LP100

Summary

Product identification

LP100 Low Pressure RO Membrane Elements (LP Series) are designed for brackish water desalination. They feature low operating pressure, high permeate flow, and high rejection rates for soluble salt, TOC, and SiO₂.

Typical applications include:

• Drinking water production: packaged water, direct drinking water, food processing water.
• Purified water production: pharmaceutical water, medical water, electronics water.

Product performance

Performance data for the LP100 model under specified test conditions:

• Stable Rejection Rate: 99.7%
• Permeate Flow: 2500 GPD (9.4 m³/d)
• Active Membrane Area: 100 ft² (9.3 m²)
• Feed Spacer Thickness: 28 mil

Test Conditions:

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

Note: Each membrane element may have ±15% variation in permeate flow.

Operating limits

• Maximum operating pressure: 600 psi (4.14 MPa)
• Maximum feedwater temperature: 45 ℃
• Maximum inlet flow rate: 3.6 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): 1079×117×127 mm
• Connector material number: 3.02.09.0003

Important information on storage and operation

• Preservation: Dry membrane elements are shipped without preservation solution but must be kept wet after initial soaking. Wet membrane elements contain 1.0% sodium bisulfite (with 10% propylene glycol antifreeze in winter) as a preservation solution and are vacuum-packaged.
• Long-term storage (wet elements): Preservation solution is required if elements are not used for extended periods.
• Initial Operation:
  • Flush for 15-25 minutes at low pressure (do not soak overnight).
  • Subsequently flush for 60-90 minutes at high pressure (water flow not less than 50% of system design flow).
  • The permeate and concentrated water from the first hour of initial operation must be discharged.
• Warranty: The operating limits and guidelines provided are part of the limitations for the three-year membrane element warranty.
• Chemical Use: The addition of any chemicals that may affect the membrane element during storage or operation is prohibited. Vontron Technology disclaims liability for consequences arising from the use of such chemicals.
• Documentation: Refer to the Product Manual for detailed information on installation, commissioning, storage, and transportation.

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Disclaimer: This summary is based on the provided text extract. It may not include all figures, footnotes, or the latest revisions of the OEM PDF datasheet. Contractual data must match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet