Vontron XLP11-4040 RO Membrane, 2,600 GPD

The Vontron XLP11-4040 Reverse Osmosis Membrane is an extremely low-pressure membrane element designed for efficient treatment of properly pretreated, low-salinity feedwater. Its standard 4-inch × 40-inch configuration supports installation in compatible 4040 pressure vessels and commercial reverse osmosis equipment.

Under specified test conditions, the current XLP11-4040 configuration provides a nominal permeate flow of 2,600 gallons per day, or approximately 9.8 cubic meters per day, with a stable salt-rejection rate of 99.2%. The membrane is tested at 100 PSI, approximately half the test pressure used for many conventional low-pressure brackish-water elements.

The spiral-wound membrane provides approximately 100 square feet of active membrane area and uses a 28-mil feed spacer. Its combination of low-pressure operation, permeate production and dissolved-solids rejection can help reduce pump-pressure requirements in properly designed systems.

The XLP11-4040 is intended for qualifying low-salinity sources such as municipal water, groundwater and surface water. It is also well suited for the second pass of a two-pass RO system when feedwater quality and operating conditions meet the manufacturer’s requirements.

Proper pretreatment is essential for controlling sediment, hardness, scale, iron, organic fouling and oxidizing chemicals. Feedwater chemistry, available pressure, recovery and required permeate quality should be evaluated during system design.

Technical Specification

Testing Conditions

Testing Pressure: 100 psi (0.69MPa)

Testing Solution Temperature: 25 ℃

Concentration of Testing Solution (NaCl): 2000ppm

pH value of Testing Solution: 7.0±0.5

Recovery Rate of Single Element: 15%

Key Features

• Extra-low pressure operation for reduced energy consumption
• High salt rejection for consistent permeate quality
• Compatible with standard 4” x 40” RO housings
• Ideal for municipal and pre-treated feed water
• Lower operating costs compared to standard RO membranes
• Reliable performance and long service life

Applications

• Commercial reverse osmosis systems
• Light industrial water treatment
• Municipal and utility water purification
• RO pretreatment for DI and polishing systems
• Energy-efficient RO system upgrades

Shipping Information

Optimal Purity Solutions is committed to fast, reliable, and professional fulfillment for our authorized dealer network.

Fulfillment & Processing

• Order Processing: Most in-stock orders ship within 1–2 business days

• Custom/OEM Builds: Lead times vary by configuration; your sales representative will confirm timelines

Shipping Coverage

• Domestic: Nationwide shipping throughout the United States

• International: Available for qualified distributors (terms and transit times vary)

Carriers & Methods

• Shipments are sent via trusted national freight and parcel carriers

• LTL/FTL freight available for pallets and bulk orders

• Expedited shipping options available upon request

Packaging & Handling

• Products are professionally packaged to protect against damage in transit

• Palletized and freight shipments are secured and labeled to industry standards

Tracking & Support

• Tracking information is provided once your order ships

• Our logistics team is available to assist with routing, delivery coordination, and special requirements

Important Notes

• Shipping costs are calculated based on weight, dimensions, destination, and service level

• Damages or discrepancies must be reported within 48 hours of delivery

• Products are sold exclusively through authorized water treatment dealers and partners