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Solid PTFE entry pipe showing outer and inner diameter and overall length
Lined Pipes & Spools

PTFE Entry Pipe

Solid PTFE entry pipe, NB 1/2" to 16", to 3000 mm

Pure PTFE entry pipe — no steel backing — for introducing fluid into a vessel where even a lined steel body is unwanted. NB 1/2" to 16" in lengths to 3000 mm.

Request a quotation Full technical data and dimensions Request the datasheet
At a glance
Product typeSolid PTFE entry pipe
Body / steel gradeNone — solid PTFE construction
Lining materialPure PTFE (solid)
Liner standardASTM D 1457
Lining optionsVirgin or anti-static (conductive black) PTFE to ASTM D 4894 & D 4895, PFA to ASTM D 3307, FEP to ASTM D 2116
Flange standardNot applicable — solid PTFE item
Size rangeNB 1/2" to NB 16"
Temperature rangeContinuous service to 260 °C (PTFE melting point 327 °C, PFA 306 °C, FEP 260 °C)

Product overview

What it does, and where it fits.

The entry pipe is machined from solid PTFE rather than lined onto a steel core. That makes it fully inert on every surface, inside and out, which matters when the item is fully immersed in an aggressive batch or where any exposed steel would be attacked from the outside as well as the bore.

Standard supply is a straight entry pipe to ASTM D 1457 in lengths up to 3000 mm across NB 1/2" to 16". A curved entry pipe can be produced on request.

Features

Built into every unit.

  • Solid PTFE construction to ASTM D 1457 — no steel backing
  • Inert on the outer surface as well as the bore
  • Lengths to 3000 mm across NB 1/2" to 16"
  • Straight as standard, curved on request

Benefits

Why it earns its place in the line.

  • Fully immersible — no exposed metal to corrode from the vessel side
  • No metal pick-up in high-purity batches
  • Outstanding corrosion resistance to aggressive organic and inorganic chemicals across a wide temperature range
  • Non-stick, non-wetting bore — low surface energy keeps product moving and simplifies cleaning
  • Chemically inert and pure; no additives, plasticisers, stabilisers or lubricants to contaminate the process fluid
  • The lowest coefficient of friction of any solid, reducing pressure drop and deposit build-up

Applications & industries

Where it is specified.

Typical applications

  • Charging reagents into glass-lined and lined steel reactors
  • Fully immersed service where the outer surface is also attacked
  • High-purity duties intolerant of metallic contamination
  • Retrofitting into existing vessel nozzles

Industries served

  • Chemical processing
  • Pharmaceutical
  • Petrochemical
  • Oil & gas
  • Power generation
  • Pulp & paper
  • Mining & metallurgy
  • Agrochemicals & dyes

Technical data

Specification for PTFE Entry Pipe.

Figures below are for this product only — every item in the range carries its own dimension table.

PTFE Entry Pipe — technical specification
Product typeSolid PTFE entry pipe
Body / steel gradeNone — solid PTFE construction
Lining materialPure PTFE (solid)
Liner standardASTM D 1457
Lining optionsVirgin or anti-static (conductive black) PTFE to ASTM D 4894 & D 4895, PFA to ASTM D 3307, FEP to ASTM D 2116
Flange standardNot applicable — solid PTFE item
Size rangeNB 1/2" to NB 16"
Temperature rangeContinuous service to 260 °C (PTFE melting point 327 °C, PFA 306 °C, FEP 260 °C)
Pressure ratingASME/ANSI B16.5 Class 150 flanges as standard; Class 300 available on request
Manufacturing standardASTM F 1545
Spark testingEvery lined component spark tested at 5000 × E volts (E = liner thickness in mm), to a maximum of 15 000 V
Hydro testingHydrostatic or pneumatic test according to the lining technique; hydrostatic test on components with vent holes
InspectionDimensional and visual examination of liner and steel parts — weld aspect, overall dimensions, collar size, liner thickness, surface flaws and paint thickness
CertificationEN 10204 3.1 mill certificates and FDA certification for the fluoropolymer available on request
Maximum length3000 mm
PTFE Entry Pipe — length and material availability
Size (NB₁)Length max (±2)PTFE
0.5"3000✓
0.75"3000✓
1"3000✓
1.5"3000✓
2"3000✓
2.5"3000✓
3"3000✓
4"3000✓
6"3000✓
8"3000✓
10"3000✓
12"3000✓
14"3000✓
16"3000✓

All lengths in mm. Solid PTFE — the catalogue lists no PFA or FEP option for this item.

Available on request

  • Curved entry pipe

FAQ

Questions we are asked about this item.

Solid. The entry pipe is machined from pure PTFE with no steel backing, which is why it is listed under materials as ASTM D 1457 entry pipe rather than as a liner.

Yes, a curved entry pipe is available on request.

Enquiry

Tell us your line size — we'll confirm the spec.

Send the bore, the media, the temperature and pressure, and the flange standard you work to. Drawings and custom sizes welcome.

Enquire on WhatsAppChat to us on +91 90336 30547 Request the datasheetWe will email the drawing for this item Talk to a technical expertMaterial selection and duty review Send a drawingWe fabricate to your isometric or sketch Request a custom sizeNon-standard bores, lengths and drilling

Not sure which spec fits your process?

Send your requirement — media, temperature, pressure, dimensions — and we'll recommend the right product or fabricate it.

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