Datasheet summary
3838 HR-NYV
Engineering summary from PDF text extraction for 3838 HR-NYV. Verify every value with the OEM datasheet.
Summary
Product identification
KMS HR™ FOOD & DAIRY RO ELEMENTS are reverse osmosis spiral elements designed for sanitary applications.
- Membrane Chemistry: Proprietary TFC® polyamide
- Membrane Type: HR™ - High rejection reverse osmosis
- Construction: Sanitary spiral wound with net outerwrap
- Regulatory Status: Conform to USDA 3-A standards and FDA regulations (CFR Title 21)
- Applications:
- Concentration of whey, skim or whole milk, UF permeate/lactose, juices.
- Polishing of RO permeate and evaporator condensate.
- Polishing of water for reuse.
- Membrane Characteristics: HR High Rejection elements provide high flux and high rejections (typically >99.95% protein and lactose rejection).
- Available Options:
- Diameter: 3.8 or 7.9”
- Length: 38” or 39”
- Feed Spacer: N (31 mil) or V (46 mil)
- Outerwrap: Controlled (e.g., NYV) or trimmable (e.g., NYT)
Nominal Performance Membrane active area and feed spacer thickness vary by model:
| Model | Active Membrane Area ft² (m²) | Feed Spacer mil (mm) |
|---|---|---|
| 3838 HR-NYV | 76 (7.1) | 31 (0.8) |
| 3839 HR-NYV | 76 (7.1) | 31 (0.8) |
| 3838 HR-VYV | 61 (5.7) | 46 (1.1) |
| 3839 HR-VYV | 61 (5.7) | 46 (1.1) |
| 8038 HR-NYV | 371 (34.5) | 31 (0.8) |
| 8038 HR-NYT | 371 (34.5) | 31 (0.8) |
| 8038 HR-VYV | 291 (27.0) | 46 (1.1) |
Operating limits
- Typical Operating Pressure: 300 - 600 psi (20.7 – 41.4 bar)
- Maximum Operating Pressure: 650 psi (44.8 bar)
- Operating Temperature Range: 40 - 122°F (5 - 50°C)
- Cleaning Temperature Range: 95 - 122°F (35 - 50°C)
- Allowable pH - Continuous Operation: 4.0 - 10.0
- Allowable pH - Clean-In-Place (CIP): 1.8 - 11.0
- Design Pressure Drop Per Element: 6 - 10 psi (0.4 - 0.7 bar)
- Design Pressure Drop Per Vessel: 30 - 50 psi (2.1 - 3.4 bar)
- Permeate Pressure: Should not exceed baseline (concentrate) pressure at any time. Reverse pressure will damage the element.
- Differential Pressure: Maximum 10 psi (0.7 bar) per element; 50 psi (3.4 bar) for any length vessel.
- Maximum Feed Turbidity: 1 NTU
- Maximum Feed Silt Density Index (SDI): 5.0 (15-minute test)
- Maximum Continuous Chlorine Exposure: 0.1 ppm. Sodium metabisulfite is the preferred chemical to eliminate free chlorine or similar oxidizers. Chlorine tolerance may be significantly reduced if catalyzing metals (e.g., iron) are present or if pH/temperature conditions differ from stated.
- Cationic Polymers and Surfactants: Exposure is not recommended, as it may cause irreversible fouling and void the warranty.
- Lubricants for Installation: Use only water or glycerin to lubricate seals. Petroleum or vegetable-based oils or solvents may damage the element and will void the warranty.
Mechanical / hydraulic
Nominal dimensions (Length A, Diameter B, Inner Diameter C):
| Model | A inches (mm) | B inches (mm) | C inches (mm) |
|---|---|---|---|
| 3838 HR-NYV | 38.0 (965) | 3.8 (96.0) | 0.831 (21.1) |
| 3839 HR-NYV | 38.8 (984) | 3.8 (96.0) | 0.831 (21.1) |
| 3838 HR-VYV | 38.0 (965) | 3.8 (96.0) | 0.831 (21.1) |
| 3839 HR-VYV | 38.8 (984) | 3.8 (96.0) | 0.831 (21.1) |
| 8038 HR-NYV | 38.0 (965) | 7.9 (201.0) | 1.125 (28.6) |
| 8038 HR-NYT | 38.0 (965) | 7.9 (201.0) | 1.125 (28.6) |
| 8038 HR-VYV | 38.0 (965) | 7.9 (201.0) | 1.125 (28.6) |
Disclaimer: This summary is based on the provided text extract and may not include all figures, footnotes, or the latest revisions from the original OEM PDF datasheet. For contractual data, always refer to the specific OEM PDF revision used on your 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.