HP4750 Stirred Cell
Assembly and Operation Manual

Sterlitech Corporation | HP4750 Assembly and Operation Manual 1
Contents
Introduction ……………………………………………………………………………………………………………….. 2
Before Assembly ………………………………………………………………………………………………………… 2
Stirred Cell Assembly ………………………………………………………………………………………………….. 3
HP4750 Stirred Cell Operating Parameters …………………………………………………………………….. 6
Operation of the HP4750 Stirred Cell …………………………………………………………………………….. 7
HP4750 Example System Configuration ………………………………………………………………………… 9
Accessory and Spare Part Ordering Information ……………………………………………………………..10
O-ring Chemical Compatibility ………………………………………………………………………………………11
Return Material Order Procedure ………………………………………………………………………………….12
Warranty …………………………………………………………………………………………………………………..12
Appendix 1: Swagelok Connections ………………………………………………………………………………13
Appendix 2: Membrane Cutting and Conditioning ……………………………………………………………14
Appendix 3: Preconditioning Membrane Disc Filters ………………………………………………………..15
Appendix 4: HP4750 Bibliography …………………………………………………………………………………16
Appendix 5: List of Sterlitech Flat Sheet Membranes ……………………………………………………….17
2 HP4750 Assembly and Operation Manual | Sterlitech Corporation
Introduction
The HP4750 Stirred Cell is a high-pressure, chemically resistant stirred cell that performs a wide variety of membrane separations. With a maximum pressure rating of 1000 psig (69 bar), the HP4750 Stirred Cell is ideally suited for reverse osmosis (RO) filtration, nanofiltration (NF), ultrafiltration (UF), and microfiltration (MF) separations. Stainless steel (316L) construction and chemically resistant components make the HP4750 Stirred Cell an ideal choice to filter aqueous and non-aqueous solutions.
The Sterlitech HP4750 Stirred Cell is designed and manufactured to provide many years of trouble-free operation. This instruction manual describes the functions, features, configuration, start-up, and operation of the HP4750 Stirred Cell.
Before Assembly
Verify that the stirred cell was shipped complete, intact, and undamaged. The complete set of stirred cell parts is found in Figure 1 below.
1. Stainless steel cell body
2. Cell Top
3. Cell bottom
4. Cell top coupling
5. Cell bottom coupling
6. Porous stainless steel membrane support disk
7. 2 O-rings
8. Top Gasket
9. Permeate Tube
10. Stir bar assembly
11. Stir bar retriever
Figure 1: HP4750 Components
Sterlitech Corporation | HP4750 Assembly and Operation Manual 3
Stirred Cell Assembly
After verifying that all of the necessary components were shipped and present, you can begin the assembly of the stirred cell.
1. Wet the O-rings with a small amount of water or the fluid to be processed.
Note: HP4750 Stirred Cells are shipped with Buna-N O-rings and gaskets by default; other materials such as Viton and PTFE are available as options. Table 2 on page 10 outlines O-ring and gasket material compatibility.
Photo 1: Outer Ring Insertion
2. Insert the O-rings in the bottom of the cell body. (Photo 1 & 2) Check to be certain that the O-rings fit properly in the grooves.
Photo 2: Inner Ring Insertion
3. Place a piece of precut membrane over the center O-ring. The membrane should be installed with the active side toward the cell reservoir. In general, membranes coated on substrate have a shiny, active side and a dull, substrate side. (Photo 3)
Photo 3: Membrane Filter Insertion
4. Place the stainless steel porous membrane support disk on top of the membrane to hold the membrane in place. (Photo 4)
Note: If you cut your own membranes, the stainless steel porous disk can be used as a template. See Appendix 2 on page 14 for more details.
Photo 4: Membrane Support Disk Insertion
4 HP4750 Assembly and Operation Manual | Sterlitech Corporation
5. Fit the cell bottom onto the cell body, aligning the circular groove with the circular ridge on the bottom of the cell body. (Photo 5)
Photo 5: Cell Bottom Assembly
6. Use the 3-inch high pressure coupling to clamp the cell bottom to the cell body. Tighten the high pressure coupling with 16 foot pounds of torque for 1000 psig (69 bar) operation. (Photo 6)
Photo 6: Bottom Clamp Assembly
7. Insert Permeate Tube into side of cell body, tighten using a wrench. (Photo 7)
Note: The HP4750 uses Swagelok connection fittings. More detailed instructions, information and images of the fittings can be found in Appendix 1 on page 13.
Photo 7: Permeate Tube Installation
8. Insert the Stir bar assembly by dropping it into the Cell Body through the 2-inch-diameter opening at the top (Photo 8a). Alternatively, the stir bar assembly can be lowered into the cell with the stir bar retriever (Photo 8b). Figure 2 shows the correct position of the Stir Bar Assembly. After the assembly is in place, pour the solution to be filtered into the Cell Body.
Photo 8a: Stir Bar Insertion
Sterlitech Corporation | HP4750 Assembly and Operation Manual 5
Figure 2: Proper Stir Bar Position
Photo 8b: Stir bar Insertion with stir bar retriever
9. Insert the gasket on the top of the Cell Body, making sure it fits properly in the grooves. (Photo 9)
Photo 9: Gasket Installation
10. Use the 2-inch high pressure coupling to clamp the cell top to the cell body. Tighten the high pressure coupling with 16 foot pounds of torque for 1000 psig (69 bar) operation. (Photo 11) After both clamps are properly attached, the HP4750 Stirred Cell should be centered on top of a magnetic stirrer.
Photo 10: Cell Top Attachment
Photo 11: Cell Top Clamp
6 HP4750 Assembly and Operation Manual | Sterlitech Corporation
HP4750 Stirred Cell Operating Parameters
The HP4750 Stirred Cell is activated by compressed air or inert gas pressure source. Any 47-50 mm diameter membrane disk can be used with the stirred cell, which provides excellent versatility. Before operating the HP4750, please review the operating parameters in Table 1.
Table 1: HP4750 Stirred Cell Operating Parameters
Parameter
Description
Membrane Size:
47-49 mm diameter (1.93 inches)
Active Membrane Area:
14.6 cm2 (2.26 in2)
Processing Volume:
300 mL
Hold-Up Volume:
1 mL
Maximum Pressure:
69 bar (1000 psig)
Maximum Temperature:
121 °C (250 °F) at 55 bars (800 psig)
PH Range:
Membrane dependent
Connections:
Permeate Outlet:
1/8-inch diameter 316L SS tubing
Pressure Inlet:
¼ inch FNPT
Wetted Materials of Construction
Cell Body:
316L Stainless Steel
O-rings:
Buna-N, others available as options
Gaskets:
Buna-N, others available as options
Stir Bar:
PTFE-coated magnet
Dimensions:
Cell Diameter:
5.1 cm (2.0 inches)
Cell Height:
22.4 cm (10.0 inches)
Autoclavable
Yes
Sterlitech Corporation | HP4750 Assembly and Operation Manual 7
Operation of the HP4750 Stirred Cell
1. Attach a high pressure hose (sold separay, Sterlitech Part Number: 1151427) to the fitting on the Cell Top. (Photo 12)
Photo 12: High Pressure Hose Attachment
2. Connect the other end of the hose to the pressure regulator assembly on the inert gas supply or the compressed air supply. The compressed air or inert gas source selected will determine pressure regulator (sold separay, Sterlitech Part Number: 1144026) style and pressure requirements. (Photo 13)
Photo 13: Pressure Regulator Connection
3. Place a Permeate Collection Vessel (user-supplied) under the Permeate Tube. (Photo 14)
Photo 14: Permeate Collection Vessel
4. Turn on the magnetic stirrer (sold separay, Sterlitech Part Number 1144030 or 1144031) to start the motion of the Stir Bar Assembly. (Photo 15)
Photo 15: Magnetic Stirrer
5. Begin filtration by gradually pressurizing the HP4750 Stirred Cell, checking for leaks. Foreign material on the surface of the seals and insufficient tightening of the clamps are most common causes for leakage.
Note: Preconditioning the membranes before use will ensure consistent performance. See Appendix 3 on page 15 for more details.
8 HP4750 Assembly and Operation Manual | Sterlitech Corporation
6. Upon completion of filtration, turn off the pressure source and depressurize the unit by the pressure relief valve (sold separay, Sterlitech Part Number: 1155893). (Photo 16)
Caution: Do not depressurize the HP4750 Stirred Cell by loosening the couplings.
Photo 16: Pressure Relief Valve
7. Once it is depressurized and empty, the HP4750 Stirred Cell can be cleaned with a variety of cleaners, including detergents, solvents, caustic, acid, enzyme cleaners, etc.
Note: Choice of the appropriate cleaning regime should also consider the compatibility of the gasket and O-ring material. A section of O-ring chemical compatibilities is presented on page 11.
Sterlitech Corporation | HP4750 Assembly and Operation Manual 9
HP4750 Example System Configuration
Figure 3 illustrates the typical configuration of a standard HP4750 Stirred Cell System. The drawing shows the three major components of the system: the Cell Body with removable top and bottom, Stir Bar Assembly, and Standard Coupling.
Figure 3: HP4750 Stirred Cell System Schematic
10 HP4750 Assembly and Operation Manual | Sterlitech Corporation
Accessory and Spare Part Ordering Information
Accessories and spare parts for the HP4750 can be ordered by calling Sterlitech Corporation at 1-877-544-4420 or by visiting
Table 2: Accessory and Spare Part Ordering Information
Product
Shipping Weight kg (lb)
Ordering Number
HP4750 Stirred Cell, for operation to 69 bar (1000 psig)
3.8 (8)
HP4750
Accessories
Pressure Regulator Assembly, 6.9-69 bar (100-1000 psig)
2.3 (5)
1144026
Pressure Relief Valve, 69 bar (1000 psig)
0.1 (0.25)
1155893
High Pressure Hose, 183 cm (72 inch)
0.7 (1.5)
1151427
PTFE O-ring/Gasket Kit
0.5 (0.1)
1144028
Viton O-ring/Gasket Kit
0.5 (0.1)
1144029
PTFE Encapsulated Viton O-ring/Gasket Kit
0.5 (0.1)
1144027
Buna O-ring/Gasket Kit
0.5 (0.1)
1144034
EPDM O-ring Gasket Kit
0.5 (0.1)
1144036
Magnetic Stirring Plate
115 VAC 60 Hz
2.3 (5)
1144030
230 VAC 50 Hz
2.3 (5)
1144031
Spare Parts
Cell Top
0.1 (0.25)
1143891
Cell Body
1.4 (3)
1149782
Cell Bottom
1.4 (3)
1143073
Porous Support Disk
0.1 (0.25)
1114910
Stir Bar Assembly
0.1 (0.25)
1143109
Membrane Packs
Visit  for membrane ordering information.
Sterlitech Corporation | HP4750 Assembly and Operation Manual 11
O-ring Chemical Compatibility
The following O-ring and gasket compatibility chart (Table 4) is provided as an aid in selecting a specific synthetic rubber compound for a particular application situation. Operating conditions and environment must also be considered in determining the media suitability.
For recommendations regarding fluids not listed, consult Sterlitech. The recommendations represent compatibility of materials only and do not necessarily constitute a recommendation for use in a specific application.
Table 3: O-ring Chemical Compatibility Chart
Code
Compound
Temperature Range
BN
Buna-N
-40 to 120 °C (-40 to 250 °F)
EP
Ethylene-Propylene
-50 to 150 °C (-65 to 300 °F)
V
Viton
-30 to 205 °C (-20 to 400 °F)
Media (Liquid or Gas)
Code
Media (Liquid or Gas)
Code
Acetic Acid, Glacial
EP
Glycols
EP
Acetone
EP
Grease and Oils
BN
Aluminum Salts
BN
Hydrazine
EP
Ammonium Hydroxide
EP
Hydrochloric Acid
EP
Ammonium Salts
BN
Hydrofluoric Acid
EP
Amyl Alcohol
EP
Hydrogen Peroxide
V
Aniline Dyes
EP
Kerosene
BN
Aromatic Fuel – 50%
V
Linseed Oil
BN
Benzene
V
Methyl Ethyl Ketone
EP
Bleach Liquor
EP
Mineral Oils
BN
Butanol (Butyl Alcohol)
BN
Naphthas
V
Butyl Cellosolve
EP
N-Hexane
BN
Carbon Disulfide
V
Octyl Alcohol
EP
Carbon Tetrachloride
V
Organic Ester
EP
Cellosolve
EP
Peanut Oil
BN
Chlorinated Solvents
V
Phenol
V
Crude Oil
V
Pyridine Oil
EP
Cutting Oil
V
Sewage
BN
Decane
BN
Sodium Acetate
EP
Denatured Alcohol
BN
Sodium Chloride
BN
Detergent, Water Solution
BN
Stoddard Solvent
BN
Diesel Oil
BN
Sulfuric Acid
V
Diethylene Glycol
EP
Tannic Acid
BN
Dry Cleaning Fluids
V
Tertiary Butyl Alcohol
V
Ethyl Alcohol
BN
Titanium Tetrachloride
V
Ethyl Hexanol
BN
Transmission Fluid
BN
Ethylene Glycol
EP
Trioctyle Phosphate
EP
Fatty Acids
V
Varnish
V
Fatty Oil
BN
Water (Demineralized)
BN
12 HP4750 Assembly and Operation Manual | Sterlitech Corporation
Return Material Order Procedure
If materials are to be returned to Sterlitech for repair, evaluation, or warranty consideration, a Return Material Authorization (RMA) number must be obtained from Sterlitech prior to the return. Contact Sterlitech’s Customer Service Department for these forms.
Be sure to include a complete, detailed written reason for the return. Also, include serial numbers, installation and removal dates, and any other pertinent information that is available. HP4750 Stirred Cells have a serial number imprinted on the cell body.
Indicate the proposed disposition of the material, and reference the RMA number on all packages or cartons. All material must be shipped to Sterlitech with freight prepared by the customer.
Warranty
The following is made in lieu of all other warranties expressed or implied. Sterlitech Corporation guarantees equipment to be free from defects in material and workmanship when operated in accordance with written instructions for a period of one year from receipt. Parts not manufactured by Sterlitech are covered by their manufacturer’s warranties, which are normally for one year.
Manufacturers and Seller’s only obligation shall be to issue credit against the purchase or replacement of equipment proved to be defective in material or workmanship. Neither manufacturer nor seller shall be liable for any injury, loss or damage, direct or indirect, special or consequential, arising out of the use of, misuse, or the inability to use such product.
The information contained herein is based on technical data and tests, which we believe to be reliable, and is intended for use by persons having technical skill at their discretion and risk. Since conditions of use are outside Sterlitech’s control, we can assume no liability whatsoever for results obtained or damages incurred through the application of the data presented.
This information is not intended as a license to operate under, or a recommendation to infringe upon, any patent of Sterlitech or others covering any material or use.
The foregoing may not be altered except by a written agreement signed by officers of the manufacturer.
Technical Assistance:
Please contact us if you have any questions or technical inquires about our products.
Sterlitech Corporation | HP4750 Assembly and Operation Manual 13
Appendix 1: Swagelok Connections
To install Swagelok Tube Fittings:
1. Insert the tubing into the Swagelok tube fitting. Make sure that the tubing rests firmly on the shoulder of the fitting and that the nut is finger-tight.
2. Scribe the nut at the 6 o’clock position. By scribing the nut at the 6 o’clock position as it appears to you, there will be no doubt as to the starting position.
3. Hold the fitting body steady with a backup wrench and tighten the nut 1¼ turns. Watch the scribe mark, make one complete revolution and continue to the 9 o’clock position. When the nut is tightened to the 9 o’clock, you can easily see the fitting has been tightened properly.
Swagelok connections can be disconnected and retightened many times.
To retighten the Swagelok connection:
1. Start with the disconnected fitting.
2. Insert tubing with preswaged ferrules into fitting body until front ferrule seats.
3. Tighten the nut by hand. Rotate nut to the original position with a wrench. An increase in resistance will be encountered at the original position. Then tighten slightly with the wrench.
14 HP4750 Assembly and Operation Manual | Sterlitech Corporation
Appendix 2: Membrane Cutting and Conditioning
Sterlitech offers a wide variety membranes that have been pre-cut for use with the HP4750. However, if you need cut your own membrane for use with the HP4750 Stirred Cell, You will need the following items:
? The porous stainless steel support disk, which will serve as the template
? The membrane sheet to be cut
? A pair of sharp scissors
? A pair of latex gloves
To cut a membrane disk filter for the HP4750:
1. Take the porous stainless support disk and place the membrane sheet against it. Be sure to have the latex gloves on to avoid contaminating the membrane surface.
Photo 17: Membrane Cutting
2. Cut along the edge of the template with the scissors. Hold the scissors at an angle towards the center of the template to avoid under-trimming.
Once finished, the membrane should sit perfectly flat on supports without any bending and extend outside of the inner O-ring to avoid leakage.
Photo 18: Membrane Fitting
Sterlitech Corporation | HP4750 Assembly and Operation Manual 15
Appendix 3: Preconditioning Membrane Disc Filters
Once the membrane is cut and fitted, it needs to be pre-conditioned. Membranes that are not pre-conditioned may have different behaviors and fluxes, which will give inconsistent results. Figure 4 below illustrates the instability of the flux, particularly at the start of the trial, through unconditioned membranes.
Figure 4: Example of Performance Variance Using Unconditioned Membranes
To precondition the membrane:
1. Load the membrane into the HP4750 Stirred Cell
2. Fill the stirred cell with deionized water and pressurize the cell. The temperature of the water and the pressure used should be exactly the same as the temperature and pressure that will be used in the actual trials.
3. Run the deionized water through the cell for two hours. After about 30 minutes, flux through the membrane will stabilize after a sharp fall. Over the next 90 minutes, the flux should be steady, indicating that the membrane is conditioned (see Figure 5 below).
Figure 5: Stabilizing Flux with Preconditioning
4. Release pressure, discard the deionized water and fill the cell with your sample.
16 HP4750 Assembly and Operation Manual | Sterlitech Corporation
Appendix 4: HP4750 Bibliography
The following studies utilized the HP4750 Stirred Cell in their method and are listed here to illustrate the potential applications for the HP4750. These studies are good references for understanding the operation of the HP4750 Stirred Cell.
Title
Abstract
Full Citation
Modeling of the retention of atrazine and dimethoate with nanofiltration
The HP4750 stirred cell was used to test which nanofiltration membrane (NF90, NF200, NF270, and DK) worked best at removing pesticides from water.
A.L. Ahmad, L.S. Tan, S.R. Abd. Shukor. Modeling of the retention of atrazine and dimethoate with nanofiltration. Chemical Engineering Journal, Volume 147, Issues 2–3, 15 April 2009, Pages 280–286.
Effects of palm oil-based fatty acids on fouling of ultrafiltration membranes during the clarification of glycerin-rich solution
In this study, the HP4750 cell was used to examine the membrane-binding properties fatty acids with polyethersulfone (PES) and polyvinylidenefluoride (PVDF) ultrafiltration membranes.
Indok Nurul Hasyimah Mohd Amin, Abdul Wahab Mohammad, Mastura Markom, Leo Choe Peng. Effects of palm oil-based fatty acids on fouling of ultrafiltration membranes during the clarification of glycerin-rich solution. Journal of Food Engineering, Volume 101, Issue 3, December 2010, Pages 264–272.
Preparation and characterization of a neutrally charged antifouling nanofiltration membrane by coating a layer of sulfonated poly(ether ether ketone) on a positively charged nanofiltration membrane
The HP4750 stirred cell was used to test the antifouling and separation capability of a specially prepared, electrically neutral nanofiltration membrane.
Chaoyi Ba, James Economy. Preparation and characterization of a neutrally charged antifouling nanofiltration membrane by coating a layer of sulfonated poly (ether ether ketone) on a positively charged nanofiltration membrane. Journal of Membrane Science, Volume 362, Issues 1–2, 15 October 2010, Pages 192–201.
Synthesis and characterization of a carbon nanotube/polymer nanocomposite membrane for water treatment
The HP4750 was used to characterize the separation properties of carbon composite membrane at 2.9, 3.9 and 4.9 MPa.
Hosam A. Shawky, So-Ryong Chae, Shihong Lin, Mark R. Wiesner. Synthesis and characterization of a carbon nanotube/polymer nanocomposite membrane for water treatment. Desalination, Volume 272, Issues 1–3, 3 May 2011, Pages 46–50.
Sterlitech Corporation | HP4750 Assembly and Operation Manual 17
Appendix 5: List of Sterlitech Flat Sheet Membranes
Reverse Osmosis (RO) Membranes*
Designation
(P/N)
Brand
Polymer
Molecular Weight Cut-off (MWCO)
Rej-Size (NaCl)
25C pH Range
Typical
Flux/psi
GFD@
PSI
AD
GE Osmonics
Polyamide
0 MWCO
99.5
1-11
15/800
(YMADSP1905)
AG
GE Osmonics
Polyamide
0 MWCO
99.5
1-11
26/225
(YMAGSP1905)
AK
GE Osmonics
Polyamide
0 MWCO
99
1-11
26/115
(YMAGSP1905)
CE
GE Osmonics
Cellulose Acetate
0 MWCO
97
1-11
23.5/420
(YMCE1905)
SE
GE Osmonics
TF (Thin Film)
0 MWCO
98.9
1-11
22/425
(YMSESP1905)
SG
GE Osmonics
TF (Thin Film)
0 MWCO
98.2
1-11
22/225
(YMSGSP1905)
ACM1
TriSep
Polyamide
0 MWCO
99.5
2-11
25/225
(YMACM11905)
ACM2
TriSep
Polyamide
0 MWCO
99.5
2-11
30/225
(YMACM21905)
ACM3
TriSep
Polyamide
0 MWCO
99.3
2-11
35/225
(YMACM31905)
ACM4
TriSep
Polyamide
0 MWCO
99.2
2-11
30/150
(YMACM41905)
ACM5
TriSep
Polyamide
0 MWCO
98.5
2-11
30/110
(YMACM51905)
SB50
TriSep
Cellulose Acetate Blend
0 MWCO
95.0
4-7
30/420
(YMSB501905)
(99.0 – MgSO4)
X201
TriSep
Polyamide-urea
0 MWCO
99.5
2-11
30/225
(YMX2011905)
70B
Toray
Polyamide
0 MWCO
99.7
2-11
27/225
(YM70BSP195)
70UB
Toray
Polyamide
0 MWCO
99.5
2-11
27/110
(YM70UBSP195)
80E
Toray
Polyamide
0 MWCO
99.8
2-11
16/800
(YM80ESP195)
80LB
Toray
Polyamide
0 MWCO
99.7
2-11
22/800
(YM80LBSP195)
SW30HR
Dow
Polyamide
~100 MWCO
99.6
2-11
17-24/800
(YMSW30HR1905)
18 HP4750 Assembly and Operation Manual | Sterlitech Corporation
SW30XLE
Dow
Polyamide
~100 MWCO
99.5
2-11
23-29/800
(YMSW30XLE1905)
BW30
Dow
Polyamide
~100 MWCO
99.5
2-11
26/255
(YMBW301905)
BW30LE
Dow
Polyamide
~100 MWCO
99.5
2-11
37-46/225
(YMBW30LE1905)
BW30FR
Dow
Polyamide
~100 MWCO
99.5
2-11
26/255
(YMBW30FR1905)
XLE
Dow
Polyamide
~100 MWCO
98.7
2-11
33-41/125
(YMXLE1905)
Nanofiltration (NF) Membranes*
Designation
(SKU)
Brand
Polymer
Molecular Weight Cut-off (MWCO)
Rej-Size (NaCl)
25C pH Range
Typical
Flux/psi
GFD@
PSI
CK
GE Osmonics
Cellulose Acetate
2000 MWCO
92% -Na2SO4
2-8
28/220
(YMCKSP1905)
DK
GE Osmonics
TF (Thin Film)
150-300 MWCO
98% -MgSO4
2-10
22/100
(YMDKSP1905)
DL
GE Osmonics
TF (Thin Film)
150-300 MWCO
96% -MgSO4
2-10
31/100
(YMDLSP1905)
HL
GE Osmonics
TF (Thin Film)
150-300 MWCO
95% -MgSO4
3-9
39/100
(YMHLSP1905)
TS40
TriSep
Polypiperazine amide
200 MWCO
40-60%
2-11
20/110
(YMTS401905)
(99.0%- MgSO4)
TS82
TriSep
Polyamide
150 MWCO
80-90%
2-11
20/110
(YMTS821905)
(99.0% MgSO4)
SB90
TriSep
Cellulose acetate blend
150 MWCO
85.00%
30/225
(YMSB901905)
(97.0% MgSO4)
XN45
TriSep
Polypiperazine amide
500 MWCO
30-Oct
2-11
35/110
(YMXN451905)
(95.0 – MgSO4)
NF
Dow
Polyamide
~200-400 MWCO
99-MgSO4
2-11
26.5-39.5/130
(YMNF1905)
NF245
Dow
Polyamide
~200-400 MWCO
99-MgSO4
2-11
52-72/130
(YMNF2451905)
NF270
Dow
Polyamide
~200-400 MWCO
99.2-MgSO4
2-11
72-98/130
(YMNF2701905)
NF90
Dow
Polyamide
~200-400 MWCO
2-11
46-60/125
(YMNF901905)
NFX
(YMNFX1905)
Synder
Polyamide TFC
150-300 MWCO
40%
3-10.5
20-25/110
99% MgSO4
NFW
(YMNFW1905)
Synder
Polyamide TFC
300-500 MWCO
20%
4-10
45-50/110
97% MgSO4
Sterlitech Corporation | HP4750 Assembly and Operation Manual 19
NFG
(YMNFG1905)
Synder
Polyamide TFC
0.2 micron
10%
4-10
55-60/110
50% MgSO4
Ultrafiltration (UF) Membranes*
Designation
(SKU)
Brand
Polymer
Molecular Weight Cut-off (MWCO)
Rej-Size
25C pH Range
Typical
Flux/psi
GFD@ PSI
CQ
GE Osmonics
Cellulose Acetate
20000 MWCO
20 K
2-9
300/50
(YMCQSP1905)
GE
GE Osmonics
TF (Thin Film)
1000 MWCO
1K-PEG
1-11
20/400
(YMGESP1905)
GH
GE Osmonics
TF (Thin Film)
2000 MWCO
2K-PEG
1-11
20/150
(YMGHSP1905)
GK
GE Osmonics
TF (Thin Film)
3000 MWCO
3K-PEG
1-11
17/75
(YMGKSP1905)
PT
GE Osmonics
PES
5000 MWCO
5K-Dextran
1-11
90/50
(YMPTSP1905)
PW
GE Osmonics
PES
10000 MWCO
10K-Dextran
1-11
85/30
(YMPWSP1905)
MW
GE Osmonics
Ultrafilic
100000 MWCO
50K-Protein
2-9
176/20
(YMMWSP1905)
UA60
TriSep
Polypiperazine amide
3500 MWCO
70.0%- MgSO4
2-11
35/110
(YMUA601905)
UE10
TriSep
PES
10000 MWCO
2-11
50/20
(YMUE101905)
UE50
TriSep
PES
100000 MWCO
2-11
100/20
(YMUE501905)
XT
(YMXT1905)
Synder
PES
1000 MWCO
1000 Da
1-11
75 -80/50
VT
(YMVT1905)
Synder
PES
3000 MWCO
3000 Da
1-11
110-127/50
MT
(YMMT1905)
Synder
PES
5000 MWCO
5000 Da
1-11
120-147/50
ST
(YMST1905)
Synder
PES
10000 MWCO
10000 Da
1-11
130-167/50
MK
(YMMK1905)
Synder
PES
30000 MWCO
30000 Da
1-11
181-193/50
V3
(YMV31905)
Synder
PVDF w/ + surface charge
30000 MWCO
30000 Da
1-11
192-207/50
BN
(YMBN1905)
Synder
PVDF
50000 MWCO
50000 Da
1-11
200-214/50
V4
(YMV41905)
Synder
PVDF w/ + surface charge
70000 MWCO
70000 Da
1-11
157-168/50
20 HP4750 Assembly and Operation Manual | Sterlitech Corporation
LY
(YMLY1905)
Synder
PES
100000 MWCO
100000 Da
1-11
270-289/50
BY
(YMBY1905)
Synder
PVDF
100000 MWCO
100000 Da
1-11
162-173/30
V5
(YMV51905)
Synder
PVDF w/ + surface charge
200000 MWCO
200000 Da
1-11
175-186/30
BX
(YMBX1905)
Synder
PVDF
250000 MWCO
250000 Da
1-11
181-193/30
LX
(YMLX1905)
Synder
PES
300000 MWCO
300000 Da
1-11
236-252/30
V6
(YMV61905)
Synder
PVDF w/ + surface charge
500000 MWCO
500000 Da
1-11
182-196/30
A6
(YMA61905)
Synder
PVDF
500000 MWCO
500000 Da
1-11
191-214/30
V7
(YMV71905)
Synder
PVDF w/ + surface charge
800000 MWCO
800000 Da
1-11
208-232/30
Microfiltration (MF) Membranes*
Designation
(SKU)
Brand
Polymer
Pore Size
Rej-Size
25C pH Range
Typical
Flux/psi
GFD@
PSI
JX
GE Osmonics
PVDF
0.3 micron
0.3 micron
1-11
130/30
(YMJXSP1905)
TM10
TriSep
PVDF
0.2 micron
2-11
50/10
(YMTM101905)
FR
(YMFR1905)
Synder
PVDF
800000 MWCO
800000 dalton
1-11
233-249/30
V0.1
(YMV011905)
Synder
PVDF
0.1 micron
1-11
237-254/20
V0.2
(YMV021905)
Synder
PVDF
0.2 micron
1-11
245-280/20
*This list is updated frequently. Visit  to see the latest offerings.
Founded in 2001 in Kent, WA, Sterlitech Corporation manufactures and markets filtration-focused laboratory products to a broad spectrum of scientific and industrial sectors. Its line of flat sheet membranes and tangential flow cells deliver industry-leading performance and reliable results. Configured for reverse osmosis, nanofiltration, ultrafiltration, and microfiltration applications, Sterlitech’s bench scale test equipment provides the versatility required to innovate.
Sterlitech’s comprehensive line of products is supported by the expertise of its technical specialists who can assist with application-specific product selection, and provide customized solutions where necessary. Unique problem-solving approaches, flexibility, and consistent quality have made Sterlitech Corporation a renowned global provider of filtration products and equipment.
General Corporate Information
Sterlitech Corporation
22027 70th Avenue S
Kent, WA 98032-1911 USA
877-544-4420 or 1-253-437-0844
1-253-437-0845
Sales Inquiries
Accounts Payable
Accounts Receivable
Press Inquiries
For more information call (253) 437-0844, (877) 544-4420, or visit
Sterlitech Corporation
22027 70th Ave. S
Kent, WA 98032-1911 USA
Phone: (253) 437-0844
(253) 437-0845