ASHCROFT 1245B5 Duragauge Rf Diaphragm Seal 4.5 0-300 316SS 1FTFT

( Brand: Ashcroft ), ( Manufacturer Part Number: 1245B5 ), ( Part Type: Seal )

Review ASHCROFT 4.5 Duragauge Plus 0-300 Psi 316ss Pic 1ftft 300# Rf Diaphragm Seal

The **Ashcroft 1245B5 4.5" Duragauge Pressure Gauge with 316 Stainless Steel Diaphragm Seal (0-300 PSI, 1-Foot Fill Tube, 300 RF)** is a premium, high-performance pressure measurement instrument designed for demanding industrial, chemical, and process control applications where accuracy, durability, and corrosion resistance are paramount. Engineered with Ashcroft s legendary precision and reliability, this gauge combines a robust **4.5-inch dial face** for clear, easy-to-read indications with a **316 stainless steel diaphragm seal**, ensuring compatibility with aggressive fluids, corrosive chemicals, and high-temperature environments. The **0-300 PSI range** provides optimal sensitivity for medium-pressure systems, while the **1-foot fill tube** allows for flexible installation and remote monitoring, reducing the need for direct process contact. The **300 RF (Remote Fill) configuration** simplifies maintenance and calibration by enabling the gauge to be removed from service without draining the process fluid, minimizing downtime and contamination risks. Constructed from **high-grade materials**, including a **316 stainless steel diaphragm seal** and a **durable aluminum or stainless steel case**, this gauge resists pitting, corrosion, and wear, making it ideal for applications in food and beverage processing, pharmaceuticals, oil and gas, and chemical manufacturing. Its **sealed, filled system** eliminates the need for frequent refilling, ensuring consistent performance over extended periods. Whether used in critical process control, hygienic environments, or high-corrosion-risk settings, the Ashcroft 1245B5 delivers unmatched accuracy, durability, and ease of maintenance, reinforcing its reputation as a trusted workhorse in industrial instrumentation.

### **Pros and Cons of buying a Ashcroft 1245B5 4.5" Duragauge (0-300 psi, 316SS Diaphragm Seal, 1 ft ft, 300 RF)**

1. **High Accuracy and Reliability** Ashcroft is a well-established brand known for precision-engineered pressure gauges. The Duragauge series is designed for industrial applications where accuracy is critical, ensuring consistent readings within specified tolerances.

2. **Durability and Robust Construction** The 4.5" dial size provides better visibility and readability, while the 316 stainless steel diaphragm seal ensures resistance to corrosion, making it suitable for harsh environments (e.g., chemical plants, marine, or food processing).

3. **Wide Pressure Range (0-300 psi)** The gauge covers a broad operational range, making it versatile for various applications, including hydraulic systems, pneumatic testing, and process monitoring.

4. **Remote Mounting Capability (1 ft ft, 300 RF)** The 1-foot remote flange (RF) allows for safe distance from the process fluid, reducing exposure to high-pressure or hazardous media. This is particularly useful in environments where direct mounting would be unsafe.

5. **Compatibility with Sanitary and Hygienic Applications** The 316SS diaphragm seal is often used in industries requiring strict cleanliness (e.g., pharmaceuticals, food and beverage), as it minimizes contamination risks.

6. **Easy Installation and Maintenance** Ashcroft gauges are designed for straightforward installation, and the diaphragm seal can be replaced without removing the gauge from service, reducing downtime.

7. **Long-Term Performance** High-quality materials and construction reduce the likelihood of leaks or failures over extended use, providing cost-effective reliability.

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1. **Higher Upfront Cost** Compared to basic pressure gauges, the Ashcroft Duragauge with a diaphragm seal is more expensive due to its precision, materials, and remote mounting features. This may be a barrier for budget-conscious buyers.

2. **Potential for Seal Wear Over Time** While durable, diaphragm seals can degrade with prolonged exposure to abrasive or chemically aggressive media, requiring periodic inspection or replacement.

3. **Limited Pressure Range for Some Applications** The 0-300 psi range may be insufficient for high-pressure systems (e.g., oil refineries, heavy machinery), necessitating a different gauge model.

4. **Specialized Installation Requirements** Remote mounting adds complexity to installation, requiring proper piping and sealing to prevent leaks. Improper setup could compromise performance.

5. **Maintenance Dependency** Regular calibration and seal checks are recommended to ensure accuracy, which may add to operational costs if not managed properly.

6. **Size and Space Constraints** The 4.5" dial is larger than standard gauges, which may not fit in compact instrumentation panels or confined spaces.

7. **Potential for Overkill in Low-Stress Applications** If the gauge is used in a low-risk environment where basic protection is sufficient, the added features (e.g., remote seal) may not justify the cost.

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The Ashcroft 1245B5 Duragauge with a 316SS diaphragm seal is an excellent choice for applications requiring **high accuracy, corrosion resistance, and remote monitoring** in demanding environments. Its durability and precision make it ideal for industries like chemical processing, food production, or marine systems where reliability is paramount. However, its **higher cost, maintenance needs, and specialized requirements** may not be justified for simpler or low-pressure applications.

- You need a **long-term, high-precision gauge** for corrosive or hazardous conditions.

- Remote mounting is necessary for safety or space constraints.

- Your application falls within the **0-300 psi range** and requires 316SS compatibility.

- Budget allows for a premium, durable instrument with minimal long-term replacement risks.

- You are working with **low-pressure or non-corrosive media** where a standard gauge would suffice.

- Cost is a major concern, and a lower-end gauge meets your needs.

- The installation environment lacks the space or expertise for proper remote mounting.

For most **industrial, sanitary, or high-reliability applications**, the Ashcroft 1245B5 is a strong investment. However, always verify compatibility with your specific process conditions before purchasing.

Details:

Performance vibration dampening. Items are not returnable for condition issues commented on or shown in the pictures. Ashcroft 4.5 Duragauge Plus 0-300 PSI 316SS with PIC 1 300# RF Diaphragm Seal: Pressure Range: to 300 pounds per square inch Dial Size: 4-1/2 inch 115mm solid front safety design Whetted Materials: AISI 316 Stainless Steel tube and socket Pi Components model 1245B5 Off-line / Flanges type Process Connection: Raised Face flange Construction: Welded case-to-socket welded diaphragm-to-upper-housing Features: Micro-adjustable pointer. VB Industrial Supply offers a huge selection of tools for every trade including new and used electrical, mechanical, hydraulic pneumatic industrial components supplies.

VB Industrial Supply takes great pride to honestly and accurately describe each item listed. Quality Guarantee. If you ever have any questions or are unsatisfied, for reason please let us know. Quick Delivery.

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part #: 1245b5 price

• $99.99

specifications pressureswitchiz:

• brand: Ashcroft
• mpn: 1245b5
• part type: Seal

seller pressureswitchiz:

• city: Ventura, California
• # reviews: 25095
• rating: 99.9%

payments pressureswitchiz:

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

shipping pressureswitchiz:

• carrier: UPS
• transit: 4-8 Days
• cost: $0.00
• class: Standard, Expedited, One-day
• type: Fixed
• service: UPS Ground, UPS 2nd Day Air, UPS Next Day Air

general pressureswitchiz:

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

offer pressureswitchiz:

• availability: In Stock
• best offers: True
• started: February 26, 2026
• quantity: 1
• sold: 0
• options: Ship-to-home

returns pressureswitchiz:

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

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