Pro-Flex
Pro-Flex Flak Jacket 3/4" Arc-Resistant CSST Tubing
- Availability:
- Usually Ships in 5-7 Business Days
- Weight:
- 0.00 LBS
Description
Pro-Flex Flak Jacket 3/4" Arc-Resistant CSST Tubing
Pro-Flex Flak Jacket 3/4" Arc-Resistant CSST Tubing provides a flexible gas piping solution with a proprietary black jacket designed to help protect the tubing by dissipating electrical energy. It is intended for natural-gas and propane piping applications where an arc-resistant CSST system is specified.
These models feature 3/4" ID CSST tubing and are available in 25-foot, 75-foot, 150-foot, 225-foot, and 500-foot lengths. The Pro-Flex product guide lists the 25-foot and 75-foot versions as coils and the 150-foot, 225-foot, and 500-foot versions as spools.
Product Highlights
- 3/4" ID Pro-Flex Flak Jacket arc-resistant CSST
- Black proprietary protective jacket
- Designed for natural-gas and propane piping systems
- Manufacturer identifies no additional bonding requirements for Flak Jacket CSST
- Proprietary jacket is designed to dissipate electrical energy
- Uses the same Pro-Flex fitting system as Yellow Jacket CSST
- Available in 25', 75', 150', 225', and 500' lengths
- 25' and 75' models supplied as coils
- 150', 225', and 500' models supplied as spools
- Available as Pro-Flex part numbers PFARCT-3425, PFARCT-3475, PFARCT-34150, PFARCT-34225, and PFARCT-34500
Available Models
| Part Number | Tube Size | Description |
|---|---|---|
| PFARCT-3425 | 3/4" | 3/4" ID CSST Tubing x 25' Coil - Arc-Resistant CSST (Black Jacket) |
| PFARCT-3475 | 3/4" | 3/4" ID CSST Tubing x 75' Coil - Arc-Resistant CSST (Black Jacket) |
| PFARCT-34150 | 3/4" | 3/4" ID CSST Tubing x 150' Spool - Arc-Resistant CSST (Black Jacket) |
| PFARCT-34225 | 3/4" | 3/4" ID CSST Tubing x 225' Spool - Arc-Resistant CSST (Black Jacket) |
| PFARCT-34500 | 3/4" | 3/4" ID CSST Tubing x 500' Spool - Arc-Resistant CSST (Black Jacket) |
Technical Specifications
| Manufacturer | Pro-Flex |
|---|---|
| Product Line | Flak Jacket |
| Product Type | Arc-Resistant Corrugated Stainless Steel Gas Tubing (CSST) |
| Tube Size | 3/4" |
| Tubing ID | 3/4" |
| Jacket | Black Proprietary Arc-Resistant Jacket |
| Available Lengths | 25', 75', 150', 225', and 500' |
| PFARCT-3425 | 25' Coil |
| PFARCT-3475 | 75' Coil |
| PFARCT-34150 | 150' Spool |
| PFARCT-34225 | 225' Spool |
| PFARCT-34500 | 500' Spool |
| Fitting Compatibility | Pro-Flex Fitting System |
| Primary Applications | Natural-Gas and Propane Gas Piping |
What Is Flak Jacket Arc-Resistant CSST?
Flak Jacket is Pro-Flex's arc-resistant corrugated stainless steel gas tubing product. Like traditional CSST, the tubing provides a flexible alternative to rigid gas piping and can be routed through building structures with fewer directional fittings than many black steel piping layouts.
The distinguishing feature of Flak Jacket is its proprietary black jacket. Pro-Flex states that the jacket provides protection by dissipating electrical energy and identifies the product as requiring no additional bonding beyond the applicable system installation requirements.
Flak Jacket CSST uses the same Pro-Flex fitting system as the manufacturer's Yellow Jacket CSST.
Why Choose Flak Jacket CSST?
Arc-Resistant Jacket
- Proprietary black jacket
- Designed to dissipate electrical energy
- Arc-resistant CSST construction
- Alternative to traditional yellow-jacket CSST
- Intended for compatible gas piping installations
Flexible Gas Piping
- Flexible routing through building structures
- Can reduce the number of directional fittings
- Useful for long or complex piping runs
- Available in long continuous lengths
- Uses the Pro-Flex CSST fitting system
Available Lengths
PFARCT-3425 – 25' Coil
The PFARCT-3425 provides 25 feet of 3/4" ID Flak Jacket arc-resistant CSST. The shorter coil is useful for installations where a limited tubing length is required.
PFARCT-3475 – 75' Coil
The PFARCT-3475 provides 75 feet of 3/4" ID Flak Jacket arc-resistant CSST, providing additional continuous tubing for medium-length gas piping runs.
PFARCT-34150 – 150' Spool
The PFARCT-34150 provides 150 feet of 3/4" ID Flak Jacket arc-resistant CSST supplied on a spool for longer continuous installations.
PFARCT-34225 – 225' Spool
The PFARCT-34225 provides 225 feet of 3/4" ID Flak Jacket arc-resistant CSST supplied on a spool for extended gas piping runs.
PFARCT-34500 – 500' Spool
The PFARCT-34500 provides 500 feet of 3/4" ID Flak Jacket arc-resistant CSST supplied on a spool for larger projects requiring substantial continuous tubing footage.
Common Applications
Residential Gas Piping
- Gas distribution mains and branches
- Furnaces and boilers
- Water heaters
- Gas ranges and cooking equipment
- Fireplaces and other gas-fired appliances
Mechanical & Light-Commercial Systems
- Mechanical-room gas distribution
- Multiple-appliance gas systems
- Long gas piping runs
- Retrofit gas piping installations
- Projects specifying arc-resistant CSST
Flak Jacket System Features
The Pro-Flex product guide identifies Flak Jacket as its arc-resistant black CSST. The manufacturer states that it has no additional bonding requirements, uses the same reliable fitting system as Pro-Flex Yellow Jacket CSST, and incorporates a proprietary jacket designed to dissipate electrical energy.
Always follow the current Pro-Flex installation instructions and applicable fuel-gas and electrical requirements for the complete installation.
Standards & Listings
The Pro-Flex product guide identifies its CSST system with the ANSI LC1 / CSA 6.26 standard for fuel-gas piping systems using corrugated stainless steel tubing. The guide also lists CSA Group Certificate of Compliance #1174673 and IAPMO File #3669 for the Pro-Flex CSST system.
Verify current manufacturer documentation, listings, approvals, and local code requirements before installation.
Choosing the Correct Length
| Part Number | Length | Package Type | Typical Selection Consideration |
|---|---|---|---|
| PFARCT-3425 | 25' | Coil | Shorter gas piping runs |
| PFARCT-3475 | 75' | Coil | Medium-length continuous runs |
| PFARCT-34150 | 150' | Spool | Longer continuous installations |
| PFARCT-34225 | 225' | Spool | Extended continuous piping runs |
| PFARCT-34500 | 500' | Spool | Large projects and substantial tubing requirements |
Flak Jacket vs. Yellow Jacket CSST
Flak Jacket CSST
- Arc-resistant CSST product
- Black proprietary jacket
- Manufacturer states no additional bonding requirements
- Jacket designed to dissipate electrical energy
- Uses the Pro-Flex fitting system
Yellow Jacket CSST
- Traditional Pro-Flex CSST product
- Yellow protective jacket
- Manufacturer identifies bonding requirements
- Flexible alternative to black steel piping
- Uses the same Pro-Flex fitting system
Installation Considerations
- Confirm that 3/4" CSST provides sufficient capacity for the planned gas system.
- Size the tubing according to gas type, supply pressure, developed length, and connected appliance load.
- Use compatible Pro-Flex fittings and installation components.
- Follow current Pro-Flex Flak Jacket installation instructions.
- Follow the manufacturer's requirements regarding bonding and electrical protection.
- Protect tubing against physical damage where required.
- Use striker plates and protective devices where required by the installation.
- Properly support the tubing according to manufacturer requirements.
- Pressure-test and leak-test the completed gas piping system as required.
- Installation should be completed by qualified gas-piping personnel.
Pro-Flex Fitting Compatibility
Pro-Flex states that Flak Jacket CSST utilizes the same fitting system as its Yellow Jacket CSST. This allows compatible Pro-Flex fittings, tees, unions, termination fittings, and other system components to be selected according to the tubing size and piping configuration. :contentReference[oaicite:4]{index=4}
Always verify the exact fitting size and current manufacturer compatibility before ordering or installing system components.
Need Help Selecting Flak Jacket CSST?
Our industrial PVF specialists can help review your gas type, supply pressure, developed piping length, connected BTU load, tubing size, required coil or spool length, and Pro-Flex fitting requirements before you order.
Frequently Asked Questions
What size are these Flak Jacket CSST models?
All five models are 3/4" ID Pro-Flex Flak Jacket arc-resistant CSST tubing.
What lengths are available?
The listed models are available in 25', 75', 150', 225', and 500' lengths.
What is PFARCT-3425?
PFARCT-3425 is 3/4" ID Flak Jacket arc-resistant CSST supplied in a 25-foot coil.
What is PFARCT-3475?
PFARCT-3475 is 3/4" ID Flak Jacket arc-resistant CSST supplied in a 75-foot coil.
What is PFARCT-34150?
PFARCT-34150 is 3/4" ID Flak Jacket arc-resistant CSST supplied on a 150-foot spool.
What is PFARCT-34225?
PFARCT-34225 is 3/4" ID Flak Jacket arc-resistant CSST supplied on a 225-foot spool.
What is PFARCT-34500?
PFARCT-34500 is 3/4" ID Flak Jacket arc-resistant CSST supplied on a 500-foot spool.
What makes Flak Jacket CSST arc-resistant?
Pro-Flex states that the proprietary black jacket provides protection by dissipating electrical energy.
Does Flak Jacket CSST require additional bonding?
The Pro-Flex product guide states that Flak Jacket CSST has no additional bonding requirements. Installers should still follow all current manufacturer instructions and applicable code requirements.
Does Flak Jacket use different fittings than Yellow Jacket CSST?
No. Pro-Flex states that Flak Jacket utilizes the same fitting system as its Yellow Jacket CSST.
Who should install Pro-Flex Flak Jacket CSST?
CSST gas piping should be installed by qualified personnel according to current Pro-Flex installation instructions and applicable fuel-gas codes.
Important Ordering Notes
- All five models are 3/4" ID Pro-Flex Flak Jacket arc-resistant CSST.
- PFARCT-3425 contains 25 feet of tubing supplied as a coil.
- PFARCT-3475 contains 75 feet of tubing supplied as a coil.
- PFARCT-34150 contains 150 feet of tubing supplied as a spool.
- PFARCT-34225 contains 225 feet of tubing supplied as a spool.
- PFARCT-34500 contains 500 feet of tubing supplied as a spool.
- Flak Jacket features a proprietary black arc-resistant jacket.
- Pro-Flex states that Flak Jacket requires no additional bonding.
- Flak Jacket uses the same Pro-Flex fitting system as Yellow Jacket CSST.
- Confirm that 3/4" CSST provides adequate capacity for the gas load and developed piping length.
- Follow current Pro-Flex installation instructions and applicable fuel-gas and electrical requirements.
