Product

Lined Equal / Unequal Tee

Our PFA lined tee is available in sizes ranging from 25 mm to 300 mm in diameter, with lining thickness varying from 3 mm to 8 mm depending on the size. It features a robust outer shell made of carbon steel or stainless steel for structural strength, while the internal surface is lined with high-performance fluoropolymers such as PTFE, PFA, or FEP to provide exceptional chemical resistance and a non-reactive flow path. These lined tees are widely used in chemical processing, pharmaceuticals, petrochemicals, and fertilizer industries, where handling acids, alkalis, solvents, and hazardous fluids is common. It is manufactured in compliance with standards such as ASTM F1545

Specifications

Material, dimensions and testing standards

Material

  • Body: Steel fabrication ASTM A106 Gr.B, SCH 40, or cast steel ASTM A216 Gr. WCB.
  • Flange: ASTM A-105 / IS 2062 Gr.A.
  • Lining: PFA conforming ASTM D3307, PP conforming ASTM D4101, PVDF conforming ASTM D3222, and HDPE conforming ASTM D3350.

Dimensions

  • Pipe as per ANSI B36.10.
  • Flange as per ANSI B16.5, 150#.
  • Lining and other dimensional tolerance as per ASTM F1545.
  • Lining thickness: 3 mm to 8 mm.

Testing

  • 100% visual check and dimensional check.
  • 100% spark test at 15 KVDC.
  • 100% hydro test at 29 kg/cm2, holding for 3 minutes, as per ASTM F1545.
  • 100% lining thickness check (>80% of flaring thickness).

Technical Drawing

Cross-sectional reference

Lined Equal / Unequal Tee technical drawing
Representative technical drawing. Detailed dimensions as per dimensional table.

Dimensional Specifications

Dimension Detail

Size
NB1 Inch NB2 L
251”2589
401½”40102
502”50114
502”40114
502”25114
803”80140
803”50140
803”40140
803”25140
1004”100165
1004”80165
1004”50165
1004”40165
1004”25165
1506”150203
1506”100203
1506”50203
2008”200229
25010”250279
30012”300305

Flange Dimension Detail (MM) (ANSI CLASS 150#)

NB Inch R/F P.C.D D T No. of Hole (N) Hole Dia. (Ø)
251”50.879.4108.014.5415.9
401½”73.098.4127.017.5415.9
502”92.1120.7152.419.5419
803”127.0152.4190.524.0419
1004”157.2190.5228.624.0819
1506”215.9241.3279.525.5822.2
2008”269.9298.5342.929.0822.2
25010”323.9362.0406.430.51225.4
30012”381.0431.8482.632.01225.4