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Lined Valves

Lined Three Way

  • Excellent Corrosion Resistance: Inner surface lined with fluorine, capable of resisting almost all chemical media erosion
  • Reliable Connection: Three-way structure with reliable connection and good sealing
  • Good Flow Performance: Reasonable design with minimal pressure loss
  • Flexible Application: Suitable for flow division, confluence, or flow direction change
  • Long Service Life: Fluoroplastic lining is corrosion-resistant with long service life
  • Wide Application Range: Suitable for various corrosive media
Download Spec

Lined Three Way is a special fitting based on the traditional three-way pipe fitting, with a layer of fluoroplastic (such as PTFE, FEP, PFA, etc.) lining on the inner surface. This product is mainly used for flow division or confluence in corrosive medium pipeline systems, effectively changing fluid flow direction or achieving fluid mixing. Lined Three Way has excellent corrosion resistance, capable of effectively resisting the erosion of corrosive media such as strong acids, strong alkalis, and organic solvents, while maintaining the advantages of three-way fittings such as reliable connection and good flow performance. Lined Three Way fittings are widely used in corrosive medium pipeline systems in industries such as chemical, petrochemical, pharmaceutical, pesticide, and dye.

Technical Standards

Item Technical Standard
Design and Manufacturing GB/T 12459, ASME B16.11
Pressure Rating PN1.0, 1.6, 2.5 MPa
Operating Temperature -40℃ to +180℃
Connection Type Flanged Connection, Threaded Connection, Welded Connection
Nominal Diameter DN15-DN600
Lining Material PTFE, FEP, PFA
Applicable Media Strong acids, strong alkalis, organic solvents and other corrosive media
Structure Type Equal Three-way, Reducing Three-way

Basic Models

Model Type Features
STF-1 Lined Equal Three-way Three connection ports with same diameter
STF-2 Lined Reducing Three-way One connection port with different diameter
STF-3 Lined Y-type Three-way Y-type structure with good flow division effect
STF-4 Lined T-type Three-way T-type structure with good flow confluence effect

Main Components Material Table

No. Part Name Material
1 Three-way Body Carbon Steel, Cast Steel, Stainless Steel
2 Inner Lining Layer PTFE, FEP, PFA
3 Connection Flange Carbon Steel, Stainless Steel
4 Sealing Gasket PTFE, Flexible Graphite
5 Bolts Stainless Steel
6 Nuts Stainless Steel
7 Threaded Parts Stainless Steel, Carbon Steel

No drawing available.