Evoqua Wallace & Tiernan V10k Instructions Manual
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Evoqua Wallace & Tiernan V10k Instructions Manual

Evoqua Wallace & Tiernan V10k Instructions Manual

Gas feeder
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Wallace & Tiernan® Instruction
Manual V10k™ Gas Feeder
W3T292561 / WT.025.100.000.GE.IM.0914
Suite 3, 2nd Floor, One 60 London Road, Sevenoaks, TN13 1BT
Tel.: +44 1732 771777
Fax: +44 1732 771800
www.evoqua.com

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Summary of Contents for Evoqua Wallace & Tiernan V10k

  • Page 1 Wallace & Tiernan® Instruction Manual V10k™ Gas Feeder W3T292561 / WT.025.100.000.GE.IM.0914 Suite 3, 2nd Floor, One 60 London Road, Sevenoaks, TN13 1BT Tel.: +44 1732 771777 Fax: +44 1732 771800 www.evoqua.com...
  • Page 2 Wallace & Tiernan, Barrier, Chem-Ad, DEPOLOX, OSEC, and V10k are trademarks of Evoqua, its subsidiaries or affiliates. The designations used in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owners.All rights, especially those to duplication and distribution as well as translation, are...
  • Page 3 International Contact Information Area Phone email Australia +61 (0) 3 8720 6597 info.au@evoqua.com Canada +1 905 944 2800 canadainfo@evoqua.com Germany +49 8221 9040 wtger@evoqua.com Singapore +65 8630 7100 infosg@evoqua.com U.S.A. +1 856 507 9000 wtus@evoqua.com U.K. +44 (0) 1732 771777 info.uk@evoqua.com...

  • Page 5: Table Of Contents

    - if such a change appears to have been made to your equipment, contact Evoqua Water Technologies for information. Our guarantee is conditional upon the equipment being treated in accordance with the contents of this manual and its supplements.
  • Page 6 TYPE V10k GAS FEEDER Operation Preparation for initial operation Operating procedures Changing gas cylinders Intermittent start/stop Electronic controller Maintenance Cleaning the parts Preventive maintenance kits Maintenance of the Gas Feeder Maintenance of the injector Maintenance of the vacuum demand valve Maintenance of aux.
  • Page 7 TYPE V10k GAS FEEDER WARNINGS HAZARDOUS CHEMICALS All users of this gas feeder should be made aware of the problems associated with handling chlorine, sulphur dioxide and ammonia in either liquid or gaseous form and the effects of exposure to their fumes. Reference should be made to the literature available from the suppliers of these chemicals, paying particular attention to information and advice on protective clothing.
  • Page 8 TYPE V10k GAS FEEDER NOTES ON PROTECTIVE EQUIPMENT AND CLOTHING The following warning is general in nature due to the variety of hazardous chemicals this equipment is capable of handling. WARNING: When dealing with hazardous material it is the responsibility of the equipment user to obtain and follow all safety precautions recommended by the material manufacturer.

  • Page 9: Generic Installation Guidelines

    The onus is on the assembler of the system to meet the requirements of the directives. The equipment you have been supplied with by Evoqua Water Technologies has been tested for compliance with the EMC Directive (Electromagnetic Compatibility Directive 89/336/EEC) and appropriately marked.
  • Page 10 TYPE V10k GAS FEEDER any recommendations made as to methods of excess cable storage. If the cables are too short contact Wallace & Tiernan for supply of correct cables (This would normally be advised at order time). Any screened sensor cables should be run separately from all other cables and the screen should be earthed at the Control/Analyser equipment.

  • Page 11: General Description

    TYPE V10k GAS FEEDER GENERAL DESCRIPTION The Type V10k Gas Feeder is a V-notch type, vacuum operated, gas control unit designed to feed chlorine, sulphur dioxide, carbon dioxide or ammonia gas into a flow of water at dose rates up to 10 kg/hour (equivalent chlorine).

  • Page 12: Gas Feeder

    TYPE V10k GAS FEEDER A vacuum demand valve equipped with a pressure relief system is available. Should the demand valve fail to close when the injector is shut down, any gas pressure that builds up in the body of the valve will unseat the relief diaphragm and enter the vent line.

  • Page 13: Injectors

    TYPE V10k GAS FEEDER RESIDUAL CONTROL - in a residual control system a measured residual signal (such as that provided by a W&T Process Control Unit (PCU)) is used to drive the plug positioner motor in the appropriate direction for correct dosing. FLOW AND RESIDUAL CONTROL (compound loop) - in a flow and residual control system a combination of the two signals described above (such as that provided by a W&T Process Control Unit), is used...
  • Page 14 TYPE V10k GAS FEEDER The vacuum demand valve designed for automatic switchover is fitted with a mechanical detent. Moving the valve's control knob to the 'stand- by' position (see Section 1.4.1 below) sets the detent in its latched position. This version of the valve is used for dosing systems that are arranged for duty and stand-by operations.
  • Page 15 TYPE V10k GAS FEEDER Switchover arrangement STAND-BY EXHAUSTED OFF (valve closed): indicated by an empty cylinder outline with a bar across its outlet pipeline to show that gas is prevented from flowing. STAND-BY (supply available but valve still closed): indicated by a shaded-in cylinder outline with a bar across its neck and no gas in the supply pipeline.
  • Page 16 TYPE V10k GAS FEEDER pipework. If the operating vacuum is lost for any reason, the diaphragm will retract under spring pressure and shut-off the gas. 1.4.4 Pressure Relief The pressure relief valve fits into a recess in the back housing of the demand valve.

  • Page 17: Vacuum Switches

    TYPE V10k GAS FEEDER The heater is temperature controlled by a thermostat clamped into a recess in the side of the valve body. Vacuum Switch (optional) As an optional fitting, the vacuum demand valve can be supplied with one of two types of vacuum alarm switch. A single function vacuum alarm switch fitted inside the valve or a dual function vacuum alarm switch which is mounted external to the valve.

  • Page 18: Installation

    TYPE V10k GAS FEEDER INSTALLATION WARNING: To avoid possible severe personal injury or damage to plant this equipment should be installed, operated and serviced only by trained qualified personnel who are thoroughly familiar with the entire contents of this instruction book. Unpacking the Equipment CAUTION: Some equipment is despatched with temporary plugs fitted to the open ports/connections that come into contact with gas.

  • Page 19: Installing The Gas Feeder

    TYPE V10k GAS FEEDER Gas containers are heavy and the location should be chosen to give the shortest possible gas supply line, consistent with safe handling of the containers. Ensure the location is such that unauthorised persons can be excluded from the installation. Adequate access should be available to permit ease of operation and maintenance of all plant items.

  • Page 20: Installing The Injector

    TYPE V10k GAS FEEDER 2.3.1 Installing the flowmeter (Fig.2A) NOTE: The flowmeter should only be fitted immediately prior to commissioning to avoid damage to the glass tube. Apply some silicone grease to the two ‘O’ rings and place them into the grooves. Place the flowmeter tube onto the lower O-ring, the high values of the scale at the top, press down the lower seat with two fingers, if necessary press down the lower O-ring with the flowmeter tube, position the tube into the upper seat and slowly release the lower seat.
  • Page 21 TYPE V10k GAS FEEDER plate). The nozzle (with stamped NUMBER) and tailway (with stamped LETTER) are supplied loose. Place the O-rings on both parts and apply some silicone grease. When fitting nozzle and tailway to the injector body pay attention to the flow direction (see arrows on the body).

  • Page 22: Point Of Application

    TYPE V10k GAS FEEDER The gas connection for the 15 kg/hour injector can be turned in 60° steps to provide, if required, a more suitable angle of connection to the vacuum pipeline. This is done by removing the 6 bolts in the top cover and turning it until it mates with the notch in the injector body that is closest to the desired position.

  • Page 23: Water Supply And Solution Delivery Pipelines

    If this is thought to be the case, we recommend that reference be made to Evoqua Water Technologies. The water line should include a suitable shut-off valve and a strainer.
  • Page 24 TYPE V10k GAS FEEDER If the system is composed of only one vacuum demand valve, when its associated cylinder is depleted, a full cylinder is put in place and the unit is reconnected. In the following sketch a duty and standby gas supply system is illustrated. Two demand valves, arranged for automatic switchover, are employed.
  • Page 25 See Fig.17 for further information. 2.7.3 Safety vent line As a matter of policy Evoqua Water Technologies recommend that wherever practicable the safety vent line should be run to a gas tight room, preferably containing an automatic shut off system. The vent lines should be terminated in an absorbing carbon filter.

  • Page 26: 2.8 Electrical Connections

    TYPE V10k GAS FEEDER Flowrate: 200 400 1000 2000 3000 4000 6000 8000 10000 g/h Flexible plastic tube 3/8'' x 1/2'' (RP.68-4484): >300 >300 100 Flexible plastic tube 1/2'' x 5/8'' RP.68-4502: >300 >300 >300 1/2" nb rigid pvc: >300 >300 >300 >300 3/4"...
  • Page 27 TYPE V10k GAS FEEDER Refer to the wiring diagram 30-E-7662 shown at Fig.18. To gain access to the plug positioner remove the control knob (2mm Allen key), lift the lateral brackets and pull the cover away. Make sure that the gear case of the positioner is safely connected to the earth stud.
  • Page 28 TYPE V10k GAS FEEDER EXTERNAL ALARM UNIT U11597 ALARM UNIT U22511 SIGNAL (PANEL MOUNTED) (WALL MOUNTED) (OPTIONAL) LIGHT RELAY BUZZER MOMENTARY EXTERNAL 115VAC 60Hz CONTACT SWITCH SIGNAL POWER (OPTIONAL) SUPPLY TERMINAL STRIP FURNISHED ONLY ON PANEL MOUNTED TO STOP AUDIBLE ALARM U22551 ALARM PUSH SWITCH HANDLE TOWARD...

  • Page 29: Operation

    TYPE V10k GAS FEEDER OPERATION Preparation for Initial Operation When all the connections in Section 2 have been made, the following pre- start checks must be carried out before the plant is placed in service. 3.1.1 Physical check Ensure the gas supply lines from the cylinders or drums are securely connected and that all valves in the system are closed.

  • Page 30: Operating Procedures

    TYPE V10k GAS FEEDER 3.1.3 Gas supply leak check WARNING: In the following procedure, chlorine gas is introduced into the system and all pressure joints are tested for leaks. It is recommended that breathing apparatus should be worn during the procedure! NOTE: Testing for leaks of chlorine or sulphur dioxide gas is accomplished by introducing ammonia fumes to the area under test.
  • Page 31 TYPE V10k GAS FEEDER On automatic units pull the control knob out, manually set the feed rate then push the control knob back into position. Check that the dosage rate at the Electronic Controller (SCU, PCU etc.) corresponds to the indicated feed rate at the flowmeter. For further information see the instruction manual of the Controller.

  • Page 32: Changing Gas Cylinders

    TYPE V10k GAS FEEDER Changing Gas Cylinders WARNING: To avoid possible severe personal injury or equipment damage, before changing cylinders personnel must be completely familiar with the appropriate gas manual and your local plant operating and emergency procedures. Gas cylinders must be secured (e.g. chained) to prevent their being knocked over.

  • Page 33: Intermittent Start/Stop

    TYPE V10k GAS FEEDER Position the vacuum demand valve on the cylinder valve and tighten the yoke screw securely. Check for leaks as detailed in Section 3.1.3. Check the gasket joint and packing nut for leaks. Correct as indicated. WARNING: To avoid possible severe personal injury or equipment damage, do not tolerate leaks.

  • Page 34: Maintenance

    TYPE V10k GAS FEEDER MAINTENANCE Maintenance of the gas feeder is simplified if the following general precautions are taken. These are easily followed and will reduce costly maintenance and repairs by providing good operating conditions. CHECK ALL CONNECTIONS DAILY - for signs of leaks. Every leak must be rectified as soon as it is discovered.

  • Page 35: Preventive Maintenance Kits

    NOTE: Parts included in the kits can be replaced by competent personnel referring to the maintenance and safety instructions. Repairs going further may only be carried out by personnel specially instructed by Evoqua Water Technologies Only use original Evoqua Water Technologies spare parts.
  • Page 36 TYPE V10k GAS FEEDER Remove the seal clamping screw (18), unscrew the plug stem (19) from the V-notch plug. Renew the shaft seal and the O-ring. Remove the V-notch plug (15), orifice (16) and washer and clean. After 5 years renew the V-notch plug and the washer. Where the plug assembly fits into the V10k body, the bore should be cleaned with warm water, detergent and a soft cloth.

  • Page 37: Maintenance Of The Injector

    TYPE V10k GAS FEEDER NOTE: The electric plug positioner is maintenance-free but some adjustment is obtainable - see Section 4.8. Maintenance of the Injector ONCE IN EVERY 12 MONTH PERIOD - the injector, whatever type is used, should be subject to the following maintenance procedure:- The 'O' rings can be removed by using a needle and taking care not to damage the surfaces of the corresponding part! Apply some acid-free grease (silicon or vacuum grease or vaseline) to the new 'O' rings and...
  • Page 38 TYPE V10k GAS FEEDER Remove the valve stem (11), renew spring (10) and O-ring (7). Every 2 years renew the valve stem (11). Remove the plug (29) with large screw driver, renew 'O' ring (28). Press out the valve seat (9) and fit a new one together with a new 'O' ring (8).
  • Page 39 TYPE V10k GAS FEEDER Renew the 'O' ring in the gas inlet. Refit the tailway and reconnect the suction and delivery pipelines. Check for tightness and function. 4.4.3 Standard 19mm Injector U-96275 (Fig.6) Shut down the gas feeder as detailed in Section 3.2.3. Referring to Fig.6 disconnect the gas inlet, the water inlet and the solution outlet pipework as far as necessary for removing the tailway and nozzle from the injector.
  • Page 40 TYPE V10k GAS FEEDER Refit the nozzle (black with number) and tailway (white with letter). Ensure correct flow direction! Renew the O-ring in the gas inlet union (2). Reconnect the gas inlet line, the water supply and solution delivery pipelines and check for tightness and function. 4.4.4 Anti-syphon 19mm injector U-96276 (Fig.

  • Page 41: Maintenance Of The Vacuum Demand Valve

    Where operation of the S10k is on a start/stop basis and is mounted on a cylinder it should be serviced every 6 months. Evoqua Water Technologies recognise that servicing of the S10k is not, generally speaking, within the responsibility of the plant operator. To...
  • Page 42 TYPE V10k GAS FEEDER Where customers prefer to use manufactures personnel - a Evoqua Water Technologies Service Engineer can carry out the service. NOTE: Reference should be made to either the separate S10k demand valve manual or the supplement at the back of this manual.
  • Page 43 TYPE V10k GAS FEEDER WARNING: Do not remove the packing nut whilst the valve is under pressure. If necessary, the packing should be replaced as detailed below:- AUX. CYLINDER & SMALL HEADER VALVES (Figs.12 & 16B) Close the main cylinder valve and purge the gas line as detailed in the gas control unit instruction manual.

  • Page 44: Adjusting The Electric Plug Positioner

    TYPE V10k GAS FEEDER Your attention is directed to the Chlorine Institute's recommendation that:- Flexible metal tubing connections used to connect supply cylinders to piping systems "Should be replaced whenever there is a sign of deterioration but, in any event, at intervals no greater than annually". Similar recommendations apply for other gases This recommendation recognises the potential for mechanical damage to these connections in normal use as well as the possibility of reduced...
  • Page 45 TYPE V10k GAS FEEDER Remove the control knob and the positioner cover. Remove all connectors at the board and disconnect the earth (7) from the gear. Remove the 4 screws (5) and remove the motor-gear assembly including circuit board. Remove the two screws (8) and remove the cover (9). Remove the two clamps (2) and bellows (3).
  • Page 46 TYPE V10k GAS FEEDER 4.7.3 Replacing circuit board Disconnect the positioner from the mains. Remove the control knob and the cover. Remove all connectors from the board. Remove cam wheel (6) use 1.5 mm Allan key. Remove all 4 screws (5). Remove the board with transparent cover.
  • Page 47 TYPE V10k GAS FEEDER Check for function. 4.7.5 Adjusting the plug positioner The electric plug positioner is tested and adjusted in the factory before despatch and should be ready to operate when installation and external wiring are complete. However, before starting the system after a major overhaul it is recommended that the following procedure is carried out to establish correct dose rates:- WARNING: Mains voltage can kill! It is essential that the utmost care is taken...
  • Page 48 TYPE V10k GAS FEEDER Press the cam wheel to the stop and tighten the setscrew without turning the cam wheel. Adjusting the MAXIMUM limit switch Referring to the following sketch move the connecting rod fully in and then 2 mm back. Turn the black cam wheel by turning the set screw (2) so far that both MAX switches (5) are switching.

  • Page 49: Fault Finding

    TYPE V10k GAS FEEDER Check both adjustments by moving the connecting rod. Remove the ohmmeter and reconnect terminals 13,14 and 15. Remove the control knob, if mounted and replace the cover without damaging the shaft sealing. Move the connecting rod fully out. Refit the control knob and turn it so that the arrow points to the minimum setting and fix in position.
  • Page 50 TYPE V10k GAS FEEDER 4.8.1 Gas feeder will not feed gas CAUSE REMEDY Gas supply exhausted Change gas cylinder Gas supply turned off Open valves Solution tube clogged at poa Open or clean both corporation cock and solution tube Leakage in pipelines Check if flow indicator goes to zero when gas supply is turned off.
  • Page 51 TYPE V10k GAS FEEDER 4.8.5 Smell of chlorine in chlorinator room or vicinity CAUSE REMEDY Pressure relief valve blown Clean relief valve or replace unit 4.8.6 Water in flowmeter CAUSE REMEDY Defective check valve in injector Clean and check injector 4.8.7 Air is pulled through vent line CAUSE REMEDY Pressure relief valve leaks...
  • Page 52 REMEDY Potentiometer wrongly set Check potentiometer adjustment Defective potentiometer (1kOhm ±10%) Replace board (standard pot. only - for special pot. refer to Evoqua Water Technologies) Defective wiring or terminals Check terminals and wiring to the board Toothed wheels or potentiometer Adjust pot.

  • Page 53: Typical V10K Dosing System Fig.1

    TYPE V10k GAS FEEDER AUTOMATIC MANUAL V10k V10k TYPICAL V10k DOSING SYSTEM Gas cylinder Cylinder retainer Main cylinder valve Vent line Vacuum demand valve V10k Gas Feeder (see Fig.2) Gas suction tube (see Fig.16) Injector (see Figs.4 to 7) Treatment main Mains injection fitting Non return valve Solenoid valve...
  • Page 54 TYPE V10k GAS FEEDER PART No. DESCRIPTION U.26664 — Differential vacuum valve (see Fig.3) AAC8947 W3T168305 Manometer AAC8950 W3T166236 P.97102 W2T503950 Hose connector P.96974 W3T161473 Hose connector P.97105 W3T171125 PTFE Hose PXF.96220 W2T505771 Oval head screw PXF.92139 W3T165423 Plain washer PXB.95211 W2T504780 Anchor bolt...
  • Page 55 TYPE V10k GAS FEEDER TABLE 1 V-NOTCH PLUGS Range V-notch V-notch Spring (Cl2/ plug New Part No. plug New Part No. Seat New Part No. New Part No. (automatic SO2) (automatic) (manual) only) 60 g/h PXA.97057 — P.88495 W2T635885 U.17641B W3T292329 P.88701 W2T635907...
  • Page 56 TYPE V10k GAS FEEDER 125mm (5") scale Flowmeters for Chlorine and Sulphur Dioxide Capacity Part No. (old) Part No. (new) 60 g/h AAA.4105 W2T633089 AAA.4108 W2T633091 AAA.4111 W2T633092 AAA.4114 W2T633093 1000 AAA.4117 W2T633094 1.5 kg/h AAA.4120 W2T633095 AAA.4123 W2T633096 AAA.4126 W2T633098 AAA.4129 W2T633099...
  • Page 57 TYPE V10k GAS FEEDER PART No. DESCRIPTION P.96974 W3T161473 Hose connector P.97141 W3T169056 Plug P.37660 W2T635543 Gasket P.38405 W2T635553 'O' ring P.37656B W2T635541 Stem holder P.38409 W2T635555 Stem P.37655 W3T161291 U.26664 W3T165515 Valve body assembly P.48661B W2T635577 Spring P.88701 W2T635907 Spring (60 g/hr capacity) P.37660 W2T635543...
  • Page 58 TYPE V10k GAS FEEDER PART No. DESCRIPTION P.31295 W3T168893 Plug P.37747 W3T161296 Plug P.100363 — Union nut P.100355 — Union end P.100457 W3T172724 O-ring P.100371 W3T172719 O-ring (NH3) P.97050 W3T159666 Plug P.97044 W3T172899 O-ring AAA5549 W3T160358 O-ring (NH3) P.95279 W3T161434 O-ring PXC95968 W3T172997...
  • Page 59 TYPE V10k GAS FEEDER 12 13 FIG.4 U.96273 - 25mm INJECTOR W3T292561 / WT.025.100.000.GE.IM.0914...
  • Page 60 TYPE V10k GAS FEEDER PART No. DESCRIPTION P.97050 W3T159666 Plug P.97044 W3T172889 O-ring AAA5549 W3T160358 O-ring (NH3) P.97032 W3T159656 Valve stem P.95279 W3T161434 O-ring PXC95968 W3T172997 O-ring (NH3) P.97054 — Guide bushing P.97061 W3T159674 Diaphragm AAA5788 — Diaphragm (NH3) P.97053 —...

  • Page 61: Fig.6

    TYPE V10k GAS FEEDER PART No. DESCRIPTION P.34374 W2T12043 Plug P.100363 — Union nut P.100355 — Union end P.100457 W3T172724 O-ring P100371 W3T172724 O-ring P.97031 W3T159655 Inlet screw P.100440 W3T168861 O-ring AAA5546 W3T164203 O-ring (NH3) P.95279 W3T161434 O-ring PXC95968 W3T172997 O-ring (NH3) P.48655 W2T376099...
  • Page 62 TYPE V10k GAS FEEDER PART No. DESCRIPTION P.97058 — Body P.95408 — Name plate P.97035 — Guide pin P.97037 — Disk P.100440 W3T168861 Washer P.91805 — Union nut P.94729 W3T168988 O-ring P.97063 W3T161483 Diaphragm APQ.3604 W2T634623 O-ring P.97065 — Spring P.87812 W2T635808 O-ring...
  • Page 63 TYPE V10k GAS FEEDER THE INTERNAL VACUUM ALARM SWITCH IS NOT A USER SERVICABLE ITEM — THIS ILLUSTRATION IS PROVIDED TO SHOW THE BASIC OPERATION OF THE SWITCH Microswitch Pivot post Operating lever Actuator Mounting bracket Flying leads Front housing FIG.8 SINGLE FUNCTION VACUUM SWITCH W3T292561 / WT.025.100.000.GE.IM.0914...
  • Page 64 TYPE V10k GAS FEEDER PART No. DESCRIPTION Differential vacuum valve, see Fig.3 PXA.96974 W3T169101 Adaptor for 6 mm od tubing RP902.4426 W2T506980 Tube, 6 mm od x 4 mm id Micro switch contact for 'GAS FAILURE' (Set at - 60" H2O) ACG5135 W2T634457 1 Dual function vacuum switch...
  • Page 65 TYPE V10k GAS FEEDER PART No. DESCRIPTION AAA.6780 W2T633395 Universal yoke assy. AAB2058 W3T291627 Yoke Assembly (Ammonia Only) AKG.5549 W2T367045 O ring AAB.1736 W2T10156 Seat AAB2291 W2T10012 Nipple AAA6225 W2T633350 Nipple (Ammonia only) ANM.5366 W2T367090 Valve Stem APQ.4110 W2T11229 Stem Spring AAB2294 W2T10010 Retainer...
  • Page 66 TYPE V10k GAS FEEDER PART No. DESCRIPTION AAA.6219 — Chlorine Institute yoke assy. P.19386 W2T11797 Yoke screw P.44783 W2T11814 Yoke P.11003 W2T635459 P.39369 — P.25121 W2T11781 Clamp P.16191 W2T635486 Lead gasket AGK.5346 — Nipple AKG.5549 — O - ring AAA.7106 W3T167913 Screen (1.27 x 1.27 monel wire mesh) AIC.5355...
  • Page 67 TYPE V10k GAS FEEDER PART No. DESCRIPTION U.1243B W3T292325 Auxiliary cylinder valve, complete (chlorine) U.80412 W3T292355 Auxiliary cylinder valve, complete (sulphur dioxide) U.2065 W3T292333 Auxiliary cylinder valve, complete (ammonia) P.84614 W2T635723 Control handle P.86152 W2T635756 Packing nut P.86153 W3T292204 Stem P.614B W2T635610 Packing...
  • Page 68 TYPE V10k GAS FEEDER PART No. DESCRIPTION U.80440 W3T292357 Auxiliary drum valve, complete (chlorine) U.80084 W3T292353 Auxiliary drum valve, complete (sulphur dioxide) P.5822 W3T292185 Wrench P.5730 W2T19495 Packing gland P.30428B W2T635506 Packing PR.83842 — Union nut (chlorine) P.81668 W2T635677 Union nut (sulphur dioxide) P.80893 W2T635642 Adaptor (chlorine)
  • Page 69 TYPE V10k GAS FEEDER PART No. DESCRIPTION U.82363 W3T292365 Large header valve (Cl U.80728 W3T292359 Large header valve (Ammonia) P.5822 W3T292185 Wrench P.5730 W2T19495 Packing gland (Cl P.81400 W2T635659 Packing gland (Ammonia) P.30428B W2T635506 Packing P.80794 W3T292189 Body (Cl P.81398 W2T635657 Body(Ammonia) P.5728...
  • Page 70 TYPE V10k GAS FEEDER V10k Gas Control Unit with rigid pipework from regulator to injector Req'd for ½"nb Req'd for ½"nb pipework only pipework only Req'd for ½"nb pipework only RP684468 Vent hose 6m not included in kit Parts kit AAA7497 — Arrangement B Part No.
  • Page 71 TYPE V10k GAS FEEDER V10k Gas Control Unit with flexible hose from regulator to injector Parts kit AAA7494 — Arrangement D Part No. (old) Part No. (new) Description AAA3267 W2T633002 Union end ½" NPT U27486 W3T99057 Connector ½" NPT RP684484 W2T636355 Polyethylene Hose ½" OD ⅜" ID FIG.15 VACUUM LINE CONNECTIONS (Drg.XAC1027 Sht.
  • Page 72 TYPE V10k GAS FEEDER V10k Gas Control Unit with rigid pipework from switchover regulators to injector RP684468 Vent hose 6m not included in kit Req'd for ½"nb pipework only Req'd for ½"nb Req'd for ½"nb pipework only pipework only Parts kit AAA7503 — Arrangement E Part No.
  • Page 73 TYPE V10k GAS FEEDER PART No. DESCRIPTION U.81903 — 1 Junction box and conduit U.82518 W2T636607 Gas gauge, 0-10 bar, Cl U.82519 W2T636608 Gas gauge, 0-4 bar, SO U.82520 W2T636609 Gas gauge, 0-16 bar,NH U.80535 W3T292358 Bracket P.81097 — Screw, ¾" lg U.81954 W2T636599 Tube assy, Cl...
  • Page 74 TYPE V10k GAS FEEDER PART No. DESCRIPTION U.80413 W3T292356 Small header valve, Cl . See Detail 'A' U.80916 W3T292362 Small header valve, NH P.89325 W2T635948 Reducing bush, R¾xRc¾ 3 P.83482 W2T635699 Wall mounting flange P.89350 W2T635951 Plug nipple, R¾ P.89321 W2T635944 Tee, Rc¾ AAA.5349 W3T291516 Barrel nipple, 250 lg...
  • Page 75 TYPE V10k GAS FEEDER FIG.17 EXTERNAL CONNECTION DIAGRAM (Drg.30-E-7662) W3T292561 / WT.025.100.000.GE.IM.0914...
  • Page 76 TYPE V10k GAS FEEDER Injector Operating Requirements The following pages have been included to assist in the determination of the water pressure and flow required to operate the gas feeders under various conditions. The hydraulic data for the ¾" injector is applicable to systems with a capacity of up to 5 kg/h, whilst the hydraulic data for the 1"...
  • Page 77 TYPE V10k GAS FEEDER HYDRAULIC DATA FOR ¾”-INJECTOR Part No. Throat Tailpiece Code Standard Anti-syphon PXE48961 PXE49042 PXD-48962 PXG48961 PXG49042 PXE48962 PXJ48961 PXJ49042 PXF48962 PXK48961 PXK49042 PXG48962 PXH48962 PXJ48962 Back Chlorine Injector Throat and Tail Pressure " " 1000 " 1500 "...
  • Page 78 TYPE V10k GAS FEEDER Back Chlorine Injector Throat and Tail Pressure " " 1000 " 1500 " 2000 " 3000 " 4000 " 5000 " Back Chlorine Injector Throat and Tail Pressure " " 1000 " 1500 " 2000 " 3000 "...
  • Page 79 TYPE V10k GAS FEEDER Back Chlorine Injector Throat and Tail Pressure " " 1000 " 1500 " 11.0 2000 " 12.4 3000 " 4000 " 10.5 5000 " 11.9 12.5 Back Chlorine Injector Throat and Tail Pressure " " 1000 "...
  • Page 80 TYPE V10k GAS FEEDER Back Chlorine Injector Throat and Tail Pressure 13.4 12.5 " 13.4 12.7 " 13.7 13.0 1000 " 14.3 13.2 10.0 1500 " 13.8 12.3 2000 " 14.5 13.8 3000 " 15.6 13.9 4000 " 17.5 14.7 G 14.5 H 5000 "...
  • Page 81 TYPE V10k GAS FEEDER Back Chlorine Injector Throat and Tail Pressure 11.2 21.0 19.4 " 21.0 19.8 " 20.1 1000 " 20.4 15.6 1500 " 20.8 17.4 2000 " 19.6 3000 " 20.5 4000 " 21.0 5000 " W3T292561 / WT.025.100.000.GE.IM.0914...
  • Page 82 PXK-50093 PXF-50094 PXD-50093 PXL-50093 PXG-50094 PXE-50093 PXH-50094 PXF-50093 PXJ-50094 PXG-50093 PXK-50094 PXH-50093 PXL-50094 PXJ-50093 NOTE: For capacities above 10000 g/h consult Evoqua Water Technologies. Back Chlorine Injector Throat and Tail Pressure " " 1000 " 1500 " 2000 " 3000 "...
  • Page 83 TYPE V10k GAS FEEDER Back Chlorine Injector Throat and Tail Pressure " " 1000 " 1500 " 2000 " 3000 " 4000 " 5000 " 6000 " 8000 " 10000 " 11.0 Back Chlorine Injector Throat and Tail Pressure " "...
  • Page 84 TYPE V10k GAS FEEDER Back Chlorine Injector Throat and Tail Pressure " " 1000 " 1500 " 2000 " 3000 " 4000 " 10.5 5000 " 11.2 6000 " 8000 " 10.4 10000 " 11.8 Back Chlorine Injector Throat and Tail Pressure "...
  • Page 85 TYPE V10k GAS FEEDER Back Chlorine Injector Throat and Tail Pressure 11.7 " 12.1 C 13.0 D 11.7 " 12.9 C 13.3 D 12.3 1000 " 14.3 D 13.4 D 12.7 12.3 11.4 G 12.3 H 1500 " 14.9 D 14.1 E 13.1 12.4 11.6...
  • Page 86 TYPE V10k GAS FEEDER Back Chlorine Injector Throat and Tail Pressure 11.2 17.9 " 18.2 C 18.4 D 19.2 " 18.9 C 18.8 D 19.8 19.8 1000 " 19.5 D 21.0 19.9 18.2 G 19.6 H 1500 " 20.0 18.2 G 20.1 H 2000 "...
  • Page 87 TYPE V10k GAS FEEDER 11000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 7 8 9 10 Operating Water Pressure (bar overpressure) W3T292561 / WT.025.100.000.GE.IM.0914...
  • Page 88 TYPE V10k GAS FEEDER DEMAND VALVE MAINTENANCE S10k Overhaul Kit Part No. AAA1160 / W3T291488 W3T292561 / WT.025.100.000.GE.IM.0914...
  • Page 89 TYPE V10k GAS FEEDER MAINTAINING THE S10k DEMAND VALVE This supplement contains information on maintaining the S10k Demand Valve in good working order. It describes dismantling, servicing, reassembling the valve and includes illustrations and parts lists. WARNING: Hazardous gas is present in this equipment during normal operation.
  • Page 90 TYPE V10k GAS FEEDER Moisture CAUTION: When any connection is broken, even for a short time, immediately plug the resultant opening with a rubber stopper or equivalent to prevent the entrance of moisture. Moisture must be excluded from any part of the equipment which is normally exposed to dry gas only. While dry gas is non-corrosive, moist gas is extremely corrosive to common metals such as brass or steel.
  • Page 91 TYPE V10k GAS FEEDER Parts that come into contact with gas must have all traces of solvent and moisture removed from them before they are returned to service. Do not use heat on plastic or hard rubber parts. Tools When working with screws, bolts, nuts and other hardware, use the correct size tool to avoid damage.
  • Page 92 TYPE V10k GAS FEEDER SERVICING THE VACUUM DEMAND VALVE (FIG.1) Shutdown for Servicing WARNING: In the following procedure, which must be carried out before servicing any gas feeder system, a gas line is disconnected with a possible release of gas. It is recommended that self contained, positive pressure, breathing apparatus is worn.
  • Page 93 TYPE V10k GAS FEEDER Remove retainer (26), spring (23) and first check valve stem (22). Then remove the stem guide (29), spring (21) and the second check valve stem (20) from housing (27). Grip the inlet nipple and seat assembly with suitable tongs and hold it under hot running water (approx.
  • Page 94 TYPE V10k GAS FEEDER Testing for Gas Leaks WARNING: In the following procedure, chlorine gas is introduced into the system and all pressure joints are tested for leaks. It is recommended that breathing apparatus is worn during this procedure. NOTE: Testing for chlorine or sulphur dioxidegas leaks is accomplished by using a puffer bottle (W&T Part No.
  • Page 95 TYPE V10k GAS FEEDER PART No. DESCRIPTION AAA.6216‡ — Vacuum demand valve, (Universal yoke) AAA.6219‡ — Vacuum demand valve, (Chlorine Inst. yoke) ALI.5542 W2T367059 'O' ring AMK.5553 W2T11346 'O' ring APQ.5558 W2T367120 'O' ring AOK.4480 W2T11501 Front housing AMG.4473 W2T11506 Front housing, switchover APQ.4366 W2T11061...
  • Page 96 TYPE V10k GAS FEEDER PRESSURE RELIEF VALVE NOTE: The Vacuum Regulator Unit MUST have a pressure relif valve if the control unit is coupled directly to the Regulator. 31 32 33 34 FIG.1 VACUUM DEMAND VALVE W3T292561 / WT.025.100.000.GE.IM.0914...
  • Page 97 TYPE V10k GAS FEEDER ACTIVATED CARBON FILTER The activated carbon filter absorbs small amounts of chlorine gas from the vacuum regulator vent. The activated carbon filter should be mounted vertically with the bottom of the unit approx. 200mm above floor level. As soon as the activated carbon is saturated, chlorine gas is discharged from the underside of the filter housing.
  • Page 98 TYPE V10k GAS FEEDER Fill the filter housing with fresh activated carbon and ceramic rings (part No. U-93882) and screw on. Activated carbon contaminated with SO2 Repeat the procedure as described above, except use sodium hydroxide (obtained locally) to neutralise the activated carbon. ~ 595 Part No.
  • Page 99 Evoqua Water Technologies Aftermarket Support and Service INTRODUCTION Every day, millions of people and thousands of companies rely on Evoqua CO-ORDINATION Water Technologies to help them meet their needs for clean water. Evoqua Water Technologies dedicated Customer Service Department is As the leading global provider of chemical dosing, metering, disinfection, co-ordinated from our Derby office.
  • Page 100 Tel: +44 (0) 1732 771777 Email: info.uk@evoqua.com Wallace & Tiernan, Ionpure and Memcor are trademarks of Evoqua, its subsidiaries or affiliates, in some countries. All information presented herein is believed reliable and in accordance with accepted engineering practices. Evoqua makes no warranties as to the completeness of this information.

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