AMETEK 168540 Pack Gauge Glass Npt Bottom 200 Psi. DIAMETER-3.5 P505A 1/4

( Brand: Ametek ), ( Manufacturer Part Number: 168540 ), ( Part Type: Gauge ), ( Face Diameter: 3.5 In ), ( Connection Diameter: 1/4 In ), ( Maximum Pressure: 200 Psi )

Review AMETEK Pack Gauge 200 Psi. Glass Face Diameter-3.5 Inch 1/4 Npt Bottom

The **Ametek 168540 Pack Gauge with 200 Glass, 3.5" Diameter, P505A, and 1/4 NPT Bottom** is a high-performance, precision-engineered pressure gauge designed for demanding industrial applications where accuracy, durability, and reliability are paramount. This gauge is part of the robust **Ametek (formerly Dresser) line of instrumentation**, renowned for its exceptional quality and long-term performance in harsh environments. The **200 psi (14 bar) glass dial** provides a clear, easy-to-read indication of pressure levels, with bold, high-contrast markings that ensure quick and accurate interpretation even in low-light conditions. The **3.5-inch diameter** offers ample visibility, making it ideal for monitoring systems where operators require immediate, unobstructed readings without the need for magnification.

The **P505A** model features a **bourdon tube mechanism**, a proven technology known for its precision and stability over extended periods. This gauge is constructed from **high-grade materials**, including a **cast iron case** for structural integrity and resistance to mechanical stress, while the **anodized aluminum dial** resists corrosion and wear, ensuring longevity in corrosive or humid environments. The **1/4 NPT bottom connection** allows for secure and leak-proof installation in piping systems, accommodating standard fittings for easy integration into existing setups. The gauge is also equipped with a **screw-type mounting flange**, providing flexibility for wall or panel mounting in various industrial settings.

Beyond its functional specifications, this gauge is engineered with **safety and operational efficiency** in mind. The **sealed backfill** prevents internal condensation, which can compromise accuracy, while the **high-visibility color coding** (typically red for warning limits and black for scale markings) helps operators quickly identify critical pressure thresholds. The **anti-vibration design** minimizes fluctuations in readings caused by mechanical disturbances, ensuring consistent performance in dynamic environments such as HVAC systems, hydraulic applications, or pneumatic controls. Whether used in manufacturing, automotive, or process industries, this gauge delivers **reliable, repeatable measurements** with minimal maintenance, making it a cost-effective solution for long-term pressure monitoring.

For applications requiring **explosion-proof or hazardous area compliance**, this model can be paired with appropriate certifications (such as **ATEX or NEMA 7/9**), though the base unit itself is designed for standard industrial use. Its **durable construction and precise calibration** make it suitable for both new installations and retrofitting existing systems where accuracy and durability are non-negotiable. With **Ametek s reputation for quality assurance**, this pressure gauge stands as a dependable choice for professionals who demand performance without compromise.

### **Pros and Cons of buying a Ametek 168540 Pack Gauge (200 Glass, 3.5" Diameter, P505A, 1/4 NPT Bottom)**

1. **High Accuracy and Reliability** The P505A pressure gauge is known for its precision, making it suitable for industrial applications where consistent readings are critical.

2. **Durable Construction** Ametek (formerly Ashcroft) is a reputable brand with a history of producing robust gauges that withstand harsh environments, including temperature fluctuations and pressure cycles.

3. **Wide Pressure Range (200 PSI)** The 200 PSI range is versatile for many applications, including HVAC, pneumatic systems, and light industrial processes.

4. **Clear, Large Dial (3.5" Diameter)** The large glass face improves readability, reducing operator error in monitoring pressure.

5. **Standardized Threading (1/4 NPT Bottom)** Compatibility with common piping systems simplifies installation and replacement.

6. **Packaged for Convenience** The "pack gauge" format suggests it may come with mounting hardware or accessories, reducing additional purchase needs.

7. **Long-Term Performance** Ametek gauges are designed for durability, often lasting years with proper maintenance, reducing replacement costs.

8. **Industry Standard Compliance** Likely meets or exceeds ANSI, ASME, or other relevant standards for safety and performance.

1. **Potential High Upfront Cost** Compared to generic or lower-end gauges, Ametek products may have a higher initial price, which could be a concern for budget-sensitive buyers.

2. **Maintenance Requirements** Like all mechanical gauges, it requires periodic calibration and seal replacement to maintain accuracy, adding long-term maintenance costs.

3. **Limited Customization** The fixed 200 PSI range and standard mounting may not suit applications requiring specialized ranges or unique installations.

4. **Potential for Damage in Rough Environments** While durable, exposure to extreme conditions (e.g., corrosive fluids, excessive vibration) could shorten its lifespan.

5. **Replacement Parts Dependency** If the gauge fails, sourcing exact replacements (e.g., seals, springs) may be challenging if Ametek parts are discontinued.

6. **Overkill for Low-Pressure Applications** If the user only needs occasional or very low-pressure monitoring, a simpler gauge might suffice without the added cost.

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The **Ametek 168540 Pack Gauge** is a high-quality, reliable choice for industrial or commercial applications where accuracy, durability, and readability are priorities. Its large dial, standardized threading, and brand reputation make it a strong investment for environments where pressure monitoring is critical. However, the higher cost and maintenance needs may not justify its purchase for casual or low-pressure use cases.

- **Buy if:** You need a **long-term, high-accuracy gauge** for industrial, HVAC, or pneumatic systems where reliability is essential. The 200 PSI range and 3.5" dial provide clear, dependable readings in demanding conditions.

- **Avoid if:** You are working with **low-pressure or non-critical applications** where a cheaper, simpler gauge would suffice. Alternatively, if budget constraints exist, consider a reputable generic brand with similar specifications.

- **Consider alternatives:** If the price is prohibitive, explore **Ashcroft or other Ametek-compatible gauges** (e.g., 150 PSI range) or **digital pressure transmitters** for applications requiring data logging or remote monitoring.

For most **serious industrial users**, this gauge is a **solid, long-lasting purchase** worth the investment. For less demanding uses, a cost-effective alternative may be preferable.

Details:

4 Pack Ametek Gauge 200 PSI.

part #: 168540 prices

• $29.95-$36.00

specifications pressureswitchiz:

• brand: Ametek
• mpn: 168540
• part type: Gauge
• face diameter: 3.5 In
• connection diameter: 1/4 In
• maximum pressure: 200 Psi

general pressureswitchiz:

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

payments pressureswitchiz:

• credit card: Mastercard
• wallet: Paypal
• other

offer pressureswitchiz:

• availability: In Stock
• options: Ship-to-home
• quantity: 1
• started: February 15, 2026
• sold: 0

shipping pressureswitchiz:

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

seller pressureswitchiz:

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

returns pressureswitchiz:

• policy: No Returns

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