Datasheet summary
Zero HP70
Engineering summary from PDF text extraction for Zero HP70. Verify every value with the OEM datasheet.
Summary
Product Identification
The ZERO-HP70 is a high-pressure reverse osmosis membrane element from the ZERO series, specifically designed for Zero Liquid Discharge (ZLD) applications.
Application
This product is developed for highly desalinized membrane applications, targeting brine concentrations with 15,000-35,000 ppm TDS. It is suitable for the intermediate concentration and reduction stage of Zero Liquid Discharge Technology, handling feed water with 15-35 g/L TDS. The design improves upon the SW serial element by enhancing performance under higher pressure, Zeta potential, and hydrophilicity of the membrane.
Product Performance
| Model | Stable Rejection Rate (%) | Permeate Flow GPD (m³/d) | Active Membrane Area ft² (m²) | Feed Spacer Thickness mil |
|---|---|---|---|---|
| ZERO-HP70 | 99.75 | 8800 (33.3) | 400 (37.2) | 34 |
Notes on Performance:
- Test conditions: 800 psi (5.52 MPa) operating pressure, 32000 mg/L NaCl solution, temperature at 25℃, pH 8, recovery rate at 8%.
- Each membrane element may have ±20% variation in permeate flow.
- Minimum Rejection Rate: 99.6%.
Operating Limits
- Maximum operating pressure: 1200 psi (8.28 MPa)
- Maximum feedwater temperature: 45℃
- Maximum inlet flow rate: 17 m³/h
- Maximum concentration of free chlorine: 0.1 mg/L
- Maximum pressure drop per element: 15 psi (0.1 MPa)
- Allowed pH range for feedwater in operation: 2-11
- Allowed pH range for chemical cleaning: 1-13
- Maximum feedwater SDI₁₅: 5
Dimensions and Packaging
- Packing carton (L×W×H): 1080×216×232 mm
- Connector material number: 3.02.09.0002
Important Information
- Dry membrane elements are shipped without preservation solution and are vacuum packaged. Wet membrane elements include 1.0% sodium bisulfite (with 10% propylene glycol antifreeze in winter) as preservation solution.
- Dry membrane elements must be kept wet after soaking; wet elements not in use for extended periods require preservation solution.
- Initial flushing procedure: 15-25 minutes at low pressure, followed by 60-90 minutes at high pressure (flow should not be less than 50% of system design). The permeate and concentrated water from the first hour of operation should be discharged.
- Operating limits and guidelines are part of the three-year warranty terms.
- Adding chemicals that may affect the membrane during storage or operation is prohibited.
- Refer to the Product Manual for installation, commissioning, storage, and transportation details.
Disclaimer: This summary is based on extracted text 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.