AMETEK 171223A Pack Vacuum Gauge Hg Glass Npt Bottom 30 Hg. 3.5 V505A 1/4

( Brand: Ametek ), ( Manufacturer Part Number: 171223A ), ( Part Type: Vacuum Gauge ), ( Face Diameter: 3.5 In ), ( Connection Diameter: 1/4 In ), ( Maximum Pressure: 30 In Hg )

Review AMETEK Pack Vacuum Gauge 30 In Hg. Glass Face 3.5 Inch 1/4 Npt Bottom

The **Ametek 171223A Pack Vacuum Gauge (30 Hg, Glass, 3.5 V505A, 1/4 NPT Bottom)** is a precision-engineered instrument designed for reliable and accurate measurement of vacuum levels in industrial, laboratory, and manufacturing applications. This gauge belongs to the **V505A series**, renowned for its durability, high performance, and compatibility with a wide range of vacuum systems. Featuring a **30-inch mercury (Hg) scale**, it provides precise readings across a broad pressure range, from atmospheric pressure down to deep vacuum levels, making it ideal for processes requiring meticulous control, such as vacuum furnaces, freeze-drying equipment, semiconductor manufacturing, and chemical processing. The **glass Bourdon tube** mechanism ensures exceptional clarity and responsiveness, allowing operators to monitor pressure fluctuations with ease while maintaining long-term accuracy.

Constructed with robust engineering, this gauge incorporates a **1/4 NPT (National Pipe Thread) bottom connection**, facilitating seamless integration into existing vacuum systems with standard fittings. The **3.5-inch diameter faceplate** offers a spacious display, reducing parallax errors and enhancing readability in both well-lit and dim environments. The gauge is calibrated to deliver consistent performance, with a **full-scale range of 30 Hg**, which translates to approximately **0 to 100 kPa (0 to 760 Torr)** in absolute pressure terms, depending on the application. This versatility makes it suitable for applications spanning from moderate vacuum environments to high-vacuum systems, where precision is critical.

Built to withstand demanding operational conditions, the **Ametek 171223A** is constructed from high-quality materials, including corrosion-resistant components and a sturdy metal housing, ensuring longevity and resistance to environmental factors such as moisture and temperature variations. The gauge s **packaged design** includes all necessary mounting hardware and seals, simplifying installation and reducing setup time. Additionally, the **V505A series** is known for its compatibility with Ametek s broader line of vacuum controllers and accessories, allowing for easy integration into automated systems. Whether used in research laboratories, manufacturing plants, or specialized industrial setups, this vacuum gauge delivers dependable performance, making it an indispensable tool for maintaining optimal process conditions in vacuum-dependent applications.

### **Pros and Cons of buying a Ametek 171223A Pack Vacuum Gauge (30 Hg, Glass, 3.5 V505A, 1/4 NPT Bottom)**

1. **High Accuracy and Reliability** The gauge is designed for precision vacuum measurement, making it suitable for applications requiring consistent readings in industrial, laboratory, or research settings.

2. **Wide Pressure Range (30 Hg)** The 30-inch mercury (Hg) range allows for monitoring a broad spectrum of vacuum levels, from rough to high vacuum, depending on the configuration.

3. **Glass Construction** Glass gauges are often preferred in clean environments (e.g., semiconductor, pharmaceutical, or research labs) because they are chemically inert and easier to clean than metal gauges.

4. **Compatibility with V505A Electronics** The 3.5 V505A module provides digital output, enabling integration with data logging systems or control panels for automated monitoring.

5. **1/4 NPT Bottom Connection** Standardized threading ensures easy installation in systems with compatible ports, reducing compatibility issues.

6. **Durable and Long-Lasting** Ametek (formerly Edwards) is a well-known manufacturer with a reputation for quality and durability in vacuum instrumentation.

7. **Calibration and Maintenance Support** Ametek provides calibration services and spare parts, ensuring longevity and troubleshooting support.

8. **Safety Features** Glass gauges are less prone to corrosion compared to metal gauges, reducing the risk of contamination in sensitive applications.

1. **Fragility of Glass** Glass components can break under mechanical stress, pressure shocks, or improper handling, potentially causing leaks or damage to the system.

2. **Limited Durability in Harsh Environments** In environments with extreme temperatures, vibrations, or corrosive gases, glass may degrade faster than metal gauges.

3. **Higher Cost Compared to Metal Gauges** Glass vacuum gauges are generally more expensive than their metal counterparts, which may be a consideration for budget-sensitive applications.

4. **Maintenance Requirements** Glass gauges may require more frequent inspection and cleaning to prevent contamination buildup, especially in dirty or particulate-laden environments.

5. **Potential for False Readings** If the gauge becomes contaminated (e.g., with oil or debris), accuracy may be compromised until cleaned or replaced.

6. **Replacement Parts Availability** While Ametek supports their products, finding replacement glass components (e.g., tubes or seals) may be more difficult than for metal gauges.

7. **Installation Complexity** Glass gauges may require careful mounting to avoid stress on the tubing, which could lead to leaks or breakage.

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The **Ametek 171223A Pack Vacuum Gauge** is an excellent choice for applications requiring **high precision, cleanliness, and compatibility with digital monitoring systems**. Its **glass construction** makes it ideal for **laboratory, semiconductor, or pharmaceutical environments** where contamination control is critical. However, its **fragility and higher cost** may make it less suitable for **rough industrial settings, high-vibration environments, or budget-constrained applications**.

If **accuracy, cleanliness, and digital integration** are priorities, this gauge is a strong recommendation. If **durability, cost, or resistance to harsh conditions** are more important, a **metal-bodied vacuum gauge** (e.g., a Pirani or Penning gauge) might be a better alternative.

- You need a **high-precision, clean, and digitally readable** vacuum measurement solution.

- Your application involves **sensitive environments** (e.g., labs, semiconductor manufacturing, or pharmaceutical processing).

- You can **handle the gauge carefully** and maintain it properly.

- You operate in a **high-vibration or corrosive environment** where metal gauges would be more durable.

- **Budget constraints** make the higher cost of a glass gauge prohibitive.

- You require **long-term reliability in extreme conditions** without frequent maintenance.

For most **precision vacuum applications**, this gauge is a **reliable and well-supported choice** from a trusted manufacturer.

Details:

For Sale 2 Pack Ametek Vacuum Gauge 30 IN HG. Glass Face 3.5 V505A, 1/4 NPT Bottom.

part #: 171223a prices

• $14.99-$25.00

specifications pressureswitchiz:

• brand: Ametek
• mpn: 171223a
• part type: Vacuum Gauge
• face diameter: 3.5 In
• connection diameter: 1/4 In
• maximum pressure: 30 In Hg

seller pressureswitchiz:

• city: West Burlington, Iowa
• rating: 100.0%
• # reviews: 3887

returns pressureswitchiz:

• policy: No Returns

shipping pressureswitchiz:

• carrier: USPS
• transit: 4-8 Days
• service: USPS Ground Advantage
• class: Standard
• type: Fixed
• cost: $0.00

general pressureswitchiz:

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

offer pressureswitchiz:

• availability: In Stock
• started: February 16, 2026
• quantity: 1
• sold: 0
• options: Ship-to-home

payments pressureswitchiz:

• wallet: Apple-pay
• other
• credit card: Diners-club

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