PRO QS - 401AP FUEL TRAIN
A complete plug and play solution with double block and precision temperature control through 4-20mA.
GET A QUOTEPRO QS - 401AP FUEL TRAIN
Precision Control: Double Block with 4-20mA Temperature Control
401AP offers the complete package for safety and control. Using Profire’s 4-20 mA actuated TCV, 6.5 C/I approved solenoids, and double block main shutdown, the 401AP allows safe ignition, soft start, consistent temperature control, and emergency shutdown. This fuel train is designed for applications between 0-5 MMBTU.
- INSTALLATION – Pre-assembled
- BTU RATING – 0-5MMBTU
- ADVANTAGES – Safe ignition, soft start, consistent temperature control, and emergency shutdown
- COMPLIANCE – Double block main shutdown

EFFICIENCY. CONSISTENCY. FLEXIBILITY.
The PRO QS Series of pre-assembled fuel trains have been designed for ease of installation and maintenance in a compact form factor. When paired with a Profire BMS controller, the PRO QS supports efficient installations, and will provide control, safety, and reliability for your process heating equipment.

WHY THE PRO-QS FUEL TRAIN SERIES?
REDUCE COST & COMPLEXITY
• Mechanically and electrically pre-assembled
• Factory function tested
• Simplified field installation
INCREASE EFFICIENCY
• Plug and play solution
• Build/Specification
• Painless procurement
FLEXIBLE CONFIGURATION OPTIONS
• Designed for applications up to 5MM BTU/hr
• 24VDC / 12VDC low power
• Left or right inlet designs
• Mounting options to support your application
• PF2100, PF2200, PF3100 compatible
• PRO Installation kits
• PRO Inlet Regulator Assembly

READY TO MOUNT WHEREVER YOU NEED
Whether you need to mount this directly to a flame arrestor, a cabinet, a wall, or set up by itself we've pre-built a mounting solution for you. Yep. We've thought of everything.
Need something different? We will build out exactly what you need.

GET YOUR BMS COMPARISON GUIDE
Download Profire’s complete burner management comparison guide to find which controller best fits your applications.
GET THE GUIDETHE PRO-QS FTS HAS BEEN PURPOSE BUILD TO
- SIMPLIFY PROCUREMENT
- CREATE CONSISTENCY & EFFICIENCY
- STAY OPERATIONALLY COMPLIANT
- ELIMINATE SURPRISES IN THE FIELD
SPEAK WITH A BMS EXPERT
A Profire Specialist Will Contact You Within 24 Hours