Product datasheet

5K Ultrafiltration Membrane
Sanitary element for dairy and food processing

Toray's 5K Ultrafiltration (TUF-series) membranes provide a molecular weight cut-off of
5,000 Daltons. TUF-series models are net-wrapped (no tail), spiral-wound elements using
a hydrophilic polyethersulfone (PES) asymmetric membrane specifically developed formaximum retention of milk and whey proteins and maximum productivity. 'HR' models
incorporate a low flux membrane with maximum retention for special applications in theproduction of dairy, gelatin, sugar, and more.

Product SpecificationsStandard dimensions in. (mm)ModelFeed spacer
thicknessin. (mm)

Active area
ft² (m²)

SizeA
Diameter

B
LengthC
Permeate tube ID

TUF5 3838N1 / TUF5 3838HRN1

0.031 (0.79)

73 (6.8)3838

3.8 (97)38 (965)

0.83 (21.1)

TUF5 3838N2 / TUF5 3838HRN2

0.046 (1.17)

57 (5.3)6338

6.3 (160)

38 (965)

1.138 (28.9)

TUF5 4336N2

0.046 (1.17)

64 (5.9)6438

6.3 (161)

38 (965)

1.138 (28.9)

TUF5 6338N1 / TUF5 6338HRN1 /TUF5 6338HRN1T*

0.031 (0.79)

233 (21.6)8038

7.9 (201)

38 (965)

1.125 (28.6)

TUF5 6338N2 / TUF5 6338HRN2 /TUF5 6338N2T*

0.046 (1.17)

176 (16.4)

TUF5 6338N3 / TUF5 6338HRN3

0.065 (1.65)

137 (12.7)

TUF5 6338HRN4

0.080 (2.03)

35 (3.3)

TUF5 6438N1 / TUF5 6438HRN1

0.031 (0.79)

233 (21.6)

TUF5 6438N2 / TUF5 6438HRN2

0.046 (1.17)

176 (16.4)

TUF5 6438N3 / TUF5 6438HRN3

0.065 (1.65)

137 (12.7)

TUF5 6438HRN4

0.080 (2.03)

35 (3.3)

TUF5 7838N20.046 (1.17)

330 (30.6)

Material Specifications

TUF5 8038N1 / TUF5 8038HRN10.031 (0.79)

360 (33.4)

Feed spacer & element outer wrap

Polypropylene

TUF5 8038N2 / TUF5 8038HRN2

0.046 (1.17)

280 (26.0)

Permeate carrier

Proprietary

TUF5 8038N3 / TUF5 8038HRN3

0.065 (1.65)

230 (21.4)

Adhesives

Proprietary

Spiral Elements in Sanitary Design (no ATD)

Components conform to FDA Regulation CFR Title 21 andUSDA/3A Sanitary StandardsFlow direction

ACB
Feed Water

Permeate

Concentrated Brine*T indicates a tail that can be trimmed
If you do not see a configuration or performance requirement that meets yourneeds, a team of product specialists is ready to develop custom engineered
solutions. Please inquire within.

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5K Ultrafiltration Membrane
Product datasheet

Applications

OPERATING LIMITS
Maximum operating pressure

140 psi (9.7 bar)

Maximum operating temperature

131°F (55°C)

Maximum cleaning temperature

122°F (50°C)

Acceptable operating pH range

2.5–10.0

Acceptable short-term cleaning pH range

Toray's TUF-series 5K membranes offer extra high retention ofproteins, fats, and polysaccharides. TUF-series 5K HR (HighRejection) membranes are ideal for maximum retention oforganic molecules for special applications in dairy production,gelatin, sugar, and more.
•Lactose free milk

1.7–11.5•

Milk protein isolate

Maximum pressure drop per element

15 psi (1.0 bar)

•White cheeses

Maximum pressure drop per vessel

60 psi (4.1 bar)

•Soft cheeses•

Whey protein concentrate (WPC 35-85)•Whey protein isolate (WPI-90)

Consult Toray for pressure limits when operating above ambient temperature

Regulatory InformationOXIDANT TOLERANCE
Chlorine tolerance (short-term cleaning at pH 11) ppm

180 ppm*

H₂O₂ continuousTolerant

H₂O₂ short-term cleaning <77°F (25°C)

Tolerant*Chlorine tolerance, continuous injection is 2 ppm; chlorinetolerance, sanitizing is 50 ppm

Toray's membrane elements are certified under:•ISO 9001:2015 QMS to ensure consistency in product andservice quality; and•ISO 14001:2015 EMS to enhance the environmental
performance of our products and services.

NOTICE1.

Elements are preserved in sodium meta-bisulfite. Appropriate personal
protective equipment should be worn when handling.

2.

Toray accepts no responsibility for results obtained by the application of thisinformation or the safety or suitability of Toray's products, either alone or incombination with other products. Users are advised to make their own tests

to determine the safety and suitability of each product combination for theirown purposes.
3.

All data may change without prior notice, due to technical modifications orproduction changes.

4.

Consult Toray for element sizes not shown.

TORAY MEMBRANE USA, INC. 13435 Danielson Street, Poway, CA 92064, U.S.A. Tel: +1 (858) 218 2360

innovation@toraymem.com

TORAY MEMBRANE EUROPE AG Grabenackerstrasse 8b, Muenchenstein 1 CH-4142, Switzerland Tel: +41-61-415-8710 info.tmeu.mb@mail.toray

www.water.toray/products/specialty

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