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WS1.5

Clack Valves WS1, WS2, WS1.5, CF 1054/EN, CB1248/EN Installation, Operation & Maintenance Manual

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Filox Series Filter
Installation Operation
Maintenance Manual
Filox Filter WS1, WS1.5 & WS2 Series Valve
FILOX WS ISS 2 \page 1
Filox Series Filter
Installation Operation Maintenance Manual
CONTENTS NOS. PAGE
1.0 UNPACKING AND PARTS IDENTIFICATION 4
1.1 Unpacking Notes 4
1.2 Basic Parts List 4
1.3 Missing or Damaged Goods 4
2.0 TEMPORARY STORAGE 4
3.0 GENERAL NOTES 5
3.1 Iron & Manganese Removal 5
3.2 System Management 5
3.3 Filox Frequently Asked Questions 6
4.0 REGENERATION/BACKWASH
4.1 The Backwash Process 8
4.2 Time Clock Control of Backwash 8
5.0 PRE-INSTALLATION CHECKS
5.1 Mechanical 9
5.1.1 Foundations/Drainage 9
5.1.2 Operating Space 9
5.1.3 Incoming Water 9
5.1.4 Pipework 10
5.1.5 Water Supply Company Requirements 10
5.2 Electrical 10
6.0 ASSEMBLY/INSTALLATION 11
6.1 Mechanical 11
6.1.1 Pipework 11
6.1.2 Drains Connections 11
6.2 Assembly 12
7.0 COMMISSIONING 14
7.1 Introduction 14
7.2 Programming 14
7.3 Commissioning 17
FILOX WS ISS 1 \page 2
Filox Series Filter
Installation Operation Maintenance Manual
NOS. PAGE
8.0 ROUTINE MONITORING 18
9.0 FAULT FINDING AND RECTIFICATION 19
9.1 No Flow to Service 19
9.2 Poor Treated Water Quality 19
9.3 No Backwash 20
9.4 Unsatisfactory Capacity between Regeneration’s 20
10.0 WARRANTY AND SERVICE 21
10.1 After Sale Warranty 21
11.0 TECHNICAL DATA 22
11.1 Process and Operating 22
11.1.1 Filox Series Filters CF1044 to CF 1354 22
11.1.2 Filox Series Filters CF 1465 to CF1865 22
11.1.3 Filox Series Filters CF 2160 to CF 3072 22
11.2 Engineering Data 23
11.2.1 Filox Series Filters CF1044 to CF 1465 23
11.2.2 Filox Series Filters CF 1665 to CF 3072 24
13.0 SPARES LIST 25
13.1 WS1 Valves 25
13.2 WS 1.5 Valves 25
13.3 WS 2 Valves 25
14.0 CE CERTIFICATE 26
FILOX WS ISS 2 \page 3
Filox Series Filter
Installation Operation Maintenance Manual
1.0 UNPACKING AND PARTS LIST
1.1 UNPACKING NOTES The unpacking of the Filter is quite straightforward, and there are no ‘hidden’
items. It is advisable to keep the packages sealed until such time as they are used, to prevent dust or water entry.
1.2 BASIC PARTS LIST
1. VALVE (c/w flow controllers on outlet and drain)
2. CLACK MANUAL
3. INSTRUCTIONS
4. VESSEL (c/w riser and distribution system)
5. 4” - 2 1/2” REDUCER (if required)
6. FILOX (qty as specified)
7. GRAVEL (qty as specified)
1.3 MISSING OR DAMAGED GOODS
Immediately on receipt of the goods, it is advisable to check that all items ordered have been received. If you have any doubt that goods have been supplied as requested, please contact your supplier immediately. If any items are missing or damaged, the carrier and your supplier must be notified within 2 days of receipt if a claim is to be made.
2.0 TEMPORARY STORAGE
If installation is not to start immediately after delivery, the equipment should be stored in a clean dry area, where it will not be damaged, or be subjected to temperatures below freezing.
FILOX WS ISS 1 \page 4
Filox Series Filter
Installation Operation Maintenance Manual
Installation Operation Maintenance Manual
3.0 GENERAL NOTES
These instructions cover the FILOX Range of filters, which includes model numbers from CF1044 to CF 3072.
It is recommended that these instructions are read thoroughly before commencing any work on the unit, particularly if you have no previous experience of installing and using a filter.
3.1 Iron & ManganeseRemoval
Heavy metallic contaminants, and some non-metallic contaminants can be removed from water using specific media. These media can be mixed in a multi-layer bed which, when combined with an appropriate backwash or regeneration system, can be tailored to solve a wide range of specific contaminant problems.
Iron and manganese and sometimes aluminium and hydrogen sulphide can be removed with a catalytic filter media, which uses oxygen in the water to convert the metal ions from the soluble to an insoluble form. The insoluble precipitate is then filtered out onto the surface of the media. Depending on the composition of the raw water a choice of media can be used.
Filox filter media is one of these medias and just requires backwashing with the raw water to clear the bed. The operating parameters for Filox make it suitable for a number of water types.
3.2 System Management
In order to remove accumulated deposits from the filter bed, the water flow through the filter is reversed (backwashed). Water is run to drain at a high rate to separate the filter media from the deposits. The control valve completes the backwash cycle automatically at the intervals and times set during installation. Backwash and fast rinse times are set for 16 minutes per cycle but can be altered to suit individual requirements.
All filter valves have the option of an additional volt free microswitch, which can be used to initiate a regen pump etc.
FILOX WS ISS 1 \page 5
Filox Series Filter
Installation Operation Maintenance Manual
3.3 FiloxSystem Operation'FrequentlyAsked Questions'
The main uses for a FILOX filter are for domestic and commercial removal of Iron, Manganese, Hydrogen Sulphide and general turbidity. The Filox media is a catalytic media that is not used up in the reaction however oxygen has to be present in the water to enable the oxidisation to occur. If the feed water does not contain the necessary level of oxygen then a system for adding this will be required
The feed water flows under pressure to the control valve on the vessel where it is directed through to the filtration media. Filox systems built with WS1, 1.5 or 2 valves will bypass raw water during backwash. For this reason the systems are set to backwash at 2:00 AM.
Maximum Iron levels: Filox systems can be used on Iron levels of up to 20 ppm with certain reservations. There are a number of examples working satisfactory at higher levels.
Manganese removal: Manganese removal in a Filox system is dependent on the level of Iron and other contaminants in the raw water. The greater the amount of Iron, the easier it is to remove the Manganese. With an Iron: Manganese ratio of 10:1, the Manganese is extracted very well at a pH of 7.0-7.5. When the ratio reaches 5:1 then the pH needs to be between
7.8-8.2. When the Manganese level exceeds the amount of Iron then a pH of above 8.3 is required. While the pH correction media in the Filox blend will raise the pH of acid water, it cannot raise it above 8.0 consistently if the general level of dissolved solids is high and the Langellier index is saturated. A full water analysis is essential when considering using the Filox system primarily for Manganese removal.
Hydrogen Sulphide: Hydrogen sulphide is removed at concentrations of up to 3 ppm.
Humic acid/tannins: Decaying organic matter in the raw water supply creates Humic acid or tannins, sometimes seen as light brown colour in low pH 'peaty' water supplies. These tannins can combine and complex with Iron and Sulphur, coating and blinding the media reducing its effectiveness. The tannin level in the raw water should be less than 2 ppm and ideally less than 1 ppm to eliminate the need for frequent changes or rejuvenation of the filter media. With high tannin water supplies it will be necessary to oxidise the tannins to an insoluble floc that is filtered out with the other contaminants. The most effective oxidiser is Ozone, and an Ozone generator with injection venturi and off-gas valve has proved to be very successful at preventing tannin blinding. An alternative is to remove the tannins with an Organic Scavenger. Moreover, Organic Scavengers need to be regenerated with Caustic Brinerequiring thecontrol and addition of two consumables, one of which is corrosive and difficult to handle.
Chlorides:Very high Chloride levels in the raw water can inhibit the performance of the Filox system by preventing Iron and Manganese from precipitating. In normal circumstances the Chloride level in the raw water should be less than 100 ppm and ideally below 50 ppm.
FILOX WS ISS 1 \page 6
Filox Series Filter
Installation Operation Maintenance Manual
Backw ash: Whi le the Filox system is designed to operate and
backwash at the same flow rate, it essential that there is sufficient pressure and volumeof water at the recommended backwashflow. It may be necessary to fit a larger backwash flow button, or even a higher flow valve on larger systems if the pressure is low, just to achieve the required cleaning of the filter bed. Alternatively a longer backwash may be needed to achieve the same effect.
FILOX WS ISS 1 \page 7
Filox Series Filter
Installation Operation Maintenance Manual
4.0 REGENERATION/BACKWASH
4.1 The Backwash Process The backwash process consists of two stages:-
Backwash - Water flows upwards through the media bed, and out to a drain. As it does so it separates the deposits from the filter media and cleans off any particles of dirt or pipework corrosion products, which may have accumulated during the service cycle.
Fast Rinse - This follows the backwash cycle and entails rinsing away any residual deposits from the media and re-packing the media bed. This is carried out down flow with water flowing through the media in the direction of service.
4.2 TIME CLOCK CONTROL OF REGENERATION INITIATION
Most filter application systems are supplied with a time clock configuration valve, which initiate regeneration at a pre-set time (usually 2:00 AM) after a pre-set number of days. The frequency of regenerations is fully adjustable, but a minimum of once every 3 days is recommended.
FILOX WS ISS 1 \page 8
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