Overview of PTFE Lining Pipes

ZHW Products is a leading supplier of engineered polymer products for critical applications in the chemical processing, aerospace, semiconductor and biopharmaceutical industries. We have produced more rotationally lined pipe, fittings and vessels for chemical processing, mining and oil and gas companies than any other manufacturer in the world.

ZHW PTFE lining was founded in 1999. Since 2000, we have specialized in helping customers lower capital cost and operating expenses through innovative manufacturing processes utilizing high-performance polymer materials. We have built a solid reputation on solving complex challenges requiring exacting standards. Our lined pipe systems and rotational lining solutions provide the highest level of corrosion protection for costly equipment and infrastructure.

Description of ZHW PTFE Lined Pipe Systems

Standard PTFE lined pipe systems can be the most economical solution for conveying or treating highly corrosive fluids under severe service conditions. Originally developed by DuPont™, PTFE is sold under the Teflon® trade name. Other manufacturers market PTFE under other trade names.

ZHW Products use of DuFlon™ PTFE lined spools and fittings for the CHINA market. Some lined pipe system components are manufactured exclusively from Teflon® PTFE. We distribute the following liners and fittings:

  • Paste-extruded PTFE liners up to DN300
  • Single-piece isostatically molded PTFE lined fittings up to DN300

ZHW Rotational Lining Solutions

In addition to standard PTFE lined pipe systems, ZHW Products provides standard and custom rotational lining solutions. Our specialized technologies and materials let us bond a seamless polymer layer to the interior of virtually any metallic structure, regardless of shape or complexity. We offer a full range of vertically integrated manufacturing services to deliver complete turnkey solutions.

Maximum dimensions for rotationally lined structures:

  • DN250-DN1000
  • Length:5m-10m
  • Available lining materials:
  • PFA (Teflon®)
  • ETFE (Tefzel®)
  • PVDF (Kynar®)
  • ECTFE (Halar®)
  • Nylon 12 (ZHW P4)
  • HDPE (high-density polyethylene)

For more information about the features and benefits of the ZHW PTFE lining pipes, Download our brochure.

For up-to-date pricing and availability information. Contact ZHW today.

The corrosion resistance of PTFE lining
Medium Concentration (%) Temperature (℃) Corrosion resistance
H2SO4 10 Normal temp. Excellent
75 70 Excellent
92 100 Excellent
98 100 Excellent
HNO3 5 Normal temp. Excellent
25 Normal temp. Excellent
98 100 Excellent
HCL 35~38 100 Excellent
10 Normal temp. Excellent
C2H4O3 10 Normal temp. Excellent
50 100 Excellent
100 Normal temp. Excellent
100 100 Excellent
C4H8O2 100 Normal temp. Excellent
50 Normal temp. Excellent
H3PO4 50 70 Excellent
C4H10O 100 Normal temp. Excellent
C4H8O2 100 Normal temp. Excellent
Gasoline 100 Normal temp. Excellent
H2O2 30 Normal temp. Excellent
50 Normal temp. Excellent
C6H5NO2 100 Normal temp. Excellent
NaOH 10 Normal temp. Excellent
50 Normal temp. Excellent
40 100 Excellent
50 70 Excellent
NaClO 70 Excellent
HF 40 Normal temp. Excellent
99 100 Good
C18H34O2 100 一10 ~ +30 Excellent
H2SO4 X SO3 100 Normal temp. Excellent
CH2=CH-CN 0 Normal temp. Good
Note: ZHW specification of PTFE lining shown in the table are considered normal situation and if any other special using situation please contact ZhongHaiWei.
For more accurate quotation please provide as following information:
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Temperature ___________________________________
Application ___________________________________
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