Pro-Flex
Pro-Flex CSST Reducing Fittings
- Availability:
- Usually Ships in 5-7 Business Days
- Weight:
- 0.00 LBS
Description
Pro-Flex CSST Male Reducing Fittings
Pro-Flex CSST Male Reducing Fittings provide a transition from Pro-Flex corrugated stainless steel gas tubing to a smaller male threaded connection. These fittings are designed for applications where the CSST tube size must transition to a reduced MIP outlet while remaining within the Pro-Flex fitting system.
Available in 1" CSST x 3/4" MIP and 3/4" CSST x 1/2" MIP configurations, these fittings provide a compact reducing transition for compatible gas piping installations. The Pro-Flex product guide lists both models under its Male Reducing Fittings section.
Product Highlights
- Male reducing fittings for Pro-Flex CSST gas piping
- Provides a CSST-to-smaller-MIP transition
- Available for 1" and 3/4" Pro-Flex CSST
- 1" model reduces to a 3/4" MIP connection
- 3/4" model reduces to a 1/2" MIP connection
- Compact transition fitting for gas piping installations
- Part of the Pro-Flex CSST fitting system
- Suitable for properly designed natural-gas and propane piping systems
- Available as Pro-Flex part numbers PFRF-0134-06 and PFRF-3412-06
Available Models
| Part Number | Tube Size | Description |
|---|---|---|
| PFRF-0134-06 | 1" | 1" CSST x 3/4" MIP Pro-Flex Reducing Fitting |
| PFRF-3412-06 | 3/4" | 3/4" CSST x 1/2" MIP Pro-Flex Reducing Fitting |
Technical Specifications
| Manufacturer | Pro-Flex |
|---|---|
| Product Type | Male Reducing Fitting |
| Compatible Piping System | Pro-Flex CSST |
| Available CSST Sizes | 3/4" and 1" |
| PFRF-0134-06 Configuration | 1" CSST x 3/4" MIP |
| PFRF-3412-06 Configuration | 3/4" CSST x 1/2" MIP |
| Thread Type | Male Iron Pipe (MIP) |
| Configuration | CSST-to-MIP Reducing Transition |
| Primary Application | Reducing Threaded Transition in Pro-Flex Gas Piping Systems |
What Is a Pro-Flex Reducing Fitting?
A Pro-Flex reducing fitting provides a transition between a larger Pro-Flex CSST tube size and a smaller male threaded connection. This allows the gas piping system to transition directly from flexible CSST to compatible threaded piping, valves, or equipment connections while reducing the nominal outlet size.
The PFRF-0134-06 transitions from 1" CSST to a 3/4" MIP connection, while the PFRF-3412-06 transitions from 3/4" CSST to a 1/2" MIP connection.
Select the fitting according to both the CSST tube size and the required downstream male threaded connection.
Why Use a Reducing Fitting?
Direct Size Transition
- Reduces from a larger CSST size to a smaller threaded connection
- Eliminates the need for a separate reducer in some piping layouts
- Provides a compact transition point
- Useful where downstream components have smaller threaded inlets
- Available in two common reducing configurations
Pro-Flex System Connection
- Designed for Pro-Flex CSST installations
- Provides a male threaded outlet
- Matches specific Pro-Flex CSST tube sizes
- Useful for equipment, valve, and piping transitions
- Part of the Pro-Flex CSST fitting lineup
Available Reducing Configurations
PFRF-0134-06 – 1" x 3/4" MIP
The PFRF-0134-06 connects to 1" Pro-Flex CSST and provides a 3/4" MIP threaded outlet. It is intended for installations where a 1" CSST run must transition to a smaller 3/4" male threaded connection.
PFRF-3412-06 – 3/4" x 1/2" MIP
The PFRF-3412-06 connects to 3/4" Pro-Flex CSST and provides a 1/2" MIP threaded outlet. It is intended for installations where a 3/4" CSST run must transition to a smaller 1/2" male threaded connection.
Common Applications
Gas Piping Transitions
- CSST-to-threaded piping transitions
- Gas piping size reductions
- Mechanical-room gas piping
- Residential gas distribution
- Light-commercial gas piping systems
Equipment & Valve Connections
- Gas valve connections
- Appliance supply piping
- Water-heater connections
- Furnace and boiler gas piping
- Other compatible threaded gas-system components
Choosing the Correct Reducing Fitting
| Part Number | CSST Tube Size | MIP Outlet | Use When You Need |
|---|---|---|---|
| PFRF-0134-06 | 1" | 3/4" | 1" CSST to 3/4" male threaded transition |
| PFRF-3412-06 | 3/4" | 1/2" | 3/4" CSST to 1/2" male threaded transition |
Pro-Flex CSST System Compatibility
The Pro-Flex product guide identifies these products as Male Reducing Fittings within its CSST fittings section. The published configurations are 1" CSST x 3/4" MIP for PFRF-0134-06 and 3/4" CSST x 1/2" MIP for PFRF-3412-06.
Verify that the tubing, reducing fitting, and downstream threaded component are compatible with the specific Pro-Flex gas piping system being installed.
Installation Considerations
- Select the fitting that matches the nominal Pro-Flex CSST tube size.
- Confirm the required reduced MIP outlet size before ordering.
- Use compatible Pro-Flex CSST and fitting components.
- Prepare the CSST according to current Pro-Flex installation instructions.
- Confirm that the downstream female threaded component matches the MIP outlet size.
- Properly support connected piping and equipment as required.
- Protect exposed CSST where required by the installation.
- Leak-test completed gas piping connections according to applicable requirements.
- Follow applicable fuel-gas codes and local installation requirements.
- Installation should be completed by qualified gas-piping personnel.
Pro-Flex Fitting Installation
Pro-Flex describes its CSST fitting installation process as stripping the tubing jacket, positioning the retainer, slide ring, and O-ring in the specified tubing valleys, and tightening the fitting according to manufacturer instructions.
Always refer to current Pro-Flex installation documentation for complete assembly, tightening, inspection, protection, and testing requirements.
Need Help Selecting a Pro-Flex Reducing Fitting?
Our industrial PVF specialists can help review your Pro-Flex CSST size, required threaded outlet, gas piping configuration, and connected equipment before you order.
Frequently Asked Questions
What is a Pro-Flex reducing fitting used for?
It provides a transition from a larger Pro-Flex CSST tube size to a smaller male threaded connection.
What size is PFRF-0134-06?
PFRF-0134-06 connects 1" Pro-Flex CSST to a 3/4" MIP threaded connection.
What size is PFRF-3412-06?
PFRF-3412-06 connects 3/4" Pro-Flex CSST to a 1/2" MIP threaded connection.
What does MIP mean?
MIP refers to a male iron pipe threaded connection. The downstream component must have a compatible female threaded connection.
Does PFRF-0134-06 reduce a 1" CSST line to 3/4"?
Yes. The fitting is listed as a 1" CSST x 3/4" MIP reducing fitting.
Does PFRF-3412-06 reduce a 3/4" CSST line to 1/2"?
Yes. The fitting is listed as a 3/4" CSST x 1/2" MIP reducing fitting.
Why use a reducing fitting instead of a separate reducer?
A reducing fitting combines the CSST termination and size reduction into one fitting configuration, which can simplify compatible piping transitions.
Can these fittings be used in natural-gas and propane systems?
Pro-Flex CSST is offered for natural-gas and propane piping systems. Confirm that the complete piping system and all connected components are suitable for the specific application.
How do I choose between the two reducing fittings?
Select PFRF-0134-06 for 1" CSST transitioning to 3/4" MIP, or PFRF-3412-06 for 3/4" CSST transitioning to 1/2" MIP.
Who should install Pro-Flex reducing fittings?
CSST gas piping and fittings should be installed by qualified personnel according to current Pro-Flex installation instructions and applicable fuel-gas codes.
Important Ordering Notes
- PFRF-0134-06 is a 1" CSST x 3/4" MIP reducing fitting.
- PFRF-3412-06 is a 3/4" CSST x 1/2" MIP reducing fitting.
- Confirm both the CSST tube size and reduced MIP outlet size before ordering.
- Confirm that the mating component has the appropriate female threaded connection.
- Verify compatibility with the applicable Pro-Flex CSST system and connected components.
- Gas piping must be properly sized for the connected load and system conditions.
- Follow current Pro-Flex installation instructions when assembling the fitting.
- Leak-test completed connections according to applicable requirements.
- Follow applicable fuel-gas codes and local installation requirements.
- Installation should be completed by qualified gas-piping personnel.
