) not offered by this model.

- For **higher pressures**, look at Ashcroft s **100 HG, 1000 psi, or 6000 psi** models.

- For **corrosive environments**, consider **titanium or Hastelloy** case materials.

- For **digital monitoring**, pair this gauge with a **transmitter or smart sensor** for remote readings.

In summary, this is a **solid, professional-grade gauge** for its intended use, but always verify its compatibility with your specific application before purchasing.

Details:

ITEM TITLE: Ashcroft 4-1/2 Duragauge PLUS. Our structural steel product line includes beams, road plates, flat sheets, expanded grating material, pipe, square round tubing, bars and metal roofing. 30in.Hg-100 PSI, 45-2462-SS-04L-30IMV 100 Brand: Ashcroft. Condition: New.

Lot# DU226 11.7.C. Most items are available in galvanized, carbon steel, stainless and aluminum as well. Model: 45-2462-SS-04L-30IMV 100. Surplus Division.

Must ship to a commercial address with forklift and/or dock.

part #: 452462ss04l30imv prices

• $44.99-$59.00

specifications pressureswitchiz:

• brand: Ashcroft
• mpn: 45-2462-ss-04l-30imv

offer pressureswitchiz:

• availability: In Stock
• started: February 25, 2026
• sold: 0
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• Business Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Air Pressure Gauges
• condition: New

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• city: Glassboro, New Jersey
• # reviews: 14333
• rating: 99.9%

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