ST54 Self-Contained Breathing Apparatus
Enhanced Multi-Mission Tactical Operator SCBA
Avon Protection offer three variations of the ST54, designed to meet the operator’s requirements. These systems combine with Avon Protection respirators to provide new and innovative modular breathing apparatus technology to provide positive pressure SCBA and/or PAPR capability.
Our latest variation of the ST54 boasts enhanced comfort, improved durability, optimized weapon sighting and conformity to the strict requirements of NFPA1986:2023 - the ST54 is designed to keep you moving, operating for longer and working more efficiently.
The ST54 SCBA is the base to a multi-mission Respiratory Protection System which provides for operational flexibility to the operator and mission commanders in the field to tailor the PPE response based on the available intelligence. Depending on the threat or operational situation at the scene of an incident, the ST54 SCBA can be configured to provide the appropriate protection.
The ST54 SCBA combines Avon Protection Systems’ M53A1, FM53 and FM54 respirators (see respirator datasheets for further details) with new and innovative modular breathing apparatus technology to provide positive pressure SCBA and/or PAPR capability. The ST54 system provides the operator with total flexibility to select the necessary level of protection quickly and efficiently without degradation of operational effectiveness. Designed with the tactical mission in mind, the system incorporates non-reflective black components and warning whistle, which can be silenced.
Hand Compact Demand Valve (H-CDV)
- 1st breath activated for “instant on”
- Rugged, compact design delivers high flow rates
- Screw-on design allows for DIN 40 thread
- Smallest on the market
Gauge & Whistle
- Integrated assembly; easy access
- Illuminated gauge for low-light situations in black or luminescent back grounds
Backframe
- Twin carrying and single drag handle for easy of mobility
- Ergonomically contoured for comfort- properly balances weight
- Lightweight for reduced fatigue
- Quick Disconnect buckles
Gauge & Whistle
- Integrated assembly; easy access
- Illuminated gauge for low-light situations in black or luminescent back grounds
Stealth Appearance
- Black low profile design
- Designed by special operations and LE forces
- Low pressure alarm can be disengaged
SPECIFICATIONS
| Breathing Performance SCBA Mode | |
|---|---|
| Breathing rate | 103 lpm |
| Environmental range | 0°F to +140°F |
| End of cylinder air | Able to sustain positive pressure down to 290 psi |
| 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 canister | 65 mmWC at 85 lpm initial, 80 mmWC at 85 lpm at end of service life |
| Materials Used | |
| 53/54 Series Masks | Chlorobutyl / silicone rubber and polyurethane visor |
| Harness on ST54 SCBA | Kevlar® webbing with stainless steel and nylon hardware |
| Backplate | Anodized aircraft aluminum |
| Cylinder valve | PTFE impregnated, hard anodized aluminum |
| Requirements | ||||||
|---|---|---|---|---|---|---|
| Challenge chemical | Challenge concentration (mg/m3) | Max Peak (mg/m3) | Max Cumulative (mg-min/m3) | Test agent | NIOSH CBRN requirements | Typical performance |
| Distilled Mustard (HD) | 300 for 30 min | 0.600 | 6.0 | Sarin (GB) | 6 hours | >6 hours |