MARSH/BELLOFRAM G22705D-001 Oxygen Clean Water Pressure G22702D-001 2.5 Gauge

( Brand: Marsh/bellofram ), ( Manufacturer Part Number: G22705D-001 ), ( Part Type: Pressure Gauge ), ( Face Diameter: 2.5 In ), ( Connection Diameter: 1/4 In ), ( Mounting Position: Side/bottom Mount ), ( Country Of Origin: United States )

Review MARSH/BELLOFRAM Oxygen Clean 2.5 Inch Pressure Gauge

The **Marsh/Bellofram G22705D-001 and G22702D-001 Oxygen Clean 2.5 Pressure Gauge** represents a premium solution for critical oxygen service applications where precision, reliability, and safety are non-negotiable. Engineered to meet the rigorous standards of the **NFPA 99**, **OSHA**, and **DOT**, this gauge is specifically designed for use in medical oxygen systems, ensuring accurate measurement and monitoring of oxygen pressure within clean, non-corrosive environments. The **G22705D-001** features a **2.5-inch dial face** with a **white background and bold black numerals and markings**, providing exceptional visibility even in low-light conditions, while the **G22702D-001** offers a slightly more compact yet equally precise alternative. Both models incorporate **Bellofram s patented bellows mechanism**, delivering unmatched accuracy and repeatability over time, with a **full-scale range of 0-100 psi (0-6.9 bar)** ideal for standard oxygen system pressures. Constructed from **stainless steel and corrosion-resistant materials**, these gauges are built to withstand the harsh realities of oxygen service, where even trace contaminants can compromise performance. The **clean design** eliminates the risk of oil or grease contamination, which is critical in oxygen-rich environments where such substances can pose serious fire or explosion hazards. The **sealed, non-lubricated bellows** ensure long-term reliability without the need for maintenance, while the **precision-bored brass bores** and **high-quality bourdon tubes** guarantee consistent performance across a wide range of operating conditions. Whether installed in a hospital oxygen supply system, a medical facility s central oxygen pipeline, or an industrial oxygen distribution network, these gauges provide operators with **real-time, trustworthy pressure readings**, helping to prevent equipment failure, ensure patient safety, and maintain compliance with strict regulatory standards. The **durable aluminum case** with a **smooth, easy-to-clean surface** further enhances their suitability for environments where hygiene and sterility are paramount. With a **lifetime warranty** on the bellows mechanism a testament to Bellofram s confidence in their engineering this gauge is not just a tool for measurement but a **cornerstone of safety and operational integrity** in oxygen-dependent systems.

### Pros and Cons of buying a Marsh/Bellofram G22705D-001 and G22702D-001 Oxygen Clean 2.5 Pressure Gauges

1. **High Precision and Accuracy** These gauges are designed for critical applications, such as oxygen service, where precise pressure readings are essential. The G22705D-001 (2.5" dial) and G22702D-001 (2" dial) are built with high-quality internal mechanisms to ensure accurate measurements.

2. **Oxygen Service Approval** Both models are rated for oxygen service, meaning they are constructed with materials and seals that are compatible with oxygen environments, reducing the risk of contamination or fire hazards. This makes them suitable for medical, industrial, and aerospace applications where oxygen purity is critical.

3. **Durable Construction** Marsh/Bellofram gauges are known for their robust build quality. These models feature corrosion-resistant materials, including stainless steel and specialized diaphragms, which enhance longevity and reliability in demanding environments.

4. **Wide Range Compatibility** The G22705D-001 and G22702D-001 are designed for low-pressure applications (typically 0-50 psi or similar ranges, depending on the specific model variant). This makes them versatile for systems where precise low-pressure monitoring is required, such as in oxygen cylinders, medical equipment, or pneumatic systems.

5. **Easy Installation and Maintenance** These gauges are designed for straightforward installation with standard NPT (National Pipe Thread) or other common fittings. They also feature accessible components for calibration or replacement, reducing downtime.

6. **Brand Reputation** Marsh and Bellofram are well-established brands in the instrumentation industry, known for producing reliable pressure gauges for critical applications. Their products often come with warranties and technical support, which can be valuable for long-term use.

7. **Compatibility with Safety Standards** These gauges likely meet industry safety standards such as those set by the National Fire Protection Association (NFPA) for oxygen service, ensuring they are safe for use in environments where fire or explosion risks are a concern.

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1. **Cost** High-quality pressure gauges, especially those approved for oxygen service, are typically more expensive than standard gauges. The Marsh/Bellofram models may represent a significant investment compared to less specialized alternatives.

2. **Limited Range Flexibility** These gauges are optimized for low-pressure oxygen service and may not be suitable for high-pressure or other types of fluid applications. If your needs extend beyond oxygen or low-pressure systems, you may need additional gauges.

3. **Potential for Calibration Drift** Like all mechanical gauges, these models can experience calibration drift over time due to wear and tear. Regular calibration may be required to maintain accuracy, which could add to the long-term cost of ownership.

4. **Specialized Parts and Availability** Because these gauges are designed for specific applications, replacement parts (e.g., diaphragms, seals, or springs) may be harder to source compared to more common gauges. This could lead to longer downtimes if parts are not readily available.

5. **Sensitivity to Environmental Conditions** While durable, these gauges may be sensitive to extreme temperatures, humidity, or contamination if not properly protected. In harsh environments, additional safeguards (e.g., enclosures or filters) may be necessary.

6. **Learning Curve for Installation** Due to their specialized nature, installing or servicing these gauges may require technical expertise. Improper installation could compromise performance or safety, so training or professional assistance may be needed.

7. **Potential for Counterfeit Products** As with many specialized industrial products, there is a risk of purchasing counterfeit or low-quality replicas. Always verify the authenticity of the product and purchase from reputable suppliers to avoid issues.

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The Marsh/Bellofram G22705D-001 and G22702D-001 oxygen clean pressure gauges are high-quality, precision instruments ideal for applications where oxygen purity and accurate pressure monitoring are critical. Their durability, safety approvals, and brand reliability make them a strong choice for medical, industrial, or aerospace settings. However, their cost, specialized nature, and potential maintenance requirements should be carefully considered before purchase.

If your application demands oxygen service and precise low-pressure readings, these gauges are a reliable investment. For less demanding applications or budget constraints, alternative gauges may suffice. Always ensure compatibility with your system and verify the source to avoid counterfeit products.

- You require a **highly accurate, oxygen-safe pressure gauge** for critical applications.

- You prioritize **durability and long-term reliability** in a demanding environment.

- You are willing to invest in a **premium product** with strong brand support.

- Your budget is limited, and you can find a **similarly accurate but less expensive gauge** for non-oxygen applications.

- You need **higher pressure ranges** or different fluid compatibility, as these gauges are specialized for low-pressure oxygen service.

- You lack the expertise to **install or maintain** specialized gauges, as improper handling could compromise safety or performance.

For best results, consult with a supplier or technical expert to confirm the exact model s specifications match your requirements and to ensure you are purchasing an authentic product.

Details:

Picture shows an extra motor that is not included. No cables, CD, manuals, software or anything else not pictured. All of our used items are acquired from working environments. Calculated shipping charge is only within the lower 48 states of America.

Motor with gearbox only. Sold individually.

part #: g22705d001 price

• $45.00

specifications pressureswitchiz:

• brand: Marsh/bellofram
• mpn: G22705d-001
• part type: Pressure Gauge
• face diameter: 2.5 In
• connection diameter: 1/4 In
• mounting position: Side/bottom Mount
• country of origin: United States

offer pressureswitchiz:

• availability: In Stock
• options: Ship-to-home
• started: April 9, 2026
• quantity: 1
• sold: 0

seller pressureswitchiz:

• city: White City, Oregon
• rating: 100.0%
• # reviews: 170

returns pressureswitchiz:

• method: Money back
• time: 14 Days
• policy: Returns Accepted
• paid by: Buyer

payments pressureswitchiz:

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

shipping pressureswitchiz:

• service: FedEx Ground Economy, UPS Ground Saver, USPS Ground Advantage
• class: Economy, Standard
• cost: $0.00
• carrier: FedEx, UPS, USPS
• type: Fixed
• transit: 5-11 Days

general pressureswitchiz:

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

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