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ChemTite® Ethylene™ Fluoropolymer Lined Metal Pipe and Fittings

The ChemTite® Ethylene™ brand was the first to employ PTFE isostatic molding processes and the first to process pure unmodified PTFE for its lined products. Today ChemTite® Ethylene™ processes fluoropolymers in more ways than any other competing brand. Processes include dry & wet isostatic molding, paste extrusion, ram extrusion, rotolining, injection molding, intrusion molding, melt extrusion, resin transfer molding, compression molding and vacuum forming.

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Product Features & Benefits

  • PURE PTFE – NO VOC’S ADDED: Ethylene utilizes only 100% pure virgin, high molecular weight PTFE resin in its manufacturing processes. NO pigments or solvent lubricants whatsoever are added to our PTFE liners.
  • HEAVY-WALLED FLUOROPOLYMERS: Pipe sections are lined with a heavy-walled isostatically molded PTFEliners exceeding the requirements of ASTM F1545. Liner thickness ranges from .130” for 1” pipe to .425” for 12” diameter piping.
  • THE CHEMTITE® DIFFERENCE: The ChemTite® Ethylene brand focuses on the complete lined pipe assembly: PTFE liner and the steel housing. Without question, steel piping is a critical component of the piping assembly, it is the pressure retaining vessel. The PTFE liners’ only purpose is to protect the steel piping from being attacked by the fluid media.
  • “SEAMLESS” STEEL HOUSING: The ChemTite® Ethylene’s Lined Steel Pipe seamless tube is extruded and drawn from a billet while welded tubes are produced from a strip that is roll formed and welded to produce a tube. A welded tube is considerably less expensive than seamless, but it is severely compromised. ChemTite® line steel piping employs “seamless” Schedule 40 steel or stainless pipe in sizes 1” to 8”, Schedule 30 in 10”, and Schedule 20 in 12” conforming to ASTM A53 grade B or ASTM A312.
  • FORGED STEEL FLANGES: Forged steel flanges offer better impact resistance and are less brittle than ductile iron flanges. All ChemTite® rotating flanges on pipe and fittings come standard as forged steel ASTM A105 which offer higher pressure ratings, better ultimate tensile and elongation compared to ductile iron.
  • VARIOUS LINED PIPE FITTINGS: Dimensions and specs can be found on the ChemTite® Lined Piping Brochure.
    • 90° Elbow
    • Reducing Tee
    • Short Stack Tee
    • Eccentric Reducer
    • 2" Branch Tee
    • Straight Reducing Flange
    • 45° Elbow
    • Cross
    • Short Stack Cross
    • 1" Brand Tee
    • Blind Flange
    • Tapered Reducing Flange
    • Tee
    • Lateral
    • Concentric Reducer
    • 1.5" Branch Tee
    • Spectacle Blind Flange
  • LININGS AVAILABLE: PTFE, PFA, ETFE, PVDF, Nylon. Service conditions may limit the lining selection.
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Technical Details

Linear Material Properties

Check the Chemtite® PTFE Lined Pipe Fitting Brochure for Complete Details

Linear PropertiesTest MethodPTFE
Service Temperature-(-)20 to 450 °F
Min. Tensile Strength at Break (psi)ASTM D3863000
Min. Elongation at Break (%)ASTM D638250
Izod Impact Strength @ - 40°FASTM D2561.5
Izod Impact Strength @ - 75°FASTM D2563
Hardness Durometer (Shore D)ASTM D224055
Thermal Conductivity (Btu-in/h-ft²-°FASTM E15301.7
Dielectric Strength (V/mil)ASTM D149600
Surface Resistivity (Ω-sq.)ASTM D257>1018
Water Absorption (%)ASTM D570<0.01
Specific Gravity-2.14-2.19
Static Coefficient of Friction-0.05
Liner Color-White
Liner Identification Band-Black with White Lettering

*Optional Liners Available:  PFA, PVDF, ETFE, Polypropylene or Polyethylene

Carbon / Stainless Steel


    • 1" - 8" :  Schedule 40/40S
    • 10" :  Schedule 30
    • 12" :  Schedule 20


  • Fabricated Carbon Steel:  ASTM A53, ASTM 513, ASTM A516 or ASTM A234 per ASME B16.9 Cast fittings: ASTM A395 Cast Ductile Iron or ASTM A216 Gr. WCB Cast Steel 
  • Fabricated Stainless Steel: ASTM A312, ASTM A240 or ASTM A403 Gr. WPS per ASME B16.9


    • ASTM A105 Forged Carbon Steel per ASME B16.5,
    • ASTM A182 Forged Stainless Steel per ASME B16.5
    • ASTM A395 Cast Ductile Iron per ASME B16.42
    • ASTM A182 Forged Stainless Steel per ASME B16.5


  • All qualifications per ASTM F1545 are conducted on representative samples including:
    • Steam-cold water cycle product qualification testing
    • High temperature product qualification testing
    • Low temperature product qualification testing
    • Vacuum product qualification testing
    • All products are spark tested at 15 kV or hydrostatically tested at 1.5X design pressure prior to shipment
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Size Range

Nominal Pipe Dimensions & PTFE Liner Thickness

Nominal Pipe Size (in.) Nominal Outside Dia. (in.) Nominal Wall Thickness Nominal PTFE Liner Thickness (in)
    Sch. 40 Sch. 30 Sch. 20  
1 1.315 0.133 - - 0.13
1/1/02 1.9 0.145 - - 0.15
2 2.375 0.154 - - 0.16
3 3.5 0.216 - - 0.16
4 4.5 0.237 - - 0.18
6 6.625 0.28 - - 0.28
8 8.625 0.322 - - 0.31
10 10.75 - 0.307 - 0.35
12 12.75 - - 0.25 0.425


*Consult Factory for Sizes 14”-42”


Nominal Flange Dimensions (in)

Nominal Pipe Size Flange OD Min Flange Thickness Bolt Circle No Bolt Bolt Hole Dia.
Dia. Holes
1 4 1/4 2-Jan 3 1/8 4 8-May
1/1/02 5 8-May 3 7/8 4 8-May
2 6 16-Nov 4 3/4 4 4-Mar
3 7 1/2 8-Jul 6 4 4-Mar
4 9 8-Jul 7 1/2 8 4-Mar
6 11 15/16 9 1/2 8 8-Jul
8 13 1/2 1  1/16 11 3/4 8 8-Jul
10 16 1 1/8 14 1/4 12 1
12 19 1  3/16 17 12 1

Pressure Ratings

Maximum Pressure & Vacuum Ratings
Temperature CL150 Vacuum
100 °F 285 psig Full
150 °F 285 psig Full
200 °F 260 psig Full
300 °F 230 psig Full
400 °F 200 psig Full
450 °F 200 psig Full
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Pressure and Vacuum Ratings: Pressure / temperature ratings of ChemTite® PTFE lined pipe and fittings are based on the industry standard published ratings for flanges by material grade. In general, ChemTite® PTFE lined pipe and fitting are fully vacuum rated up to 450°F. *CL300 option available. Consult Factory.

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View Our Chemical Resistance Guide

This resource is intended as a guideline to be used with all available information to determine suitability of material selection. We suggest thorough research which should include known applications when determining material. The information contained herein is provided only as a guide for the use of ANDRONACO INDUSTRIES products.

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