Durable and reliable Tempest positive-pressure demand valve with hands-free bypass and automatic first-breath activation
Airline-compatible version (AC) allows for connection to remote air supply systems, enabling extended operations
Split Demand Valve Coupling (SDC) provides safe and efficient cylinder switching or dual-user rescue configurations
Robust and lightweight backplate with anti-static, chemical-resistant composite design
Kevlar® blend harness and Proban® padding for flame resistance, comfort, and easy cleaning
Stainless steel swivel hose connections and high-burst pressure-rated hoses for long-term safety
Compatible with 4.7L to 9L, 200 or 300 bar Scott cylinders
No face mask included in this variant—ideal for modular setups or replacements
Commonly used in firefighting, marine rescue, chemical handling, and confined space applications
The 3M™ Scott™ ProPak Sigma SCBA with Split Demand Valve Coupling (SDC) and Airline Coupling (AC) is a Type 2 open-circuit self-contained breathing apparatus (SCBA) designed to meet the demanding needs of firefighting, rescue, and marine operations. The unit features a Tempest demand valve, Kevlar® harness, lightweight backplate, and airline connection capability. This configuration (Part Code: PROPAK-SIGMA-SDC-AC, Article: 2027155) is supplied without a facemask, allowing flexibility for users who already have compatible masks. Its tough build and safety features make it ideal for IDLH environments.
Typical Properties
| Property | Value |
|---|---|
| Brands | 3M™ Scott™ |
| Harness Material | Kevlar® blend with Proban® padding |
| Demand Valve Type | Tempest (positive-pressure, first-breath, hands-free bypass) |
| Airline Compatibility | Yes (Airline Coupling - AC) |
| Cylinder Compatibility | 4.7L–9L, 200 or 300 bar Scott cylinders |
| Supplied Mask | Not included |
| Weight (approx.) | ~2.6 /kg (apparatus only, excluding mask and cylinder) |
| Application | Firefighting, marine, chemical, rescue, confined spaces |
Malaysia
