Description
RAS Positive-Pressure Airline Respirator with Tempest Valve
The 3M™ Scott™ RAS (Respiratory Airline Supply) Positive-Pressure Airline Breathing Apparatus, model 2026501, is designed for use in environments with high levels of particulate or aerosol contamination. The system incorporates a Tempest demand valve that maintains positive pressure within the facepiece and provides an assigned protection factor (APF) of 2000 when connected to a suitable air supply. The apparatus is intended for demanding industrial applications where a high level of respiratory protection is required.
Key Features
- ✅ Positive-pressure airline breathing apparatus with Tempest demand valve
- ✅ Assigned Protection Factor (APF) 2000 when used with an airline supply
- ✅ Designed for high-contamination environments
- ✅ Robust fabric webbing bandolier harness for regular heavy-duty use
- ✅ Compatible with Scott™ Promask and Vision facepieces
- ✅ Optional RAS face mask configuration supports entry and egress using a negative-pressure filter
- ✅ CEN airline connection fitting
- ✅ Approved to EN 14593-1:2005 and AS/NZS 1716:2012
- ✅ Open-circuit supplied-air respiratory protection system
Benefits
- 🛡️ Provides one of the highest levels of respiratory protection available for supplied-air systems.
- 🛡️ Positive-pressure operation helps reduce inward leakage into the facepiece.
- 🛡️ Durable fabric harness withstands frequent industrial use.
- 🛡️ Suitable for environments with elevated airborne particulate contamination.
- 🛡️ Flexible facepiece compatibility allows integration with approved Scott respiratory components.
- 🛡️ Comfortable bandolier-style carrying arrangement helps distribute equipment weight.
Specifications
| Brand | 3M™ Scott™ |
| Model | RAS Respiratory Airline Supply |
| Part Number | 2026501 |
| Product Type | Supplied-Air Respirator / Airline Breathing Apparatus |
| Operating Pressure Type | Positive Pressure |
| Demand Valve | Tempest |
| Assigned Protection Factor | APF 2000 |
| Harness Type | Bandolier |
| Harness Material | Polyester Fabric Webbing |
| Connection Type | Compressed Air Line |
| Fitting Type | CEN Coupling |
| Compatible Facepieces | Scott™ Promask, Scott™ Vision |
| In-line Air Filter Included | No |
| RFID Equipped | No |
| Warranty | 1 Year |
| Certifications | EN 14593-1:2005, AS/NZS 1716:2012 |
How to Use
- Inspect the apparatus, airline connections, harness and facepiece before use.
- Connect the respirator to an approved compressed-air supply using the CEN coupling.
- Don the compatible Scott facepiece and adjust for a secure seal.
- Confirm airflow and correct operation of the Tempest demand valve.
- Enter the work area only after proper system checks have been completed.
- Leave the contaminated area immediately if the airline supply is interrupted.
- Clean, inspect and store the apparatus according to manufacturer instructions after use.
⚠️ This respirator must be connected to a suitable compressed-air supply to provide its rated positive-pressure respiratory protection.
⭐⭐⭐⭐⭐ “Reliable airline respirator for demanding industrial work. The harness is durable and comfortable.” — Michael S.
⭐⭐⭐⭐⭐ “Excellent protection factor and dependable airflow when connected to our airline system.” — Andre P.
⭐⭐⭐⭐⭐ “A robust Scott system that performs well in contamination-controlled environments.” — Kevin R.
FAQs
What is the APF rating of this respirator? The system provides an assigned protection factor of 2000 when used in accordance with applicable regulations and connected to an approved airline supply.
What type of respirator is it? It is an open-circuit positive-pressure supplied-air respirator.
Which facepieces are compatible? The respirator is compatible with approved Scott™ Promask and Vision facepieces.
What industries commonly use this system? It is suitable for applications involving high levels of airborne particulate or aerosol contamination.
Does this model include an in-line air filter? The standard 2026501 airline apparatus specification lists no in-line air filter included.
What harness does this version use? This model uses a robust polyester fabric webbing bandolier harness designed for regular heavy-duty use.
Is the respirator certified? Yes. It is approved and CE marked to EN 14593-1:2005 and AS/NZS 1716:2012.
Industries & Applications
- 🏭 Manufacturing Facilities
- ⚙️ Industrial Maintenance
- 🧪 Chemical Processing Operations
- 🏗️ Construction Projects
- 🚧 Demolition Work
- ⛏️ Mining Operations
- 🛠️ Engineering Workshops
- ☣️ High-Particulate Contamination Environments
- 💨 Aerosol Exposure Applications
Compliance & Certifications
- ✅ EN 14593-1:2005
- ✅ AS/NZS 1716:2012
- ✅ CE Marked
Choose the 3M™ Scott™ RAS 2026501 for dependable supplied-air respiratory protection, proven positive-pressure performance, and compatibility with trusted Scott facepiece systems used across demanding industrial environments.
