SFW standard string wound filter cartridges
PP string wound filter cartridge is also called wire wound filter, made of PP string and PP core. Suitable for chemical liquid filtration, pre- filtration of desalination, pre-filtration of home and commercial water treatment systems at POE section.
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Specification
STRUCTURE
String wound filter cartridge consists of multi-hole frames wound closely with PP textile fibers. Diverse kinds of filtering precision can be realized by controlling the winding density. As the outer bore diameter is larger than the inner one, the filter cartridges have a good deep-level filtering capability. SFW standard series has competitive price and acceptable quality and stable performance. Manufacturered by SF in China.
Sizes: 2.5"x10", 2.5"x20", 2.5"x30", 2.5"x40", 2.5"x50"
Miron rates: 1micron, 5micron, 10micron, 25micron, 50micron, 100micron
FEATURES
• Resonable price
• Stable performance
MAIN TECHICAL SPECIFICATION
• Dimension: Outer diameter Ø63±1mm Inner diameter Ø 28mm or Ø 30mm
• Maximum operating Pressure: 0.5MPa （72.5psi）
• Maximum operating Temperature: 60℃（140℉）
TYPICAL APPLICATIONS
• PCB & metal finishing
• Industrial liquid treatment
• Waste water treatment
• Other applications
TABLE 1
FLOW OF FILTER CARTRIDGE
The recommended flow for the filter cartridges in service is shown in the table (L/h for a 250㎜filter cartridge)
Note:
1. The flow of each 250mm（10inch）filter cartridge should not exceed 1200 L/H (317G/H), otherwise its precision may be affected.
2. The flows shown in the above table are only the recommended values. The actual flow of the filter cartridge in service may change due to the liquid nature, temperature, the nature of the eliminated particles, the contents of the particles, etc.
3. It is recommended that a new filter cartridge used in the first time should work under a pressure drop of 0.1 - 0.3 bar (1.45 – 4.35psi ), while the final pressure drop for the filter cartridge exchange is set at 2.5 bar. For the filter cartridge whose precision is lower than 10μm, the pressure drop for the filter cartridge exchange had better be set at 1.0 -1.5 bar (14.5 – 21.8psi).
TABLE 2
DIRT HOLDING CAPACITIES
TABLE 3
ORDERING INFORMATION
SF W 20- 5 P 63 P 28
A B C D
String wound filter cartridge consists of multi-hole frames wound closely with PP textile fibers. Diverse kinds of filtering precision can be realized by controlling the winding density. As the outer bore diameter is larger than the inner one, the filter cartridges have a good deep-level filtering capability. SFW standard series has competitive price and acceptable quality and stable performance. Manufacturered by SF in China.
Sizes: 2.5"x10", 2.5"x20", 2.5"x30", 2.5"x40", 2.5"x50"
Miron rates: 1micron, 5micron, 10micron, 25micron, 50micron, 100micron
FEATURES
• Resonable price
• Stable performance
MAIN TECHICAL SPECIFICATION
• Dimension: Outer diameter Ø63±1mm Inner diameter Ø 28mm or Ø 30mm
• Maximum operating Pressure: 0.5MPa （72.5psi）
• Maximum operating Temperature: 60℃（140℉）
TYPICAL APPLICATIONS
• PCB & metal finishing
• Industrial liquid treatment
• Waste water treatment
• Other applications
TABLE 1
FLOW OF FILTER CARTRIDGE
The recommended flow for the filter cartridges in service is shown in the table (L/h for a 250㎜filter cartridge)
| Micron Rate(μ m) | Viscosity | ||||
| 1cs(water) | 30cs | 60cs | 120cs | 250cs | |
| 0.5 | 70 | 60 | 40 | 25 | - |
| 1 | 150 | 90 | 60 | 40 | - |
| 3 | 300 | 120 | 80 | 50 | - |
| 5 | 500 | 170 | 120 | 60 | 45 |
| 10 | 800 | 300 | 140 | 70 | 60 |
| 20 | 1100 | 540 | 220 | 100 | 95 |
| 30 | 1200 | 670 | 300 | 150 | 130 |
| 50 | 1200 | 880 | 440 | 180 | 160 |
| 75 | 1200 | 1200 | 690 | 230 | 200 |
| 100 | 1200 | 1200 | 750 | 270 | 220 |
1. The flow of each 250mm（10inch）filter cartridge should not exceed 1200 L/H (317G/H), otherwise its precision may be affected.
2. The flows shown in the above table are only the recommended values. The actual flow of the filter cartridge in service may change due to the liquid nature, temperature, the nature of the eliminated particles, the contents of the particles, etc.
3. It is recommended that a new filter cartridge used in the first time should work under a pressure drop of 0.1 - 0.3 bar (1.45 – 4.35psi ), while the final pressure drop for the filter cartridge exchange is set at 2.5 bar. For the filter cartridge whose precision is lower than 10μm, the pressure drop for the filter cartridge exchange had better be set at 1.0 -1.5 bar (14.5 – 21.8psi).
TABLE 2
DIRT HOLDING CAPACITIES
TABLE 3
ORDERING INFORMATION
SF W 20- 5 P 63 P 28
A B C D
| SF | Brand name |
| W | Filter type- W= string wound, PP= melt blown, PPL= PP pleated, CTO= carbon block |
| A | Length- 10/20/30/40, inches. 250/500/750/1000, mm. |
| B | Rating- 0.5/1/3/5/10/25/50/75/100/150/200/250/300 microns |
| P | Yarn material- P= polypropylene, C= cotton, PE= polyester, GF= glass fiber |
| C | Outer diameter: 60/63/110/152 mm |
| P | Inner core material- P= polypropylene, S= stainless steel |
| D | Inner diameter- 28/30/70/100mm |
