Hygienic ALB Strainer Installation, Operation, and Maintenance (IOM) Manual
Application The Hygienic Angle Line Basket Strainer (ALB) can be used in process locations where particulates require removal from the process stream and where a high level of hygienic design is required. The strainer can be installed horizontally, vertically or at different angles as it is fully drainable in any orientation so long as the strainer insert handle side is at the high point. The ALB collects particulates in a similar manner to that of a basket strainer (strains inside out), so when the strainer insert is removed, the particulates will remain inside of the basket. Operating Parameters
Table 1: Maximum Operating Pressures and Temperatures (“Standard” 13MHHM Clamp) ALB Connection Size (Body Size) Max. Pressure @ 70 °F (PSI) Max. Pressure @ 250 °F (PSI)
Max Allowable Pressure Drop @ 70°F (PSI) 1
1.5” - 3.0” TC (4.0” Body Size)
200
125
40
1 Mesh underlay may sustain damage at pressure above max allowable pressure drop. Maximum Recommended Flow and Pressure Drop Table 2: Maximum Recommended Flow and Pressure Drop Connection Size Max. Recommended Flow (gpm) Pressure Drop @ Max. Recommended Flow 1 (psi) 1.5” 45 1.3 2.0” 85 1.8 2.5” 135 3.3 3.0” 200 5.0 1 For 70 °F Water
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Installation & Operation Reference the Hygienic Component Solutions catalog for Cv information to determine the pressure drops, along with dimensional information. As-built drawings for each strainer are also supplied with the turnover package. Safety Precautions 1. Do not exceed temperature or pressure rating of strainer assembly. 2. Do not loosen or remove any clamps while the strainer is under pressure. 3. Lockout supply pump(s) and other equipment in-line with the strainer during cleaning to prevent accidental operation when strainer is open. 4. Use protective gloves when removing strainer element and clearing debris from element. 5. Use only Sani-Matic replacement parts.
The ALB strainer inlet configuration options are as shown:
Figure 1: Inlet Configurations Hygienic ALB Strainer ALB strainers are designed for flow into the side tangential connection and out of the end connection. The strainer can be installed vertically, horizontally or at an angle (45° - 90°) to ensure full drainability. Air is eliminated during operation due to the sweeping action of the liquid so long as the velocity is high enough to remove the air. Minimum recommended flowrates for air removal are shown in table 3. Soils will be collected inside of the strainer element so soil particulates will be removed from the housing along with the element as it is removed from the housing. Table 3: Minimum Flowrate to Eliminate Air from Housing ALB Connection Size (Body Size) Min. Flowrate (GPM) Horizontal Orientation Min. Flowrate (GPM) Non- Horizontal Orientation
1.5” – 3.0” TC (4.0” Body Size)
30
45
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It is recommended to support the strainer body through use of a hanger or other type of support structure within the process piping. The end cap must be tightly fitted into the end of the element prior to installing the element in the strainer housing. The end cap is designed to lock in place as long as the x-ring is installed. The end cap should feel secure after installation without any looseness to the assembly.
If twisting the end cap is overly difficult, apply water to the x-ring seal area to ease the twisting action.
Ensure the ALB strainer is installed for ease of access with plenty of space for full removal of the perforated element insert. Use adequate piping supports to support the strainer so it does not move during production, and to ensure the clamp connections are not overly stressed. Isolation valves can be used upstream or downstream of the strainer to assist with element insert removal by reducing the amount of product/water that will spill out when opening the ALB strainer. As the ALB strainer becomes plugged with debris, the differential pressure will increase. Typically, noticeable differential pressure increases occur once the strainer is more than 80% fouled. A fully soiled strainer that completely stops the flow will result in a pressure drop equal to that of the dead-head pressure of the supply pump which could damage strainer components. It’s recommended to monitor the pressure and make a change once the pressure drop exceeds typical pressure drops. As noted in Table 1, the maximum allowable pressure drop is 40 psi.
Assembly The ALB component assembly contains 12 sub-components (depending on selected configuration):
1. Element Gasket 2. Sample Valve - Optional 3. Element O-Ring 4. Element Tri-Clamp 5. Element (Perforated) 6. End Cap X-Ring 7. End Cap 8. Pressure Gauges (Qty. 2) – Optional 9. Strainer Body (Upper) 10. Pressure Gauge Clamps (Qty. 2) - Optional 11. Pressure Gauge Gaskets (Qty. 2) - Optional 12. High Pressure Body Clamp 13. Sight Glass Gaskets (Qty. 2) - Optional 14. Sight Glass Window - Optional 15. Strainer Body (Lower)
The mesh underlay (if included) is first slid inside of the perforated element. The end cap is then fastened to the retaining ring (end of element) using the quarter turn latching nobs, turning the end cap in a clockwise direction. The full element assembly is then slid inside of the body of the ALB strainer.
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Figure 2: Exploded View
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Cleaning* The ALB strainer is a fully CIP’able component although it requires periodic inspection and manual cleaning of the element and mesh underlay (if included) to remove captured particulates. Manual cleaning and inspection is carried out by first removing the element from the body and removing the mesh underlay from the element if one is included. Cleaning of both the element and mesh underlay can be accomplished with a hose, soft brush or COP method (Cabinet Washer or Immersion Parts Washer). Once both the element and mesh underlay are visibly clean, the element and mesh underlay should be reinstalled for a full CIP cleaning. Mesh underlays can also be treated as single-use components, where a new one is installed after each use. The facilities’ Standard Operating Procedures (SOPs) should be followed regarding cleaning chemicals, temperatures, and other key cleaning TACT (Time, Action, Chemical, Temperature) parameters to be used.
Figure 3: Example Cleaning in COP Immersion Parts Washer *These are recommended cleaning instructions only. Follow any plant standard operating procedure (SOP) that your facility may have in place.
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Maintenance During normal disassembly, cleaning, and reassembly, inspect the key areas of the strainer that may require maintenance: 1) Soil. Inspect for soil particulates or foreign matter caught in the element. Remove as necessary. 2) Tri-Clamp Gaskets / O-Rings. Inspect for cuts, abrasions, tears, holes, deformity, or other visible damage. Replace as necessary or no longer than a recommended annual basis. 3) Element. Check for bent components, abnormal holes, or other wear and tear or damage. Replace as necessary. 4) Mesh Overlay (if applicable). Inspect for tears or other damage. Replace as necessary or no longer than a recommended monthly basis. Higher mesh sizes (finer mesh) may require more frequent replacement.
Troubleshooting Table 4: Troubleshooting Problems
Solutions
1. Check Cv data to make sure the correct ALB strainer size was selected. Ensure that correction factors were used to account for viscosity differences between water and product being strained. 2. Disassemble the ALB strainer and check if the element is fouled with particulates. Typically, at 80% fouled, the pressure drop begins to increase. 1. Ensure correct size element and mesh were selected depending on the particulate size. 2. Inspect strainer element and check for damage to mesh. Ensure all o-rings are in place. Ensure the end cap is staying in place. 3. Damaged mesh underlay. Replace with new. 1. Ensure End Cap X-Ring is installed. 2. Ensure no damage to element where end cap is installed. 3. Ensure no damage to X-Ring or End Cap – if so, replace.
Pressure drop is too high
Particulates are passing through strainer
End Cap Feels Loose
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Hygienic Component Solutions Catalog
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