AMIAD WATER SYSTEMS Ltd.

Disclaimer

Copyright © 2017 Amiad Water Systems Ltd. All rights reserved. The contents of this document, including all information, materials, images, illustrations, data, drawings, and names, are the sole property of Amiad Water Systems Ltd. Amiad may alter or change the content without notice. Reproduction, copying, modification, or distribution of this document or its content is prohibited without written consent. This document does not replace certified drawings or project-specific information. Amiad assumes users understand the risks involved and provides this document in good faith. While efforts have been made to ensure accuracy, any errors or omissions should be reported to Amiad or its representatives.

Safety Instructions

General

1. Prior to installation or any treatment, carefully read the installation and operation instructions.
2. Observe all conventional safety instructions to avoid danger to workers, the public, or property.
3. No modifications to the equipment are permitted without written notification from the manufacturer or its representative.

Installation

1. Install the filter according to the installation instructions in this manual.
2. Ensure sufficient clearance for easy access during future treatments and maintenance.
3. Install extra safety devices for hot water applications to prevent skin burns.

Operation and Maintenance

1. Loosen or unscrew bolts only after filter pressure has been released.
2. Avoid splashing and water leaking to minimize slipping hazards or equipment damage.
3. Open and close valves slowly and gradually.
4. Remove grease and fat material residues to prevent slipping.
5. After treatment, re-assemble protection covers.
6. Manual cleaning of the filter element using high water pressure or steam must follow specific cleaning system instructions and be performed safely.
7. Manual cleaning using acid or chemical agents must follow relevant material safety instructions and be performed safely.

Use of Lifting Equipment

1. When using lifting equipment, ensure the filter or lifted part is securely chained.
2. Do not leave lifted equipment unattended unnecessarily. Avoid working below lifted equipment.
3. Wear a safety helmet when using lifting equipment.

Principle of Operation

Amiad semi-automatic filters trap dirt from water using a perforated or weave-wire stainless steel filtration element. Elements are available in various filtration degrees and are color-coded for identification. Water flows from the inside out, causing dirt to accumulate on the inner surface of the element. The direction of flow is indicated by an arrow on the filter housing. Brushaway filters offer manual cleaning of the screen without removal, using mechanical wiping and flushing via a valve to remove debris.

This document covers the Installation, Operation, and Maintenance of the 6"S and 8" In-Line Brushaway filters.

Installation

Installation Site Design Recommendations

1. Select a convenient location for optimal operation and maintenance.
2. Refer to page 4 for a typical installation drawing.
3. Isolation valves are required to isolate the filter during maintenance or repair.
4. Design the installation according to the correct direction of flow, indicated by an arrow on the filter housing.
5. Ensure sufficient space for removing the filter element for cleaning or service.
6. It is recommended that the filter housing be situated at a 45° downward angle or horizontally.

Installation Instructions

1. Install the filter on suitable foundations, ensuring it is properly bolted and anchored. Verify the direction of flow matches the arrow on the housing.
2. Before installation, flush the main line at the connection point to remove large objects that could damage the internal mechanism.
3. Arrange for adequate lighting in the filter area for good visibility and safe maintenance.
4. Provide suitable platforms and safety barriers for easy access without climbing on pipes or equipment.
5. Install a non-return valve on the filter outlet port to protect against backflow or pressure surges.

IMPORTANT!! Installation of a Non-Return Valve protects your filter from static backpressure and dangerous reverse flow! [?]

Typical Installation Diagram

The typical installation diagram illustrates the 8" In-line Brushaway Filter connected to inlet and outlet piping. Dimensions provided are approximately: Overall height (including pipes) 2045 mm (80.51 inches), overall length 746 mm (29.37 inches), and pipe diameter 800 mm (31.49 inches). The diagram shows the filter housing, connections, and flushing valve assembly.

Operation Instructions:

1. Clean the filter when the pressure differential across the screen reaches 0.5-bar.
2. Clean the Brushaway filter while it is under pressure.
3. Open the flushing valve gradually.
4. Turn the handle clockwise a few times.
5. Close the valve gradually.
6. If the filter remains clogged, repeat steps 3-5 with the downstream valve closed. If still clogged, close the upstream valve, drain the filter, and clean manually.

Maintenance:

1. Perform a general inspection to ensure the filter operates properly.
2. If leakage occurs from the spindle shaft, replace the internal O-ring seal (#17) and lubricate with silicon grease.
3. If cleaning ability decreases, remove the screen and check brush condition. Brush bristles should press against the screen; replace if they do not.

Warning! To prevent water hammer (surge), always open and close valves gradually. [?]

Remark: 200 microns is the finest filtration degree recommended for Brush filters.

Parts Schedule (Molded Screen)

Parts Drawing (Molded Screen)

This section contains an exploded view diagram of the molded screen filter components. The components are numbered to correspond with the Parts Schedule above, allowing for easy identification of individual parts.

Parts Schedule (Perforated Screen)

Parts Drawing (Perforated Screen)

This section contains an exploded view diagram of the perforated screen filter components. The components are numbered to correspond with the Parts Schedule above, allowing for easy identification of individual parts.

Amiad Limited Warranty

This certificate applies to Amiad Products purchased from Amiad or an authorized Distributor. The warranty extends only to the original purchaser and is not transferable.

1. Amiad warrants Products to be free from defects in material and workmanship under normal use and service. Amiad will correct manufacturing defects in accordance with warranty conditions.
2. The warranty is enforceable for 12 months from the Bill of Lading date (the "Warranty Period").
3. If a defect is discovered during the Warranty Period, the Distributor must submit a written complaint to Amiad using the standard customer complaint form. Contact customer service for the form or for questions.
4. Upon Amiad's written demand, the Distributor shall return Defective Products or samples to Amiad at Amiad's cost. Customers should package securely and insure shipments. If Amiad determines the warranty does not apply, the Distributor will reimburse Amiad for costs (including freight and customs). Returned items must include the warranty certificate and purchase invoice. Returns require prior coordination and approval from Amiad.
5. Amiad's obligation is limited to repair or exchange, at its option, of defective Products or parts. A repaired or replacement product extends the warranty period by an additional 12 months, with a total maximum warranty period of 18 months from the original Bill of Lading.
6. This warranty is valid only if Products are installed according to Amiad's instructions and technical limitations stated in Amiad's literature or by a representative.
7. This warranty does not apply to damage or defects resulting from or related to:
   • (i) Catastrophes (fire, flood, power surges, unforeseen occurrences) for which customers are typically insured.
   • (ii) Customer fault, abuse, or negligence.
   • (iii) Customer responsibilities, including intake water not meeting agreed standards or improper storage.
   • (iv) Improper or unauthorized use of the Product or parts, failure to operate in conformity with Amiad's recommendations, operation by untrained personnel, or improper installation by an unauthorized third party.
   • (v) Maintenance or services performed by untrained personnel, not in conformity with Amiad's recommendations, or not following supplied literature procedures.
   • (vi) Alterations, modifications, foreign attachments, or repairs performed by anyone other than Amiad or its authorized representatives.
8. Amiad is not liable for any damages (indirect, special, exemplary, punitive, consequential, or lost profits) arising from this warranty or the Product's performance or failure to perform, even if advised of the possibility of such damages.
9. Amiad is excused from failure or delay in performance due to causes beyond its reasonable control or force majeure.
10. This limited warranty is the only warranty provided by Amiad and supersedes all other warranties.
11. Amiad makes no warranty for accessories or parts not supplied by Amiad. Correction of defective products not covered by this warranty will be provided for additional fees.