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  • Hydranautics ESPA4-LD HP RO Membrane Element
Hydranautics ESPA4-LD HP RO Membrane Element

Hydranautics ESPA4-LD HP RO Membrane Element

Hydranautics ESPA4-LD HP RO Membrane Element

Hydranautics ESPA4-LD HP membrane elements are favorite elements for maple sap concentration, balancing high sucrose rejection with high flux. This composite polyamide membrane provides better than 99% sucrose rejection, making it ideal for removing water from maple sap before further concentration in the evaporator step. It is provided in 8040 sizes with 34 mil feed spacer and high-pressure construction.
Hydranautics ESPA4-LD HP RO Membrane Element Data sheet

Specified Performance*

Permeate Flow:

11,000 gpd （41.6 m3/d)

Salt Rejection:

99.2% (99.0% minimum)

 

Test Conditions:    

 

500 ppm NaCl solution

 

100 psig (0.7 MPa) Applied Pressure

 

77℉ (25℃) Operating Temperature

 

15% Permeate Recovery

 

6.5 - 7.0 pH Range

*The Specified Performance is based on data taken after a minimum of 10 minutes of operation.  Actual testing of elements may be done at conditions which vary from these exact values; in which case, the performance is normalized back to these standard conditions. Permeate flow for individual elements may vary ±15 percent from the value specified.

General Product Description** 

Configuration:

Spiral Wound with FRP wrapping (high pressure construction)

Membrane Polymer:

Composite Polyamide

Membrane Active Area:

400 ft2 (37.2 m2)

Feed Spacer:

34 mil (0.86 mm)

Packaging: All membrane elements are supplied with a brine seal, interconnector, and O-rings. Elements are enclosed in a sealed polyethylene bag containing less than 1.0% sodium meta-bisulfite solution, and then packaged in a cardboard box.
Dimensions

Hydranautics ESPA4-LD HP RO Membrane Element Dimensions
Element Details**

A, inches(mm)

B, inches(mm)

C, inches(mm)

40.0 (1016)

7.89 (200)

1.125 (28.6)

Core tube extension = 1.05" (26.7 mm) 
**Values listed are indicative, not specified.
Product Use and Restrictions^

Maximum Applied Pressure

1200 psig (8.27 MPa)

Maximum Chlorine Concentration

< 0.1 ppm

Maximum Operating Temperature

113℉ (45℃)

pH Range, Continuous (Cleaning)

2-10 (1-12)

Maximum Feedwater Turbidity

1.0 NTU

Maximum Feedwater SDI (15 mins)

5.0

Maximum Feed Flow

85 gpm (19.3 m3/h)

Minimum Brine Flow

12 gpm (2.7 m3/h)

Maximum Pressure Drop for Each Element

15 psi (0.10 MPa)

^ The limitations shown here are for general use. For specified projects, operation at more conservative values may ensure the best performance and longest life of the membrane. See Hydranautics Technical Bulletins for more details.

Disclaimer: The information and data are presented in good faith and in lieu of all warranties. All express or implied warranties, including the warranties of merchantability and fitness for a particular purpose, are hereby disclaimed and excluded. Conditions and methods of use of our products are beyond our control. 
Hydranautics assumes no liability for results obtained or damages incurred through the application of the presented information and data. It is the user's responsibility to determine the appropriateness of Hydranautics' products for the user's specific end uses.

Notice:
If your customer insists existing brand, please contact Hydranautics or its distributors.
If you and your customer accept economical & quick-delivery equivalent of similar or better performance with same warranty, kindly send us an inquiry now.

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