Lined Pipe and Fittings
UNPPolyvalves, specializes in the production of robust and corrosion-resistant lined pipe and fittings. Crafted with precision, UNP’s lined pipes boast a resilient PTFE liner, with the option to upgrade to Dyneon TFM for enhanced performance. Fabricated from premium carbon or stainless steel, each pipe is meticulously constructed with diameter ranges from 1/2 inch up to 20 inches. UNP’s product line includes a variety of ANSI class 150, 300, and DIN flange dimensions, offering flexibility to suit diverse industrial needs. Additionally, explore our range of optional features such as specialized coatings and extended vent holes for tailored solutions.
Expert Assistance
Connect with a our sales engineers to get a quote or more information about our Lined Pipe Product offerings
Key Features
Heat Resistant
Corrosion Resistant
Carbon or Stainless Steel
ASTM Certified
Pipe Fittings
View the UNP Pipe and Fittings Product Brochure for more specifications, material compositions, and testing data.
Available Lining Material
- PTFE
- PVDF
- PPH
- HDPE
- TFM
Pipe Material of Construction
- Stainless Steel
- Carbon Steel
Pipe Spool
90 Degree Elbow
45 Degree Elbow
Equal Tee
Material Specs
- Pipe: Seamless Carbon Steel – As per ASTM A 106 GR.B, SCH 20 (up to 6″ and Above 6″)
- Flange: A105 -150#
- Lining: PTFE Conforming ASTM D4895
Material Specs
- 90°: Seamless Carbon Steel – ASTM A 234 GR. WPB, SCH 40 (up to 6″) / SCH 20 (Above 6″)
- Flange: ASTM A 105 – As per ASME B 16.5, 150#
- Lining: PTFE Conforming ASTM D4895
Material Specs
- 45° Bend: Seamless Carbon Steel – ASTM A 234 GR. WPB, SCH 40 (up to 6″) / SCH 20 (Above 6″)
- Flange: ASTM A 105 – As per ASME B 16.5, 150#
- Lining: PTFE Conforming ASTM D4895
Material Specs
- Eq. Tee: Seamless Carbon Steel – As per ASTM A 106 GR. B, SCH 40 (up to 6″) / SCH 20 (Above 6″)
- Flange: ASTM A 105 – As per ASME B 16.5, 150#
- Lining: PTFE Conforming ASTM D3307
Equal Cross
Reducer Fitting
Unequal Tee
Reducing Flanges
Material Specs
- Pipe: Seamless Carbon Steel – As per ASTM A 106 GR.B, SCH 20 (up to 6″ and Above 6″)
- Flange: A105 -150#
- Lining: PTFE Conforming ASTM D4895
Material Specs
- Reducer: Seamless Carbon Steel – ASTM A 216 GR.WCB
- Flange: As per ASME B 16.5, 150#
- Lining: PTFE Conforming ASTM D3307
Material Specs
- Un. Eq. Tee: Seamless Carbon Steel – ASTM A 106 GR.B, SCH 40 (up to 6″) / SCH 20 (Above 6″)
- Flange: ASTM A 105 – As per ASME B 16.5, 150#
- Lining: PTFE Conforming ASTM D3307
Material Specs
- Reducing Flange: IS 2062
- Flange: As per ASME B 16.5, 150#
- Lining: PFA Conforming ASTM D3307
Pipe Specifications
Use the chart below to find UNP pipe specifications and dimensions.
Need to speak with a representative?
Size | L – ID (Ød) | ØR / F (ØB) | F. OD (ØD) | F. THK (G) | Stub End (T) | P.C.D. (K) | H – DIA (Øe) | NH (n) | Lining THK (S) | C. S. Pipe (SCH) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
INCH | MM | INCH | MM | INCH | MM | INCH | MM | INCH | MM | INCH | MM | INCH | MM | INCH | MM | |||
0.079 | ±2 | 0.079 | ±2 | 0.06 | ±1.6 | |||||||||||||
1/2″ | 0.39 | 10 | 1.37 | 34.9 | 3.50 | 88.9 | 0.44 | 11.1 | 0.35 | 8.9 | 2.37 | 60.3 | 0.63 | 15.9 | 04 | 0.126 | 3.2 | 40 |
3/4″ | 0.59 | 15 | 1.68 | 42.7 | 3.87 | 98.4 | 0.50 | 12.7 | 0.40 | 10.2 | 2.75 | 69.8 | 0.63 | 15.9 | 04 | 0.126 | 3.2 | 40 |
1″ | 0.79 | 20 | 2.01 | 51 | 4.25 | 108 | 0.56 | 14.2 | 0.45 | 11.4 | 3.13 | 79.4 | 0.63 | 15.9 | 04 | 0.126 | 3.2 | 40 |
1.5″ | 1.34 | 34 | 2.87 | 73 | 5.00 | 127 | 0.69 | 17.5 | 0.55 | 14 | 3.87 | 98.4 | 0.63 | 15.9 | 04 | 0.126 | 3.2 | 40 |
2″ | 1.73 | 44 | 3.62 | 92 | 6.00 | 152.4 | 0.75 | 19 | 0.60 | 15.2 | 4.75 | 120.6 | 0.75 | 19 | 04 | 0.138 | 3.5 | 40 |
3″ | 2.76 | 70 | 5.00 | 127 | 7.50 | 190.5 | 0.94 | 23.8 | 0.75 | 19.0 | 6.00 | 152.4 | 0.75 | 19 | 04 | 0.157 | 4 | 40 |
4″ | 3.70 | 94 | 6.18 | 157 | 9.00 | 228.6 | 0.94 | 23.8 | 0.75 | 19.0 | 7.50 | 190.5 | 0.75 | 19 | 08 | 0.177 | 4.5 | 40 |
6″ | 5.67 | 144 | 8.50 | 216 | 11.00 | 279.4 | 1.00 | 25.4 | 0.80 | 20.3 | 9.50 | 241.3 | 0.87 | 22.2 | 08 | 0.217 | 5.5 | 40 |
8″ | 7.64 | 194 | 10.63 | 270 | 13.50 | 342.9 | 1.13 | 28.6 | 0.90 | 22.9 | 11.75 | 298.4 | 0.87 | 22.2 | 08 | 0.217 | 5.5 | 20 |
10″ | 9.72 | 247 | 12.76 | 324 | 16.00 | 406.4 | 1.19 | 30.2 | 0.95 | 24.2 | 14.25 | 362 | 1.00 | 25.4 | 12 | 0.256 | 6.5 | 20 |
12″ | 11.73
| 298 | 15.00 | 381 | 19.00 | 482.6 | 1.25 | 31.8 | 1.00 | 25.4 | 17.00 | 431.8 | 1.00 | 25.4 | 12 | 0.256 | 6.5 | 20 |
14″ | 12.83 | 326 | 13.26 | 413 | 21.00 | 533.4 | 1.37 | 34.9 | 1.10 | 27.9 | 18.75 | 476.3 | 1.13 | 28.6 | 12 | 0.256 | 6.5 | 20 |
16″ | 14.84 | 377 | 18.50 | 470 | 23.50 | 596.9 | 1.44 | 36.5 | 1.15 | 29.2 | 21.25 | 539.8 | 1.13 | 28.6 | 16 | 0.256 | 6.5 | 20 |
18″ | 16.85 | 428 | 21.00 | 533.4 | 25.00 | 635 | 1.56 | 39.7 | 1.25 | 31.8 | 22.75 | 577.9 | 1.25 | 31.8 | 16 | 0.256 | 6.5 | 20 |
20″ | 18.70 | 475 | 23.00 | 584.2 | 27.50 | 698.5 | 1.69 | 42.9 | 1.35 | 34.3 | 25.00 | 635 | 1.26 | 32 | 20 | 0.256 | 6.5 | 20 |
TFM Dyneon Liner Features
*Upgradeable Option
- Lower Deformation Under Load – Compared to conventional PTFE, Dyneon TFM maintains its shape and integrity when subjected to substantially higher pressures.
- Denser Polymer Structure – Dyneon TFM has fewer voids resulting in lower permeability compared to PTFE. This makes it more resistant to the passage of gasses or liquids through its surface.
- Improved Stress Recovery – Dyneon TFM recovers from stress more efficiently, especially at elevated temperatures, therefore it maintains its sealing properties for longer resulting in longer lasting pipe and less maintenance.
Request a Quote
CPE experts are ready to help advise and provide you with the information you need. Use the form below to request a quote or consultation.
