Datasheet summary
BX PVDF 250kDa
Engineering summary from PDF text extraction for BX PVDF 250kDa. Verify every value with the OEM datasheet.
Summary
Product identification
This is an Industrial Ultrafiltration Spiral-Wound Element, model BX (PVDF 250kDa). Synder Filtration’s Ultrafiltration Elements are designed to offer an optimal combination of flux and rejection across a comprehensive range of MWCO’s.
- Membrane Type: Proprietary PVDF or PES
- Element Construction: Spiral-Wound with netted outerwrap or fiber glass hardshell (FRP)
Operating limits
- Pressure:
- Max Inlet Pressure: 116 PSI (8.0 Bar)
- Min Outlet Pressure: 10 PSI (0.7 Bar)
- Max Differential Pressure per Element: 18 PSI (1.2 Bar)
- Max Permeate Backpressure: 5 PSI (0.3 Bar)
- Note: Soft start on boost pumps required to minimize pressure/flow shocks to elements.
- Temperature:
- Max. Operating: 122°F (50°C)
- Max. CIP Temperature: 122°F (50°C)
- pH Parameters:
- pH Range during Operation at 25°C Max.: 1.0-11.0
- pH Range during CIP Operation at 50°C Max.: 2.0-11.0
- Peroxide:
- Free Peroxide in Product During Operation: <3 ppm
- Peroxide as a sanitizer at 25°C Max, pH6-7, 10 minutes recirculation: 0.1%
- Chlorine:
- Free Chlorine During Operation: 0 Norm ppm, <0.1 Max ppm
- Chlorine During CIP at pH10.8-11.0 and 50°C: 150 Norm ppm, 180 Max ppm
- Note: Maximum chlorine exposure for all elements is 30 minutes per day at pH and temperature conditions listed above.
Mechanical / hydraulic
Dimensions & Weight
| Element | Model No. | Diameter (B) in (cm) | Length (A) in (cm) | PWT ID/OD in (cm) | Tube Extension (C) in (cm) | Dry Weight lb (kg) |
|---|---|---|---|---|---|---|
| 1.8” | 1812TM | 1.8” (4.6) | 11.75” (29.8) | 0.665” (1.71) | 0.75” (perm) 1.00” (plug) | 1.0 (.45) |
| 2.5” | 2540TM | 2.4” (6.1) | 40.0” (101.6) | 0.75” (1.90) | 1.00” (2.54) | 4.0 (1.8) |
| 2540HF | 2.4” (6.1) | 40.0” (101.6) | 0.625” (1.59) | - | 4.0 (1.8) | |
| 2540HM | 2.4” (6.1) | 40.0” (101.6) | 0.75” (1.90) | 1.00” (2.54) | 4.0 (1.8) | |
| 4” | 4040TM | 3.9” (9.9) | 40.0” (101.6) | 0.75” (1.90) | 1.00” (2.54) | 12.0 (5.5) |
| 4040HM | 3.9” (9.9) | 40.0” (101.6) | 0.75” (1.90) | 1.00” (2.54) | 12.0 (5.5) | |
| 4040HF | 3.9” (9.9) | 40.0” (101.6) | 0.625” (1.59) | - | 12.0 (5.5) | |
| 8” | 7940HF | 7.9” (20.1) | 40.0” (101.6) | 1.138” (2.89) | - | 35.0 (15.9) |
| 8040HF | 7.9” (20.1) | 40.0” (101.6) | 1.125” (2.86) | - | 35.0 (15.9) |
Membrane Area (sq. ft)
| Element | Feed Spacer (in mils) 24 | Feed Spacer (in mils) 31 | Feed Spacer (in mils) 46 | Feed Spacer (in mils) 65 | Feed Spacer (in mils) 80 |
|---|---|---|---|---|---|
| 1812TM | 3.1 | 2.7 | 2.1 | 1.6 | 1.3 |
| 2540M | 28 | 24 | 20 | 16 | 13 |
| 2540F | 30 | 26 | 22 | 17 | 14 |
| 4040M | 81 | 72 | 58 | 46 | 39 |
| 4040F | 86 | 75 | 61 | 49 | 41 |
| 7940F | 379 | 335 | 268 | 210 | 178 |
| 8040F | 379 | 335 | 268 | 210 | 178 |
Recommended Element Cross Flow Rate
| Element | Feed Spacer (in mils) 24 m³/hr | Feed Spacer (in mils) 24 gpm | Feed Spacer (in mils) 31 m³/hr | Feed Spacer (in mils) 31 gpm | Feed Spacer (in mils) 46 m³/hr | Feed Spacer (in mils) 46 gpm | Feed Spacer (in mils) 65 m³/hr | Feed Spacer (in mils) 65 gpm | Feed Spacer (in mils) 80 m³/hr | Feed Spacer (in mils) 80 gpm |
|---|---|---|---|---|---|---|---|---|---|---|
| 1.8” | 0.7 | 3 | 0.8 | 3 | 0.9 | 4 | 1.0 | 4 | 1.1 | 5 |
| 2.5” | 1.3 | 6 | 1.5 | 7 | 1.8 | 8 | 2.0 | 9 | 2.1 | 9 |
| 4.0” | 3 | 15 | 4 | 17 | 5 | 20 | 5 | 23 | 5 | 24 |
| 8” | 15 | 66 | 17 | 75 | 20 | 89 | 23 | 99 | 24 | 105 |
Note: The recommended cross flow rate will be subject to differential pressure limitations and specific applications.
Technical Notes
For element sizes not listed, Synder Filtration can design an element to fit exact needs based on element outer diameter (OD) or vessel/housing inner diameter (ID), element inner diameter (ID), and length. Elements are also available with or without a controlled bypass tail, and additional feed spacers are available. Trials should be conducted to determine optimal application conditions.
Benefits
- Widest range of UF MWCO’s available
- Good resistance to pH and temperature
- High resistance to fouling
- Customizable dimensions for unique housings
Common Applications
- Corn wet milling
- Microbial/Particle removal
Disclaimer: This summary is based solely on the provided text extract. It may not include all figures, footnotes, or the most recent revisions from the original OEM PDF datasheet. For contractual data, always refer to the specific OEM PDF revision used on the project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.