3M Scott Safety ProPak-Sigma Firefighting Breathing Apparatus 3M Scott Safety ProPak-Sigma Firefighting Breathing Apparatus 3M Scott Safety ProPak-Sigma Firefighting Breathing Apparatus

3M Scott Safety ProPak-Sigma Firefighting Breathing Apparatus

The 3M Scott Safety ProPak-Sigma Firefighting Breathing Apparatus has been built for use in Marine or Industrial fire fighting environments as a compliance set.

Key Features

  • EN137:2006 Type 2 MED Approved Breathing Apparatus
  • Compliance set for Marine and Industrial firefighting environments
  • Rigid backframe construction
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3M Scott Safety

Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.

The ProPak-Sigma has been designed specifically for use as a compliance set in Marine or Industrial fire fighting environments.

The entire ProPak range has been approved to EN137:2006 Type 2, incorporating the stringent Full Flame Engulfment Test, and to the 9th amendment of the MED meaning that it has the latest approval for the Marine market.


Compact positive pressure demand valve featuring servo-assisted, tilting diaphragm mechanism with low inspiratory resistance and responsive dynamic performance, automatic first breath actuation and hands free bypass facility.


First stage pressure reducing valve featuring non-adjustable, spring loaded piston mechanism and outlet supply protected by pressure relief valve.


  • • Stainless steel swivel hose fittings
  • • Medium pressure hose
  • • High pressure hose
  • • Medium working pressure 16 bar
  • • Minimum burst pressure 80 bar
  • • Maximum working pressure 450 bar
  • • Minimum burst pressure 800 bar


Bourdon tube type dial indicator

Heat and Impact resistant polycarbonate lens


The Sabrecom2 is a radio communication interface designed for use with 3M Scott Safety's range of positive pressure full facemasks. Fully integrated and ready to use the Sabrecom 2 is approved to EN136 class 3, meeting the stringent flame and radiant heat test requirements.


The 3M Scott Safety ProPak-Sigma can be specified in many configurations including Duo, Split Demand Valve Coupling (SDC), Y Piece (Y2C) and attachments for Airline, which can be used for Rescue Second Man and Decontamination.

  • 2027156 PROPAK-SIGMA-PS (V2) ProPak Sigma is a self contained positive pressure breathing apparatus complete with PanaSeal positive pressure facemask in black Neoprene, lightweight rigid backplate with fully adjustable harness and adjustable webbing cylinder band. The backplate is manufactured from a lightweight composite material and includes a lumber pad. The fully adjustable body harness is fabricated from a flame retardent Kevlar blend webbing.
    Buckles and fittings are injection moulded from a corrosion resistant polyamide. The two stage pneumatic system features a first breath activated positive pressure demand valve, a first stage pressure reducing valve with an integral 200/300 bar cylinder connector and a shoulder mounted pressure gauge with 55 bar whistle.
    Apparatus accepts full range of Scott breathing apparatus cylinders from 4.7 to 9 litres capacity, 200 or 300 bar.*
    Apparatus is CE Marked to EN137:2006 Type 2 and MED approved
    *Please note to maintain the cylinder valve handwheel on the normal right hand side of the SCBA please order the cylinders fitted with the right angled valve. These cylinders have the suffix -RA

  • 2027157 PROPAK-SIGMA-VIS (V2) ProPak Sigma with Vision 3 facemask.

  • 2027150 PROPAK-SIGMA (V2) ProPak Sigma without facemask.

  • 2027152 PROPAK-SIGMA-AC (V2) ProPak Sigma fitted with Airline attachment*. (no mask)

  • 2027153 PROPAK-SIGMA-SDC (V2) ProPak Sigma fitted with Split demand valve (no mask)

  • 2027155 PROPAK-SIGMA-SDCAC (V2) ProPak Sigma fitted with Split demand valve and Airline attachment*. (no mask)

  • 2027154 PROPAK-SIGMAY2C( V2) ProPak Sigma fitted with Y-piece (2 CEN socket) in demand valve hose. (no mask)

  • * Please note the airline attachment has both air in and air out functionality so therefore serves as both an RSM and decontamination attachment as well as Airline.