

PTFE Lined Equal Cross
Four-way lined cross at line bore, NB 1/2" to 16"
Lined four-way cross with all branches at the same bore — NB 1/2" to 16", centre-line-to-face 65 mm to 381 mm.
| Product type | Lined equal cross |
|---|---|
| Body / steel grade | Cross ASTM A 106 Gr. B or cast SG iron, flanges IS 2062 plate / ASTM A 105 |
| Lining material | PTFE / PFA / FEP |
| Liner standard | ASTM D 3307 (PFA), ASTM D 4894-19 |
| 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 cross takes two branches off a lined run at the same point, which saves a length of pipe and a pair of flange joints compared with two tees. All four faces are flanged to ASME/ANSI B16.5 Class 150 with the liner flared over each.
The body is fabricated from ASTM A 106 Gr. B pipe or supplied as an SG iron casting. All flanges are fixed in the standard build; one fixed with three loose, or four loose flanges, can be specified.
Features
Built into every unit.
- Four flanged branches at the same bore, NB 1/2" to 16"
- Saves a pipe length and two joints against a pair of tees
- Fabricated ASTM A 106 Gr. B body or SG iron casting
- All flanges fixed as standard; loose flange options available
- Class 300 flanges and stainless steel body 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
- Distribution manifolds with opposed branches
- Mixing junctions on lined lines
- Combined feed and return connections at one point
- 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 Cross.
Figures below are for this product only — every item in the range carries its own dimension table.
| Product type | Lined equal cross |
|---|---|
| Body / steel grade | Cross ASTM A 106 Gr. B or cast SG iron, flanges IS 2062 plate / ASTM A 105 |
| Lining material | PTFE / PFA / FEP |
| Liner standard | ASTM D 3307 (PFA), ASTM D 4894-19 |
| 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 | All flanges fixed |
| Size | Centre line to face X (±2) | PTFE | PFA | FEP |
|---|---|---|---|---|
| 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. Centre-line-to-face matches the equal tee of the same bore.
Available on request
- Flange connection: 1 fixed and 3 loose flanges, or 4 loose flanges
- ANSI B16.5 Class 300 flanges
- Stainless steel body
FAQ
Questions we are asked about this item.
It removes a pipe length and two flange joints, which reduces the number of potential leak paths. Support it as you would any heavy lined fitting, since four branches concentrate load at one point.
Then you need the unequal cross, which lists NB₁ and NB₂ separately.
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.
Not sure which spec fits your process?
Send your requirement — media, temperature, pressure, dimensions — and we'll recommend the right product or fabricate it.
Talk to an engineer

