Hydranautics
ESPA1-4040 Hydranautics Nitto 2,600 GPD at 150 PSI 4 x 40 inch Membranes
ESPA1-4040 Hydranautics Nitto 2,600 GPD at 150 PSI 4 x 40 inch Membranes
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The Hydranautics ESPA1-4040 (manufactured by a Nitto Group Company) is a commercial-grade, Energy Saving Polyamide (ESPA) reverse osmosis membrane engineered to yield maximum productivity and high salt rejection for water treatment systems. Utilizing advanced composite polyamide polymer technology, this 4-inch by 40-inch spiral-wound element is specifically designed for the purification of low TDS (Total Dissolved Solids) tap and brackish water sources. By maximizing membrane permeability without sacrificing structural integrity, it produces uncompromising water purity for critical applications ranging from municipal drinking water production to light industrial process water operations.
Designed for peak efficiency in commercial reverse osmosis systems, the ESPA1-4040 generates a high permeate flow rate of 2,600 GPD (9.8 m³/d) while operating at an exceptionally low test pressure of just 150 PSI. This translates to a substantial reduction in the energy required to pressurize feed water, lowering overall operational expenditure (OPEX) by minimizing the wear and strain on high-pressure system pumps. Featuring 85 square feet of active membrane area, this element offers a nominal salt rejection rate of 99.3%, providing a consistently reliable, high-performance solution for facilities demanding both superior water quality and strict energy management. It provides the ultra-pure water output necessary for spot-free rinses at commercial car washes, prevents mineral scaling in water vending and refilling machines, and guarantees a streakless finish for window washing and solar panel cleaning. Additionally, its robust permeate production makes it an ideal core component for precise nutrient dosing in hydroponics and agriculture, as well as maintaining strict flavor profiles in bottling plants and breweries.
| Specification | Details |
| Model Number | ESPA1-4040 |
| Manufacturer | Hydranautics (Nitto) |
| Element Type | Energy Saving Polyamide RO Membrane |
| Membrane Technology | Composite Polyamide |
| Active Membrane Area | 85 ft² (7.9 m²) |
| Permeate Flow Rate | 2,600 GPD (9.8 m³/d) |
| Nominal Salt Rejection | 99.3% |
| Minimum Salt Rejection | 99.0% |
| Test Pressure (Applied) | 150 PSI (1.05 MPa) |
| Max Applied Pressure | 600 PSI (4.14 MPa) |
| Max Operating Temp | 113°F (45°C) |
| Primary Applications | Spot-Free Rinses (Car Washes), Water Vending & Refilling, Window & Solar Panel Cleaning, Hydroponics & Agriculture, Bottling Plants & Breweries |
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