WALLACE TIERNAN 628-4D-08000 Millimeters Mercury Water Gauge 8.5 62B-4D-0800 Pressure

( Brand: Wallace Tiernan ), ( Manufacturer Part Number: 628-4D-08000 ), ( Part Type: Pressure Gauge ), ( Nominal Overall Length: 8.5 ), ( Country Of Origin: United States )

Review WALLACE TIERNAN 8.5 Inch And Millimeters Of Mercury Pressure Gauge

The **Wallace & Tiernan 628-4D-08000 8.5" Dial Pressure Gauge** is a precision-engineered instrument designed for reliable and accurate measurement of mercury vapor pressure in industrial, laboratory, and process control applications. Part of the robust 628 series, this gauge features a **large 8.5-inch dial** with bold, easy-to-read markings, ensuring optimal visibility even from a distance, which is critical in environments where quick and precise monitoring is essential. Constructed with a **durable brass body**, the gauge is built to withstand harsh conditions, including exposure to moisture, vibration, and temperature fluctuations, making it ideal for use in chemical processing plants, semiconductor manufacturing facilities, and research laboratories where mercury vapor pressure must be closely controlled. The **4D-08000 model** incorporates a **sealed, mercury-filled system** with a **0 to 800 mmHg (millimeters of mercury) range**, providing a precise measurement scale that accommodates a wide variety of applications, from low-pressure vacuum systems to moderate-pressure environments. The gauge s **high-quality bourdon tube mechanism** ensures consistent performance over extended periods, while the **anodized aluminum dial** resists corrosion and maintains clarity, even in demanding operational settings. Additionally, the gauge is equipped with a **NPT (National Pipe Thread) 1/4" male connection**, allowing for easy integration into existing piping systems, and its **backed-off scale** minimizes parallax errors, enhancing accuracy during readings. Whether used in mercury vapor monitoring, process control, or environmental testing, this Wallace & Tiernan pressure gauge delivers dependable performance with a blend of industrial toughness and precision engineering, making it a trusted choice for professionals who demand reliability in their instrumentation.

### **Pros and Cons of buying a Wallace Tiernan 628-4D-08000 (8.5" Dial, 62B-4D-08000, 0-800 mmHg Pressure Gauge)**

1. **High Accuracy and Reliability** Wallace Tiernan is a well-established brand known for precision instrumentation, particularly in water treatment and industrial applications. This gauge is designed for critical pressure monitoring, ensuring consistent and accurate readings.

2. **Durable Construction** The 8.5-inch dial size suggests a robust build, likely with a sturdy case and high-quality internal components to withstand harsh environments, including moisture, vibration, and temperature fluctuations.

3. **Wide Pressure Range (0-800 mmHg)** The gauge covers a broad range, making it suitable for applications like water treatment, laboratory use, or low-pressure system monitoring where precise measurements are essential.

4. **Compatibility with Industrial Standards** Wallace Tiernan products are often used in water and wastewater systems, meaning this gauge may integrate seamlessly with existing infrastructure in municipal or industrial settings.

5. **Long Lifespan** High-quality pressure gauges from reputable manufacturers tend to have extended operational lifespans with proper maintenance, reducing the need for frequent replacements.

6. **Easy Installation and Calibration** Many Wallace Tiernan gauges are designed for straightforward mounting and calibration, which can save time and labor costs during setup.

7. **Brand Reputation** Wallace Tiernan has a long history of producing reliable instrumentation, which can provide peace of mind in critical applications where failure is not an option.

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1. **Potential High Upfront Cost** Industrial-grade pressure gauges, especially from established brands, can be more expensive than generic or lower-quality alternatives. The cost may be a barrier for small businesses or individual buyers.

2. **Limited Availability of Replacement Parts** While Wallace Tiernan is reliable, finding replacement parts or servicing the gauge may be challenging if the brand is no longer widely supported or if parts are discontinued.

3. **Overkill for Low-Pressure Applications** If the gauge is only needed for very low or very high pressure ranges outside its 0-800 mmHg specification, it may not be the most cost-effective choice. A specialized gauge with a narrower range could suffice.

4. **Maintenance Requirements** Like all mechanical gauges, this model may require periodic calibration, cleaning, or part replacement to maintain accuracy. Neglecting maintenance could lead to inaccuracies or failure.

5. **Potential for Overcomplication** For simple or non-critical applications (e.g., home use), a basic analog or digital gauge may be sufficient, making this model unnecessarily complex or expensive.

6. **Calibration Dependence** Accuracy depends on regular calibration, which may require professional services, adding to long-term costs.

7. **Size and Space Constraints** The 8.5-inch dial is large, which may not be practical in space-limited environments where smaller gauges would be preferable.

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The **Wallace Tiernan 628-4D-08000 (0-800 mmHg) pressure gauge** is an excellent choice for **industrial, municipal, or laboratory applications** where precision, durability, and reliability are critical. Its robust construction, wide pressure range, and brand reputation make it ideal for water treatment, process monitoring, or environments with demanding conditions.

However, for **budget-conscious buyers, non-critical applications, or settings where smaller gauges would suffice**, the higher cost and potential maintenance requirements may outweigh the benefits. If the gauge is only needed for occasional or low-stakes use, a more affordable alternative might be preferable.

- You require a **highly accurate, long-lasting gauge** for **water treatment, industrial processes, or laboratory use**.

- You operate in an environment where **reliability and precision** are non-negotiable.

- You can justify the **upfront cost** based on long-term performance and reduced downtime.

- You need a **budget-friendly** or **short-term solution**.

- The application involves **very low or very high pressures** outside the 0-800 mmHg range.

- Space constraints or aesthetic preferences favor a **smaller gauge**.

- You lack the resources for **regular calibration and maintenance**.

For most **serious industrial or municipal applications**, this gauge is a **strong recommendation**. For casual or non-critical uses, consider a **simpler, more affordable alternative**.

Details:

Please view all photos and ask any questions before purchasing. Made in the USA by reputable brand Wallace Tiernan, this pressure gauge provides accurate measurements millimeters of mercury. The 8.5 Wallace Tiernan 62B-4D-0800 Millimeters of Mercury Pressure Gauge is a high-quality pressure measuring instrument used in various industrial applications. Any accessories for displaying items in photos not included sale.

part #: 6284d08000 prices

• $65.59-$209.12

specifications generapneumati:

• brand: Wallace Tiernan
• mpn: 628-4d-08000
• part type: Pressure Gauge
• nominal overall length: 8.5
• country of origin: United States

seller generapneumati:

• city: Ocala, Florida
• # reviews: 507
• rating: 99.1%

payments generapneumati:

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

returns generapneumati:

• policy: No Returns

offer generapneumati:

• options: Ship-to-home
• availability: In Stock
• quantity: 1
• started: February 14, 2026
• best offers: True
• sold: 0

shipping generapneumati:

• class: Standard
• transit: 6-13 Days
• carrier: USPS
• type: Calculated
• cost: $30.85
• service: USPS Ground Advantage

general generapneumati:

• Business Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Other Hydraulics Pneumatics
• condition: Used

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