Lined Fittings
Lined Fittings
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Full technical data and dimensions
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PTFE Lined Elbow 45°
Lined 45° bend, NB 1/2" to 16", both flanges fixed
Lined 45° elbow for gentle direction changes, NB 1/2" to 16", centre-line-to-face 45 mm to 203 mm. PTFE across the range; PFA and FEP from NB 6" upward.
| Product type | Lined 45° elbow |
|---|---|
| Body / steel grade | Bend ASTM A 106 Gr. B, flanges IS 2062 plate / ASTM A 105 |
| Lining material | PTFE / PFA / FEP |
| Liner standard | ASTM D 1457 / ASTM D 4894-19 (PTFE), ASTM D 3307 (PFA), ASTM D 2116 (FEP) |
| Lining options | Virgin or anti-static (conductive black) PTFE to ASTM D 4894 & D 4895, PFA to ASTM D 3307, FEP to ASTM D 2116 |
| Flange standard | ASME/ANSI B16.5 |
| Flange class | Class 150 standard; Class 300 on request |
| Size range | NB 1/2" to NB 16" |
Product overview
What it does, and where it fits.
A 45° elbow changes direction with less turbulence and lower pressure drop than a right-angle bend, which matters on slurry duties and on long runs where every fitting adds head loss. The lined version keeps a continuous fluoropolymer bore through the turn.
Construction mirrors the 90° elbow: ASTM A 106 Gr. B bend, IS 2062 or ASTM A 105 flanges to ASME/ANSI B16.5 Class 150, both flanges fixed as standard, and a PTFE, PFA or FEP liner flared over both faces.
Features
Built into every unit.
- Gentler turn than a 90° elbow — lower pressure drop and less impingement wear
- ASTM A 106 Gr. B bend with B16.5 Class 150 flanges
- Centre line to face 45 mm at NB 1/2" to 203 mm at NB 16"
- PTFE across the range; PFA and FEP from NB 6" upward
- Both flanges fixed as standard
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
- Offsets and gentle direction changes in lined runs
- Slurry and abrasive service where turbulence must be limited
- Long lines where fitting pressure drop is significant
- Corrosive acid, alkali and solvent transfer
- High-purity duties where metal pick-up is unacceptable
Industries served
- Chemical processing
- Pharmaceutical
- Petrochemical
- Oil & gas
- Power generation
- Pulp & paper
- Mining & metallurgy
- Agrochemicals & dyes
Technical data
Specification for PTFE Lined Elbow 45°.
Figures below are for this product only — every item in the range carries its own dimension table.
| Product type | Lined 45° elbow |
|---|---|
| Body / steel grade | Bend ASTM A 106 Gr. B, flanges IS 2062 plate / ASTM A 105 |
| Lining material | PTFE / PFA / FEP |
| Liner standard | ASTM D 1457 / ASTM D 4894-19 (PTFE), ASTM D 3307 (PFA), ASTM D 2116 (FEP) |
| Lining options | Virgin or anti-static (conductive black) PTFE to ASTM D 4894 & D 4895, PFA to ASTM D 3307, FEP to ASTM D 2116 |
| Flange standard | ASME/ANSI B16.5 |
| Flange class | Class 150 standard; Class 300 on request |
| Size range | NB 1/2" to NB 16" |
| Temperature range | Continuous service to 260 °C (PTFE melting point 327 °C, PFA 306 °C, FEP 260 °C) |
| Pressure rating | ASME/ANSI B16.5 Class 150 flanges as standard; Class 300 available on request |
| Manufacturing standard | ASTM F 1545 |
| Spark testing | Every lined component spark tested at 5000 × E volts (E = liner thickness in mm), to a maximum of 15 000 V |
| Hydro testing | Hydrostatic or pneumatic test according to the lining technique; hydrostatic test on components with vent holes |
| Inspection | Dimensional and visual examination of liner and steel parts — weld aspect, overall dimensions, collar size, liner thickness, surface flaws and paint thickness |
| Vent holes | 3 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 protection | Zinc epoxy primer, minimum 60 μm dry film, over steel sand-blasted to SA 2.5 |
| Certification | EN 10204 3.1 mill certificates and FDA certification for the fluoropolymer available on request |
| Standard version | Both flanges fixed |
| Size | Centre line to face F (±2) | PTFE | PFA | FEP |
|---|---|---|---|---|
| 0.5" | 45 | ✓ | — | — |
| 0.75" | 45 | ✓ | — | — |
| 1" | 45 | ✓ | — | — |
| 1.5" | 57 | ✓ | — | — |
| 2" | 64 | ✓ | — | — |
| 2.5" | 76 | ✓ | — | — |
| 3" | 76 | ✓ | — | — |
| 4" | 102 | ✓ | — | — |
| 6" | 127 | ✓ | ✓ | ✓ |
| 8" | 140 | ✓ | ✓ | ✓ |
| 10" | 165 | ✓ | ✓ | ✓ |
| 12" | 190 | ✓ | ✓ | ✓ |
| 14" | 190 | ✓ | ✓ | ✓ |
| 16" | 203 | ✓ | ✓ | ✓ |
All dimensions in mm. PFA and FEP linings are offered from NB 6" upward, as marked in the catalogue.
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.
Where pressure drop or impingement wear matters. Two 45° bends turning a corner produce less turbulence than a single 90°, at the cost of an extra joint and more space.
No. The liner is produced to the thickness specified for the bore and the whole component is spark tested at 5000 V per mm of liner thickness, which would reveal any thin spot.
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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.
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