Evoqua Wallace & Tiernan S10k Instruction Manual
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Evoqua Wallace & Tiernan S10k Instruction Manual

Evoqua Wallace & Tiernan S10k Instruction Manual

Gas feed system
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Wallace & Tiernan® Instruction
Manual S10k™ Gas Feed System
W3T292562 / WT.025.200.000.GE.IM.0117
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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  • Page 1 Wallace & Tiernan® Instruction Manual S10k™ Gas Feed System W3T292562 / WT.025.200.000.GE.IM.0117 Suite 3, 2nd Floor, One 60 London Road, Sevenoaks, TN13 1BT Tel.: +44 1732 771777 Fax: +44 1732 771800 www.evoqua.com...

  • Page 2: Important Notice

    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 Our guarantee is conditional upon the equipment being treated in accordance with the contents of this manual and its supplements. We invite particular attention to it and urge that its contents be thoroughly understood and rigidly followed. EVOQUA WATER TECHNOLOGY CONTENTS TITLE SECTION...

  • Page 6: Table Of Contents

    TYPE S10K GAS FEED SYSTEM Installing the injector Point of application Electrical connections Vacuum pipelines 2.10 Single and dual function vacuum alarm switches 2.11 Operation Preparation for initial operation Operating procedures Intermittent Start/Stop operation Electric plug positioner Changing gas cylinders Electronic controller Multiple points of application Maintenance...
  • Page 7 TYPE S10K GAS FEED SYSTEM WARNINGS HAZARDOUS CHEMICALS All operators of this equipment should be aware of the problems associated with handling hazardous chemicals. Reference should be made to the literature available from the suppliers of these chemicals, particular attention being paid to the requirements regarding protective clothing and emergency procedures.
  • Page 8 TYPE S10K GAS FEED SYSTEM NOTES ON PROTECTIVE EQUIPMENT AND CLOTHING The following warning is general in nature due to the variety of hazardous chemicals the 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 Guidelines

    TYPE S10K GAS FEED SYSTEM GENERIC INSTALLATION GUIDELINES For Maintaining EMC integrity of Equipment supplied by Wallace and Tiernan The Guidelines below are general in nature. They do not guarantee compliance with legislation. The Installers/Assemblers/End Users of equipment supplied by Wallace & Tiernan should satisfy themselves as to the procedures required to ensure compliance.
  • Page 10 TYPE S10K GAS FEED SYSTEM shortened or the connectors modified, changed or removed. If the cables supplied are too long then reference should be made to the relevant instruction manual or typical installation drawings (If supplied) to check any recommendations made as to methods of excess cable storage. If the cables are too short contact Wallace &...

  • Page 11: Principle Of Operation

    TYPE S10K GAS FEED SYSTEM GENERAL DESCRIPTION The Type S10k Gas Feed System is a vacuum operated system designed to feed chlorine, sulphur dioxide, carbon dioxide or ammonia gas into a flow of water at feed rates up to 10 kg/hour equivalent chlorine. The system comprises three main items interconnected by the injector vacuum (i.e.
  • Page 12 TYPE S10K GAS FEED SYSTEM at the flowmeter tube, is pulled through the vacuum pipe work and into the injector. Here it mixes with the operating water and passes into the solution distribution system. If, during operations, a leak develops in the vacuum pipeline, air is pulled into the pipeline preventing gas from escaping into the atmosphere.

  • Page 13: Front Cover

    TYPE S10K GAS FEED SYSTEM The vacuum demand valve is supplied in four main assemblies all of which have double seat check valves; the standard unit for single cylinder operation and fitted with a universal yoke; the standard unit for single cylinder use but fitted with a Chlorine Institute yoke;...
  • Page 14 TYPE S10K GAS FEED SYSTEM EXHAUSTED SUPPLY EXHAUSTED: (valve open but cylinder empty): indicated by an empty cylinder outline with bar removed but no flow of gas in the supply pipeline. In this position the red OUT OF GAS warning indicator, located immediately above the top of the knob, is also uncovered.

  • Page 15: Front Housing

    TYPE S10K GAS FEED SYSTEM 1.3.2 Front housing The front housing, contains the diaphragm assembly and the control mechanism. Fixed in the centre of the diaphragm is the operating shaft which connects at its top end, via the operating lever, to the control knob. As the control knob is moved to the required setting so the operating shaft positions the diaphragm for the corresponding operation.
  • Page 16 TYPE S10K GAS FEED SYSTEM The pressure relief valve fits into a recess in the back housing of the regulating valve. The relief valve comprises a spring, plunger and diaphragm. The face of the diaphragm is spring loaded against two openings, one opening connects into the main chamber of the valve and the other connects to the vent line.
  • Page 17 TYPE S10K GAS FEED SYSTEM Manual Control (Fig.2A/B): Control of the gas feed-rate is achieved by turning the control knob (3) in the anticlockwise direction to increase the flow-rate or the clockwise direction to decrease the flow-rate. Stop/Start Control: Stop/start control is achieved by installing a solenoid operated water shut off valve in the injector water supply pipeline or utilising a water booster pump to supply operating water to the injector.
  • Page 18 TYPE S10K GAS FEED SYSTEM Alarm Switches (Optional) Optional alarm switches are available for use with the vacuum demand valve. These take two forms; a single function alarm switch mounted inside the valve and a dual function alarm switch which is mounted external to the demand valve.
  • Page 19 TYPE S10K GAS FEED SYSTEM Positioner:- Mains supply : 230v, 50 Hz, 19 mA 115v 60 Hz, 46 mA Time 0-100% : 80 sec (50 Hz), 66 sec (60 Hz) Potentiometer : 1 kOhm ± 10% Flowmeter capacities : 0.50 - 10 kg/h (equivalent Cl W3T292562 / WT.025.200.000.GE.IM.0615 0117...

  • Page 20: Unpacking The Equipment

    TYPE S10K GAS FEED SYSTEM 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. Piping for the chlorine (or sulphur dioxide) gas supply, where the gas is under pressure, should conform to Chlorine Institute (or Compressed Gas Association) recommendations.
  • Page 21 TYPE S10K GAS FEED SYSTEM Furnish storage space for the in-use and reserve gas cylinders, and protect them from falling over; from the weather; from direct sunlight or extremes of temperatures - not colder than 2° C (35°F) or warmer than 55° C (130°F). Provide a vertical surface for mounting the auxiliary flowmeter assembly(s), unless mounted on the vacuum demand valve.
  • Page 22 TYPE S10K GAS FEED SYSTEM Locate the flowmeter assembly to keep interconnecting pipelines between demand valve, flowmeter and injector as short as practicable. Flowmeter (Fig.2A/B) NOTE: For protection in shipment, the flowmeter and associated parts were removed after the flowmeter assembly was factory tested. These parts are separately packaged and should be assembled and installed as indicated.
  • Page 23 TYPE S10K GAS FEED SYSTEM WARNING: The chlorine demand valve MUST NOT be used for ammonia NOR the ammonia valve for chlorine or sulphur dioxide. Severe personal injury or damage to plant can occur if a vacuum demand valve is used with a gas for which it is not designed.

  • Page 24: Installing The Injector

    TYPE S10K GAS FEED SYSTEM reconnected. If the installation comprises two switchover units as shown in the following sketch, the duty valve will feed gas until its cylinder is depleted (at approximately 1 bar). At this time the vacuum is higher than normal and will activate the mechanical detent in the second valve to bring the full stand-by cylinder into service.
  • Page 25 TYPE S10K GAS FEED SYSTEM The injector diaphragm check valve will provide the greatest security against leakage if the injector is installed so that it is self draining. This can be accomplished by observing the steps in the following Sections. 2.7.1 U.96275 injector CAUTION: For proper dispersal of solution, the end of the tailway...
  • Page 26 TYPE S10K GAS FEED SYSTEM NOTE: The polyethylene tubing is suitable for pressures up to 5 bar. Pressure in excess of 5 bar requires rigid pipe. The throat and the tailway are sealed to the injector body by means of O-rings. Hand tightening is sufficient.
  • Page 27 TYPE S10K GAS FEED SYSTEM 10kg/hr INJECTOR 128.75 Thread R1 2.7.3 Injector water supply The injector requires a supply of reasonably clean water otherwise it should be equipped with a suitable water line strainer. The pressure and quantity of water required depends on the operating conditions (back pressure and gas feed rate).

  • Page 28: Point Of Application

    TYPE S10K GAS FEED SYSTEM 2.7.5 Injector vacuum (see Fig.12 for vacuum line connections) The injector vacuum pipeline must be sized to ensure that the minimum vacuum of 540 negative mbar is available at the flowmeter assembly. 2.7.6 Drain A floor drain is not essential, but is desirable to facilitate injector service. Point-of-Application Main connection.

  • Page 29: Vacuum Pipelines

    TYPE S10K GAS FEED SYSTEM INCREASE L1 MAX DECREASE L1 MIN EARTH L2 N Refer to the wiring diagram 30-E-7662 (see Fig.17). To gain access to the plug positioner remove the control knob (use a 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 30 TYPE S10K GAS FEED SYSTEM Flowrate: 600- 1.5- 4.0- 400g 3.0kg 6.0kg 8.0kg 10kg 200g 1000g 2.0kg 5.0kg Flexible plastic tube >300 >300 3/8'' x 1/2'' od (RP.68-4484) (m): Flexible plastic tube >300 >300 >300 1/2'' x 5/8'' od (RP.68-4502) (m): Rigid pvc tube (DN 15) (m): >300 >300...
  • Page 31 TYPE S10K GAS FEED SYSTEM EXTERNAL ALARM UNIT U115976 ALARM UNIT U22511 SIGNAL (WALL 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 32: Preparation For Initial Operation

    TYPE S10K GAS FEED SYSTEM 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 are securely connected and that all valves in the system are closed.

  • Page 33: Testing For Gas Leaks

    TYPE S10K GAS FEED SYSTEM 3.1.3 Testing for gas leaks WARNING: In the procedures described in the following paragraphs, chlorine gas is introduced into the system and all pressure joints are tested for leaks. It is recommended breathing apparatus are worn during the procedure! NOTE: Testing for chlorine or sulphur dioxide gas leaks is accomplished by using a puffer bottle (W&T Part No.U86151), containing a 10% ammonia solution, to introduce ammonia fumes to the area under test.
  • Page 34 TYPE S10K GAS FEED SYSTEM When all the above checks are satisfactorily concluded carry out the following checks of the gas feeder. If the point-of-application is in a main through a corporation cock or valve, the cock or valve must be open. Push in the solution tube, if fitted, until the end extends into the main, approximately a 1/3 to a 1/2 of the diameter of the main.

  • Page 35: Intermittent Start/Stop Operation

    TYPE S10K GAS FEED SYSTEM 3.2.3 Shutdown for short periods Turn off the water supply to the injector. 3.2.4 Shutdown for extended periods (e.g. servicing and repair) 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.

  • Page 36: Changing Gas Cylinders

    TYPE S10K GAS FEED SYSTEM Shut down the system, evacuate all gas from the vacuum pipework and release any pressure in the discharge line (see Section 3.2.4). Pull out the knob on the plug positioner (Fig.3 (18)), disengage the drive and then turn the control knob manually to lower the actuator shaft as far as possible.

  • Page 37: Electronic Controller

    TYPE S10K GAS FEED SYSTEM CAUTION: Do not permit the demand valve to hang by its tubing as this practice may loosen or damage the tubing at the connectors. Release the chain and move the depleted cylinder aside. Move the full cylinder into place, secure with chain and check the cylinder valve packing nut has not worked loose.

  • Page 38: Maintenance

    TYPE S10K GAS FEED SYSTEM MAINTENANCE General This section contains information on maintaining the S10k Demand Valve in good working order. It describes dismantling, servicing, reassembling the valve and includes illustrated views and spare parts lists. WARNING: Hazardous gas is present in this equipment during normal operation.

  • Page 39: Gaskets And O-Rings

    TYPE S10K GAS FEED SYSTEM 4.1.5 Gaskets and O-rings A supply of gaskets and O-rings should be kept on hand so that all gasketed joints can be maintained in proper condition. Regular replacement of gaskets will minimise operating difficulties and is recommended. The preventative maintenance kit includes a set of gaskets.

  • Page 40: Maintenance Intervals

    TYPE S10K GAS FEED SYSTEM 4.1.8 Injector performance Good injector performance is necessary for proper gas feeder operation. The gas feeder is tested to ensure that it will deliver the required amount of gas when used at the correct hydraulic conditions. If the injector performance is poor check the following:- Dirty Water Strainer - Fit a strainer in the water line prior to the injector to prevent foreign matter from blocking the injector throat...
  • Page 41 TYPE S10K GAS FEED SYSTEM 4.2.2 Weekly Remove and clean solution injection tubes. 4.2.3 Monthly Check the flexible connections in the gas supply system for signs of deterioration and renew as necessary. Deterioration exists if a salmon pink colour develops on the end fittings (de-zincification owing to a minute leak), if dents or kinks are present or if the tubing squeaks when handled (a sure sign of internal stress corrosion).

  • Page 42: Recommended Cleaning Intervals

    TYPE S10K GAS FEED SYSTEM Close the gas supply cylinder valve(s). Shut down the injector and let normal back pressure remain. Remove the tubing from the connection at the injector. No water should drip from the end of the disconnected tubing.

  • Page 43: Preventive Maintenance Kits

    TYPE S10K GAS FEED SYSTEM 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 less 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 mechanical strength resulting from the corrosive effects of damp air entering the tubing...

  • Page 44: Service Notes

    TYPE S10K GAS FEED SYSTEM Service Notes WARNING: Except when detecting leaks or making calibration adjustments, to avoid possible severe personal injury or equipment damage, the system MUST be shutdown as detailed in Section 3.2.4 before breaking any connections. 4.3.1 Cleaning the flowmeter If a milky white, powdery white, green slimy or brown oily deposit is visible inside the flowmeter tube or if the float has particles clinging to it or tends...
  • Page 45 TYPE S10K GAS FEED SYSTEM To clean the float, pour about an inch of warm to hot water (55 to 65° C) into the cup containing the float. Grasp the float with tweezers and shake it from side to side for a few seconds while keeping it submerged. Release the float.
  • Page 46 TYPE S10K GAS FEED SYSTEM WARNING: Do not use hydrocarbons or alcohol because residual solvent may react with gas. Solvents can produce serious physiological effects unless used in strictest compliance with the solvent manufacturer's safety recommendations. Wipe a thin film of Halocarbon grease on the threads of the V-notch extension chamber assembly.
  • Page 47 TYPE S10K GAS FEED SYSTEM Disconnect the operating water and solution lines. Disconnect the vacuum tube and as far as possible remove the water and solution lines to allow access to the injector throat (black with number) and tailway (white with letter). Unscrew the throat and tailway.
  • Page 48 TYPE S10K GAS FEED SYSTEM Renew the O-ring in the gas inlet connection. Reconnect the vacuum line to the injector. Check for tightness and function. 4.3.5 Cleaning the 19mm anti-syphon injector (Fig.9) NOTE: When removing O-rings, use a needle to pull them out. Do not damage the tightening surfaces.
  • Page 49 TYPE S10K GAS FEED SYSTEM Place the spring (Fig.8 (14)) on the clamping nut (18) and place together with the diaphragm assembly (19) into the body (9). Refit the upper body (9) and the union nut (21). Tighten slightly. Turn the gas inlet to the desired direction, ensure the two parts engage correctly and then tighten the union nut.
  • Page 50 TYPE S10K GAS FEED SYSTEM Unscrew the clamping nut from the valve seat. Renew the diaphragm, spring and the O-rings (16 and 21). NOTE: Renew the valve seat (17), every two years. Renew the clamping nut (24), every 5 years. Assemble together the diaphragm, valve seat, clamping nut and spring.

  • Page 51: Servicing The Vacuum Demand Valve

    TYPE S10K GAS FEED SYSTEM Shut down the gas feed system, evacuate all gas and release any pressure in the discharge line (see Section 3.2.4). Follow steps 3 to 14 in Section 4.3.6 if the upper section of the injector is also to be cleaned. Drain the operating and solution water lines.
  • Page 52 TYPE S10K GAS FEED SYSTEM Release any pressure build up in the solution delivery line (refer to WARNING in Section 2.7.4 of the main instruction manual). If need be protect against frost by draining the water supply and solution delivery pipelines. 4.4.2 Disconnecting the Vent Line WARNING: Any vertical section of the vent tube may contain chlorine...
  • Page 53 In general Evoqua Water Technologies recommend the following:- W3T292562 / WT.025.200.000.GE.IM.0615 0117...

  • Page 54: Adjusting The Automatic Plug Positioner

    Where customers prefer to carry out their own maintenance - training of personnel to a level whereby Evoqua Water Technologies will provide certification of their ability. Where customers prefer to use manufactures personnel - a Evoqua Water Technologies Service Engineer can carry out the service.
  • Page 55 TYPE S10K GAS FEED SYSTEM Preparation Switch off the mains supply to the positioner and to the limit switches and check to ensure that electrical isolation is complete. Disengage the positioner drive by pulling out the actuator knob. Remove the knob (use a 2 mm Allan key), unfasten the screws holding the cover, lift the side clips and remove the cover.

  • Page 56: Adjusting The Feedback Potentiometer

    TYPE S10K GAS FEED SYSTEM Move the connecting rod fully up and then 2 mm back. Turn the black cam wheel by turning the set screw (3) so far that both MAX switches (4) are switching. DO NOT LOOSEN or turn the whole cam wheel.
  • Page 57 Gas controls normally at high feed rates but not at low feed rates CAUSE REMEDY Demand valve not throttling properly Return vacuum demand valve to Evoqua Water (vacuum measured at demand valve Technologies outlet by connecting a tee and single...
  • Page 58 Air leak upstream of flowmeter (float Check vacuum line between valve and flow- spinning or free floating in tube) meter. If line is secure then return vacuum demand valve to Evoqua Water Technologies. 4.8.4 Float moves erratically with small changes to V-notch position CAUSE...
  • Page 59 TYPE S10K GAS FEED SYSTEM ILLUSTRATIONS W3T292562 / WT.025.200.000.GE.IM.0615 0117...
  • Page 60 TYPE S10K GAS FEED SYSTEM VACUUM PIPELINE (flexible tube) VACUUM PIPELINE (rpvc - optional) 4m x RP68-4484 (3/8" x 1/2" od flexible tube) 4m x RP68-4052 (1/2" x 5/8" od flexible tube) FLOWMETER (Fig 2A/B) VENT LINE (Fig.4) Tailway (see Hydraulic Data at rear of manual) MAIN VACUUM DEMAND...
  • Page 61 TYPE S10K GAS FEED SYSTEM VACUUM PIPELINE (See Fig.1A) FLOWMETER V-NOTCH (Fig.2A/B) PLUG HOUSING (Fig.3) BACK PLATE (Fig.3) VACUUM DEMAND VALVE VENT PLUG LINE POSITIONER MAIN (Fig.3) CYLINDER VALVE VACUUM PIPELINE CYLINDER INJECTOR (19 or 25 mm see Figs.6 to 9) TYPICAL WATER SUPPLY LINE APPLICATION MAIN...
  • Page 62 TYPE S10K GAS FEED SYSTEM PART No. DESCRIPTION ANM4122 W3T98099 Flowmeter, 75mm PXH.26482 W2T376757 'O' ring 2 P.59143 W2T11821 Orifice AAA9672 — Control knob APM4489 W2T11504 Housing P.44123 W2T16152 'O' ring ANI4501 W2T11500 Plug, 1/2" NPT 7 AUK3460 — Screw {Refer to Fig 12 {for different 10...
  • Page 63 TYPE S10K GAS FEED SYSTEM FIG.2A FLOWMETER ASSEMBLY (75mm) W3T292562 / WT.025.200.000.GE.IM.0615 0117...
  • Page 64 TYPE S10K GAS FEED SYSTEM PART No. DESCRIPTION ANM4127 W2T634587 Flowmeter, 125mm PXH.26482 W2T376757 'O' ring P.59143 W2T11821 Seal AAA9672 — Control knob AOK4485 W2T11502 Housing P.44123 W2T16152 'O' ring ANI4501 W2T11500 Plug, 1/2" npt 7 AUK3460 Screw {Refer to Fig 12 {for different 10 {connections...
  • Page 65 TYPE S10K GAS FEED SYSTEM FIG.2B FLOWMETER ASSEMBLY 125mm W3T292562 / WT.025.200.000.GE.IM.0615 0117...
  • Page 66 TYPE S10K GAS FEED SYSTEM PART No. DESCRIPTION AAA1085 W3T291485 S10k Gas Feeder, Auto 1 AMK5115 W2T11161 V-notch chamber 2 Variable V-notch plug (see Table below) PXH.39648 W2T14270 'O' ring 4 AMK4267 W2T11166 Connector tube U.24110 W3T292337 Elbow AOK4485 W2T11502 Flowmeter housing (5") AUK3460 — Screw AAA9672 —...
  • Page 67 TYPE S10K GAS FEED SYSTEM IMPORTANT: When ordering spare parts quote machine serial number with the full description and part number. TABLE of V -NOTCH PLUGS Range (Cl2/ Range Range V-notch plug V-notch plug V-notch plug SO2) (NH3) (CO2) Old Part New Part Old Part New Part...
  • Page 68 TYPE S10K GAS FEED SYSTEM PART No. DESCRIPTION AKG5549 W2T367045 O ring AAB1736 W2T10156 Seat AAB2291 W2T10012 Nipple AAA6225 W2T633350 Nipple (Ammonia only) ANM5366 W2T367090 Valve Stem APQ4110 W2T11229 Stem Spring AAB2294 W2T10010 Retainer AAA6831 W2T633398 Retainer (Ammonia only) 7 AAA6780 W2T633395 Universal yoke assy. AAB2058 W3T291627 Yoke Assembly (Ammonia Only) AAA6861...
  • Page 69 TYPE S10K GAS FEED SYSTEM PART No. DESCRIPTION AKG5549 W2T367045 O - ring AAB1736 W2T10156 Seat AKG5346 W2T11238 Nipple ANM5366 W2T367090 Stem APQ4110 W2T11229 Spring AIC5355 W2T11202 Retainer 7 U23016 W3T292335 Chlorine Institute yoke assy. P16191 W2T635486 Lead washer AAA7109 W3T167914 Filter (1.57 thk PTFE) 10 AAA7106 W3T167913...
  • Page 70 TYPE S10K GAS FEED SYSTEM 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...
  • Page 71 TYPE S10K GAS FEED SYSTEM 12 13 FIG.6 U.96273 - STANDARD 25mm INJECTOR W3T292562 / WT.025.200.000.GE.IM.0615 0117...
  • Page 72 TYPE S10K GAS FEED SYSTEM 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 73 TYPE S10K GAS FEED SYSTEM PART No. DESCRIPTION P.34374 W2T12043 Plug P.100363 — Union nut P.100355 — Union end P.100457 W3T172724 O-ring P100371 W3T172724 O-ring 3 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...
  • Page 74 TYPE S10K GAS FEED SYSTEM PART No. DESCRIPTION 1 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 —...
  • Page 75 TYPE S10K GAS FEED SYSTEM 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.10 INTERNAL ALARM SWITCH W3T292562 / WT.025.200.000.GE.IM.0615 0117...
  • Page 76 TYPE S10K GAS FEED SYSTEM PART No. DESCRIPTION 1 AAA2931 — Connector, 1/2" NPT x 1/2" NPT PXA96974 W3T169101 Tube adaptor, 1/4" NPT to 6 mm dia. PTFE tube 3 AAA2928 — Socket adaptor, 1/2" NPT x 1/2" plain AAA2502 W2T10203 Union nut AAA3479 W2T10192 'O' ring 5 AAA3453 — Connector, 1/2” NPT x 1/4” NPT RP9024426 W2T506980 Tube, 6mm dia.
  • Page 77 TYPE S10K GAS FEED SYSTEM RP684464 Vent hose 6m not included in kit The vent line should be run as detailed in section 2.6.2. S10k Gas Control Unit with direct mounted flowmeter and flexible hose to injector Parts Kit AAB5130 - 4kg/hr and Parts Kit AAA7419 - up to 4kg/hr above No Description...
  • Page 78 TYPE S10K GAS FEED SYSTEM RP684464 Vent hose 6m not included in kit The vent line should be run as detailed in section 2.6.2. S10k Gas Control Unit with remote mounted flowmeter and flexible hose to injector Parts Kit AAA7422 - Parts Kit AAB5136 - up to 4kg/hr 4kg/hr and above...
  • Page 79 TYPE S10K GAS FEED SYSTEM RP684464 vent hose 6m not included in kit The vent line should be run as detailed in section 2.6.2. Req'd for ½" nb pipework only S10k Gas Control U n i t w i t h d i r e c t mounted flowmeter and rigid pipework to the injector...
  • Page 80 TYPE S10K GAS FEED SYSTEM RP684464 vent hose 6m not included in kit The vent lines should be run as detailed in section 2.6.2. Req'd for ½" nb pipework only S10k Gas Control Unit with remote mounted flowmeter and rigid pipework to the injector Parts kit AAA7434 —...
  • Page 81 TYPE S10K GAS FEED SYSTEM S10k Gas Control switchover units with remote mounted f l o w m e t e r and flexible pipework to the injector RP684464 vent hose 6m not included in kit Parts Kit AAA7425 - Parts Kit AAB5133 - up to 4kg/hr 4kg/hr and above...
  • Page 82 TYPE S10K GAS FEED SYSTEM RP684464 vent hose 6m not included in kit The vent line should be run as detailed in section 2.6.2. Req'd for ½" nb pipework only S10k Gas Control switchover units with remote mounted flowmeter and rigid pipework to the injector Parts kit AAA7440—...
  • Page 83 TYPE S10K GAS FEED SYSTEM P89325 R3/4 x Rc1/4 REDUCING BUSH (2) FIG.13 GAS HEADERS (WAC1622) W3T292562 / WT.025.200.000.GE.IM.0615 0117...
  • Page 84 TYPE S10K GAS FEED SYSTEM FIG.13 GAS HEADERS (WAC1415) W3T292562 / WT.025.200.000.GE.IM.0615 0117...

  • Page 85: Optional Extras

    TYPE S10K GAS FEED SYSTEM PART No. DESCRIPTION AAB3656 W3T291649 Vacuum demand valve, (Universal yoke) AAB3647 W3T291647 Vacuum demand valve, (Chlorine Inst. yoke) 1 AKG5438 W2T11240 Front cover ARQ4529 W2T11513 Knob AAB1251 W2T9974 Pin dowel AAB2699 W2T9973 Operating lever pawl AMK5341 W2T11210 Operating lever P41078 W2T376033 Spring AAA9033 W2T633505 Plug 8 AAA1616 W2T11006...
  • Page 86 TYPE S10K GAS FEED SYSTEM Pressure Relief Valve See figs. 4 & 5 for part nos. apply a thin layer of grease before assembling E1596 FIG.14 VACUUM DEMAND VALVE (STANDARD) W3T292562 / WT.025.200.000.GE.IM.0615 0117...
  • Page 87 TYPE S10K GAS FEED SYSTEM PART No. DESCRIPTION AAB3653 W3T291648 Vacuum demand valve, (Universal yoke) AAB3671 W3T291651 Vacuum demand valve, (Chlorine Inst. yoke) 1 AMG4473 W2T11506 Front cover ARQ4529 W2T11513 Knob AAB1251 W2T9974 Pin dowel AAB2699 W2T9973 Operating lever pawl ALE4534 W2T11511 Operating lever P41078 W2T11511 Spring AAA9033 W2T633505 Plug 8 AAA1616 W2T11006...
  • Page 88 TYPE S10K GAS FEED SYSTEM See figs. 4 &5 for part nos. FIG.15 VACUUM DEMAND VALVE (SWITCHOVER) W3T292562 / WT.025.200.000.GE.IM.0615 0117...
  • Page 89 TYPE S10K GAS FEED SYSTEM Part No Description AOK4480 W2T11501 front housing standard 2+3+4 AOO5571 W2T11245 plate APQ4366 W2T11061 AQO4543 W2T11508 APQ5464 W2T11455 diaphragm (2-a) AAA1616 W2T11006 diaphragm transparent(gas side ) (2-a) AMK5553 W2T11346 o-ring (1-a) P51401 W2T15248 o-ring (1-a) ALI5542 W2T367059 o-ring (1-a)
  • Page 90 TYPE S10K GAS FEED SYSTEM Part No Description UXA96581 W3T169366 contact pressure gauge (optional) PN288 W2T636095 plug U94329 — elbow (option) U27486 W3T292344 union U24102 W3T292336 union Heater (optional, not shown): AAA5101 — heater element AAA5104 W2T506383 thermostat U XA96338 — cable with plug  for standard regulator (not switch-over) ...
  • Page 91 TYPE S10K GAS FEED SYSTEM WALLACE & TIERNAN A, D apply a thin layer of grease before assembling EXA 100291 cemented pos. 21 torque 21Nm tighten with Teflon tape Pressure Relief Valve FIG.16 VACUUM DEMAND VALVE (running nut) W3T292562 / WT.025.200.000.GE.IM.0615 0117...
  • Page 92 TYPE S10K GAS FEED SYSTEM FIG. 17 S10k DIRECT MOUNT CHLORINE VACUUM REGULA- TOR (No. 6 CONNECTION)
  • Page 93 TYPE S10K GAS FEED SYSTEM S10k Direct Mount Chlorine Vacuum Regulator (No. 6 Con- nection) Part no. Description Qty. W2T11347 O-ring 23.47 mm ID x 2.62 mm dia section W2T10156 S10k Vacuum regulator seat dia 1/2 W2T367090 S10k Vacuum regulator stem assembly W2T11229 S10k Vacuum regulator compression spring W3T373664...
  • Page 94 TYPE S10K GAS FEED SYSTEM FIG. 18 S10k DIRECT MOUNT SULPHUR DIOXIDE VACUUM REGULATOR (No. 10 CONNECTION)
  • Page 95 TYPE S10K GAS FEED SYSTEM S10k Direct Mount Sulphur Dioxide Vacuum Regulator (No. 10 Connection) Part no. Description Qty. W2T11347 O-ring 23.47 mm ID x 2.62 mm dia section W2T10156 S10k Vacuum regulator seat dia 1/2 W2T367090 S10k Vacuum regulator stem assembly W2T11229 S10k Vacuum regulator compression spring W3T373664...
  • Page 96 TYPE S10K GAS FEED SYSTEM FIG.17 EXTERNAL CONNECTION DIAGRAM (Drg.30-E-7662) W3T292562 / WT.025.200.000.GE.IM.0615 0117...
  • Page 97 TYPE S10K GAS FEED SYSTEM 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 4 kg/h, whilst the hydraulic data for the 1"...
  • Page 98 TYPE S10K GAS FEED SYSTEM HYDRAULIC DATA FOR ¾”-INJECTOR Part No. Throat Part No. No. Tailpiece Part No. Code PXE48961 W2T9768 PXD48962 W2T636231 PXG48961 W2T376755 PXE48962 W2T13677 PXJ48961 W2T16045 PXF48962 W2T16048 PXK48961 W2T15702 PXG48962 W2T15986 PXH48962 W2T15709 PXJ48962 W2T16046 Back Chlorine Injector Throat and Tailpiece Pressure " "...
  • Page 99 TYPE S10K GAS FEED SYSTEM Back Chlorine Injector Throat and Tailpiece Pressure " " 1000 " 1500 " 2000 " 3000 " 4000 " 5000 " Back Chlorine Injector Throat and Tailpiece Pressure " " 1000 " 1500 " 2000 " 3000 " 4000 " 5000 "...
  • Page 100 TYPE S10K GAS FEED SYSTEM Back Chlorine Injector Throat and Tailpiece Pressure " " 1000 " 1500 11.0 " 2000 12.4 " 3000 " 4000 10.5 " 5000 11.9 12.5 " Back Chlorine Injector Throat and Tailpiece Pressure " " 1000 10.4 " 1500 13.0 " 2000 13.5 "...
  • Page 101 TYPE S10K GAS FEED SYSTEM Back Chlorine Injector Throat and Tailpiece 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 14.5 " 5000 20.0 19.2 17.4...
  • Page 102 TYPE S10K GAS FEED SYSTEM Back Chlorine Injector Throat and Tailpiece Pressure 21.0 19.4 11.2 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 " W3T292562 / WT.025.200.000.GE.IM.0615 0117...
  • Page 103 TYPE S10K GAS FEED SYSTEM HYDRAULIC DATA FOR 1”-INJECTOR Part No. Throat No. Tailpiece Code Tailpiece Code PXE50094 W2T15729 PXC50093 W2T15731 PXK50093 W2T15723 PXF50094 W2T15729 PXD50093 W2T15719 PXL50093 W2T15725 PXG50094 W2T15727 PXE50093 W2T15728 PXH50094 W2T15722 PXF50093 W2T15717 PXJ50094 W2T15716 PXG50093 W2T15726 PXK50094 W2T15724 PXH50093 W2T15721...
  • Page 104 TYPE S10K GAS FEED SYSTEM Back Chlorine Injector Throat and Tailpiece Pressure " " 1000 " 1500 " 2000 " 3000 " 4000 " 5000 " 6000 " 8000 " 10000 Back Chlorine Injector Throat and Tailpiece Pressure " " 1000 " 1500 " 2000 " 3000 "...
  • Page 105 TYPE S10K GAS FEED SYSTEM Back Chlorine Injector Throat and Tailpiece Pressure " " 1000 " 1500 " 2000 " 3000 " 4000 10.5 " 5000 11.2 " 6000 " 8000 10.4 " 10000 11.8 Back Chlorine Injector Throat and Tailpiece Pressure " " 1000 " 1500 "...
  • Page 106 TYPE S10K GAS FEED SYSTEM Back Chlorine Injector Throat and Tailpiece Pressure 11.7 " 12.1 13.0 11.7 " 12.9 13.3 12.3 " 1000 14.3 13.4 12.7 12.3 11.4 12.3 " 1500 14.9 14.1 13.1 12.4 11.6 12.5 " 2000 15.8 14.6 13.9 12.8 11.7 13.1 11.0...
  • Page 107 TYPE S10K GAS FEED SYSTEM Back Chlorine Injector Throat and Tailpiece Pressure 11.2 17.9 " 18.2 18.4 19.2 " 18.9 18.8 19.8 19.8 " 1000 19.5 21.0 19.9 18.2 19.6 " 1500 20.0 18.2 20.1 " 2000 20.1 18.4 20.6 " 3000 20.3 18.6 20.0 "...
  • Page 108 TYPE S10K GAS FEED SYSTEM 11000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 6 7 8 9 10 Operating Water Pressure (bar overpressure) W3T292562 / WT.025.200.000.GE.IM.0615 0117...

  • Page 109: Replacing The Activated Carbon Filter

    TYPE S10K GAS FEED SYSTEM 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 110 TYPE S10K GAS FEED SYSTEM Dispose of the ceramic rings and the activated carbon (e.g. as commercial waste). 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.
  • Page 111 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 112 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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