For PVC-U Imperial (Inch)-sized Piping Systems 1. Scope 2 .

- System Specification All pneumatically actuated ball valves shall have the following accessories available: Pilot valve remote or direct mounted in voltages 24VDC/AC, 110VAC, 230VAC Positioner Type DSR 500-3 Limit switch kits Ag-Ni, Au, NPN, PNP Stroke limiter Manual override for all sizes up to 4” AS Interface control module with incorporated position feedback and asolenoid pilot valve6.2 Diaphragm Valves6.2.1 Manual Diaphragm Valves6.2.1.1 Manual Diaphragm Valves 1/2” to 2”All PVC-U diaphragm valves, Imperial (inch-) sized 1/2” – 2”, shall be either: Type 514 (true double union design, 1/2” – 2”) Type 517 (flange design, 1/2” – 2”)All diaphragm valves shall be manufactured by Georg Fischer Piping Systems inaccordance with EN ISO 16138. The upper body shall be PPGF (polypropylene glassfibre reinforced) connected to the lower body with a central union avoiding exposedscrews. A two coloured position indicator integrated into the hand wheel must bepresent to determine diaphragm position. The hand wheel shall have an integratedlocking mechanism. Diaphragms are to be EPDM, FPM, NBR, PTFE with EPDM orFPM backing diaphragm.Following options shall be available: PN16 pressure rating Electrical feedback unit with either Ag-Ni or AU contacts Pressure proof housingThe diaphragm valve shall have following KV values:dDNKV[inch] [mm] [l/min @ P 1 bar]1/2151253/4202711254811 1/4 327591 1/2 4012632501728System Specification PVC-U BS InchSchaffhausen, January 2015page 7/ 23

- System Specification 6.2.1.2 Manual Diaphragm Valves 2-1/2” to 4”All PVC-U diaphragm valves, Imperial (inch-) sized 2-1/2” – 4”, shall be Type 317(flanged design). All diaphragm valves shall be manufactured by Georg FischerPiping Systems in accordance with EN ISO 16138. The upper body shall be PPGF(polypropylene glass fibre reinforced) connected to the lower body with exposedstainless steel bolts. A position indicator integrated into the hand wheel must bepresent to determine diaphragm position. Diaphragms are to be EPDM, FPM, NBR,or PTFE with EPDM or FPM backing diaphragm.6.2.2 Pneumatic Diaphragm Valves6.2.2.1 Pneumatic Diaphragm Valves 1/2” to 2”All PVC-U diaphragm valves, Imperial (inch-) sized 1/2” – 2”, shall be either: true double union design, 1/2” – 2” flange design, 1/2” – 2”All diaphragm valves shall be manufactured by Georg Fischer Piping Systems inaccordance with EN ISO 16138. The upper body shall be connected to the lowerbody with a central union nut avoiding exposed screws.Diaphragms are to be EPDM, FPM, NBR, PTFE with EPDM or FOM backingdiaphragm.The diaphragm valve shall have following KV values:d[inch]1/23/411 1/41 1/22DN[mm]152025324050KV[l/min @ P 1 bar]1252714817591263 (960*)1728 (1181*)* DIASTAR SixPneumatic actuators shall be Georg Fischer Piping Systems Type DIASTAR andshall be available as DIASTAR Six for PN up to 6bar, DIASTAR Ten for PN up to 10bar, DIASTAR TenPlus of PN up to 10bar both sides, DIASTAR Sixteen for PN up to 16barSystem Specification PVC-U BS InchSchaffhausen, January 2015page 8/ 23

- System Specification The mode of operation shall be fail safe close (FC), fail safe open (FO) and doubleacting (DA). The valves shall have an integrated optical position indicator. Actuatorhousing shall be made of PPGF (polypropylene glass fibre reinforced). Actuators withFC mode shall contain a preloaded galvanised steel spring assembly to ensure safeactuator operation and maintenance.The actuator DIASTAR Ten, DIASTAR TenPlus and DIASTAR Sixteen shall havefollowing accessories available: Solenoid pilot valve remote or direct mounted in voltages 24VDC/AC,110VAC, 230VAC Positioner Type DSR 500-1 Feedback with following limit switches Ag-Ni, Au, NPN, PNP, NAMUR Stroke limiter & emergency manual override ASI controller6.2.2.2 Pneumatic Diaphragm Valves 2-1/2” to 4”All PVC-U diaphragm valves, Imperial (inch)-sized 2-1/2” – 4”, shall be flangeddesign. All diaphragm valves shall be manufactured by Georg Fischer PipingSystems in accordance with EN ISO 16138. The upper body shall be connected tothe lower body with exposed stainless steel bolts. Diaphragms are to be EPDM,FPM, NBR, or PTFE with EPDM or FPM backing diaphragm.Pneumatic diaphragm actuators shall be Georg Fischer Piping Systems TypeDIASTAR Type 025. The mode of operation shall be fail safe close (FC), fail safeopen (FO) and double acting (DA). The valves shall have an integrated opticalposition indicator. Actuator housing shall be made of PPGF (polypropylene glassfibre reinforced). Actuators with FC mode shall contain a preloaded galvanised steelspring assembly to ensure safe actuator operation and maintenance. The actuatorDIASTAR 025 shall have following accessories available: Solenoid pilot valve remote or direct mounted in voltages 24VDC/AC,110VAC, 230VAC Positioner Type DSR 500-2 Feedback with following limit switches AgNi, Au, NPN, PNP, NAMUR Stroke limiter & emergency manual override ASI ControllerSystem Specification PVC-U BS InchSchaffhausen, January 2015page 9/ 23

- System Specification 6.3 Butterfly ValvesAll PVC-U butterfly valves, Imperial (inch-) sized DN 2" – 16", shall be Georg FischerPiping Systems Type 567 / 563 (wafer type) or 568 / 578 (lug type) with a doubleeccentric disc design manufactured by Georg Fischer Piping Systems in accordancewith EN ISO 16136. Seals shall be available in both EPDM and FPM. The leverhandle shall be lockable in increments of 5 degrees. There shall always be six teethengaged between the ratchet and the index plate to ensure accurate and safepositioning of the lever. There shall be the option of fine adjustment by use of aspecific hand lever, allowing the disc to be exposed at any angle between 0 und 90 .As an option, the hand lever shall be lockable. The hand lever shall be manufacturedof high strength PPGF (polypropylene glass fibre reinforced). The option of anintegrated electric position indicator shall be available. Optional the valves can beactuated by gear box with hand wheel. The electric position indicator shall beintegrated into the mounting flange. Butterfly valves shall have low actuation torqueto enable easy operation. All butterfly valves Type 567 / 568 / 578 manufactured byGeorg Fischer Piping Systems are designed for a nominal pressure rate of 10bar. Allbutterfly valves Type 563 are designed for a nominal pressure rate of 4bar.6.3.1. Electric Butterfly ValvesElectric actuators shall be Georg Fischer Piping Systems Types EA31 or EA42dependent on valve size. They shall be manufactured by Georg Fischer PipingSystems in accordance with EN 61010-1, as per the above specifications. Actuatorhousing shall be made of PPGF (polypropylene glass fibre reinforced), flameretardant and feature external stainless steel screws.All electric actuators shall have an integrated emergency manual override andintegrated optical position indication. All electric actuator types shall have thefollowing accessories available: Fail-safe unit Heating element Cycle extension, monitoring, and counting Motor current monitoring Position signalisation Positioner Type PE25 Limit switch kits AgNi, Au, NPN, PNP Manual override AS-Interface Plug ModulSystem Specification PVC-U BS InchSchaffhausen, January 2015page 10/ 23

- System Specification 6.3.2. Pneumatic Butterfly ValvesPneumatic actuators shall be Georg Fischer Piping Systems Types PA 35 (Imperial(inch)-sized 2” – 2-1/2”), PA40 (Imperial (inch)-sized 3” inch only), PA45 (Imperial(inch)-sized 4” – 5”), PA55 (Imperial (inch)-sized DN 6” – 8”), PA60 (Imperial (inch)sized 8” FC), PA65 (Imperial (inch)-sized 10” FC) PA70 (Imperial (inch)-sized 12”FC). They shall be supplied by Georg Fischer Piping Systems. Pneumatic actuatorsshall be available as fail safe close, fail safe open and double acting and have anintegrated optical position indication. Actuator housing shall be made of hardenedanodized aluminium. Actuators shall contain integrated Namur interfaces for the easymounting of positioners, limit switches and accessories. All pneumatically actuatedbutterfly valves shall have the following accessories available: Solenoid pilot valve remote or direct mounted in voltages 24VDC/AC,110VAC, 230VAC Positioner Type DSR 500-3 Feedback with following limit switches AgNi, Au, NPN, PNP, NAMUR Stroke limiter & emergency manual override ASI-controller6.4 Angle Seat ValvesAll PVC-U Angle Seat Valves, Type 300 shall be manufactured by Georg FischerPiping Systems according to EN ISO 21787 and overall length according to EN 558,available in Imperial (inch)-sizes 3/8” – 3”, with an internal piston cone end in PE orPTFE, and solvent cement spigots. The Angle Seat valves manufactured by GFPiping Systems are designed for a nominal pressure rate of 10bar.6.5 Check Valves6.5.1 Cone Check ValvesAll PVC-U Cone Check Valves, according to EN ISO 16137, Imperial (inch)-sized3/8” – 4”, shall be Type 561 / 562 true double union design. Seals shall be EPDM orFPM, FFPM can be an option. Union bushes shall have a left hand thread to preventpossible unscrewing when threaded end connectors are removed from pipe. Thisvalve shall be suitable for mounting in a vertical and horizontal position. Type 562shall be equipped with a spring made of stainless steel (V2A) to allow positionindependent installation. The valves are designed for a nominal pressure of 16bar.Type 561 shall be leakproof from a water column of 2m (0.2bar). Type 562 shall beleakproof from a water column of 1m (0.1bar)System Specification PVC-U BS InchSchaffhausen, January 2015page 11/ 23

- System Specification 6.5.2 Angle Seat Check ValvesAll PVC-U Angle Seat Check Valves, Type 303 shall be manufactured by GeorgFischer Piping Systems according to EN ISO 16137 and overall length according toEN 558-1 available in Imperial (inch)-sized 3/8” – 3” with EPDM or FPM seals andwith solvent cement spigots. The Angle Seat Check Valves shall be leakproof from awater column of 2m for EPDM and 3m for FPM seals as supplied by Georg FischerPiping Systems. The Angle Seat Check valves manufactured by Georg FischerPiping Systems are designed for a nominal pressure rate of 10bar.6.5.3 Wafer Check ValvesAll PVC-U Wafer Check Valves shall be Georg Fischer Piping Systems Type 369,Imperial (inch)-sized 1-1/4” – 12”. The minimum water column of 2 m is required forsealing. They must be equipped with a spring (either in 316 stainless steel orHasteloy C) guaranteeing closure in all installation positions. Attention: A stabilizingpipe zone of at least 5 times nominal diameter (DN) (recommended 10 times nominaldiameter) before and after the wafer check valve should be provided.6.6 Pressure Regulating ValvesPressure ranges for all PVC-U pressure regulating valves as supplied by GeorgFischer Piping Systems are the following: Imperial (inch)-sized 3/8” – 2"max. 10bar Imperial (inch)-sized 2-1/2” – 3”max. 6bar Imperial (inch)-sized 4”max. 4bar6.6.1 Pressure Reducing ValvesAll PVC-U pressure reducing valves, manufactured by Georg Fischer PipingSystems, reduce the pressure within the system to a pre-set value. By using thedifferential pressure, the pressure reducing valve adjusts itself to the set workingpressure. The outlet pressure (working pressure) is not directly related to the inletpressure. If the outlet pressure increases above the set value, the diaphragm is liftedagainst the spring force. If the outlet pressure falls below the set value, thediaphragm is pressed down by the spring force. The pressure reducing valve beginsto close/open until a state of equilibrium is re-established; in other words, the outletpressure remains constant irrespective of an increasing or decreasing inlet pressure.System Specification PVC-U BS InchSchaffhausen, January 2015page 12/ 23

- System Specification Following types and sizes are available: Type 582, compact Pressure Reducing Valve, Imperial (inch)-sized 3/8” – 2"Features:-Metal free central housing union nut-Set pressure selectable 0.5 - 9 bar or 0.3 – 3 bar-Manometer optional-Manometer assembly possible on both sides-Selection of direct manometer assembly or with gauge guard-Possibility to show either inlet or outlet pressure-Injection moulded directional arrow for direction of flow-Threaded inserts for assemblyType V82, Pressure Reducing Valve with an integrated manometer, Imperial(inch)-sized 2-1/2” – 4”6.6.2 Pressure Retaining ValvesAll PVC-U pressure retaining valves, manufactured by Georg Fischer PipingSystems, serve to keep the working or system related pressures constant, to balanceout pressure pulsation, and to reduce pressure peaks in chemical process systems.If the inlet pressure rises above the set value, the pressurized valve piston is liftedagainst the spring force. Consequently, the valve opens and there is a reduction ofpressure through the outlet pipe. The valve closes as soon as the inlet pressure sinksbelow the pre-set spring tension.Following types and sizes are available: Type 586, compact Pressure Retaining Valve, Imperial (inch)-sized 3/8” – 2"Features: -Metal free central housing union nut-Set pressure selectable 0.5 - 9 bar or 0.3 - 3 bar-Manometer optional-Manometer assembly possible on both sides-Selection of direct manometer assembly or with gauge guard-Possibility to show either inlet or outlet pressure-Injection moulded directional arrow for direction of flow-Threaded inserts for assemblyType V86, Pressure Retaining Valve, Imperial (inch)-sized 2-1/2” – 4”System Specification PVC-U BS InchSchaffhausen, January 2015page 13/ 23

- System Specification 6.7 Direct-acting Solenoid ValvesDirect-acting solenoid valves as supplied by Georg Fischer Piping Systems serve toregulate and control fluids, if no compressed air is available or not wanted. They areused for diverse functions, e.g. opening, shutting, dosing, distribute and mixing. Themedium flow is switched directly by the armature moved by the magnetic force.Safety position shall be available.Following type and sizes are available: Type 157, sizes DN4-8 Type 160/161, sizes DN10-206.8 Servo-assisted Solenoid ValvesServo-assisted solenoid valves as supplied by Georg Fischer Piping Systems serveto regulate and control fluids, if no compressed air is available or unwanted. They areused for miscellaneous functions, e.g. opening, shutting, dosing, distributing andmixing. Opening large orifices using the direct-acting method would requireenormous and expensive coils. Servo assisted valves use the power of the fluid toopen the flow channel by controlling a small pilot channel to alter the forces on alarger main seal. A minimum differential pressure of 0.5bar is required to fully openthe valve.Following type and sizes are available: Type, 165, sizes DN10-506.9 Ventilating- and Bleed ValvesAll PVC-U Ventilating- and Bleed valves shall be Georg Fischer Piping System type591. Dimensions 1/2” – 4” are with pressure rating PN16. They shall be equippedwith a PP-H floater with density of 0.91 g/cm3.6.10 Ventilating ValvesAll PVC-U Ventilating Valves shall be GF Piping System type 595. Dimensions 1/2” –4” are with pressure rating PN16. They shall be equipped with a coated stainlesssteel spring with minimal opening pressure (10-80 mbar).7. Solvent Cement & CleanerFor adhesive jointings, PVC-U cement with gap-filling adhesives must be used forsolvent cementing. Georg Fischer Piping Systems recommends the Henkel cementsystem TANGIT PVC-U for all PVC-U solvent cement joints. All specifications arebased on using TANGIT PVC-U, including strength and chemical resistance. For allother cements please refer to the manufacturers’ instructions.System Specification PVC-U BS InchSchaffhausen, January 2015page 14/ 23

- System Specification PVC-U TANGIT contains app. 20% PVC-U, dissolved in a blend of solvents. Thesolvents soften and macerate the edges of the surfaces they are applied to. Once thesolvents have evaporated, they leave a homogenous joint with the same mechanical,thermic and chemical properties as of the PVC-U pipe system.The jointing surfaces of pipe and fitting must be clean and free of grease. They mustbe cleaned with TANGIT cleaner.For chemical concentrations 70% sulphuric acid; 10% chromic acid, 25%hydrochloric acid; 20% nitric acid; sodium hypochlorite 6% active chlorine, 5%hydrogen peroxide and hydrofluoric acid in any concentration, subject to theapplication and operating conditions, Dytex solvent cement and Dytex Cleaning forPVC-U, manufactured by Henkel, must be used in accordance with the instruction ofHenkel.8. Measurement & Control / InstrumentationThe following parameters can be measured (Sensors), indicated and/ or transmitted(transmitters) to PLC, PC and other Data Acquisition Systems. All products complywith the CE erUltrasonicHydrostaticUltrasonic ContinousSwitchesGlas electrodesContactPiezoresistivePt1000Compatible liquids (*)clean liquidsclean liquidscontaminated liquidsclean, ultra pure liquidsall liquidsall liquidsall liquidsall liquidsall liquidsall liquidsall liquids(*) please check first the sensors limitations in material, pressure and temperature (data sheet) and chemicalresistance list8.1 SensorsThe sensors listed hereafter will transfer the measured value to a Georg FischerPiping Systems Transmitter, to indicate the measured value and allowing simplecalibration and maintenance of the devices. Alternatively the measured values of thesensors can be sent directly to a PLC, PC or other local made electronics usingeither an analogue signal (4-20 mA, open collector or sinusoidal voltage) or a digitalsignal called S3L (Georg Fischer Piping Systems Signet proprietary serial signal).System Specification PVC-U BS InchSchaffhausen, January 2015page 15/ 23

- System Specification 8.1.1 Installation FittingsDepending on the sensor type, special installation fittings shall be used forconnection to the pipeline: Installation T-Fitting 1/2” – 2” with double true union andClamp-On Saddle 3” – 6”. Sensor thread connection for flow- and pH-sensors shallbe 1 ¼“ NPSM. For all further sensors standard adaptor sockets or nipples with ½",¾" ISO, or ¾" NPT thread shall be used.8.1.2 Flow sensors8.1.2.1 Paddlewheel sensors515 and 525 sensors:All sensors of this family are “sinusoidal” sensors. This sensor from Georg FischerPiping Systems Signet requires no external power source to produce a signal.Internal to the body of the sensor is a wire coil which when excited by the rotorassembly produces a small sinusoidal signal. The rotor assembly consists of fourpaddles; inserted into each of the paddles of the rotor are magnets. As liquid flowspast the rotor assembly it rotates each of the four paddles produces a sine wave

* For detailed information please consult the GF Piping Systems online catalogue For more detailed physical properties and product pressure – temperature curves, please consult the Georg Fischer Piping Systems Planning Fundamentals on the Georg Fischer Piping Systems website. 2.4 Approvals / Acceptance / Conformance