Our inline double-block fuel train with precision control

401AP Inline Fuel Train

The Profire Inline Fuel Train series has been designed to simplify the procurement and installation process of your heated appliance. Providing premier solutions when paired with a Profire BMS Controller, we ensure you receive performance-driven, safe, and reliable products. The IFT Series has become the trusted specification for many of our customers because we deliver the control you need with double-block shutdown, soft start, and actuated TCV designs.

To complete your system, we also offer several durable mounting options designed to withstand the harshest environments. Many of our Inline Fuel Trains have been engineered to meet the NFPA 87 Standard for Fluid Heaters.

The Profire 401AP Inline Fuel Train

Precision Control: Double Block with 4-20mA Temperature Control

This fuel gas train is fully automated and equipped with a 4-20mA TCV that allows you to control the modulation of your burner while reducing burner gas consumption with automated temperature control. Its double-block shutdown design offers extended safety with 6.5 C/I approved solenoids, safe ignition, and a soft start.


Pre-assembled in-house before shipment


Safe ignition, soft start, consistent temperature control, and emergency shutdown

BTU Rating

Recommended to run
at 0-3.9 MMBTU


Z21.21, 6.5 C/I
approved solenoids

Download the 401AP Spec Sheet

401AP Inline Fuel Train P&ID


Compatible to work well with multiple Profire burner management controllers.

Available Assembly Options:

  • Pre-assembled Fuel-Train
  • Single Skid Stand
  • Double Skid Stand

Why Choose the 401AP Inline Fuel Train?

  • Pre-Assembled

    Completely pre-assembled

  • Double Block Shut Down

    Double-block main shutdown

  • Your Needs

    Designed for your needs

Tell us about your Application

A Profire Specialist Will Contact You Within 24 Hours