Tee Type Strainer (T-Strainer)
Pipeline filtration strainer with large straining area. Removes debris, scale, and foreign particles to protect pumps, valves, and downstream equipment. Cast steel, stainless steel, and cast iron options.
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Quick Summary – Tee Type Strainer
- T-shaped inline strainer for pipeline debris removal
- Larger straining area than Y-strainers – lower pressure drop
- Body: Cast Steel WCB, SS304/SS316, Cast Iron, Ductile Iron
- Screen: SS304 or SS316 wire mesh (20 to 200 mesh)
- Sizes: 2" to 24" (DN50 to DN600). Class 150, 300, 600
- End connection: Flanged per ASME B16.5
- Applications: Oil & gas, petrochemical, power plants, water treatment
How a Tee Type Strainer Works
A tee type strainer is installed inline in the pipeline with the straining element positioned in the perpendicular branch (the stem of the T). Fluid enters through the inlet, passes through the wire mesh screen that traps debris, and exits through the outlet. The collected debris settles in the bottom of the screen basket. A blow-down connection at the bottom allows cleaning without removing the strainer from the pipeline. The perpendicular orientation provides a larger screen area than Y-strainers, resulting in lower pressure drop and longer intervals between cleaning cycles.
Technical Specifications
| Parameter | Specification |
|---|---|
| Design Type | Tee (T-Type) Inline Strainer |
| Size Range | 2" to 24" (DN50 to DN600) |
| Pressure Class | ASME Class 150, 300, 600 |
| Body Material | ASTM A216 WCB, A351 CF8M, A351 CF8, A126 Class B, A536 GGG40 |
| Screen Material | SS304 or SS316 perforated / wire mesh |
| Mesh Size | 20 mesh (0.84mm) to 200 mesh (0.074mm) |
| End Connection | Flanged – RF/RTJ per ASME B16.5 |
| Gasket | Spiral wound SS316 + graphite filler |
| Bolting | ASTM A193 B7 studs + A194 2H nuts |
| Design Standard | ASME B16.34 |
| Testing | Hydrostatic shell and seat test per API 598 |
| Painting | Primer coat / epoxy as per project specification |
| Drain Connection | ½" NPT blow-down at bottom of basket |
Materials of Construction
| Component | Carbon Steel | Stainless Steel | Cast Iron |
|---|---|---|---|
| Body | ASTM A216 WCB | ASTM A351 CF8M (SS316) | ASTM A126 Class B |
| Cover | ASTM A216 WCB | ASTM A351 CF8M | ASTM A126 Class B |
| Screen | SS304 mesh | SS316 mesh | SS304 mesh |
| Gasket | SS316 + Graphite SPW | SS316 + PTFE SPW | Non-asbestos |
| Bolting | A193 B7 / A194 2H | A193 B8M / A194 8M | CS Grade 5 |
Features & Benefits
Large Straining Area
T-shape provides 2-3x more screen area than Y-strainers, resulting in lower pressure drop and longer service intervals between cleaning cycles.
Easy Cleaning
Blow-down connection at bottom allows quick flushing without pipeline shutdown. Screen basket removable through cover for thorough cleaning or replacement.
Equipment Protection
Protects downstream pumps, valves, meters, heat exchangers, and control instruments from damage caused by pipeline debris, welding slag, and scale.
Versatile Mesh Options
Available in 20 to 200 mesh sizes. Perforated plate option for heavy-duty coarse straining. Custom mesh to match your process requirements.
Applications
Oil & Gas
Pipeline start-up straining, pump suction protection, compressor inlet filtration, separator inlet protection.
Petrochemical
Process line filtration, heat exchanger protection, reactor feed straining, catalyst bed protection.
Power Plants
Boiler feed water straining, cooling water filtration, condensate system protection, steam line straining.
Water Treatment
Raw water intake straining, distribution system protection, irrigation filtration, industrial water supply.