Core Value Proposition
The 304 stainless steel 12 bag multi-filter housing (Model SYCF-DS12-2#) is engineered specifically for process streams with high solids loading and continuous 24/7 operation requirements. Unlike smaller multi-bag systems, this 12-bag configuration delivers 360 m³/h nominal flow capacity through DN250 flanged connections, with a 1550mm vessel diameter that accommodates extended bag change intervals. This housing is specified for mainline filtration duties in chemical processing, power generation water treatment, and industrial wastewater applications where downtime directly impacts production revenue.
Key Features & Benefits
The 12-bag design provides 3x the dirt-holding capacity of 4-bag housings, enabling filtration runs of 7-14 days in applications with influent TSS up to 50 ppm. This translates to 60-70% reduction in bag consumption and maintenance labor.
DN250 flanged connections match standard mainline pipe dimensions in chemical and power plants, eliminating the need for costly reducers and reducing weld points in high-pressure systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SYCF-DS12-2 |
| Housing Material | 304 SS (standard) / 316 SS / Carbon Steel |
| Number of Filter Bags | 12 |
| Design Flow Rate | 360 m³/h |
| Vessel Outer Diameter (A) | 1550 mm |
| Vessel Height (B) | 600 mm |
| Overall Unit Height (H) | 2050 mm |
| Flange Outer Diameter (D) | 900 mm |
| Flange Bolt Circle (F) | 150 mm |
| Inlet Center Height (C) | 1140 mm |
| Inlet/Outlet Connection | DN250 Flanged |
ISO 14001
ISO 9001
cE
SGS
Application Scenarios
Chemical Processing
In natural gas processing plants, the 304 stainless steel 12 bag multi-filter housing removes particulates and degradation products from amine solutions circulating in sweetening units. The 360 m³/h capacity matches typical amine circulation rates in medium-sized gas plants, while the 304 stainless steel construction withstands the elevated temperatures (up to 80°C) and mild corrosive nature of MEA/DEA solutions.
Industrial Wastewater Treatment
In industrial wastewater reuse projects, the 12-bag housing serves as pre-RO protection, removing suspended solids down to 5 microns before membrane separation. The extended service interval (7-10 days) aligns with typical RO cleaning schedules, allowing coordinated maintenance planning.
Case Study
A Chinese chemical plant in Jiangsu Province processing 1,200 m³/day of MDEA amine solution experienced filter bag blinding every 36-48 hours due to high solids loading from upstream carbon filters, causing frequent unplanned shutdowns. The plant replaced two existing 4-bag housings with a single SYCF-DS12-2# 304 stainless steel 12 bag multi-filter housing, installed directly into the 10" main amine line with DN250 connections. The 12-bag configuration extended change-out intervals from 2 days to 10-14 days, reduced monthly bag consumption from 120 to 30 pieces, and cut annual maintenance labor from 420 to 110 hours. Zero unplanned downtime was recorded over six months of operation. The installation achieved full ROI within 12 months. Beyond filter housings, Ayater manufactures a complete range of replacement filter bags in various micron ratings and materials-contact our team for sizing and media selection tailored to your process conditions.
Engineering Guidelines
Effective sizing of a 304 stainless steel 12 bag multi-filter housing requires evaluating flux rate per bag and pressure drop accumulation-not just total flow. At 360 m³/h, the SYCF-DS12-2# runs at 30 m³/h per bag, within the recommended range for water-like fluids. Actual service life, however, depends on fluid viscosity, solids loading, and particle size distribution, which determine how rapidly pressure drop approaches the change-out threshold. The maximum allowable differential pressure is defined by the filter bag manufacturer's rating, typically between 0.035 and 0.07 MPa for standard industrial bags; exceeding this risks blinding, media rupture, or bypass. For heavy solids loads, selecting higher-capacity bags or adding pre-filtration can significantly extend run times. The ½" BSPT vent and bottom low-point drain enable complete depressurization and drainage before bag change, ensuring safe handling of hot or hazardous process fluids.
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