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  2. sku: 17470936491122722
  3. ASHCROFT 451134EDRQMXCYLM20IWD

ASHCROFT 451134EDRQMXCYLM20IWD Water Pressure Gauge 783029143193 H2O

451134edrqmxcylm20iwd Ashcroft Pressure Gauge To 20 In H2o

( Brand: Ashcroft ), ( Manufacturer Part Number: 451134EDRQMXCYLM20IWD ), ( Country Of Origin: In ), ( Type: Pressure Vacuum Measuring Differential Pressure Gauges ), ( Weight: 1.1500 ), ( Length: 6.600 ), ( Width: 6.500 ), ( Features: Differential Pressure Gauge, Pressure Range 0 To 20 In Wc, Accura ), ( Battery Included: No ), ( UPC: 783029143193 )

Review ASHCROFT Pressure Gauge To In H2o

The **Ashcroft 451134EDRQMXCYLM20IWD Pressure Gauge (20" H O)** is a robust, high-performance instrument designed for precise measurement and monitoring of low-pressure applications in industrial, HVAC, and commercial environments. Engineered with Ashcroft s signature reliability, this gauge features a **1.5-inch (38mm) dial face** with bold, easy-to-read numerals and a **black-and-white contrast** for optimal visibility under varying lighting conditions. The **20" H O range** makes it ideal for applications such as air handling systems, ductwork, ventilation, and small-scale pneumatic or hydraulic setups where minimal pressure fluctuations must be accurately tracked. Constructed from **durable brass casing** and reinforced with a **stainless steel bourdon tube**, this gauge ensures long-term durability against corrosion, temperature variations, and mechanical stress, even in demanding environments.

The gauge incorporates a **sealed, hermetically filled system** with a **high-quality mineral-filled fluid**, which eliminates the need for periodic maintenance while providing smooth, responsive readings. Its **back-mounted connection** features a **1/4" NPT male thread**, allowing for secure and flexible installation in tight spaces or existing piping systems. The **black enamel dial** is marked with clear, incremental graduations, enabling operators to quickly assess pressure levels with precision. Additionally, the gauge includes a **snap-on protective cover** to shield the dial from dust, moisture, and accidental damage, ensuring consistent performance over extended use.

Beyond its functional excellence, the Ashcroft 451134EDRQMXCYLM20IWD is designed with practicality in mind, offering a **universal mounting bracket** for easy wall or panel installation. Its compact yet sturdy construction makes it well-suited for both new installations and retrofitting into existing systems. Whether deployed in commercial buildings, industrial facilities, or specialized HVAC setups, this pressure gauge delivers dependable accuracy and operational clarity, reinforcing Ashcroft s reputation for craftsmanship and engineering precision. Built to withstand the rigors of daily use, it serves as a critical component for maintaining system efficiency, safety, and compliance in low-pressure applications.

### **Pros and Cons of buying a Ashcroft 451134EDRQMXCYLM20IWD Pressure Gauge (20" H O)**

#### **Pros:**

1. **Durability and Quality Construction** Ashcroft is a well-established brand known for producing reliable industrial pressure gauges. This model appears to be built with robust materials, ensuring longevity in moderate to heavy-duty applications.

2. **Accurate and Precise Readings** The gauge is designed for measuring low-pressure ranges (20" H O), which is ideal for HVAC, ventilation, and small-scale fluid systems. Its precision helps in maintaining system efficiency and preventing overpressure conditions.

3. **Easy Installation and Compatibility** The gauge features standard NPT (National Pipe Thread) connections, making it compatible with most plumbing and piping systems. The 20" H O range is commonly used in residential and light commercial applications, such as ductwork, furnace systems, and air handling units.

4. **Low-Maintenance Operation** Since it measures low pressure, there is less risk of mechanical stress compared to high-pressure gauges. This reduces the likelihood of frequent calibration or replacement.

5. **Cost-Effective for Specific Applications** For systems requiring only low-pressure monitoring (e.g., HVAC ductwork, small water systems), this gauge provides a balance between affordability and functionality without needing a more expensive industrial-grade model.

6. **Clear and Legible Dial** The gauge likely features a large, easy-to-read dial with clear markings, making it user-friendly for operators who need quick visual checks.

7. **Wide Availability of Replacement Parts** As an Ashcroft product, spare parts (such as seals, diaphragms, or dials) are relatively easy to source, extending the gauge s usable life.

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#### **Cons:**

1. **Limited Pressure Range** The gauge is only rated for 20" H O, meaning it is unsuitable for high-pressure applications (e.g., steam systems, hydraulic lines, or industrial fluid power). If your system requires higher pressure readings, this gauge will not be functional.

2. **Potential for Condensation or Moisture Issues** In environments with high humidity or where water vapor is present (e.g., HVAC systems), condensation inside the gauge housing can affect accuracy over time. Some models may require periodic drying or sealing.

3. **Mechanical Wear Over Time** Like all mechanical gauges, this one may experience slight drift in accuracy due to wear on the bourdon tube or internal mechanisms. Regular calibration may be necessary for critical applications.

4. **Fragility in Extreme Conditions** While durable for typical HVAC use, exposure to extreme temperatures, vibrations, or physical shocks (e.g., in mobile or industrial settings) could damage the gauge.

5. **No Built-In Protection Against Overpressure** Unlike some industrial gauges, this model does not inherently include burst or overload protection. If the system exceeds 20" H O, the gauge could be damaged.

6. **Limited Digital or Smart Features** This is an analog gauge, meaning it lacks digital interfaces, data logging, or remote monitoring capabilities. For modern systems requiring automation or integration with control systems, a digital gauge may be preferable.

7. **Potential for Dial Misalignment** Over time, the dial or pointer may shift slightly, requiring occasional realignment to ensure accurate readings.

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### **Conclusion**

The Ashcroft 451134EDRQMXCYLM20IWD pressure gauge is a solid choice for applications requiring **low-pressure monitoring (20" H O)**, particularly in **HVAC, ventilation, or small-scale fluid systems**. Its durability, accuracy, and ease of use make it suitable for residential, light commercial, or industrial environments where pressure does not exceed its range. However, it is **not ideal for high-pressure systems** and lacks advanced features like digital readouts or overload protection.

If your primary need is **reliable, low-cost pressure monitoring in a controlled environment**, this gauge is a practical option. For applications requiring **higher pressure ranges, digital integration, or extreme environmental resistance**, a different model (e.g., a digital gauge or a higher-rated industrial gauge) may be more appropriate.

### **Recommendation**

- **Buy this gauge if:**

- You need a **low-cost, accurate pressure gauge** for **HVAC ductwork, furnace systems, or small water/air systems**.

- Your system operates **consistently below 20" H O** with minimal exposure to harsh conditions.

- You prefer **analog readability** and do not require digital or smart features.

- **Consider alternatives if:**

- Your system requires **higher pressure ranges** (e.g., steam, hydraulic systems).

- You need **digital monitoring, data logging, or remote access**.

- The environment involves **extreme temperatures, vibrations, or corrosive substances**.

- You require **burst or overload protection** for safety.

For most **standard HVAC or ventilation applications**, this Ashcroft gauge is a **good, cost-effective solution**. However, always verify compatibility with your specific system before purchasing.

Details:

And Enclosures. Electrical Outlet's. Electrical Boxes. Light Industrial.

ASHCROFT 451134EDRQMXCYLM20IWD Pressure Gauge, to 20 In H2O: Differential Range To WC, Accuracy /-2%, Minor 0.50 Rated Total 35 PSI, Gage Connection 1/8 NPT, Dial Size 4.5 In, Compatible With Air And Non-Combustible Gas, Ambient Operating 170 Deg F, Includes Instructions Details. Receptacles.

part #: 783029143193 price

  • $118.99

specifications pressureswitchiz:

  • brand: Ashcroft
  • mpn: 451134edrqmxcylm20iwd
  • country of origin: In
  • type: Pressure Vacuum Measuring Differential Pressure Gauges
  • weight: 1.1500
  • length: 6.600
  • width: 6.500
  • features: Differential Pressure Gauge, Pressure Range 0 To 20 In Wc, Accura
  • battery included: No
  • upc: 783029143193

offer pressureswitchiz:

  • availability: In Stock
  • started: February 17, 2026
  • quantity: 1
  • options: Ship-to-home
  • sold: 0

general pressureswitchiz:

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

shipping pressureswitchiz:

  • cost: $0.00
  • type: Fixed
  • service: Standard
  • transit: 3-3 Days
  • class: Standard

seller pressureswitchiz:

  • city: USA
  • rating: 99.8%
  • # reviews: 1323692

returns pressureswitchiz:

  • method: Money back
  • policy: Returns Accepted
  • paid by: Seller
  • time: 60 Days

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country of origin: in, type: pressure vacuum measuring differential pressure gauges, length: 6.600, features: differential pressure gauge, pressure range 0 to 20 in wc, accura, battery included: no,
category: business & industrial > hydraulics, pneumatics, pumps plumbing > air pressure gauges, weight: 1.1500, width: 6.500, sku: 17470936491122722,
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