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PTFE lined equal tee with three flanged branches of the same bore and fluoropolymer liner
Lined Fittings

PTFE Lined Equal Tee

Lined equal tee, NB 1/2" to 16", all flanges fixed

Lined three-way tee with all branches the same bore — NB 1/2" to 16", centre-line-to-face 65 mm to 381 mm, lined in PFA or FEP.

Request a quotation Full technical data and dimensions Request the datasheet
At a glance
Product typeLined equal tee
Body / steel gradeTee ASTM A 106 Gr. B or cast SG iron, flanges IS 2062 plate / ASTM A 105
Lining materialPTFE / PFA / FEP
Liner standardASTM D 3307 (PFA), ASTM D 4894-19
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.

An equal tee takes a branch off a lined run at the full line bore, for a parallel train, a recirculation leg or a sampling point. All three faces are flanged to ASME/ANSI B16.5 Class 150 and the liner is flared over each of them.

The tee body is formed from ASTM A 106 Gr. B pipe, or supplied as an SG iron casting, with IS 2062 or ASTM A 105 flanges. The catalogue lists this item with PFA and FEP marked applicable across the whole size range and gives its liner specification as ASTM D 3307 and ASTM D 4894-19; the table below reproduces those marks exactly.

All flanges are fixed in the standard build. One fixed with two loose, or three loose flanges, can be specified where bolt holes are hard to pick up on site.

Features

Built into every unit.

  • Three flanged branches at the same bore, NB 1/2" to 16"
  • Fabricated ASTM A 106 Gr. B body or SG iron casting
  • All flanges fixed as standard; loose flange options available
  • Centre line to face 65 mm at NB 1/2" to 381 mm at NB 16"
  • 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

  • Full-bore branch connections on lined headers
  • Recirculation and bypass legs
  • Sampling and drain take-offs at line size
  • 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 Equal Tee.

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

PTFE Lined Equal Tee — technical specification
Product typeLined equal tee
Body / steel gradeTee ASTM A 106 Gr. B or cast SG iron, flanges IS 2062 plate / ASTM A 105
Lining materialPTFE / PFA / FEP
Liner standardASTM D 3307 (PFA), ASTM D 4894-19
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 versionAll flanges fixed
PTFE Lined Equal Tee — centre line to face and lining availability
SizeCentre line to face X (±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"280—✓✓
12"305—✓✓
14"356—✓✓
16"381—✓✓

All dimensions in mm. The catalogue marks PFA and FEP as applicable for this item across the full range.

Available on request

  • Flange connection: 1 fixed and 2 loose flanges, or 3 loose flanges
  • Jacketed body
  • Stainless steel body

FAQ

Questions we are asked about this item.

The catalogue marks PFA and FEP as applicable for the equal tee and gives its liner specification as ASTM D 3307 and ASTM D 4894-19. Send us your service conditions and we will confirm what lining can be produced for your size.

Then you want the unequal tee, which lists NB₁ and NB₂ separately, or the instrument tee for small instrument branches.

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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