Datasheet summary
SB20 CA
Engineering summary from PDF text extraction for SB20 CA. Verify every value with the OEM datasheet.
Summary
Product Identification
The TRISEP® SB series of reverse osmosis (RO) elements features a Cellulose Acetate (CA) / triacetate blend membrane. The SB20 is a high rejection CA RO membrane designed for purifying water where chlorine is used to control biological growth, offering an excellent combination of solute rejection, fouling resistance, and chlorine tolerance. Its smooth surface morphology makes it suitable for applications where biofouling is a concern.
Date of Specification: 07/01/2021
Membrane Characteristics
Membrane Type: Cellulose Acetate Stabilized Salt Rejection: 98.0% Minimum Salt Rejection: 97.0%
| Model | Part Number | Permeate Flow m³/day (GPD)ᵃ | Membrane Area m² (ft²) | Feed Spacer Thickness (mil)ᵇ |
|---|---|---|---|---|
| TRISEP® PLT 2540-SB20-31 | 151000252 | 1.9 (500) | 2.4 (26) | 31 |
| TRISEP® PLT 4040-SB20-31 | 151013442 | 6.1 (1,600) | 7.4 (80) | 31 |
| TRISEP® 4040-SB20-TSA | 151000442 | 6.1 (1,600) | 7.4 (80) | 31 |
| TRISEP® 8040-SB20-TPA | 151070842 | 24.6 (6,500) | 30.2 (325) | 34 |
| TRISEP® 8040-SB20-TSA | 151000842 | 26.5 (7,000) | 32.5 (350) | 31 |
| TRISEP® 8040-SB20-TSFA | 151040842 | 26.5 (7,000) | 32.5 (350) | 34 |
ᵃ Test conditions: 2,000 ppm NaCl, 29.0 bar (420 psi), 25°C (77°F), 15% recovery, pH 5.5, 30 minutes operation. Flow rates will be no more than 15% below the values shown. ᵇ All models on this sheet have fiberglass outer wrap and diamond-shaped feed spacers. All models include anti-telescoping devices (ATDs) attached to the ends of the element and one brine seal. All 4040 and 8040 models include one interconnector.
Operating Limits
- Maximum Operating Pressure: 41 bar (600 psi)
- Maximum Operating Temperature: 32°C (90°F)
- Nominal Operating pH: 5.5
- Cleaning pH Range: 2.0 – 7.5¹
- Chlorine Tolerance: 0.5 ppm nominal, 1 ppm max
- Maximum Pressure Drop: 1 bar (15 psi) per element; 4 bar (60 psi) per housing
- Maximum SDI₁₅: 5.0
- Maximum Turbidity: 1 NTU
¹ Refer to pH limits in Membrane Cleaning Guide – Cellulose Acetate Elements (TSG-C-005).
Physical Dimensions
| Model | Element Weight kg (lb)ᶜ | Dim. A mm (inches) | Dim. B mm (inches) | Dim. Cᵈ mm (inches) | Permeate Tubeᵉ |
|---|---|---|---|---|---|
| TRISEP® PLT 2540-SB20-31 | 3 (7) | 1,016 (40.0) | 64 (2.5) | 19.1 (0.75) | Male |
| TRISEP® PLT 4040-SB20-31 | 4 (9) | 1,016 (40.0) | 99 (3.9) | 19.1 (0.75) | Male |
| TRISEP® 4040-SB20-TSA | 4 (9) | 1,016 (40.0) | 99 (3.9) | 19.1 (0.75) | Female |
| TRISEP® 8040-SB20-TPA | 16 (36) | 1,016 (40.0) | 201 (7.9) | 38.1 (1.50) | Female |
| TRISEP® 8040-SB20-TSA | 16 (36) | 1,016 (40.0) | 201 (7.9) | 38.1 (1.50) | Female |
| TRISEP® 8040-SB20-TSFA | 16 (36) | 1,016 (40.0) | 201 (7.9) | 28.6 (1.125) | Female |
ᶜ Shipping weight is dependent on packaging material and quantity shipped. ᵈ Diameters for Dimension “C”: For Female elements, “C” is the Inner Diameter. For Male elements, “C” is the Outer Diameter. ᵉ Male elements have a protruding permeate tube, indicated as “D” in the diagram (not provided in extract). Dimension “D” is 25.4 mm (1.0 in).
Important Information
- Start-up: MANN+HUMMEL Water & Fluid Solutions recommends flushing elements for 30 minutes at low pressure and discarding permeate prior to operation. For detailed procedure, refer to Element Start-Up Guide – System Start-Up (TSG-O-005).
- Cleaning: TRISEP® membrane elements require periodic cleaning to ensure proper operation and prevent membrane damage. Refer to Membrane Cleaning Guide – Cellulose Acetate Elements (TSG-C-005).
- Storage: TRISEP® membrane elements must be stored appropriately to ensure proper operation and prevent membrane damage. Refer to Element Storage Guides (TSG-O-009 & TSG-O-010).
Customizable Specialty Elements
MANN+HUMMEL Water & Fluid Solutions offers a range of membranes and element designs for challenging applications, including low-fouling RO, submerged UF, continuous high temperature, ultra-high pressure, and unique sanitary designs. Contact them for customized products.
Disclaimer: This summary is based on the provided text extract and may not include all figures, footnotes, or the latest revisions. Contractual data must match the 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.