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ST53 Plus
The Avon ST53 Plus SCBA is a new product offering built from the revolutionary, field proven ST53™ multi-role Respiratory Equipment (RPE) system platform. It was developed specifically for specialist applications where the user needs to respond to ever changing operational conditions and incorporates the latest Avon fire hardened FM54 Air Purifying Respirator (APR).
The ST53 Plus SCBA combines the latest technological advancements of the FM54 APR providing Specialist Operators maximum level of protection to face, eyes and respiratory tract from Chemical, Biological, Radiological and Nuclear (CBRN), Riot Agents, Toxic Industrial Chemicals and Toxic Industrial Materials while maintaining extreme user flexibility as mission profiles change.
The ST53 Plus SCBA and new FM54 mask affords the user the ability to seamlessly switch from negative to positive pressure offering the operator with total flexibility to select the necessary level of protection quickly and efficiently while continuing to operate effectively.
Compact Demand Valve (CDV)
- 1st breath activated for "instant on"
- Rugged, compact design delivers high flow rates
- Screw-on-design allows for DIN 40 thread
Gauge & Whistle
- Located on shoulder straps for easy access
- Positioned for high noise environments and easy gauge reading
- Illuminated gauge for low-light situations
Stealth Appearance
- Black low profile design
- Lightweight compared to traditional SCBA units
- Silent operation for critical missions
Comfort
- Ergonomically contoured backframe for comfort
- Adjustable harness allows for quick donning/ doffing
- Padded shoulder straps for comfort
|
Technical Data | ||
|---|---|---|
| Breathing Performance in SCBA mode | ||
| Breathing Rate | 103 liters per minute with mask pressure above ambient | |
| Environmental range | The operating range is -30oC + 60oC | |
| End of cylinder air | Able to sustain positive pressure down to 10 bar cylinder pressure | |
| Breathing performance in ST PAPR Mode | Breathing rate | 125-165 liters per minute |
| Breathing performance in APR mode | |
| Breathing resistance | Exhalation breathing resistance of no greater than 20mm of water at 85 lpm in a negative pressure mode |
| Inhalation resistance including General Purpose Filter | 50 mm of water at 85 lpm |
| Live agent permeation performance (Data validated by ECBC, Edgewood Chemical Biological Center) |
|||||||
| Requirements | Actual | Test agent | NIOSH CBRN Requirements | Typical Performance | |||
| Challenge Chemical | Max Peak (mg/m3) | Max Cumulative (mg-min/m3) | Max Peak (mg-m3) | Max Cumulative (mg-min/m3 ) | |||
| Sarin (GB) | 0.6 | 6 | 0.004 | 0.203 | Mustard (HD) | 6 Hours | > 6 Hours |
| Mustard (HD) | 0.087 | 6 | 0.005 | 0.8 | Sarin (GB) | 6 Hours | > 6 Hours |
| Materials used | |
| Harness on ST53 SCBA | Kevlar webbing with stainless steel nylon hardware |
| Harness on ST53SD SCBA | Nylon Cordura |
| Backplate | Glass reinforced polycarbonate |
| Cylinder valve | Anodized Aluminum |
| ST-PAPR | GE Noryl with a 10% glass fill |
| Weight for ST53 units (based on empty cylinders) | Weight for ST53 Plus units (based on empty cylinders) | ||
| ST53 (excluding cylinder and mask) | 6.6 lbs | ST53SD 11 cu. ft (includes cylinder but no mask) |
5.2 lbs |
| Carbon fiber fully wrapped, 2216 psi, 30 minute | 7.75 lbs | ||
| Carbon fiber fully wrapped, 4500 psi, 30 minute | 7.4 lbs | ||
| Carbon fiber fully wrapped, 4500 psi, 45 minute | 9.9 lbs | ST53SD 17 cu. ft (includes cylinder but no mask) | 4.0 lbs |
| Carbon fiber fully wrapped, 4500 psi, 60 minute | 11.95 lbs | ||
| Weight for ST-PAPR | Weight for mask only | ||
| ST-PAPR without CDV, battery or cartridges | 2.5 lbs | Single Port FM53 mask (excluding filter) | 1.2 lbs |
| ST-PAPR without CDV, two general purpose filters and a lithium Sulphur Dioxide battery | 4.4 lbs | Dual Port FM53 mask (excluding filter) | 1.3 lbs |
Approvals
- Type-examination approval: PPE Regulation 2016/424/EU - Module B: Certificate CE 684849
- The Avon ST53 Plus SCBA carries a NIOSH Industrial Approval under the provisions of 42 CFR 84 TC-13F in a variety of cylinder and facepiece size combinations.
