ST54

  • ST54 header

ST54 - Enhanced Multi-Mission Tactical Operators SCBA

Avon’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.

ST54 product
ST54Brochure 1

For further information
please download the ST54 brochure

DOWNLOAD

ST54 HCDV

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
ST54 gauge

Gauge & Whistle

  • Integrated assembly; easy access
  • Illuminated gauge for low-light situations in black or luminescent back grounds



ST54 backframe

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
ST54 stealth

Stealth Appearance

  • Black low profile design
  • Designed by special operations and LE forces
  • Low pressure alarm can be disengaged
Breathing Performance SCBA Mode Breathing Performance PAPR Mode
Breathing rate 103 lpm Breathing rate 120-130 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 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
Live Agent Performance
Challenge chemical Requirements Actual Test agent NIOSH CBRN requirements Typical performance
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 Sarin (GB) 6 Hours > 6 Hours
Mustard (HD)  0.087 6 0.005 0.800 Mustard (HD) 6 Hours > 6 Hours
Material 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
Cylinders
Part Number Pressure (psi) Material Free Air Capacity NIOSH Rated Duration @ 40 lpm Cylinder & Valve Charged Weight Cylinder Diameter Hydrostatic Interval
124053 4500 Full wrapped carbon, black 1274 liters
45 cu. ft.
30 min. 11.0 lbs. 5.4 in.  5 years
124054 1840 liters
65 cu. ft.
45 min. 14.8 lbs. 6.3 in.
124055 2462 liters
88 cu. ft.
60 min. 19.2 lbs. 6.9 in.
124028 4500 Full wrapped carbon, neutral 1274 liters
45 cu. ft.
30 min. 11.0 lbs. 5.4 in.
124029 1840 liters
65 cu. ft.
45 min. 14.8 lbs. 6.3 in.
124030 2462 liters
88 cu. ft.
60 min. 19.2 lbs. 6.9 in.
602318 5500 Full wrapped carbon, black 3113 liters
110 cu. ft.
70 min. 20.4 lbs 7.1 in.

Approvals

  • 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.
  • 30, 45, and 60 minute cylinders

    Avon’s complete offering of low profile, light weight compressed air cylinders include air durations of 30, 45 and 60 minutes in either 2216 psi or 4500 psi configurations. 

  • BlueBlocker Outsert

    Designed for specialist use to improve weapon sighting. Delivers sharper images by filtering out specific light wavelengths. Constructed from flexible polycarbonate providing additional impact and scratch resistance.

  • Clear Outsert

    Flexible polycarbonate outsert that simply attaches to 50 series masks to provide additional impact and scratch resistance in extreme environments. ...... ..... . ....... ........ ......

  • Gen II Voice Projection Unit (VPU)

    Provides integrated voice communications capability with internal microphone for both radio and voice projection use. Low profile design to allow for non-obstructed rifle sighting and easier operation.

  • Laser Outsert

    Specialist accessory for the removal of harmful laser wavelengths commonly produced by laser sighted weapons. Constructed from flexible polycarbonate providing additional impact and scratch resistance.

  • Mirrored Outsert

    Provides protection from UV light and improves contrast and depth perception. It also hides the wearer’s eyes while reflecting the surroundings to provide psychological advantages in threat situations.

  • Shade 5 Outsert

    Provides the wearer with additional eye protection when plasma arc cutting (PAC). Constructed from flexible polycarbonate providing additional impact and scratch resistance.

  • Sunlight Outsert

    Additional protection against high level UV light and flash flares. Constructed from flexible polycarbonate providing additional impact and scratch resistance.