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PTFE lined 90 degree elbow in carbon steel with white fluoropolymer liner flared over the flange face
Lined Fittings

PTFE Lined Elbow 90°

Lined 90° bend, NB 1/2" to 16", both flanges fixed

Lined 90° elbow in carbon steel, NB 1/2" to 16", with centre-line-to-face from 65 mm to 610 mm. PTFE across the range; PFA and FEP from NB 6" upward.

Request a quotation Full technical data and dimensions Request the datasheet
At a glance
Product typeLined 90° elbow
Body / steel gradeBend ASTM A 106 Gr. B, flanges IS 2062 plate / ASTM A 105
Lining materialPTFE / PFA / FEP
Liner standardASTM D 1457 / ASTM D 4894-19 (PTFE), ASTM D 3307 (PFA), ASTM D 2116 (FEP)
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 standardASME/ANSI B16.5
Flange classClass 150 standard; Class 300 on request
Size rangeNB 1/2" to NB 16"

Product overview

What it does, and where it fits.

The 90° elbow turns a lined run through a right angle without exposing steel to the process. The bend is formed from ASTM A 106 Gr. B pipe, flanged to ASME/ANSI B16.5 Class 150, and lined so that the fluoropolymer flares over both faces and seals against the adjoining component.

An elbow is the point in a line where velocity, abrasion and impingement are highest, which is exactly where an unlined carbon steel bend fails first. The fluoropolymer liner takes that duty with a low-friction, chemically inert surface.

Both flanges are fixed in the standard build. One fixed and one loose flange, or two loose flanges, can be specified where bolt-hole alignment on site is awkward. A vent hole is drilled through the bend as on every lined component.

Features

Built into every unit.

  • Bend formed from ASTM A 106 Gr. B carbon steel with ASME/ANSI B16.5 Class 150 flanges
  • Standard version has both flanges fixed
  • Centre line to face 65 mm at NB 1/2" to 610 mm at NB 16"
  • PTFE liner across the full range; PFA and FEP from NB 6" upward
  • Vent hole to relieve permeation pressure
  • Jacketed and stainless steel bodies on request

Benefits

Why it earns its place in the line.

  • 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
  • Completely resistant to hydrolysis with an excellent barrier to water permeation
  • Steel strength on the outside, fluoropolymer chemistry on the inside — at a fraction of the cost of solid exotic alloys

Applications & industries

Where it is specified.

Typical applications

  • Changing direction or bore in an aggressive process line
  • Corrosive acid, alkali and solvent transfer
  • High-purity duties where metal pick-up is unacceptable
  • Effluent treatment and scrubber pipework

Industries served

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

Technical data

Specification for PTFE Lined Elbow 90°.

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

PTFE Lined Elbow 90° — technical specification
Product typeLined 90° elbow
Body / steel gradeBend ASTM A 106 Gr. B, flanges IS 2062 plate / ASTM A 105
Lining materialPTFE / PFA / FEP
Liner standardASTM D 1457 / ASTM D 4894-19 (PTFE), ASTM D 3307 (PFA), ASTM D 2116 (FEP)
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 standardASME/ANSI B16.5
Flange classClass 150 standard; Class 300 on request
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
Vent holes3 mm diameter vent holes — one per fitting; spools under 500 mm get a single central hole, spools over 500 mm get two holes about 150 mm from each end
External protectionZinc epoxy primer, minimum 60 μm dry film, over steel sand-blasted to SA 2.5
CertificationEN 10204 3.1 mill certificates and FDA certification for the fluoropolymer available on request
Standard versionBoth flanges fixed
PTFE Lined Elbow 90° — centre line to face and lining availability
SizeCentre line to face F (±2)PTFEPFAFEP
0.5"65✓——
0.75"75✓——
1"89✓——
1.5"102✓——
2"114✓——
2.5"127✓——
3"140✓——
4"165✓——
6"203✓✓✓
8"229✓✓✓
10"279✓✓✓
12"305✓✓✓
14"546✓✓✓
16"610✓✓✓

All dimensions in mm. ✓ = applicable, — = not applicable, exactly as marked in the catalogue: PFA and FEP linings are offered from NB 6" upward.

Available on request

  • Flange connection: 1 fixed and 1 loose flange, or 2 loose flanges
  • Jacketed body
  • Stainless steel body

FAQ

Questions we are asked about this item.

The catalogue marks PFA and FEP as applicable from NB 6" upward for this item; NB 1/2" to 4" elbows are listed in PTFE only. Send us your duty and we will confirm what can be produced.

The catalogue lists 546 mm at NB 14" and 610 mm at NB 16", against 305 mm at NB 12". The larger bends use a longer radius, so allow for it when setting out the pipework.

Yes in the standard build. One fixed and one loose flange, or two loose flanges, are available if you need rotational freedom to pick up bolt holes.

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

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

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