ST54

Enhanced Multi-Mission Tactical Operator SCBA

Avon Protection's state-of-the-art ST54 Tactical Operator SCBA has been developed specifically for the tactical officer and technician applications where the operator needs to respond to ever changing operational conditions.

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.

Suitable for:

  • First Responders
  • Military
  • Special Forces

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.

Features and Benefits

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

Technical Specifications

Technical Data
Breathing Performance SCBA Mode
Breathing rate 103 lpm
Environmental range -30 ° to +60 ° C
End of cylinder air Able to sustain positive pressure down to 10 Bar (145 psi) cylinder pressure
Breathing Performance PAPR Mode
Breathing rate 120-130 lpm
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 50mm of water at 85 lpm
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 Glass reinforced polycarbonate
Cylinder valve Nickel-plated brass
CS-PAPR CBRN hardened butyl and PPE

 

Live Agent Performance
 RequirementsActual
Challenge chemical Max Peak (mg/m3) Max Cumulative (mg-min/m3) Max Peak (mg/m3) Max Cumulative (mg-min/m3)
Sarin (GB)  0.600 6 0.004 0.203
Mustard (HD)  0.087 6 0.005 0.8
Test agent NIOSH CBRN requirements Typical performance
Sarin (GB) 6 Hours > 6 Hours
Mustard (HD) 6 Hours > 6 Hours

 

Cylinders
Part NumberPressure (psi)MaterialFree Air CapacityNIOSH Rated Duration @ 40 lpmCylinder & Valve Charged WeightCylinder DiameterHydrostatic Interval
124053 4500 Full wrapped carbon, black 1274 liters 30 min. 11.0 lbs. 5.4 in.  5 years
45 cu. ft.
124054 1840 liters 45 min. 14.8 lbs. 6.3 in.
65 cu. ft.
124055 2462 liters 60 min. 19.2 lbs. 6.9 in.
88 cu. ft.
124028 4500 Full wrapped carbon, neutral 1274 liters 30 min. 11.0 lbs. 5.4 in.
45 cu. ft.
124029 1840 liters 45 min. 14.8 lbs. 6.3 in.
65 cu. ft.
124030 2462 liters 60 min. 19.2 lbs. 6.9 in.
88 cu. ft.
602318 5500 Full wrapped carbon, black 3113 liters 70 min. 20.4 lbs 7.1 in.
110 cu. ft.

The Avon ST54 SCBA carries a NIOSH Industrial Approval under the provisions of 42 CFR 84 TC-13F in a variety of cylinder and facepiece size combinations.

Resources and Downloads

Technical Documents

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