INDUSTRIAL MEMBRANE CATALOG
Synder Industrial Catalog

---

Company Profile

OUR MISSION

Make the world’s best membrane filters to solve the separation challenges of today, and innovate the membrane technology of the future.

We are guided by these simple rules:
– WORK HARD and ENJOY the process
– INNOVATE to meet our customers’ needs
– TREAT OTHERS as you expect to be treated.
– Be RESPONSIVE
– Be HUMBLE

OUR COMPANY

Synder Filtration specializes in manufacturing Nanofiltration, Ultrafiltration, and Microfiltration membranes and systems for specialty process applications. Synder Filtration has a unique understanding of the membrane industry from its history as both a buyer and a supplier of membrane technology. Established in 1989, Synder Inc. originally focused on industrial enzyme technology, and was a pioneer in the application of spiral membranes.

Today, the company serves a variety of industries including dairy, biotech, pharmaceutical, automotive, and oil & gas. All sanitary products meet USDA, FDA and 3-A sanitary standards and Synder is a certified Halal, Kosher, and ISO-9001:2015 manufacturing company. Synder Filtration is a proud recipient of the President’s “E” Award in recognition of manufacturing export growth.

Synder has developed an extensive team of international representatives and distributors with a similar dedication to customer service and deep technical knowledge.

OUR COMMITMENT

With our deep understanding of membrane technology, industry-leading delivery times, and a highly responsive staff, we are dedicated to meeting and exceeding your expectations by doing business “the right way”, every single day.

We sincerely look forward to working with you.

Best Regards,

---

Contents

---

Membrane Technology

MOLECULAR WEIGHT CUT-OFF AND MEMBRANE SELECTION

Depending on polymer types and preparation methods, most of the polymeric membranes have a wide bell-shape pore size distribution. The concept of Molecular Weight Cut-Off (MWCO) is used as a common way to characterize the pore size distribution for porous membranes, typically for Ultrafiltration and Microfiltration membranes. MWCO is defined as that molecular weight which is 90% rejected by the membrane [1] and such value can only be used as a reference due to the facts that large pore size distribution is intrinsic to polymeric membrane and that different membrane manufacturers have their own standard of measurements. Furthermore, retention is governed not only by size and shape of the solutes, but also by the electrostatic interaction and steric hindrance as well as solute membrane affinity such as hydrogen bonding. It can also be influenced by solution chemistry and ionic strength. Therefore, membrane filtration is a trial-and-error process and pilot studies are recommended to select the best membrane for a specific application.

At Synder, Dextran (a branched, neutral charged polysaccharide) of various molecular weights is used to rate the nominal MWCO of our membranes. The unit of molecular weight (or, more correctly, mass) is Dalton [2]. From the same supplier, the membrane with higher MWCO is always more porous than the ones with lower MWCO, but these numbers should be used with caution when comparing between membranes made by different vendors as each might utilize its own qualification method. Synder is proud to have the widest MWCO selection of membranes for process optimization.

CONVENTIONAL VS. TANGENTIAL FLOW

Synder’s spiral wound membranes are designed for tangential flow (or cross flow) filtration, where the feed stream runs parallel to the membrane surface. Unlike conventional filtration where solids and solutes immediately accumulate on the membrane surface, tangential flow creates a sweeping (or shearing) force along the surface of the membrane to provide for longer filter life and less frequent cleaning cycles under normal operating conditions.

SPIRAL WOUND ELEMENT: A DISSECTION

---

Electrocoat Process

---

Synder Membrane Range

Also available in Flat Sheets

Synder Filtration offers a complete line of Nanofiltration (NF), Ultrafiltration (UF), and Microfiltration (MF) membranes in a variety of different flat sheet and membrane roll options. With sizes ranging from one square foot to thousands of linear feet, Synder can supply membrane for all scales of testing, research, and production with exceptionally fast lead times.

MODEL INFORMATION

---

Degrees of Separation

Note: 1 micrometer (micron) = 4 x 10^-5 inches = 1 x 10⁴ Angstrom units

---

Solutions with Membrane Technology

With over 20 years of application knowledge and experience, Synder Filtration is committed to creating value with membrane technology. In addition to our most common applications listed below, Synder’s process engineers have a deep understanding of how to evaluate new applications efficiently and effectively. Stocking a fleet of pilot systems for all types and sizes of pilot studies, Synder Filtration is ready to help you develop your unique process.

INDUSTRIAL APPLICATIONS

---

The Synder Difference

---

Nanofiltration Membrane Elements

---

NF Spiral-Wound Industrial Elements

CUSTOMIZATION WITH EXCEPTIONAL SPEED

Synder typically stocks the most common models for each membrane, however, elements can be customized and delivered with unparalleled lead times. For element sizes not listed, please call or e-mail Synder today with the following information to have an element made to your exact specifications:

• Element Outer Diameter (OD) or Housing Inner Diameter (ID)
• Permeate Tube Diameter
• Element Length
• Specified MWCO, if applicable.

Note: Additional feed spacers are also available. Trials should be conducted to determine optimal application conditions.

---

Ultrafiltration & Microfiltration Elements

---

UF/MF Spiral-Wound Industrial Elements

STANDARD SERIES BENEFITS

• Wide range of UF MWCO’s available
• Good pH and temperature resistance
• High resistance to fouling
• Customizable dimensions for unique housings
• V Series has a proprietary hydrophilic charge
  for improved performance
• Easy to clean with membrane cleaning chemicals
• Integrated end plugs reduce possible points of leakage

TECHNICAL NOTES

For element sizes not listed, please call or e-mail Synder Filtration for details. We can design an element to fit your exact needs – just specify the element outer diameter (OD) or vessel/housing inner diameter (ID), permeate tube inner diameter (ID), or outer diameter (OD), and length. Additional feed spacers are also available.

---

Ultrafiltration E-Coat Membranes

---

UF E-Coat Spiral-Wound Industrial Elements

TECHNICAL NOTES

For element sizes not listed, please call or e-mail Synder Filtration for details. We can design an element to fit your exact needs – just specify the element outer diameter (OD) or vessel/housing inner diameter (ID), permeate tube inner diameter (ID), or outer diameter (OD), and length. Additional feed spacers are also available.

---

TechCELL^TM

---

SuperCELL^TM

---

Ultrafiltration & Microfiltration Systems

Synder Filtration offers a complete suite of membrane products for your industrial processes. Aside from our high performance Nanofiltration, Ultrafiltration and Microfiltration spiral elements, we offer custom built industrial filtration systems which provide optimal performance for your application. This premium quality product is achieved through a collaborative effort between our engineers and customers. During the design phase of industrial & sanitary systems, Synder’s engineers and R&D staff will work with the customers to perform pilot tests and ensure optimal design, sizing, and configuration. Together, we can build a fully customized system that is truly appropriate for your application, no matter how unique it may be.

---

Nanofiltration & Reverse Osmosis Systems

NOTE: Optimum design is based on representative feed-water analyses, and Synder Filtration offers no performance guarantees, either expressed or implied, without complete knowledge of the chemical constituents in the feed stream.

---

Sanitary Systems

Synder provides custom sanitary systems, and industrial systems with sanitary weld & component requirements. Many of the components are easily removeable and disassembled for cleaning, and have low interior surface roughness. From pilot units to production scale units, Synder’s Engineering team will work closely with the customer from design to manufacturing to ensure the system meets all specifications.

---

Anode Cell Current Monitoring System

The Anode Cell CMS (Current Monitoring System) is designed to measure an individual anode cell’s amp draw and monitor the overall performance and efficiency of the anode cell over time.

CMS FEATURES AND BENEFITS

The CMS allows users to monitor the amp draw of individual TechCELLs, an indicator of TechCELL performance and condition. Monitoring TechCELL performance will assist in determining ideal configuration, and prevent product defects occurring in the paint bath. The analog model displays all amperage readings on individual analog meters on the panel while the PLC based model displays all readings on an HMI.

ANALOG CMS

The analog model (Figure 1) allows the user to monitor individual TechCELL amp draw simultaneously through analog meters mounted on the enclosure.

EASY INSTALLATION

No modification required for existing systems. The shunt sensors can be installed directly between the TechCELL and rectifier using existing quick connects.

HOW IT WORKS

Power from the rectifier passes through the shunt prior to entering the TechCELL and the resulting voltage drop across the shunt can then be measured and used to calculate amperage.

The signal from the shunt is then processed, and converted to amperage readings on the analog gauges or recorded into the PLC and displayed on the HMI.

---

EDUF Systems

Synder Filtration offers a complete suite of membrane products for the E-Coat industry. Aside from our specially designed V Series elements which are well suited for any cathodic paint bath, we offer custom built Electrodeposition Ultra Filtration systems (EDUF) which guarantee optimal performance for your paint process. This premium quality product is achieved through a collaborative effort between our engineers and customers. Synder is proud to have a majority of automotive system installations in North America.

UF SYSTEM OPERATING SPECIFICATIONS

---

Anolyte Recirculation System

Synder Filtration’s Anolyte Recirculation System offers advanced conductivity controllers, and ultrasonic level sensors to meet the needs of both automotive and industrial E-Coat applications.

---

Case Studies

---

OIL REMOVAL IN WASTEWATER TREATMENT

PX ULTRAFILTRATION MEMBRANE

---

OPTICAL BRIGHTENING AGENT (TEXTILE INDUSTRY)

NFX NANOFILTRATION MEMBRANE

---

DISSOLVED NATURAL ORGANIC MATTER RECOVERY

NFX NANOFILTRATION MEMBRANE

---

E-COAT PAINT: UF PERMEATE RECOVERY

SYNDER UF MEMBRANES

---

Feasibility Testing

In addition to performing case studies, Synder Filtration offers a wide array of feasibility testing options for our customers. With our newly designed research & development laboratory and fleet of pilot systems, we are able to conduct feasibility tests both in-house and on-site. We strive to gain a better understanding of your process goals in order to develop a comprehensive testing plan to suit your separation needs. The ultimate goal is to provide meaningful trial data toward the design, fabrication, and successful implementation of a commercial scale system.

---

Membrane Housing & Spare Parts

---

Additional UF Housing & Anolyte Spare Parts

Synder Filtraton stocks large inventories of spare parts and accessories for the E-Coat industry. With a wide range of spare parts and accessories for anolyte and membrane filtration systems, Synder can supply or replace these accessories with exceptional speed so your production is minimally stalled. We can also provide industrial grade housing units for our elements, which can be customized to fit any system. Contact us to find the most appropriate housing unit and parts for your E-Coat line.

---

Pretreatment Products

Synder Filtration offers a wide range of pretreatment options to help maintain membrane life and sustain performance. Ranging from cost-effective bag filters to large volume multimedia filters, Synder’s pretreatment products are engineered to reduce the amount of chemical constituents and particulate matter that can foul membranes. Contact us today to learn about the right pretreatment options for your application.

CHEMICAL DOSING

Small peristaltic pumps constantly deliver low concentrations of antiscalant, antioxidant (for chlorine), pH balance (acid/caustic), or other pretreatment chemicals to ensure optimal membrane performance.

CARTRIDGE FILTERS

Cartridge filters are a good “final catch” before the membrane. Cartridge filters from 0.1-100micron are available.

WATER SOFTENERS

Synder Filtration’s water softeners are designed to remove inorganic ion species from the feed solution via ion exchange resin loaded into a tank with a recharge control head and backflush capabilities.

BAG FILTERS

Bag filters are a cost effective method of reducing particulates in feed streams, resulting in an increase in membrane life and performance. Bag filters from 0.1-100 micron are available.

ACTIVATED CARBON FILTERS

Granular Activated Carbon (GAC) is excellent for removing organic solvents in water, including chlorine.

MULTI-MEDIA FILTERS

Multi-Media filters are an optimal choice when dealing with large volumes of TSS & turbidity.

---

Cleaning & Dosing Chemicals

MEMBRANE CLEANER PRODUCTS

Synder offers a set of concentrated membrane cleaner products, available in liquid and powder form. The typical use concentration is a 1% solution, providing a cost effective dilution when compared to other products. The non-oxidizing biocide, Excide™ 20, is an EPA registered antimicrobial for use on membrane systems.

---

Industrial Element Installation Procedures

PRE-INSTALLATION NOTES

Spiral elements must fit snugly in their vessels in order for them to function properly. If a loose-fitting element is put into operation, unnecessary bypass flow and lower flux may be observed.

A preservative solution is used to prevent microbial growth and membrane dry-out during shipping and storage. While this solution is not classified as hazardous, extra care should be take to limit exposure.

Recommended Equipment:

• Sharp knife or scissors
• Gloves
• Safety glasses
• Dust mask

INSTALLATION PROCEDURES

1. Remove the element from the plastic bag and take this opportunity to do a thorough visual examination of the element. There should be no mold, dust, or dirt anywhere on the element.
2. Prepare an element loading diagram to document the serial number(s), date, element model number, location within the system, and any other required information for future reference.
3. Install the new O-ring supplied with your element onto the top cap and lubricate them with glycerine. A vial of glycerine is included with the shipment.
4. Insert the element into the pressure vessel. It should fit snugly.
5. O-rings should be well lubricated prior to installation with a non-petroleum based lubricant such as glycerine or any mild household liquid detergent.
6. A sufficient flush should be performed on all elements prior to start-up. Clean water at 122°F (50°C) should be used in a non-recirculating mode for at least 10 minutes after installation. This should remove residual preservative solutions, and glycerine.
7. The element is now ready for start-up. Feed and/or recirculation pumps should “ramp-up” RPMs slowly to prevent the element from being shocked. Varial Frequency Drives (VFDs) are recommended for all feed and recirculation pumps to safely control pump RPMs.
8. Synder Filtration recommends the collection of daily performance data of the system and element performance. The following data should be collected at least daily and is required in the event of a warranty claims:
   1. Flows (feed, permeate, concentrate)
   2. Pressures (feed, permeate, concentrate)
   3. Operating temperatures (production and CIP)
   4. Hours of operation (production and CIP)
   5. Other cleaning parameters (pH, time, chlorine PPM exposure)
   6. Unexpected events (system upsets, unscheduled shutdowns, etc)

---

E-Coat Element Installation Procedure

1. Remove the flow meter/assembly from the housing top cap. Store in a safe place to prevent damage.
2. Remove the Victaulic coupling from the top cap.
3. Lift the top cap off the housing. In most cases, the element will lift up with the top cap. If it does not, pull the spent element out by the permeate tub extension, ATD, or by removing the housing and bottom cap to push the element out.
4. Carefully remove the element from its storage bag. For elements with rubber seals, ensure they are properly installed by lubricating with glycerine.
5. Replace the O-ring on your top cap with the new O-ring supplied with your element and lubricate them with glycerine. A vial of glycerine is included with each shipment.
6. Eliminate the residual paint from the housing. Fill the housing approximately 1/3 full with DI/RO water.
7. Insert the bottom plug into the end of the element without the rubber seal(s). For elements with no rubber seal, insert bottom plug into any end.
8. Insert the element into the housing, bottom end plug first. Do not force the element. For elements with tape wrap, you may trim the tape until it has a snug fit.
9. Gently push the element to make sure the element is seated on the bottom of the housing. Ensure the permeate tube is completely submerged in DI/RO water.
10. Carefully insert the top cap connector into the permeate tube. Replace the top cap and tighten the bolts. Reinstall the flow meter/bypass assembly and tighten the union connections.
11. Circulate DI/RO water through the element for 15 minutes in the CIP loop. Purge to drain, and then refill with fresh DI/RO water. If this is not possible, soak the element in DI/RO water for at least one hour, purge to drain, and re-fill the housing with fresh DI/RO water.
12. Open both the paint permeate to rinse valve and the paint return valve.
13. Start paint feed pump and slowly open paint feed valve (to fully open in 3-5minutes). Adjust the inlet pressure to a minimum of 50 PSI.
    Warning: When operating on paint or cleaning, the appropriate permeate transport valve must be 100% open. When operating on paint, the “Permeate to Rinse” valve must be 100% open. When cleaning, the “Permeate to CIP tank” valve must be 100% open. Throttling or closing any
    permeate valve while the element is in operation can result in "leakers" and "smokers" and will void our warranty.
14. Adjust the pressures until the system balances out and the pressure/flow rates stabilize.

Disclaimer: Procedures may not apply to all E-Coat processes. Please contact Synder for more information on proper handling and storage guidelines.

---

TechCELL Installation Guide

GATHER THE FOLLOWING TOOLS PRIOR TO STARTING:

• DI Water source, the cells will need to be filled as they are placed into the paint bath
• Utility Knife
• Qty 2 1/2” wrenches
• Qty 2 9/16” wrenches

INSTALLATION WITH PAINT IN THE TANK

1. Carefully remove the TechCELL shell from its packing, leaving on the plastic bag containing the TechCELL.
2. Wipe off the surface of the anode for the TechCELL and remove tape from the anolyte supply tube. DO NOT USE SUPPLY TUBE TO HOLD ANODE.
3. Install the short Power Cable to the anode tap with the supplied hardware.
4. Carefully insert the anode into the TechCELL shell. Lay shell on a flat, clean area. Start by sliding the anode in the open top of the shell. Once the anode is completely inserted, lift top of the shell no higher than a 45-degree angle and rotate the shell to allow the anode to slide into the remainder of the way in the shell.
5. Carry the TechCELL to the paint tank. Remove the protective plastic bag from the TechCELL.
6. Gather the 2 sets of Unistrut cell clamps for one TechCELL.
7. Lower the TechCELL into the paint bath close to the designated position.
8. Place the clamps around the neck of the TechCELL. The TechCELL should be vertically positioned so that the membrane is completely submerged just below the paint level.
9. Once the TechCELL is secured immediately fill the TechCELL with DI water to a level a few inches below the return nozzle.
10. Attach the 3/8” supply line to the flow indicator after the proper length of the tubing has been determined and trimmed.
11. Determine the proper return tubing length. Attach the 1/2” return line to the TechCELL and then insert the other end into the return manifold.
12. Attach the long power cable to the short power cable. Connect the power supply cable from rectifier to the anode cell power cable (with quick connect).

INSTALLATION WITHOUT PAINT IN THE TANK

1. Follow the above steps, but do not remove the protective plastic bag from the membrane area. Typically the bag is lowered to a point on the cells neck where interference with the clamps is eliminated.
2. Once the cell is in place; fill the TechCELL with DI water until the paint is being introduced into the tank. Do not let the anolyte (DI) solution in the cells remain dormant for more than 24 hours. Verify that the anolyte circulation system is operational prior to installing the TechCELL units.

FLOW INDICATOR INSTALLATION

Install by tapping a 1/4” NPT in supply manifold. Install indicator using Teflon tape around threads. Flow indicators should be vertical on the manifold.

POWER CABLE INSTALLATION

1. Attach the lug connector to the buss bar in a location that allows multiple TechCELL long Power Cable connections. Typically one every 5 feet on the buss bar is adequate.
2. Install the long Power Cables to the lug. Typically five Power Cables per 125 Amp lug.

---

Anode Cell Removal and Maintenance

To remove the cell for maintenance, inspection, replacement or long term storage, please do the following:

1. Make sure all power from rectifier is turned off and rectifier locked out. Never work on an energized system.
2. Shut off and disconnect the anolyte supply tubing from the secondary flow indicator.
3. Unplug the quick disconnect power lead and disconnect the short cable from the anode.
4. Remove the anode from the cell.
5. Remove the anolyte return tubing from the nozzle on the cells neck.
6. Loosen and remove the cell clamps from the strut channel, while holding the shell from falling into the tank.
7. Carefully lift the shell out of the tank. When about 1/3 to 1/2 of the shell is out of the tank, start rotating the shell to allow the anolyte solution to drain into the paint bath.
8. Once the shell is out of the tank, immediately rinse off the shell with DI water to remove any paint. Resins and solids may be removed with solubilizer and or diluted solvents.
9. Do not allow membrane to dry out. If it is necessary to store the shell for an extended period of time, place unit in a plastic bag and seal it from the environment. A small amount of biocide placed in the bag will aid in unwanted growth. Store unit vertically when possible.

CELL REPLACEMENT

1. Carefully insert anode assembly into the shell, be sure the anode is fully sealed.
2. Work backwards through steps 1-6, making sure all power from rectifier is turned off and rectifier locked out.

---

Standard Cleaning Guidelines

The following procedure is a general guideline for the cleaning/sanitization of spiral elements. Depending on individual process streams, equipment and process time some variations in cleaning procedures may be required for optimal cleaning results. Please consult a qualified chemical supplier for application specific cleaning regimes.

Improper cleaning sequence, chemical concentration or abnormal temperatures/pH/pressure profiles can significantly reduce membrane life and possibly void any warranties offered on the element(s). If you have any questions or concerns about your cleaning regime, please contact Synder Filtration immediately.

CONCENTRATE DISPLACEMENT AND INITIAL FLUSH

1. Flush the remaining concentrate in the system back to the concentrate tank or to drain.
2. Using clean water heated to 122°F/50°C (or 104°F/40°C for NF), adequately flush the system in non-recirculation mode to remove any
   remaining build-up. The retentate and permeate should appear to be clean after this step.
3. Perform a complete Clean-In-Place (CIP) immediately after the initial flush per the following.

CAUSTIC WASH

1. Circulate warm clean water (122°F/50°C or 104°F/40°C for NF) through the system under standard pressure and flow parameters.
2. Add caustic SLOWLY to achieve a pH of 10.8-11.0. DO NOT EXCEED pH 11.0 (pH 10.5 for NFW/NFG/PZ/PY/PX).
3. Circulate caustic solution for 30 minutes.
4. Flush the system to drain with clean, warm water (same temperature as before).

ACID WASH

1. Circulate warm clean water through the system under standard pressure and flow parameters.
2. Add a sufficient amount of acid SLOWLY to achieve a pH of 2.0-2.2. DO NOT EXCEED pH 2.0 (pH 3.0 for NFW/NFG/PZ/PY/PX).
3. Circulate acid solution for 30 minutes.
4. Flush the system to drain with clean, warm water (same temperature as before).

SANITATION (CAUSTIC/CHLORINE SOLUTION) – FOR UF/MF

1. Circulate warm clean water through the system under standard pressure and flow parameters.
2. Add caustic SLOWLY to achieve a pH of 10.8-11.0. DO NOT EXCEED pH 11.0 (pH 10.5 for PZ/PY/PX).
3. Add chlorine SLOWLY to achieve constant level of 150 ppm. DO NOT EXCEED 180 ppm.
4. Circulate the caustic/chlorine solution for 30 minutes.
5. Periodically check and maintain a chlorine concentration of 150 ppm.
6. Flush the system to drain with clean, warm water (same temperature as before).
   Note: For NF, dechlorination is recommended.

Synder Filtration believes the above information and data herein to be accurate. However, said information is offered in good faith, but without guarantee of results since the conditions and methods used are beyond Synder Filtration’s control. Synder Filtration assumes no liability as to the application of the previously mentioned data.

---

E-Coat Cleaning Guidelines

Spiral Elements should be cleaned when the permeate rate has declined between 20-30% from the steady state permeate rate that was recorded when either the element was installed initially or last cleaned. Steady state permeate rate is the rate that you record about 15-20 minutes after the element is initially put on the paint, or after the element has been thoroughly cleaned.

Note: The permeate rate should never drop more than 30% before an element is cleaned.

CLEANING PROCEDURES

1. When initially cleaning an element, flush the paint from the element (preferably back to the paint tank) with UF permeate. If your system is large enough, and time permits, do this 2 more times. This helps with the cleaning process and helps recover as much paint as possible.
2. If UF permeate is unavailable, make up a solution of artificial permeate using DI/RO water and acetic acid. Adjust the heat and pH of the solution to that of the paint. Flushing the paint from the element with cold DI/RO water, you can “set” the paint on the element surface, making it difficult to clean. Confirm that this is acceptable with the paint manufacturer before proceeding.
3. After flushing the paint from the element, flush the element to drain. Start with a full heated cleaning tank of DI/RO water, pH adjusted to pH of the paint. Once you have started flushing the element to drain, open the DI/RO water fill valve to the cleaning tank to maintain the level in the cleaning tank. This will allow you to thoroughly flush the element to drain, while gradually lowering the temperature of the water.
4. When the flush water is reasonably clean from the element , slowly close the cleaning pump discharge valve and stop the pump.

SPECIAL RECOMMENDATIONS

There are many cleaning formulas available for cleaning spiral elements. Many of them were developed in the early days of cathodic paints when the paints were formulated with lead, solvents, and higher solids. These formulas were very effective for those paints, but are not as effective with today’s low solvent and no solvent, low lead and no lead paints.

Synder Filtration has formulated a concentrated cleaning product for use with our membranes and other spiral elements. The concentrate ratio is 1:99 and does not require the use of any solvents; it uses muriatic acid (acetic and formic acid may be substituted for muriatic) and is usually effective in 60 minutes or less. The key to its success is cleaning at a pH of 2.0 to 2.2, maintaining a temperature between 100°F and 110°F, and
cleaning before the permeate rate has decline too far.

For more information regarding cleaning procedures for E-Coat elements, please contact Synder.

---

Element Storage Procedures

6 MONTHS OR LESS (SHORT TERM)

Immediately following the final CIP flush, the system should be filled with 1% Sodium Metabisulfite (MBS) solution with a pH of 4.0-5.0. Every 7-10 days the following procedure should be performed:

1. Drain MBS solution from the system and flush to drain with clean water.
2. Run a caustic wash (pH 10.8-11.0; 120 – 122°F; 15-20 minutes)
3. Flush to drain with clean water.
4. Recharge the system with a fresh bath of MBS.

LONGER THAN 6 MONTHS (LONG TERM)

A long term shutdown (over 6 months) can be handled easily and efficiently. This involves the removal of elements from the system, soaking them in preservative solution (vertically if possible), and sealing in a plastic bag for future use.

1. The preservative solution should include:
   • 20% Glycerine
   • 2% Sodium Metabisulfite
   • pH 4.0-5.0
2. Remove the element from the vessel, drain the elements in a vertical position to avoid extensive dilution of the preservative solution.
3. Place the element in a preservative for a minimum of 15 minutes.
4. Depending on the number of elements, the preservative solution may become diluted. In that event, add more preservative to maintain pH 4.0-5.0.
5. Remove the element from the preservative and allow to drain for approximately 10 seconds, then place the element back in the bag.
6. Seal the bag either via heat seal or waterproof tape. This should be done well to prevent any leakage during storage/transport.
7. Element storage in 50°F – 59°F (10°C – 15°C) will increase storage life of the elements. Refrigeration is highly recommended.
8. Contact Synder Filtration prior to storing any elements to discuss element warranty concerns.

Synder Filtration believes the above information and data herein to be accurate. However, said information is offered in good faith, but without guarantee of results since the conditions and methods used are beyond our control. Synder Filtration assumes no liability as to the application of the previously mentioned data.

---

Water Quality Guidelines

The quality of water used for flushing and cleaning Synder Filtration membranes is of utmost importance in order to avoid unwanted deposits on the membrane originating from the water. In most cases, municipal water does not qualify as “clean water”.

Special attention should be paid to possible foulants such as iron, manganese, and silicates. Clean water must meet the following specifications at all times:

---

Spiral Element Template

Company:	Email:
Contact Person:	Address:
Telephone:	City/State/Zip:
Fax:	Country:

ELEMENT CHARACTERISTICS

---

TechCELL Drawing

---

SuperCELL Drawing

---

Daily Log Sheet