EthyleneEthylene

Lined Pipe Fittings

Lined Pipe / Fittings

Unsurpassed High Temperature Corrosion Resistance

Ethylene has the capability of lining virtually any fitting, column section, or large diameter pipe section with a broad range of heavy-walled fluoropolymers. Our rugged and seamless liners are designed to meet the rigorous ASTM F423 steam-cold water cycling standard.

Lined Pipe / Fittings Overview

Lined Pipe Fittings

Founded in 1950, Ethylene’s roots trace back to DuPont® and the pioneering development of PTFE lined products.

In 1958, Ethylene was the first company to employ PTFE Isostatic Molding processes and also the first company to process pure unmodified PTFE for its lined piping products. Competitors followed some three decades later.

Today, Ethylene processes Fluoropolymers in more ways than any other company. 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.

ChemTite PTFE Lined Pipe

Pipe sections are lined with a heavy-walled isostatically molded PTFE liner with the following minimum PTFE wall thickness.

Lined Pipe Fittings
Minimum PTFE Wall Thickness
All sizes in inches.
Nominal
Size
(in.)
Liner
Thickness
(in.)
Maximum
Length
(in.)
1 .130 240
1 1/2 .150 240
2 .160 240
3 .160 240
4 .180 240
6 .280 240
8 .310 240
10 .350 240
12 .450 240
14 .250 120
16 .250 120
18 .275 120
20 .350 120
24 .350 120
30 .365 108
36 .375 108
42 .975 60
Typical Properties of DuPont Fluoroplastics
  PTFE PFA ETFE
Melting Point, °F 621 580 520
Upper Service Temp., °F 500 500 300-350
Tensile Strength, at RT psi 2,500-4,000 4,500 6,500
Ultimate Elongation, % at RT 225-450 300 100-300
% at 482°F 350 500  
Flexural Modulus, 103 psi at RT 40-90 100 200
103 psi at 482°F 4 10  
Coefficient of Friction .02-.26 .23-.29 .40
Chemical Resistance Outstanding Outstanding Excellent
Cryogenic Service Outstanding Outstanding Outstanding
 
  F   F   F   F  
  |   |   |   |  
~ C - C - C - C ~
  |   |   |   |  
  F   F   F   F  
  F   F   F   F   F   F  
  |   |   |   |   |   |  
~ C - C - C - C - C - C ~
  |   |   |   |   |   |  
  F   F   F   O
|
R1
  F   F  
  F   F   H   H   F   F  
  |   |   |   |   |   |  
~ C - C - C - C - C - C ~
  |   |   |   |   |   |  
  F   F   F   H
  F   F  

Lined Piped / Fittings Styles

Download our ChemTite Lined Piping Brochure for Fitting Dimensions and Specs

  • 16" Fittings

    90° Elbow

  • 16" Fittings

    45° Elbow

  • 16" Fittings

    Tee

  • 16" Fittings

    Reducing Tee

  • 16" Fittings

    Cross

  • 16" Fittings

    Lateral

  • 16" Fittings

    Short Stack Tee

  • 16" Fittings

    Short Stack Cross

  • 16" Fittings

    Concentric Reducer

  • 16" Fittings

    Eccentric Reducer

  • 16" Fittings

    1" Branch Tee

  • 16" Fittings

    1.5" Branch Tee

  • 16" Fittings

    2" Branch Tee

  • 16" Fittings

    Blind Flange

  • 16" Fittings

    Spectacle Blind Flange

  • 16" Fittings

    Straight Reducing Flange

  • 16" Fittings

    Tapered Reducing Flange

Download LPF Brochure

Linings Available

  • PTFE
  • PFA
  • ETFE
  • PVDF
  • Nylon

Service conditions may limit the lining selection.

FLO-CHECK™ PFA lined ball check valve.

FLO-VU Sight-Float Check Valve

Eliminate Back-Flow

Flo-Check™ PFA lined ball check valves prevent the back-flow of liquids in pipelines, prevent siphoning of pumps and eliminates pump impeller rotation in opposite direction due to back-flowing media. Flo-Check’s PFA lining provides the ultimate in chemical and permeation resistance from (-)20°F to (+)350°F and all sizes are full vacuum rated.

Flo-Check™ is resistant to:

  • All acids
  • All solvents
  • All organic and inorganic chlorides & sulfates
  • All bleach solutions
  • All phenols
  • All caustics
  • All peroxides

Dimensions

Flo-Check Dimensions
Dimensions
Size (A)
Length
(B)
Diameter
(C)
Flare Diameter
1" 6" 5-1/2" 2"
1-1/2" 7" 6-1/2" 2-1/2"
2" 8" 7-5/16" 3-1/8"
3" 9-1/2" 9-7/8" 5-1/8"
4" 11-1/2" 11-1/4" 6-5/16"
6" 14" 15-1/2" 8"

Parts & Material

Item Qty Description Material
Not recommended for horizontal installations
1 2 Check Valve Body ASTM A395 DCI
2 1 Liner PFA
3 4-8 Threaded Stud, Grade B7 Zinc Plated Steel
4 1 Check Valve Ball Virgin PTFE
5 8-16 Heavy Hex Nut, Grade 2H Zinc Plated Steel
6 1 Ethylene Nameplate 304 S.S.
Flo-Check Parts and Materials

Pressure-Temperature

Flo-Check Pressure-Temperature

Download Flo-Check Brochure

How to Order

Size Part Number
1" FC - DI - 100
1-1/2" FC - DI - 150
2" FC - DI - 200
3" FC - DI - 300
4" FC - DI - 400
6" FC - DI - 600