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PTFE / Teflon Lined Pipes & Fittings

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PTFE / Teflon Lined Pipes & Fittings

PTFE (Teflon) Lined Pipes & Fittings are high-performance corrosion-resistant piping solutions designed for handling highly aggressive, corrosive, and high-purity media. These products consist of a metallic outer shell (Mild Steel / Stainless Steel) with an internally bonded or loose-fit PTFE lining, offering the mechanical strength of metal combined with the exceptional chemical resistance of PTFE.

PTFE lined piping systems are widely used in chemical processing, pharmaceuticals, petrochemicals, fertilizers, acids & alkalis transfer, and specialty chemical plants, where conventional metal pipes fail due to corrosion or contamination.

Key Features & Benefits

  • Outstanding Chemical Resistance
    PTFE is inert to almost all chemicals, including strong acids, alkalis, solvents, and corrosive gases.

  • High Purity & Non-Contaminating
    Ideal for applications where product purity is critical, such as pharmaceutical and specialty chemical processes.

  • Wide Temperature Range
    Suitable for continuous service from –50°C to +260°C, depending on design.

  • Excellent Anti-Stick & Low Friction Properties
    Smooth internal surface prevents material build-up, scaling, and clogging, ensuring efficient flow.

  • Corrosion & Erosion Protection
    Protects metal substrate from chemical attack, significantly extending service life.

  • Vacuum & Pressure Rated Designs
    Available with anti-collapse liners and engineered support rings for vacuum applications.

  • Leak-Proof & Reliable Construction
    Precision flaring and lining techniques ensure tight sealing at flanges.

  • Custom Fabrication Available
    Manufactured as per ANSI / DIN / JIS standards or customer drawings.

Types of PTFE / Teflon Lined Pipes & Fittings

Category Products
Fluoropolymers Lining PTFE / Teflon Lined Pipes & Fittings
PTFE Solid Rod & Bush
PTFE Gaskets
PFA Lined Valves
PTFE Lined Dip Pipes
PTFE Lined High Pressure Bellow
PTFE Lined Hose Pipes
PFA Lined Sight Glass
PTFE Spacers

LINED SPOOLS

Pipework (NB) ØOD (mm) ØID (mm) ØRF (mm) ØP.C.D (mm) NH ØH (mm) T (mm) C (mm) Max. Length (mm) Pipe Sch. Lining Thk. (mm)
1/2″ 15 88.9 8.5 35 4 60.3 16.0 11.1 6000 40 3.5
2/3″ 20 98.4 14.0 43 4 69.8 16.0 12.7 6000 40 3.5
1″ 25 108.0 19.0 51 4 79.4 16.0 14.3 6000 40 3.5
1.1/2″ 40 127.0 34.0 73 4 98.4 16.0 17.5 6000 40 3.5
2″ 50 152.4 45.0 92 4 120.6 19.0 19.0 6000 40 3.5
2.1/2″ 65 177.8 55.0 105 4 139.7 19.0 22.2 6000 40 3.5
3″ 80 190.5 69.0 127 4 152.4 19.0 23.8 6000 40 4.0
4″ 100 228.6 92.0 157 8 190.5 19.0 23.8 6000 40 4.0
6″ 150 279.4 144.0 216 8 241.3 22.2 25.4 6000 40 4.5
8″ 200 342.9 192.0 270 8 298.4 22.2 28.6 6000 40 5.0
10″ 250 406.4 241.0 324 12 361.9 25.4 30.2 6000 20 5.5
12″ 300 482.6 296.0 381 12 431.8 25.4 31.8 6000 20 5.5
14″ 350 533.4 325.0 413 12 476.2 28.6 34.9 1000 20 6.0

 

Lined elbow 90°

Pipework (NB) NB (mm) ØOD (mm) ØID (mm) ØRF (mm) ØP.C.D (mm) NH ØH (mm) T (mm) A (mm) Lining Thk. (mm)
1/2″ 15 88.9 8.5 35 60.3 4 16 11.1 65 3.5
2/3″ 20 98.4 14 43 69.8 4 16 12.7 75 3.5
1″ 25 108 19 51 79.4 4 16 14.3 89 3.5
1.1/2″ 40 127 34 73 98.4 4 16 17.5 102 3.5
2″ 50 152.4 45 92 120.6 4 19 19 114 3.5
2.1/2″ 65 177.8 55 105 139.7 4 19 22.2 127 3.5
3″ 80 190.5 69 127 152.4 4 19 23.8 140 4
4″ 100 228.6 92 157 190 8 19 23.8 165 4
6″ 150 279.4 144 216 241.3 8 22.2 25.4 203 4.5
8″ 200 342.9 192 270 298.4 8 22.2 28.6 229 5
10″ 250 406.4 241 324 361.9 12 25.4 30.2 279 5.5
12″ 300 482.6 296 381 431.8 12 25.4 31.8 305 6

 

Lined elbow 45°

Pipe NB (Inches) NB (mm) ØOD (mm) ØID (mm) ØRF (mm) ØP.C.D. (mm) NH ØH (mm) T (mm) A (mm) Lining Thk. (mm)
1″ 25 108 19 51 79.4 4 16 14.3 44 3.5
1.1/2″ 40 127 34 73 98.4 4 16 17.5 57 3.5
2″ 50 152.4 45 92 120.6 4 19 19 63 3.5
2.1/2″ 65 177.8 55 105 139.7 4 19 22.2 76 3.5
3″ 80 190.5 69 127 152.4 4 19 23.8 76 4
4″ 100 228.6 92 157 190.5 8 19 23.8 102 4
6″ 150 279.4 144 216 241.3 8 22.2 25.4 127 4.5
8″ 200 342.9 192 270 298.4 8 22.2 28.6 140 5
10″ 250 406.4 241 324 361.9 12 25.4 30.2 165 5.5
12″ 300 482.6 296 381 431.8 12 25.4 31.8 190 6
14″ 350 533.4 325 413 476.2 12 28.6 34.9 190 6.5

 

PTFE BELLOW

NB (Inch) NB (mm) ØOD ØID ØRF ØP.C.D N x ØH T ØP.C.D1 n x ØH ØOD1 t Length
1″ 25 108 19 51 79.4 4 x 14 10 129 3 x 10 155 2 50
1.1/2″ 40 127 34 73 98.4 4 x 14 10 148 3 x 10 174 2 55
2″ 50 152.4 45 92 120.6 4 x 18 12 180 3 x 12 209 3 70
3″ 80 190.5 69 127 152.4 4 x 18 12 218 3 x 12 247 4 100
4″ 100 228.6 92 157 190.5 8 x 18 14 256 3 x 12 285 4 100
6″ 150 279.4 145 216 241.3 8 x 20 16 313 3 x 14 348 5 100
8″ 200 342.9 192 270 298.4 8 x 20 16 376 3 x 14 421 5 150
10″ 250 406.4 246 324 361.9 12 x 23 20 445 3 x 14 490 6 150
12″ 300 482.6 280 381 431.8 12 x 23 20 521 3 x 14 566 6 150
14″ 350 533.4 320 413 476.2 12 x 25 20 574 3 x 14 621 6 150
16″ 400 596.9 375 470 539.7 16 x 28 20 625 3 x 14 697 6 150
18″ 450 635 440 533 577.8 16 x 30 25 680 3 x 19 732 6 150
20″ 500 698.5 480 584 635 20 x 30 25 743 3 x 25 807 6 150
24″ 600 812.8 585 698 749.3 20 x 33 25 858 3 x 25 922 6 150

Lined equal Tee

NB (Inch) NB (mm) ØOD ØID ØRF ØP.C.D NH ØH T A B Lining Thk.
1/2″ 15 88.9 8.5 35 60.3 4 16 11.1 65 130 3.5
2/3″ 20 98.4 14 43 69.8 4 16 12.7 75 150 3.5
1″ 25 108 19 51 79.4 4 16 14.3 89 178 3.5
1.1/2″ 40 127 34 73 98.4 4 16 17.5 102 204 3.5
2″ 50 152.4 45 92 120.6 4 19 19 114 228 3.5
2.1/2″ 65 177.8 55 105 139.7 4 19 22 127 254 3.5
3″ 80 190.5 69 127 152.4 4 19 23.8 140 280 4
4″ 100 228.6 92 157 190.5 8 19 23.8 165 330 4
6″ 150 279.4 144 216 241.3 8 22.2 25.4 203 406 4.5
8″ 200 342.9 192 270 298.4 8 22.2 28.6 229 458 5
10″ 250 406.4 241 324 361.9 12 25.4 30.2 279 558 5.5
12″ 300 482.6 296 381 431.8 12 25.4 31.8 305 610 6

Lined Reducing Tee

Size (NB) ØOD ØID ØRF ØP.C.D NH ØH T ØOD1 ØID1 ØRF1 ØP.C.D1 NH1 ØH1 T1 A B
40 x 25 127 33 73 98.4 4 16 17.5 108 19 51 79.4 4 16 14.3 102 204
50 x 25 152.4 45 92 120.6 4 19 19 108 19 51 79.4 4 16 14.3 114 228
50 x 40 152.4 45 92 120.6 4 19 19 127 33 73 98.4 4 16 17.5 114 228
80 x 25 190.5 69 127 152.4 4 19 23.8 108 19 51 79.4 4 16 14.3 140 280
80 x 40 190.5 69 127 152.4 4 19 23.8 127 33 73 98.4 4 16 17.5 140 280
80 x 50 190.5 69 127 152.4 4 19 23.8 152.4 45 92 120.6 4 19 19 140 280
100 x 25 228.6 92 157 190.5 8 19 23.8 108 19 51 79.4 4 16 14.3 165 330
100 x 40 228.6 92 157 190.5 8 19 23.8 127 33 73 98.4 4 16 17.5 165 330
100 x 50 228.6 92 157 190.5 8 19 23.8 152.4 45 92 120.6 4 19 19 165 330
100 x 80 228.6 92 157 190.5 8 19 23.8 190.5 69 127 152.4 4 19 23.8 165 330
150 x 25 279.4 144 216 241.3 8 22.2 25.4 108 19 51 79.4 4 16 14.3 203 406
150 x 40 279.4 144 216 241.3 8 22.2 25.4 127 33 73 98.4 4 16 17.5 203 406
150 x 50 279.4 144 216 241.3 8 22.2 25.4 152.4 45 92 120.6 4 19 19 203 406
150 x 80 279.4 144 216 241.3 8 22.2 25.4 190.5 69 127 152.4 4 19 23.8 203 406
150 x 100 279.4 144 216 241.3 8 22.2 25.4 228.6 92 157 190.5 8 19 23.8 203 406

Lined concentric reducer

Size (NB) ØOD ØID ØRF ØP.C.D NH ØH T ØOD1 ØID1 ØRF1 ØP.C.D1 NH1 ØH1 T1 A
40 x 25 127 33 73 98.4 4 16 17.5 108 19 51 79.4 4 16 14.3 114
50 x 25 152.4 45 92 120.6 4 19 19 108 19 51 79.4 4 16 14.3 127
50 x 40 152.4 45 92 120.6 4 19 19 127 33 73 98.4 4 16 17.5 127
80 x 25 190.5 69 127 152.4 4 19 23.8 108 19 51 79.4 4 16 14.3 152
80 x 40 190.5 69 127 152.4 4 19 23.8 127 33 73 98.4 4 16 17.5 152
80 x 50 190.5 69 127 152.4 4 19 23.8 152.4 45 92 120.6 4 19 19 152
100 x 25 228.6 92 157 190.5 8 19 23.8 108 19 51 79.4 4 16 14.3 178
100 x 40 228.6 92 157 190.5 8 19 23.8 127 33 73 98.4 4 16 17.5 178
100 x 50 228.6 92 157 190.5 8 19 23.8 152.4 45 92 120.6 4 19 19 178
100 x 80 228.6 92 157 190.5 8 19 23.8 190.5 69 127 152.4 4 19 23.8 178
150 x 25 279.4 144 216 241.3 8 22.2 25.4 108 19 51 79.4 4 16 14.3 229
150 x 40 279.4 144 216 241.3 8 22.2 25.4 127 33 73 98.4 4 16 17.5 229
150 x 50 279.4 144 216 241.3 8 22.2 25.4 152.4 45 92 120.6 4 19 19 229
150 x 80 279.4 144 216 241.3 8 22.2 25.4 190.5 69 127 152.4 4 19 23.8 229
150 x 100 279.4 144 216 241.3 8 22.2 25.4 228.6 92 157 190.5 8 19 23.8 229

LINED ECCENTRIC REDUCER

Size (NB) ØOD ØID ØRF ØP.C.D NH ØH T ØOD1 ØID1 ØRF1 ØP.C.D1 NH1 ØH1 T1 A
40 x 25 127 33 73 98.4 4 16 17.5 108 19 51 79.4 4 16 14.3 114
50 x 25 152.4 45 92 120.6 4 19 19 108 19 51 79.4 4 16 14.3 127
50 x 40 152.4 45 92 120.6 4 19 19 127 33 73 98.4 4 16 17.5 127
80 x 25 190.5 69 127 152.4 4 19 23.8 108 19 51 79.4 4 16 14.3 152
80 x 40 190.5 69 127 152.4 4 19 23.8 127 33 73 98.4 4 16 17.5 152
80 x 50 190.5 69 127 152.4 4 19 23.8 152.4 45 92 120.6 4 19 19 152
100 x 25 228.6 92 157 190.5 8 19 23.8 108 19 51 79.4 4 16 14.3 178
100 x 40 228.6 92 157 190.5 8 19 23.8 127 33 73 98.4 4 16 17.5 178
100 x 50 228.6 92 157 190.5 8 19 23.8 152.4 45 92 120.6 4 19 19 178
100 x 80 228.6 92 157 190.5 8 19 23.8 190.5 69 127 152.4 4 19 23.8 178
150 x 25 279.4 144 216 241.3 8 22.2 25.4 108 19 51 79.4 4 16 14.3 229
150 x 40 279.4 144 216 241.3 8 22.2 25.4 127 33 73 98.4 4 16 17.5 229
150 x 50 279.4 144 216 241.3 8 22.2 25.4 152.4 45 92 120.6 4 19 19 229
150 x 80 279.4 144 216 241.3 8 22.2 25.4 190.5 69 127 152.4 4 19 23.8 229
150 x 100 279.4 144 216 241.3 8 22.2 25.4 228.6 92 157 190.5 8 19 23.8 229

Lined REDUCING FLANGE

Size (NB) ØOD ØID P.C.D R/F NH ØH T ØOD1 ØID1 ØRF1 ØP.C.D1 NH1 Tapp.1 A
40 x 25 127 40 98.4 73 4 16 17.5 108 25 51 79.4 4 1/2″ 35
50 x 25 152.4 50 120.6 92 4 19 19 108 25 51 79.4 4 1/2″ 35
50 x 40 152.4 50 120.6 92 4 19 19 127 40 73 98.4 4 1/2″ 35
80 x 25 190.5 80 152.4 127 4 19 23.8 108 25 51 79.4 4 1/2″ 45
80 x 40 190.5 80 152.4 127 4 19 23.8 127 40 73 98.4 4 1/2″ 45
80 x 50 190.5 80 152.4 127 4 19 23.8 152.4 50 92 120.6 4 5/8″ 45
100 x 25 228.6 100 190.5 157 8 19 23.8 108 25 51 79.4 4 1/2″ 45
100 x 40 228.6 100 190.5 157 8 19 23.8 127 40 73 98.4 4 1/2″ 45
100 x 50 228.6 100 190.5 157 8 19 23.8 152.4 50 92 120.6 4 5/8″ 45
100 x 80 228.6 100 190.5 157 8 19 23.8 190.5 80 127 152.4 4 5/8″ 45
150 x 25 279.4 150 241.3 216 8 22.2 25.4 108 25 51 79.4 4 1/2″ 54
150 x 40 279.4 150 241.3 216 8 22.2 25.4 127 40 73 98.4 4 1/2″ 54
150 x 50 279.4 150 241.3 216 8 22.2 25.4 152.4 50 92 120.6 4 5/8″ 54
150 x 80 279.4 150 241.3 216 8 22.2 25.4 190.5 80 127 152.4 4 5/8″ 54
150 x 100 279.4 150 241.3 216 8 22.2 25.4 228.6 100 157 190.5 8 5/8″ 54

Lined BLIND FLANGE

Pipework (NB) NB (mm) ØOD ØRF ØP.C.D NH ØH T A Lining Thk.
1/2″ 15 88.9 35 60.3 4 16 11.1 14.5 3.5
3/4″ 20 98.4 43 69.8 4 16 12.7 16 3.5
1″ 25 108 51 79.4 4 16 14.3 18 3.5
1.1/2″ 40 127 73 98.4 4 16 17.5 21 3.5
2″ 50 152.4 92 120.6 4 19 19 22.5 3.5
2.1/2″ 65 177.8 105 139.7 4 19 22.2 26 3.5
3″ 80 190.5 127 152.4 4 19 23.8 28 4
4″ 100 228.6 157 190.5 8 19 23.8 28 4
6″ 150 279.4 216 241.3 8 22.2 25.4 30 4.5
8″ 200 342.9 270 298.4 8 22.2 28.6 33.5 5
10″ 250 406.4 324 361.9 12 25.4 30.2 36 5.5
12″ 300 482.6 381 431.8 12 25.4 31.8 38 6

LINED FULL VIEW SIGHT GLASS

Size (NB) L ±3 OD ±1 T ±1 RF P.C.D ±1 Hole Dia. No. of Holes
25 200 108 12 51 79 16 4
40 200 127 14 73 98 16 4
50 200 152 16 92 121 19 4
80 200 191 17 127 152 19 4
100 200 229 17 157 191 19 8
150 200 279 18 216 241 22 8

Lined double window sight glass

Size (NB) L ±3 OD T P.C.D Holes Dia. No. H L1 D A
25 178 108 17 79 16 4 130 85 40
40 204 127 17 98 16 04* 150 110 50
50 228 152 19 121 19 4 170 135 75
80 254 178 23 152 19 4 220 175 100
100 330 228 23 191 29 8 260 205 150
150 406 280 25 241 22 8 340 250 200
200 458 343 28 298 22 8 400 315 245

Lined ball valve

Size (NB) L ±3 OD ±1 T ±1 P.C.D ±1 No. of Holes Hole Dia. R/F Dia. H ±5 H1 ±5 Torque Min (Nm) Torque Max (Nm)
15 mm 108 89 12 60 4 16 35 105 215 15 18
20 mm 127 98 13 70 4 16 43 105 225 15 20
25 mm 127 108 13 79 4 16 51 105 225 20 22
32 mm 165 115 16 89 4 16 64 125 320 20 23
40 mm 165 127 16 98 4 16 73 125 320 22 25
50 mm 178 152 18 121 4 19 92.1 134 330 30 33
65 mm 190 180 23 140 4 19 105 156 330 22 26
80 mm 203 191 23 152 4 19 127 156 400 22 26
100 mm 229 229 24 191 8 19 157 230 458 25 28
150 mm 267 280 24 241 8 22 216 298 534 30 35
200 mm 360 342.9 28 298.4 8 22 269.9 320 600 40 46

LINED HOSE PIPE

Pipework (NB) NB (mm) ØOD ØID ØRF ØP.C.D NH ØH T Length Lining Thk.
1″ 25 108 22 51 79.4 4 16 14.3 200 – 6000 3.5
1.1/2″ 40 127 37 73 98.4 4 16 17.5 200 – 6000 3.5
2″ 50 152.4 50 92 120.6 4 19 19 200 – 6000 3.5
2.1/2″ 65 177.8 57.5 105 139.7 4 19 22.2 200 – 6000 3.5
3″ 80 190.5 73 127 152.4 4 19 23.8 200 – 6000 4
4″ 100 228.6 97 157 190.5 8 19 23.8 200 – 6000 4

Applications

  • Chemical & Petrochemical Plants
    Transfer of acids, alkalis, solvents, chlorinated chemicals.

  • Pharmaceutical & API Manufacturing
    High-purity fluid transfer without contamination.

  • Fertilizer & Agrochemical Industry
    Handling aggressive intermediates and corrosive liquids.

  • Oil & Gas & Refineries
    Corrosive process lines and specialty chemical dosing.

  • Food & Specialty Processing
    Non-stick, non-reactive fluid handling applications.

  • Water & Effluent Treatment Plants
    Acid dosing, chemical injection, and corrosive waste transfer.

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