Hydranautics 8″ Nanofiltration Membranes – Aqua Components

Hydranautics NANO-BW MAX Membrane

aqua@2025 — Thu, 13 Mar 2025 12:48:46 +0000

Hydranautics NANO-BW MAX Membrane are specially designed nanofiltration membranes built to provide high quality performance for water treatment applications that deal with low salinity. Ground and surface water that harbor high quantities of organic substances and pesticides are also suitable applications for these membranes. The NANO-BW MAX membrane delivers up to 90% salt rejection with extremely low pressure for the purposes of savings energy and operational costs, as well aso being simple to install.

Models

Type:

Configuration: Spiral Wound
Membrane Polymer: Composite Polyamide
Nominal Membrane Area: 440 ft2 (40.9 m²)
Feed/Brine Spacer Thickness: 26 mil (0.66 mm)

Features

Standard Operating Limits

Maximum Applied Pressure: 600 psig (4.14 MPa)
Maximum Chlorine Concentration: < 0.1 ppm
Maximum Operating Temperature: 113 °F (45 °C)
pH Range, Operation (Cleaning): 3 – 9 (1 –11.5)
Maximum Feedwater Turbidity: 1.0 NTU
Maximum Feedwater SDI (15 mins.): 5.0
Maximum Feed Flow: 75 gpm (17.0 m³/h)
Maximum Pressure Drop for Each Element: 15 psi

Applications

Removal of color and large molecular weight organics from feedwater.
Industrial, food and beverage, and municipal feedwaters.

Docs

Hydranautics NANO-BW MAX Membrane Data Sheet

Hydranautics HydraCoRe85 pHT8040-46 Membrane

aqua@2025 — Thu, 13 Mar 2025 12:48:45 +0000

Hydranautics HydraCoRe85 pHT8040-46 Membranes are designed to be repellent against oxidants and chemicals while disallowing the passage of organic substances larger than a molecular weight of 3000 Daltons. These nanofiltration membranes are utilized in applications that require the removal of color and other liquid products (juices and sauces).

Models

The stated performance is initial (data taken after 30 minutes of operation), based on the following conditions:

2000 ppm NaCl solution
20% Permeate Recovery
6.5 – 7.0 pH Range
77 °F (25 °C) Operating Temperature

Features

Standard Operating Limits:

Maximum Applied Pressure: 600 psig (4.16 MPa)
Maximum Continuous Chlorine Concentration1: 10 PPM
Maximum Chlorine Concentration for Cleaning1: 100 PPM
Maximum Operating Temperature: 113 °F (45°C)
Operating pH Range: 2-11
Cleaning pH Range: 1-12(For cleaning temperatures 35°C)
Maximum Feedwater Turbidity: 1.0 NTU
Maximum Feedwater SDI (15 mins): 5.0
Maximum Pressure Drop per element: 10 psi

Applications

Removal of color and large molecular weight organics from feedwater.
Industrial, food and beverage, and municipal feedwaters.

Docs

Hydracore membranes are constructed with conventioned reverse osmosis style fabric and elements with reduced fouling potential in order to successfully treat industries such as food and beverage, including commercial, and municipal water applications. These membrane elements come in 4 inch and 8 inch diameter sizes.

Hydranautics HydraCoRe85 pHT8040-46 Membrane Data Sheet

Hydranautics HydraCoRe70 pHT Membrane

aqua@2025 — Thu, 13 Mar 2025 12:48:44 +0000

Hydranautics HydraCoRe70 pHT Membrane are nanofiltration elements built to be foolproof against chlorine and specifically filter color, including acid, fats, protein, and oils from water. They provide high flux capabilities and can be applied in projects within various industries that deal with food and beverages, industrial processes, etc.

Models

Model

Feed Spacer inch (cm)

Area, ft² (m²)

NaCl Rejection

Max Feed Flow,
gpm (m³/hr)

Max. Pressure Drop per Element, psi (bar)

HYDRACoRe70pHT1
8040-46

0.046 (0.12)

275 (25.5)

40.0 (101.6)

7.90 (20.1)

1.125 (2.9) ID

80 (18.2)

13 (0.9)

General Product Description

Configuration: Sanitary Spiral Wound
Membrane Polymer: Sulfonated Polyethersulfone

Features

Standard Operating Limits:

Maximum Applied Pressure: 600 psig (41 bar)
Maximum Continuous Chlorine Concentration2: 10 ppm
Maximum Chlorine Concentration for Cleaning2: 100 ppm
Maximum Operating Temperature: 158°F (70°C)
Operating pH Range: 1-13.5
Cleaning pH Range: 1-13.5
Maximum Pressure Drop for a vessel: 60 psi (4 bar)

Applications

Removal of color and large molecular weight organics from feedwater.
Industrial, food and beverage, and municipal feedwaters.

Docs

Hydranautics HydraCoRe70 pHT Membrane Data Sheet

Hydranautics HydraCoRe70 Membrane

aqua@2025 — Thu, 13 Mar 2025 12:48:42 +0000

Hydranautics manufactures HYDRACoRe70 membrane element that are designed to deliver complete resistance to chemicals and oxidation. These nanofiltration membranes are capable of being applied in color removal applications and organic removal in industrial and municipal projects.

Models

Model

Feed Spacer inch (cm)

Area, ft² (m²)

Permeate

Flow

NaCl Rejection

Test

Pressure

GPD (m³/d)

Average

Min

Max

PSI (MPa)

HYDRACoRe70 8040-46

0.046 (0.117)

280 (26.0)

4,700 (17.8)

90%

70%

95%

75 (5.2)

Type

Outerwrap: FRP hard shell
Membrane Polymer: Sulfonated Polyethersulfone
Molecular Weight Cut-off 720 daltons

Features

Standard Oparating Limits

Maximum Applied Pressure: 600 psig (41 Bar)
Maximum Continuous Chlorine Concentration1: 10 PPM
Maximum Chlorine Concentration for Cleaning1: 100 PPM
Maximum Operating Temperature: 113 °F (45°C)
Operating pH Range: 2-11
Cleaning pH Range: 1-12
(For cleaning temperatures <35C)
Maximum Feedwater Turbidity: 1.0 NTU
Maximum Feedwater SDI (15 mins): 5.0
Maximum Pressure Drop per element 10 psi

Applications

Removal of color and large molecular weight organics from feedwater.
Industrial, food and beverage, and municipal feedwaters.

Docs

Hydranautics HydraCoRe70 Membrane Data Sheet

Hydranautics NANO-SW Membrane

aqua@2025 — Thu, 13 Mar 2025 12:39:16 +0000

The NANO-SW nanofiltration membrane product line is primarily used in the oil and gas industry. These membranes are high-performance nanofiltration membranes which are able to selectively remove sulfate, thereby reducing the risks of scaling and reservoir souring when seawater is injected into the oil containing reservoirs for secondary oil production in offshore production. The membrane rejects 99.8% of sulfate while passing other ions, particularly monovalent ions such as chloride and sodium, allowing for ultra-low-pressure operations.

They use patented Low Differential LD™ technology designed to minimize colloidal fouling. NANO-SW membranes use a patented 34 mil thickness feed spacer that prevents colloidal fouling and increases the effectiveness of membrane cleaning – resulting in lower differential pressure.

As a result, the NANO-SW membrane does not need to be cleaned frequently – thus reducing treatment cost – while offering extreme durability and consistent performance.

NANO-SW membrane is globally acclaimed for high sulfate rejection characteristics in oil and gas seawater injection applications. It significantly reduces operating costs and provides optimum hardness rejection in softening applications.

Models

NANO-SW Specifications:

MgSO4 Permeate Flow (Nominal): 11,000 gpd (41.6 m³/d)
MgSO4 Rejection: 99.8% (99.6% minimum)
Configuration: Spiral Wound
Membrane Polymer: Composite Polyamide
Nominal Membrane Area: 400 ft² (37 m²)
Feed/Brine Spacer Thickness: 34 mil (0.87 mm)

The stated performance is initial (data taken after 30 minutes of operation), based on the following conditions:

2000 ppm MgSO4
130 psi (0.9 MPa) Applied Pressure
77°F (25 °C) Operating Temperature
15% Permeate Recovery
6.5 – 7.0 Feed pH

Features

Standard Operating Limits:

Maxium Applied Pressure (Recommended): 600 psig (4.14 MPa)
Maximum Chlorine Concentration: < 0.1 PPM
Maximum Operating Temperature: 113°F (45°C)
pH Range, Operation (Cleaning): 3.0 – 9.0 (1.0 – 11.5)
Maximum Feedwater Turbidity: 1.0 NTU
Maximum Feedwater SDI (15 mins): 5.0
Maximum Feed Flow: 75 GPM (17.0 m³/h)
Maximum Pressure Drop for Each Element: 15 psi
Typical Seawater Performance†:
Nominal Permeate Flow: 6,500 gpd (24.6 m³/d)
Nominal Chloride Rejection: 25%
Nominal Sulfate Rejection: 99.8%

Applications

Filtering oils and gasses
Industrial use

Docs

Hydranautics NANO-SW Membrane Data Sheet

Hydranautics NANO-BW Membrane

aqua@2025 — Thu, 13 Mar 2025 12:39:14 +0000

Nano BW are high performance nanofiltration membranes ideal for treatment of low salinity surface or ground waters containing high molecular weight organics or pesticides. They provide 50%-90% salt rejection with ultra-low-pressure operations, increased energy savings, and significantly lower installation and operating costs.

Models

NANO-BW Specifications:

MgSO4 Permeate Flow (Nominal): 11,000 gpd (41.6 m³/d)
MgSO4 Rejection (Nominal): 99.7% (99.5% minimum)
Configuration: Spiral Wound
Membrane Polymer: Composite Polyamide
Nominal Membrane Area: 400 ft² (37 m²)
Feed/Brine Spacer Thickness: 34 mil (0.87 mm) with HYDRAblock Technology

The stated performance is initial (data taken after 30 minutes of operation), based on the following conditions:

2000 ppm MgSO4
130 psi (0.9 MPa) Applied Pressure
77 °F (25 °C) Operating Temperature
15% Permeate Recovery
6.5 – 7.0 Feed pH

Features

Standard Operating Limits:

Maximum Applied Pressure: 600 psig (4.14 MPa)
Maximum Chlorine Concentration: < 0.1 PPM
Maximum Operating Temperature: 113 °F (45 °C)
pH Range, Operation (Cleaning): 3.0 – 9.0 (1.0 – 11.5)
Maximum Feedwater Turbidity: 1.0 NTU
Maximum Feedwater SDI (15 mins): 5.0
Maximum Feed Flow: 75 GPM (17.0 m³/h)
Minimum Ratio of Concentrate to
Permeate Flow for any Element: 5:1
Maximum Pressure Drop for Each Element: 10 psi

Applications

Low salinity surface or ground water with high molecular weight organics or pesticides

Docs

Hydranautics NANO-BW Membrane Data Sheet

Hydranautics HYDRACoRe50-LD Membrane

aqua@2025 — Thu, 13 Mar 2025 12:39:12 +0000

Hydranautics’ HYDRACoRe (Hydranautics Color Removal) membranes are sulfonated polyethersulfone-based spiral-wound, crossflow elements that can be used for potable water as well as industrial applications in which color reduction with minimal removal of dissolved salts is desired. The key advantage of the HYDRACoRe®technology is the membranes’ superior chlorine-tolerance ( up to 100 ppm chlorine during short term cleansing)

These are HYDRACoRe10 and HYDRACoRe50 membranes made as a traditional RO style fiber glass element with a low fouling brine spacer used to treat industrial, food and beverage and municipal feed waters. These come in 4 inch and 8 inch diameter sizes.

Models

HYDRACoRe50-LD Specifications:

Configuration: Spiral wound with FRP hard shell
Membrane Polymer: Sulfonated Polyethersulfone
Molecular Weight Cut-off Hydracore10: 3000 Dalton
Molecular Weight Cut-off Hydracore50: 1000 Dalton

Model	Feed Spacer inch (cm)	Area, ft² (m²)	Permeate Flow	NaCl Rejection			Test Pressure
Model	Feed Spacer inch (cm)	Area, ft² (m²)	GPD (m³/d)	Average	Min	Max	PSI (MPa)
HYDRACoRe10-LD	0.034 (0.086)	400 (37)	16,200 (61.3)	20%	5%	25%	50 (0.34)
HYDRACoRe50-LD	0.034 (0.086)	400 (37)	17,200 (65.1)	50%	40%	60%	140 (0.97)

The stated performance is initial (data taken after 30 minutes of operation), based on the following conditions:

2000 ppm NaCl solution
20% Permeate Recovery
6.5 – 7.0 pH Range
77 °F (25 °C) Operating Temperature

Features

Standard Operating Limits:

Maximum Applied Pressure: 600 psig (4.16 MPa)
Maximum Continuous Chlorine Concentration1: 10 PPM
Maximum Chlorine Concentration for Cleaning1: 100 PPM
Maximum Operating Temperature: 113 °F (45°C)
Operating pH Range: 2-11
Cleaning pH Range: 1-12(For cleaning temperatures 35°C)
Maximum Feedwater Turbidity: 1.0 NTU
Maximum Feedwater SDI (15 mins): 5.0
Maximum Pressure Drop per element: 10 psi

Applications

Removal of color and large molecular weight organics from feedwater.
Industrial, food and beverage, and municipal feedwaters.

Docs

Hydranautics HydraCoRe50-LD Membrane Data Sheet

Hydranautics HYDRACoRe10-LD Membrane

aqua@2025 — Thu, 13 Mar 2025 12:39:10 +0000

Hydranautics’ HYDRACoRe (Hydranautics Color Removal) membranes are sulfonated polyethersulfone-based spiral-wound, crossflow elements that can be used for potable water as well as industrial applications in which color reduction with minimal removal of dissolved salts is desired. The key advantage of the HYDRACoRe® technology is the membranes’ superior chlorine-tolerance ( up to 100 ppm chlorine during short term cleansing)

Models

HYDRACoRe10-LD Specifications:

Configuration: Spiral wound with FRP hard shell
Membrane Polymer: Sulfonated Polyethersulfone
Molecular Weight Cut-off Hydracore10: 3000 Dalton
Molecular Weight Cut-off Hydracore50: 1000 Dalton

Model	Feed Spacer inch (cm)	Area, ft² (m²)	Permeate Flow	NaCl Rejection			Test Pressure
Model	Feed Spacer inch (cm)	Area, ft² (m²)	GPD (m³/d)	Average	Min	Max	PSI (MPa)
HYDRACoRe10-LD	0.034 (0.086)	400 (37)	16,200 (61.3)	20%	5%	25%	50 (0.34)
HYDRACoRe50-LD	0.034 (0.086)	400 (37)	17,200 (65.1)	50%	40%	60%	140 (0.97)

The stated performance is initial (data taken after 30 minutes of operation), based on the following conditions:

2000 ppm NaCl solution
20% Permeate Recovery
6.5 – 7.0 pH Range
77 °F (25 °C) Operating Temperature

Features

Standard Operating Limits:

Maximum Applied Pressure: 600 psig (4.16 MPa)
Maximum Continuous Chlorine Concentration1: 10 PPM
Maximum Chlorine Concentration for Cleaning1: 100 PPM
Maximum Operating Temperature: 113 °F (45°C)
Operating pH Range: 2-11
Cleaning pH Range: 1-12(For cleaning temperatures 35°C)
Maximum Feedwater Turbidity: 1.0 NTU
Maximum Feedwater SDI (15 mins): 5.0
Maximum Pressure Drop per element: 10 psi

Applications

Removal of color and large molecular weight organics from feedwater.
Industrial, food and beverage, and municipal feedwaters.

Docs

Hydranautics HydraCoRe10-LD Membrane Data Sheet

Hydranautics ESNA1-LF2-LD Membrane

aqua@2025 — Thu, 13 Mar 2025 12:36:46 +0000

ESNA1-LF2-LD are designed to provide high rejection of natural organic materials and moderate rejection of total hardness, while running below 100 psi, offering energy and cost savings. They provide 50%-90% salt rejection with ultra-low-pressure operations, increased energy savings, and significantly lower installation and operating costs. ESNA1-LF2-LD are high performance nanofiltration membranes ideal for softening applications and the removal of pesticides, bacteria or viruses.

Models

ESNA1-LF2-LD Specidications:

Permeate Flow: 10,500gpd (39.7m³/d)
CaCl₂ Rejection: 86%
CaCl₂ Rejection (minimum/maximum): 83%/94%

*Expected calcium rejection for a typical 500 ppm well water is 93% at 13gfd operating flux and 25°C.

Type Configuration: Low Fouling Spiral Wound
Membrane Polymer: Composite Polyamide
Membrane Active Area: 400ft² (37.1m²)
Feed Spacer: 34 mil (0.864 mm) with biostatic agent

The stated performance is initial (data taken after 30 minutes of operation), based on the following conditions:

500 ppm CaCl₂
75 psi (0.52 MPa) Applied Pressure
77°F (25°C) Operating Temperature
15% Permeate Recovery
6.5 – 7.0 Feed pH

Features

Standard Operating Limits:

Maximum Applied Pressure: 600 psig (4.16 MPa)
Maximum Chlorine Concentration: < 0.1 PPM
Maximum Operating Temperature: 113°F (45°C)
pH Range, Continuous (Cleaning): 2-10 (1-12)*
Maximum Feedwater Turbidity: 1.0 NTU
Maximum Feedwater SDI (15 mins): 4.0
Maximum Feed Flow: 75 GPM (17.0 m³/h)
Minimum Ratio of Concentrate to Permeate Flow for any Element: 5:1
Maximum Pressure Drop for Each Element: 10 psi

*The limitations shown here are for general use. For specific projects, operating at more conservative values may ensure the best performance and longest life of the membrane. See Hydranautics Technical Bulletins for more detail on operation limits, cleaning pH, and cleaning temperatures

Applications

Municipal Water Treatment

Docs

Hydranautics ESNA1-LF2-LD Membrane

Hydranautics ESNA1-LF-LD Membrane

aqua@2025 — Thu, 13 Mar 2025 12:36:46 +0000

ESNA1-LF are high performance nanofiltration membranes ideal for softening applications and the removal of pesticides, bacteria or viruses. They provide 50%-90% salt rejection with ultra-low-pressure operations, increased energy savings, and significantly lower installation and operating costs.

Models

ESNA1-LF Specifications

Permeate Flow: 8,200 gpd (31.0 m³/d)
CaCl₂ Rejection: 89%
CaCl₂ Rejection (minimum/maximum): 86%/95%

*Expected calcium rejection for a typical 500 ppm well water is 96% at 13 gfd operating flux and 25°C.

Configuration: Low Fouling Spiral Wound
Membrane Polymer: Composite Polyamide
Membrane Active Area: 400ft² (37.1m²)
Feed Spacer: 34 mil (0.864 mm) with biostatic agent

The stated performance is initial (data taken after 30 minutes of operation), based on the following conditions:

500 ppm CaCl₂
75psi (0.52 MPa) Applied Pressure
77°F (25°C) Operating Temperature
15% Permeate Recovery
6.5 – 7.0 Feed pH

Features

Standard Operating Limits:

Maximum Applied Pressure: 600 psig (4.16 MPa)
Maximum Chlorine Concentration: < 0.1 PPM
Maximum Operating Temperature: 113°F (45°C)
pH Range, Continuous (Cleaning): 2-10 (1-12)
Maximum Feedwater Turbidity: 1.0 NTU
Maximum Feedwater SDI (15 mins): 5.0
Maximum Feed Flow: 75 GPM (17.0 m³/h)
Minimum Ratio of Concentrate to Permeate Flow for any Element: 5:1
Maximum Pressure Drop for Each Element: 10 psi

The limitations shown here are for general use. For specific projects, operating at more conservative values may ensure the best performance and longest life of the membrane. See Hydranautics Technical Bulletins for more detail on operation limits, cleaning pH, and cleaning temperatures.

Applications

Municipal Water Treatment

Docs

Hydranautics ESNA1-LF-LD Membrane