Part of the Arshya Group: IBR Fittings (ibrfittings.com) • Arshya Fittings (arshyafittings.com)
EN 10253 Type B Available ASME B16.9

Buttweld Pipe Tees

Equal Tees  |  Reducing Tees  |  ASME B16.9  |  EN 10253 Type A & B

Manufacturer and exporter of equal and reducing buttweld tees in all material grades. ASME B16.9 and EN 10253 Type A & Type B. Carbon Steel, Alloy Steel, Stainless Steel, Nickel Alloys. EN 10204 3.1/3.2 MTR. PED 2014/68/EU certified. Ships to Europe, UK, Middle East.

Equal and reducing carbon steel buttweld pipe tees — Arshya Pipe Fittings

Range at a Glance

TypesEqual & Reducing
Size½" – 48" NPS
ScheduleSCH 10 – XXS
ASME Std.B16.9
EN Std.EN 10253-1/-2/-3/-4
EN Type BAvailable ✓
MTR3.1 std / 3.2 on request

Tee Types

⊤

Equal Tee (Straight Tee)

All three outlets are the same bore size. The run pipe and branch pipe are of equal diameter. Used where the full flow is split or combined at 90°.

  • ✓ ASME B16.9 — e.g. 4" × 4" × 4"
  • ✓ EN 10253 Type A & Type B
  • ✓ Full bore — no flow restriction
⊤↓

Reducing Tee

The branch outlet is smaller than the run pipe. Designated as Run × Run × Branch (e.g. 6" × 6" × 4"). Used for take-off to smaller sub-headers.

  • ✓ ASME B16.9 — all standard reducing combinations
  • ✓ EN 10253 Type A & Type B
  • Note: specify run size × branch size

Available Material Grades

Carbon Steel

  • ASTM A234 WPB / WPB-W
  • WPL6 (LTCS −46°C)
  • WPL3 (LNG −100°C)
  • EN: 1.0345 / 1.0425 / 1.0473

Alloy Steel (CrMo)

  • WP91 / 1.4903 (P91)
  • WP92 / 1.4901 (P92)
  • WP22 / 1.7380 (P22)
  • WP11 / 1.7338 (P11)
  • WP5 / WP9

Stainless Steel

  • WP316L / 1.4404
  • 316Ti / 1.4571
  • WP304L / 1.4307
  • WP321 / 1.4541
  • Duplex 1.4462 / SD 1.4410

Nickel Alloys

  • Hastelloy C-276 / 2.4819
  • Inconel 625 / 2.4856
  • Incoloy 825 / 2.4858
  • Monel 400 / 2.4360
  • Inconel 600 / 2.4816

EN 10253 Type B Tees

Type B tees are for use at full service pressure, with the same strength as the connecting pipe of the same material and wall thickness. They often need extra wall thickness to achieve this. Type A tees have a reduced pressure factor. The pressure-equipment designer chooses the type, so state "EN 10253 Type A" or "EN 10253 Type B" explicitly in your RFQ. Arshya is one of very few Indian manufacturers certified for Type B across all material families, and we supply Type A too.

Type A vs Type B full comparison →

Request Tee Quote

Specify type (equal/reducing), grade, standard, size

Special Tees

EN 10253 Type B Tees
Equal and reducing, full service pressure
Barred Tees
Pig guide bars, MSS SP-75 / B16.9
Sweepolets
Contoured branch outlets, MSS SP-97

Further reading