Python

Python Line Sets is a manufacturer of PE-RT/AL/PE-RT composite refrigerant line sets and compression fittings for split system and mini-split air conditioning installations. Python Line Sets are produced by Gastite, a division of Titeflex Corporation, at a manufacturing facility in Portland, Tennessee, where the product line is made in the USA. Python line sets are engineered as a direct alternative to traditional copper refrigerant line sets, offering a lightweight, UV-resistant, kink-resistant composite construction rated to 700 PSI design pressure and 203 degrees F. Python Line Sets carry certifications including ASTM F3506-21, ICC PMG-1675, UL 207, CSA C22.2, and ASME B31.5, and are approved for use with R-410A, R-32, and R-454B (A2L) refrigerants. For HVAC technicians installing split systems and mini-split equipment, Python Line Sets provide a fieldable alternative to copper that does not require brazing or special press tools.

Product Lines

PERT-AL-PERT Insulated Refrigerant Line Sets

Python PERT-AL-PERT Insulated Line Sets use a three-layer construction: inner chemically resistant PE-RT tube, structural aluminum layer, and carbon-black UV-resistant outer PE-RT jacket, with closed-cell foam insulation. Sizes run from 1/4 inch through 7/8 inch nominal, rated to 700 PSI design pressure (650 PSI for 7/8-inch). Available in 50-foot, 100-foot, and 300-foot rolls. UV resistance is tested to ASTM G154 Cycle 1.

PERT-AL-PERT Uninsulated Refrigerant Line Sets

Python Uninsulated Line Sets use the same PERT-AL-PERT composite construction without the foam insulation jacket. Sizes cover 3/8 inch, 1/2 inch, and 5/8 inch nominal. Appropriate for indoor routing or applications where field-applied insulation is specified. The composite tube ID and flow characteristics match equivalent copper pipe sizes.

Mini-Split Line Set Kits

Python Mini-Split Line Set Kits package the insulated PERT-AL-PERT line set in 35-foot pre-cut lengths for single-zone mini-split installations. Approved for R-410A, R-32, and R-454B refrigerants, covering current and next-generation mini-split equipment refrigerant requirements.

Python Compression Fittings

Python Compression Fittings are solid brass field-installed connectors for PERT-AL-PERT line sets, requiring no special press tools or brazing. The compression fitting system allows refrigerant connections with standard hand tools, eliminating torch requirements. Crimp-style variants are also available for press-tool connection where preferred.

Why Contractors Specify Python Line Sets

HVAC technicians and mechanical contractors specify Python Line Sets because the PERT-AL-PERT composite construction eliminates the weight, corrosion risk, and brazing requirements associated with copper refrigerant line sets. Python line sets weigh significantly less than copper equivalents, reducing labor time on rooftop and attic installations. The compression fitting system allows line set connections with standard hand tools, removing the torch from the process. Python Line Sets carry a lifetime warranty and are certified to ASTM F3506-21, ICC PMG-1675, UL 207, CSA C22.2, and ASME B31.5. Python is A2L refrigerant compatible for R-454B installations on next-generation split system equipment. Manufactured in Portland, Tennessee.

How to Choose a Python Line Set

The most important decision variable when selecting a Python Line Set is the refrigerant line size required by the equipment OEM. Python line sets are available from 1/4 inch through 7/8 inch nominal, matching standard copper size designations. Size selection follows the same tables used for copper line sets.

For insulation requirements, the Insulated Line Set is the standard choice for outdoor routing and any application where condensation is a concern. The Uninsulated Line Set is appropriate for indoor routing where field-applied insulation is specified.

For run length, the Mini-Split Kit in 35-foot length covers most residential single-zone applications. The 50-foot, 100-foot, and 300-foot rolls cover commercial and multi-zone jobs. For refrigerant compatibility, verify approval against the equipment OEM's line set specification. Consult the Python Line Sets specification sheet for model-specific requirements.

FAQs

Where are Python Line Sets manufactured?
Python Line Sets are manufactured in Portland, Tennessee, by Gastite, a division of Titeflex Corporation. The product is made in the USA.

What warranty does Python Line Sets offer?
Python Line Sets carry a lifetime limited warranty against defects in workmanship and material for the useful life of the product. The warranty covers replacement or repair at Titeflex's option and does not cover normal wear, improper installation, or alteration.

What is the difference between Python Insulated and Uninsulated Line Sets?
The difference is the presence of a closed-cell foam insulation jacket on the outer PE-RT layer. The Insulated Line Set is for outdoor routing and applications where suction line condensation is a concern. The Uninsulated Line Set uses the same PERT-AL-PERT composite tube without insulation, suited for indoor routing where field-applied insulation is specified.

What refrigerants are Python Line Sets approved for?
Python Line Sets are approved for R-410A, R-32, and R-454B (A2L), covering current and next-generation split system and mini-split equipment. The composite tube is rated to 700 PSI design pressure, covering the operating pressure range of these refrigerant systems.

Are Python Line Sets compatible with all split system and mini-split equipment brands?
Python PERT-AL-PERT Line Sets are sized to match standard copper refrigerant line set nominal dimensions, so copper sizing tables apply directly. Compatibility with a specific brand's line set port fittings depends on the OEM's fitting type; Python compression fittings allow field connection without brazing. Verify the size and refrigerant approval match the OEM's published line set specification.

How long a run can Python Line Sets cover for a residential mini-split installation?
Python Mini-Split Line Set Kits cover 35-foot runs for standard residential mini-split connections. The 50-foot, 100-foot, and 300-foot insulated rolls cover longer runs. Maximum allowable line set length depends on the equipment OEM's published specifications for the specific model being installed.