Puro I

Summary

Product identification

The PURO-I is a Strengthened RO Membrane Element from the Helixfil Series, designed for improved fouling resistance and resilience to chemical cleaning due to its enhanced polyamide desalination layer cross-link strength.

Application

• Pure water production from surface water (e.g., lake water, river water).
• Desalination of reclaimed water (e.g., industrial wastewater, RO concentrated water).

Product water

• Model: PURO-I
• Stable Rejection Rate: 99.75%
• Permeate Flow: 10500 GPD (39.7 m³/d)
• Active Membrane Area: 400 ft² (37.2 m²)
• Feed Spacer Thickness: 34 mil

Test Conditions:

• Operating pressure: 225 psi (1.55 MPa)
• NaCl solution: 2000 mg/L
• Temperature: 25℃
• pH: 7.0 ± 0.5
• Recovery rate: 15%

Notes:

• Each membrane element may have ±15% variation of permeate flow.
• Minimum Rejection Rate: 99.5%

Operating limits

• Maximum operating pressure: 600 psi (4.14 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 flow SDI₁₅: 5

Mechanical / hydraulic

• Packing carton (L:W:H): 1080×216×232mm
• Connector material number: 3.02.09.0006

Important information on storage and operation

• Dry membrane elements leave the factory without preservation solution.
• Wet membrane elements contain 1.0% sodium bisulfite as preservation solution (with 10% propylene glycol antifreeze added in winter) and are vacuum packaged.
• Dry membrane elements must be kept wet after initial soaking. Wet membrane elements not in use for extended periods require preservation solution.
• For initial use, a two-stage flush is recommended: 15-25 minutes at low pressure, followed by 60-90 minutes at high pressure (water flow not less than 50% of system design flow).
• Permeate water and concentrated water from the first hour of initial operation must be discharged.
• The specified operating limits are integral to the three-year warranty for the membrane element.
• Adding any chemicals that could affect the membrane during storage or operation is prohibited. Vontron Technology disclaims liability for consequences arising from such use.
• Refer to the Product Manual for detailed instructions on installation, commissioning, storage, and transportation.

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the original document. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet