STK2 Series Carbon Steel Mechanical Filter Housing (Epoxy/Rubber Lined Pressure Vessel)
STK2 Series Carbon Steel Mechanical Filter Housing (Epoxy/Rubber Lined Pressure Vessel)
The STK2 Series is a robust Carbon Steel (Q235B) Mechanical Filter designed for large-scale industrial filtration. It offers a cost-effective alternative to stainless steel for high-flow applications without compromising durability. To prevent corrosion and ensure water purity, the vessel interior is treated with either Food-grade Epoxy Coating or Natural Rubber Lining.
- Material: High-strength Carbon Steel (Q235B).
- Corrosion Protection: Internal Epoxy or Rubber Lining (3mm-5mm).
- Flow Rate: 2 T/h to 120 T/h (Scalable).
- Application: Large Industrial Water, Cooling Water, Wastewater.
The STK2 Series is a robust Carbon Steel (Q235B) Mechanical Filter designed for large-scale industrial filtration. It offers a cost-effective alternative to stainless steel for high-flow applications without compromising durability. To prevent corrosion and ensure water purity, the vessel interior is treated with either Food-grade Epoxy Coating or Natural Rubber Lining.
- Material: High-strength Carbon Steel (Q235B).
- Corrosion Protection: Internal Epoxy or Rubber Lining (3mm-5mm).
- Flow Rate: 2 T/h to 120 T/h (Scalable).
- Application: Large Industrial Water, Cooling Water, Wastewater.
Product Overview
The STK2 Carbon Steel Pressure Filter is the workhorse of industrial water pre-treatment. Constructed from high-quality carbon steel plates with automated welding, these vessels are built to withstand high pressure (standard 0.6MPa - 1.0MPa). They are typically filled with Quartz Sand, Anthracite, Activated Carbon, or Manganese Sand to remove turbidity, suspended solids, and organics.
Internal Lining Options (Critical for Longevity)
Since carbon steel is prone to rust, we offer two professional lining solutions:
- Option A: Epoxy Coating (Anti-Corrosion Paint): A cost-effective solution suitable for fresh water, cooling water, and general filtration. The coating provides a smooth surface and basic rust protection.
- Option B: Rubber Lining (Vulcanized Rubber): The premium choice. A 3mm-5mm thick rubber layer is bonded to the interior. It offers superior resistance to abrasion (from sand friction) and chemical corrosion (acids/alkalis/salts). Highly recommended for seawater desalination pre-treatment or aggressive wastewater.
Structural Features
- Heavy Wall Thickness: Ranging from 3.0mm to 10.0mm (for the Φ3200mm model), ensuring safety under pressure.
- Maintenance Access: Large models (≥Φ1000mm) are equipped with Manholes and Handholes for easy media loading and internal inspection.
- Distribution System: Internal upper and lower distributors (ABS/Stainless Steel/High-Flow Strainers) ensure uniform water flow and prevent media loss.
Technical Specifications (STK2 Carbon Steel Series)
Standard dimensions, lining options, and media loading capacity.
| Model | Size (Dia x H) | Thickness | Flow Rate (T/h) | In/Outlet | Lining Option | Reference Media Loading | ||
|---|---|---|---|---|---|---|---|---|
| Quartz Sand | Activated Carbon | Resin | ||||||
| MMFC-D500×1900 | Φ500×1220 | 3.0mm | 2-3 | DN40 | Epoxy / Rubber | 245kg | 80kg | 175L |
| MMFC-D600×1950 | Φ600×1220 | 3.0mm | 3-5 | DN40 | Epoxy / Rubber | 350kg | 125kg | 225L |
| MMFC-D800×2300 | Φ800×1220 | 3.0mm | 5-8 | DN50 | Epoxy / Rubber | 650kg | 225kg | 425L |
| MMFC-D900×2400 | Φ900×1500 | 4.0mm | 7-10 | DN50 | Epoxy / Rubber | 1000kg | 325kg | 650L |
| MMFC-D1000×2500 | Φ1000×1500 | 4.0mm | 8-12 | DN50 | Epoxy / Rubber | 1200kg | 400kg | 800L |
| MMFC-D1200×2700 | Φ1200×1500 | 4.0mm | 12-17 | DN50 | Epoxy / Rubber | 1700kg | 575kg | 1150L |
| MMFC-D1400×2800 | Φ1400×1500 | 4.0mm | 15-24 | DN65 | Epoxy / Rubber | 2350kg | 800kg | 1550L |
| MMFC-D1500×2850 | Φ1500×1500 | 5.0mm | 18-27 | DN80 | Epoxy / Rubber | 2700kg | 900kg | 1775L |
| MMFC-D1600×2900 | Φ1600×1800 | 5.0mm | 20-30 | DN80 | Epoxy / Rubber | 3650kg | 1225kg | 2525L |
| MMFC-D1800×3400 | Φ1800×1800 | 6.0mm | 25-38 | DN80 | Epoxy / Rubber | 4600kg | 1550kg | 3075L |
| MMFC-D2000×3600 | Φ2000×1800 | 6.0mm | 32-47 | DN100 | Epoxy / Rubber | 5700kg | 1900kg | 3800L |
| MMFC-D2200×3850 | Φ2200×2000 | 6.0mm | 38-57 | DN125 | Epoxy / Rubber | 7650kg | 2550kg | 5100L |
| MMFC-D2400×3900 | Φ2400×2000 | 6.0mm | 45-68 | DN125 | Epoxy / Rubber | 9100kg | 3050kg | 6050L |
| MMFC-D2500×4000 | Φ2500×2000 | 8.0mm | 49-74 | DN150 | Epoxy / Rubber | 9900kg | 3300kg | 6575L |
| MMFC-D2800×4300 | Φ2800×2000 | 8.0mm | 62-92 | DN200 | Epoxy / Rubber | 12400kg | 4125kg | 8250L |
| MMFC-D3000×5100 | Φ3000×2500 | 8.0mm | 70-106 | DN200 | Epoxy / Rubber | 17800kg | 5925kg | 11850L |
| MMFC-D3200×5300 | Φ3200×2500 | 8.0mm | 80-120 | DN200 | Epoxy / Rubber | 20200kg | 6750kg | 13475L |
| MMFC-D3200×5350 | Φ3200×2500 | 10.0mm | 80-120 | DN200 | Epoxy / Rubber | 20200kg | 6750kg | 13475L |
* Note: Height (H) refers to net cylinder height. Rubber lining adds abrasion resistance. Custom nozzle sizes available.
Detailed Applications & Industry Solutions
The STK2 Carbon Steel Mechanical Filter is the preferred choice for large-scale infrastructure and industrial projects where durability meets cost-efficiency:
1. Large-Scale Industrial Circulating Water
Scenario: Cooling towers in steel mills, power plants, and chemical complexes.
Why STK2: These systems handle massive flow rates (1000+ m³/h). Using Stainless Steel would be cost-prohibitive. STK2 carbon steel filters with Epoxy coating provide the perfect balance of large capacity and economy for side-stream filtration to reduce turbidity.
2. Seawater Desalination Pre-treatment
Scenario: Removal of algae, sand, and suspended solids before SWRO membranes.
Why STK2: Seawater is highly corrosive. STK2 vessels with Rubber Lining are essential here. The thick rubber layer creates an impermeable barrier against chloride ions, protecting the carbon steel shell from rapid corrosion.
3. Municipal Wastewater & Textile Dyeing
Scenario: Deep bed filtration for tertiary treatment of wastewater containing dyes or organic pollutants.
Why STK2: When filled with Activated Carbon, large STK2 vessels act as adsorption towers to reduce COD and decolorize water. The robust Q235B construction withstands the harsh environment of wastewater treatment plants.
4. Agricultural Irrigation
Scenario: Filtration of river or well water for drip irrigation systems.
Why STK2: Farmers require large-diameter filters (e.g., Φ1500mm+) that are rugged and affordable. STK2 filters efficiently remove sand and silt that would otherwise clog sensitive irrigation drippers.
Product Overview
The STK2 Carbon Steel Pressure Filter is the workhorse of industrial water pre-treatment. Constructed from high-quality carbon steel plates with automated welding, these vessels are built to withstand high pressure (standard 0.6MPa - 1.0MPa). They are typically filled with Quartz Sand, Anthracite, Activated Carbon, or Manganese Sand to remove turbidity, suspended solids, and organics.
Internal Lining Options (Critical for Longevity)
Since carbon steel is prone to rust, we offer two professional lining solutions:
- Option A: Epoxy Coating (Anti-Corrosion Paint): A cost-effective solution suitable for fresh water, cooling water, and general filtration. The coating provides a smooth surface and basic rust protection.
- Option B: Rubber Lining (Vulcanized Rubber): The premium choice. A 3mm-5mm thick rubber layer is bonded to the interior. It offers superior resistance to abrasion (from sand friction) and chemical corrosion (acids/alkalis/salts). Highly recommended for seawater desalination pre-treatment or aggressive wastewater.
Structural Features
- Heavy Wall Thickness: Ranging from 3.0mm to 10.0mm (for the Φ3200mm model), ensuring safety under pressure.
- Maintenance Access: Large models (≥Φ1000mm) are equipped with Manholes and Handholes for easy media loading and internal inspection.
- Distribution System: Internal upper and lower distributors (ABS/Stainless Steel/High-Flow Strainers) ensure uniform water flow and prevent media loss.
Technical Specifications (STK2 Carbon Steel Series)
Standard dimensions, lining options, and media loading capacity.
| Model | Size (Dia x H) | Thickness | Flow Rate (T/h) | In/Outlet | Lining Option | Reference Media Loading | ||
|---|---|---|---|---|---|---|---|---|
| Quartz Sand | Activated Carbon | Resin | ||||||
| MMFC-D500×1900 | Φ500×1220 | 3.0mm | 2-3 | DN40 | Epoxy / Rubber | 245kg | 80kg | 175L |
| MMFC-D600×1950 | Φ600×1220 | 3.0mm | 3-5 | DN40 | Epoxy / Rubber | 350kg | 125kg | 225L |
| MMFC-D800×2300 | Φ800×1220 | 3.0mm | 5-8 | DN50 | Epoxy / Rubber | 650kg | 225kg | 425L |
| MMFC-D900×2400 | Φ900×1500 | 4.0mm | 7-10 | DN50 | Epoxy / Rubber | 1000kg | 325kg | 650L |
| MMFC-D1000×2500 | Φ1000×1500 | 4.0mm | 8-12 | DN50 | Epoxy / Rubber | 1200kg | 400kg | 800L |
| MMFC-D1200×2700 | Φ1200×1500 | 4.0mm | 12-17 | DN50 | Epoxy / Rubber | 1700kg | 575kg | 1150L |
| MMFC-D1400×2800 | Φ1400×1500 | 4.0mm | 15-24 | DN65 | Epoxy / Rubber | 2350kg | 800kg | 1550L |
| MMFC-D1500×2850 | Φ1500×1500 | 5.0mm | 18-27 | DN80 | Epoxy / Rubber | 2700kg | 900kg | 1775L |
| MMFC-D1600×2900 | Φ1600×1800 | 5.0mm | 20-30 | DN80 | Epoxy / Rubber | 3650kg | 1225kg | 2525L |
| MMFC-D1800×3400 | Φ1800×1800 | 6.0mm | 25-38 | DN80 | Epoxy / Rubber | 4600kg | 1550kg | 3075L |
| MMFC-D2000×3600 | Φ2000×1800 | 6.0mm | 32-47 | DN100 | Epoxy / Rubber | 5700kg | 1900kg | 3800L |
| MMFC-D2200×3850 | Φ2200×2000 | 6.0mm | 38-57 | DN125 | Epoxy / Rubber | 7650kg | 2550kg | 5100L |
| MMFC-D2400×3900 | Φ2400×2000 | 6.0mm | 45-68 | DN125 | Epoxy / Rubber | 9100kg | 3050kg | 6050L |
| MMFC-D2500×4000 | Φ2500×2000 | 8.0mm | 49-74 | DN150 | Epoxy / Rubber | 9900kg | 3300kg | 6575L |
| MMFC-D2800×4300 | Φ2800×2000 | 8.0mm | 62-92 | DN200 | Epoxy / Rubber | 12400kg | 4125kg | 8250L |
| MMFC-D3000×5100 | Φ3000×2500 | 8.0mm | 70-106 | DN200 | Epoxy / Rubber | 17800kg | 5925kg | 11850L |
| MMFC-D3200×5300 | Φ3200×2500 | 8.0mm | 80-120 | DN200 | Epoxy / Rubber | 20200kg | 6750kg | 13475L |
| MMFC-D3200×5350 | Φ3200×2500 | 10.0mm | 80-120 | DN200 | Epoxy / Rubber | 20200kg | 6750kg | 13475L |
* Note: Height (H) refers to net cylinder height. Rubber lining adds abrasion resistance. Custom nozzle sizes available.
Detailed Applications & Industry Solutions
The STK2 Carbon Steel Mechanical Filter is the preferred choice for large-scale infrastructure and industrial projects where durability meets cost-efficiency:
1. Large-Scale Industrial Circulating Water
Scenario: Cooling towers in steel mills, power plants, and chemical complexes.
Why STK2: These systems handle massive flow rates (1000+ m³/h). Using Stainless Steel would be cost-prohibitive. STK2 carbon steel filters with Epoxy coating provide the perfect balance of large capacity and economy for side-stream filtration to reduce turbidity.
2. Seawater Desalination Pre-treatment
Scenario: Removal of algae, sand, and suspended solids before SWRO membranes.
Why STK2: Seawater is highly corrosive. STK2 vessels with Rubber Lining are essential here. The thick rubber layer creates an impermeable barrier against chloride ions, protecting the carbon steel shell from rapid corrosion.
3. Municipal Wastewater & Textile Dyeing
Scenario: Deep bed filtration for tertiary treatment of wastewater containing dyes or organic pollutants.
Why STK2: When filled with Activated Carbon, large STK2 vessels act as adsorption towers to reduce COD and decolorize water. The robust Q235B construction withstands the harsh environment of wastewater treatment plants.
4. Agricultural Irrigation
Scenario: Filtration of river or well water for drip irrigation systems.
Why STK2: Farmers require large-diameter filters (e.g., Φ1500mm+) that are rugged and affordable. STK2 filters efficiently remove sand and silt that would otherwise clog sensitive irrigation drippers.
