Filtro tipo T de acero fundido DN80 PN16
Tamaño: 1/2″-24″(DN15~DN600)
Clasificación de presión: 150LB-2500LB/PN16~PN160/10K~60K)
Material: A351CF8M/CF8/CF3/CF3M,A216WCB,A217 WC6 A352 LCB/LCC,A105,F304,F316,F51/F53,F11.F2.C3.C95800
Temperatura adecuada: 425 °C (diferentes temperaturas eligen diferentes materiales). Medio adecuado: agua, vapor, petróleo y gas natural, etc.

Descripción:
Estándares de diseño:ASME B16.34
Longitud de la estructura: ASME B16.10
Estándar de tamaño de conexión: ANSI B16.5
Estándares de prueba e inspección: API598

316L T-type strainer is a pipeline filtration device made of 316L stainless steel, shaped like the letter “T”, used to remove solid impurities from fluids and protect downstream equipment.

Core Parameters

• Material: 316L stainless steel, low carbon content, excellent corrosion resistance, suitable for chemical, marine, food, pharmaceutical and other corrosive environments.
• Structure: T-shaped three-way design, inlet, outlet and drain/inspection port; built-in filter screen/basket, precision 10–500 μm optional.
• Connection: Flange, thread, clamp, welding; common specifications DN15–DN500, pressure PN10–PN420, temperature -200°C–450°C.
• Característica: Low flow resistance, easy to disassemble and clean, can be drained and sampled without stopping.

Main Advantages

• ✅ Strong corrosion resistance: Resists acids, alkalis, salts and various chemical media, far better than 304.
• ✅ High reliability: Low carbon, good toughness, not easy to rust, long service life.
• ✅ Wide applicability: Suitable for water, oil, gas, steam, solvents, etc.; widely used in petrochemical, food and beverage, medicine, water treatment, power and other industries.
• ✅ Easy maintenance: Open the end cover to take out the filter element for cleaning, no need to remove the whole machine.

Aplicaciones comunes

• Protect pumps, valves, meters, heat exchangers and other precision equipment from wear and blockage.
• Filtration in corrosive working conditions: seawater, brine, acid-base solution, chemical raw materials, etc..
• Sanitary grade occasions: food, beverage, pharmaceutical, biological engineering, requiring no pollution and easy sterilization.
• Here is the complete specification, selection, and dimension guide for 316L T-type Strainer, organized for easy reference and engineering use.

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  📋 316L T-type Strainer – Full Technical Data

  1. Common Model & Specification Table

  📌 Pressure Rating: PN10 / PN16 / PN25 / PN40 | Class 150 / Class 300

✅ Model Code Example:

ST-316L-16P-DN100-40M

→ ST = T-type Strainer | 316L = Material | 16P = PN16 Pressure | DN100 = Size | 40M = 40 Mesh

2. Installation Dimension Reference Table

▶ DN15 – DN50 (Small Bore)

📝 Note: Dimensions vary slightly by manufacturer and pressure class. Above is standard industry data.

FAQ: 316L T-type Strainer

🧾 Material & Performance

A: 316L is a low-carbon version of 316 stainless steel (carbon content ≤ 0.03%).

• Compared to 304: It adds molybdenum (Mo), giving much better resistance to acids, alkalis, chlorides, and seawater.
• Compared to 316: Lower carbon eliminates the risk of intergranular corrosion after welding; no need for post-weld heat treatment.

  ✅ Best choice for marine, chemical, food, pharmaceutical, and high-humidity environments.

A: Suitable for water, oil, gas, steam, seawater, brine, weak acid/alkali solutions, solvents, and chemical fluids.

❌ Not recommended for highly concentrated strong acids, fluorine-containing media, or molten alkali metals (will cause corrosion).

A:

• Pressure: Standard PN10/16/25/40 or Class 150/300; max ~4.0 MPa (40 bar).
• Temperature: -20°C to +450°C (depends on gasket material: PTFE ≤ 200°C, Graphite ≤ 450°C).

📏 Selection & Specification

A: Follow this rule: select precision equal to 1/2 ~ 1/3 of the smallest gap in downstream equipment.

• 20–40 Mesh (420–840 μm): Protect pumps, compressors, large-diameter valves.
• 60–100 Mesh (150–250 μm): Control valves, instruments, heat exchangers, nozzles.
• 150–200 Mesh (75–100 μm): Fine filtration, food/pharma grade, pre-filtration for precision systems.
• >200 Mesh: Custom fine filtration; note: higher precision = larger pressure drop.

A:

• Thread (BSP/NPT): DN15–DN50, low pressure, easy installation.
• Socket Weld: DN15–DN80, high pressure, zero leakage.
• Flange: DN50–DN500, standard industrial use (HG/T, ANSI, JIS, GB standards).
• Clamp: Sanitary grade (food/pharma), quick assembly.

A: ❌ No. T-type strainers have a fixed flow direction: Inlet → Horizontal → Outlet, with the drain port pointing downward. Installing backwards will block flow and damage the screen.

🔧 Installation & Operation

A:

1. Install horizontally; keep the drain/inspection port facing straight down.
2. Align flow direction with the arrow marked on the body.
3. Leave enough space above/below for removing the screen and opening the end cover.
4. Install pressure gauges before and after the strainer to monitor blockage.
5. For high-temperature service, warm up slowly to avoid thermal shock.

A:

• Clean state: 0.01–0.05 MPa (0.1–0.5 bar).
• Clean or replace the screen when ΔP > 0.1 MPa (1.0 bar).
• High viscosity fluid or fine mesh will increase pressure drop — select a larger size if needed.

A: ❌ Not recommended. Vertical installation makes dirt settle directly back into the flow path, reduces filtration efficiency, and makes cleaning difficult. Only use special vertical-type designs if required.

🧹 Maintenance & Troubleshooting

A: Depends on fluid cleanliness:

• Clean media: Every 3–6 months.
• Slightly dirty: Every 1–4 weeks.
• Dirty / high impurity: Monitor pressure drop; clean immediately when ΔP rises.

  ✅ Best practice: Install a differential pressure gauge to know exactly when cleaning is needed.

A:

1. Isolate the strainer, release pressure completely.
2. Remove the end cover, take out the screen/basket.
3. Rinse with water or steam; use a soft brush — do not scratch or deform the mesh.
4. For heavy fouling: Soak in neutral detergent or dilute citric acid (suitable for 316L).
5. Inspect screen for holes, deformation, or corrosion; replace if damaged.
6. Replace gasket every time you open the cover to prevent leakage.

A: Common causes:

• Gasket aging, damaged, or improperly installed → Replace gasket.
• Bolts not tightened evenly → Tighten in cross pattern.
• Sealing surface scratched or dirty → Clean and repair surface.

A:

• Mesh precision is too high for the fluid → Use coarser mesh or larger size.
• Fluid contains excessive solids → Add pre-filtration.
• Screen installed backwards → Reinstall correctly.

A: Normally no. But it may show spots if:

• Exposed to high chloride environments (e.g., seawater > 50°C) → Use higher alloy grade (2507) if needed.
• Contaminated by iron particles or other metals → Clean regularly.
• Exceeded temperature/pressure limits → Operate within rated conditions.

📦 Application & Standard

A: Petrochemical, oil & gas, marine & offshore, food & beverage, pharmaceutical, water treatment, desalination, power generation, and fine chemical industries.

A: Design: GB/T, HG/T, ANSI B16.34; Material: ASTM A351 CF8M / A276 316L; Test: API 598, GB/T 13927.