PN10/16 & PN25 Ballcentric Plug Valve

PN10/16 & PN25 Ballcentric Plug Valve Engineering Creative Solutions for Fluid Systems Since 1901

A Tradition of Excellence With the development of the first rubber seated butterfly valve more than 70 years ago, the Henry Pratt Company became a trusted name in the flow control industry, setting the standard for product quality and customer service. Today Pratt provides the following range of superior products to the water, wastewater and power generation industries. Butterfly Valves: from DN100 to DN4100 (4" to 162") Rectangular Valves: from 300mm x 300mm to 4270mm x 4877mm (1' x 1' to 14' x 16') Ball Valves Rubber Seated: from DN100 to DN 1500 (4" to 60") Metal Seated: from DN150 to DN1200 (6" to 48") Plug Valves: from DN80 to DN1800 (3" to 72"), 3 ways Hydraulic Control Systems Valve Controls Energy Dissipating Valves and Fixed Energy Dissipaters Cone Valves Check Valves A Commitment to Meeting The Customers Needs Henry Pratt valves represent a long-term commitment to both the customer and to a tradition of product excellence. This commitment is evident in the number of innovations we have brought to the industries we serve. In fact, the Henry Pratt Company was the first to introduce many of the flow control products in use today, including the first rubber seated butterfly valve, one of the first nuclear N-Stamp valves, and the bonded seat butterfly valve. Innovative Products For Unique Applications Though many of the standard valves we produce are used in water filtration and distribution applications, Pratt has built a reputation on the ability to develop specialized products that help customers to meet their individual operational challenges. Creative Engineering for Fluid Systems Pratt s ability to provide practical solutions to complex issues is demonstrated by the following case histories. Earthquake Proof Valves Pratt designed and manufactured hydraulically actuated valves for a water storage application so that the valves would automatically operate in the event of earthquakes. This lead to the development of a valve that will withstand acceleration forces of up to 6g s. Custom Actuation/Isolation Valves Pratt designed and manufactured valves that would isolate a working chamber in the event of a nuclear emergency during the decommissioning of armed nuclear warheads. The valves were able to close in a millisecond using specially designed Pratt electro-pneumatic actuators. Valves Designed for Harsh Environments Pratt designed and manufactured a DN3600 (144") diameter butterfly valve for the emergency cooling system at a jet engine test facility. The valve was designed to supply water to help dissipate the tremendous heat generated by the engines during testing. Through experience, commitment and creative engineering, Pratt is uniquely suited to provide superior products for our customers special needs. For more information, contact our corporate headquarters in Aurora, Illinois. II Henry Pratt Company

Ballcentric Plug Valve The Henry Pratt criteria of quality, reliability, safety and value are embodied in the Ballcentric Plug valve, setting higher standards for dependable performance with excellent features achieved by the utilization of the very latest design and manufacturing techniques. n Computer Aided Design n High integrity casting n CNC Manufacturing delivers consistent sizes on all components All complemented by a rigorous Quality Control System Body Conforming to AWWA C504 wall thickness, the Ballcentric plug valve body casting is in ASTM A126 CL B cast iron or ASTM A-536 65-45-12 ductile iron using high pressure molding techniques. End Connections Fig 101 Flanges have flat faces and are dimensionally in accordance with ANSI Class 125 but drilled to BS EN 1092-2 PN16. Fig 102 Flanges have raised faces and are dimensionally in accordance with ANSI Class 250 but drilled to BS EN 1092-2 PN25. Flanges drilled to BS EN 1092-2 PN10, BS 10 Tables D&E and ANSI Class 125 are available. Grooved ends to meet AWWA C-606 for ductile or steel pipe and mechanical joints to AWWA C111 (ANSI A21.11) are available. Seat The Ballcentric plug valve incorporates as standard, on DN80 and larger, a welded 99% nickel seat for corrosion and erosion resistance specially profiled for low torque and extended seat life. An alternative corrosion resistant epoxy seat is available for general service duties. Bearings The plug rotates in permanently lubricated 316 grade stainless steel bearings, located in the body and bonnet, along with upper and lower PTFE thrust washers, which ensure consistently low operating torque. Plug Supported on integral trunnions, the plug face is covered with a elastomer that is moulded DN65-DN1000 and vulcanized on DN1200 and larger to the casting providing tight shut off even under vacuum conditions. High integrity corrosion-free sealing is achieved by a variety of abrasion resistant elastomers which protect the plug right up to the trunnions. When assembled, the light compression of the elastomers onto PTFE thrust washers, prevents entry of abrasive materials into the bearings. Bonnet Seal Superior O ring sealing with metal/metal contact means lower bolting stresses compared with compression gaskets. Flow The port design (round on DN65-DN300 and rectangular on DN350 and larger) with streamlined internal contours gives high capacity straight through flow in the full open position, reducing turbulence and pressure drop and the effect of erosive media. Handling of sludges and slurries is therefore enhanced. Interchangeable Common face to face dimensions with wedge gate valves (DN65-DN300) enables the tight shut-off rotary Ballcentric plug valve into existing systems without pipeline modifications. Travel Stops Adjustable open and closed travel stops are fitted as standard on both wrench and gear operated Ballcentric plug valves. Stem Seal High integrity sealing by combining the advantages of a resilient and abrasion resistant U-Cup seal. From vacuum to high pressure, the self-adjusting sealing system (per AWWA C504) gives positive, trouble-free service and is retained independently of the plug stem or external torque device. Henry Pratt Company 1

n Valve in closed position for bubble tight shut-off n Normal flow direction gives pressure assisted sealing n Torques are low even in reverse flow. n Plug rotates away from the seat for instant opening n Seat wear and operating torque reduced n No further seat contact until valve is closed again n Design of Ballcentric plug valve allows modulating control over the full 90 travel n Ideally suited for balancing service n Standard rotary valve provides control and tight shut off in one valve n Plug is out of flow path when fully open n Straight through, uninterrupted smooth flow n Round port reduces turbulence and erosion, lowers pumping costs and can be pigged to clean the pipeline Installation The Ballcentric plug valve is suitable for flow and shut-off in either direction. Seat end downstream is the preferred orientation and any reverse flow requirement should be stated at the time of order. For use on fluids with suspended solids, installation with the seat upstream and the valve stem horizontal is recommended with, plug rotation to the top of the valve will ensure smooth operation. In-Line Maintenance In the unlikely event of gland leakage, the stem seals can be easily replaced without removing the bonnet. Access to the body for cleaning or inspection does not require removal from the line. Modular Construction Design of the bonnet and stem allows for on-site adapatation of gear operators, power actuators, or extension devices on to standard valves. Conversion can be easily undertaken without removing the valve bonnet, thereby minimizing downtime. Power Operation Pneumatic, electric or hydraulic operation is available, complete with accessories such as limit switches, solenoid valves and positioners when required 2 Henry Pratt Company

Installation Options The type of materials carried in the pipeline and the location of the valve determine the correct installation orientation: Liquid without Suspended Solids Valve may be installed with plug shaft vertical or horizontal Downstream Upstream Sectional Front Elevation Seat Side Flow Flow Valve shown with plug shaft horizontal and seat DOWNSTREAM of flow Seat side indication on flange Seat Side For vertical pipe installations install with the seat DOWNSTREAM Upstream Flow Suspended Solids and Dirty Gases Seat Side Seat Side Sectional Front Elevation Flow Flow SHUT Install valve with the plug facing upstream. Ensure the plug rotates UPWARDS to the fully open position thus avoiding the plug sweeping through settled debris. OPEN Plug shown in the full open position avoiding settled debris. Install valve with seat facing DOWNSTREAM of the flow Seat Side For pump isolation service install the discharge valve with the seat DOWNSTREAM and with the plug rotating to the upper position for horizontal pipe installations Flow For pump isolation service install the discharge valve with the seat downstream from the pump and with the plug rotating to the top of the pipeline in the open position. Henry Pratt Company 3

Materials of Construction 14 19 16 6 10 11 13 13 12 13 13 9 4 2 18 19 13 17 15 3 8 6 5 1 5 7 Item Component Material 1 BODY CAST IRON A126 CLASS B 2 PLUG DUCTILE IRON ASTM A536 RUBBER COATED 3 COVER CAST IRON A126 CLASS B 4 TORQUE COLLAR DUCTILE IRON ASTM A536 5 JOURNAL BEARING ST.STEEL - ANSI 316 6 THRUST WASHER PTFE 7 O RING RUBBER AS PLUG 8 U CUP SEAL RUBBER AS PLUG 9 WASHER BRASS - ASTM B-138-675 10 SNAP RING - INTERNAL SPRING STEEL 11 CLOSED STOP STEEL (ZINC PLATED) 12 LOCKING WASHER STEEL 13 NUT STEEL (ZINC PLATED) 14 OPEN STOP STEEL (ZINC PLATED) 15 SETSCREW STEEL (ZINC PLATED) 16 SETSCREW STEEL (ZINC PLATED) 17 TORQUE BOLT STEEL (ZINC PLATED) 18 TRAVEL STOP STEEL 19 WASHER STEEL 4 Henry Pratt Company

Elastomers available for Ballcentric Valve Natural rubber is also available. n Nitrile A general purpose material sometimes referred to as BUNA-N or HYCAR with a -10 C to 100 C temperature range. Used on sewage, water, hydrocarbon and mineral oils. n EPDM An excellent polymer for use on chilled water through to LP steam applications having a temperature range of -10 C to 120 C. Resistance to many acids, alkalies, detergents, phosphate esters, alcohols and glycols is an added benefit. n Neoprene This versatile material shows outstanding resistance to abrasion and ozone. Chemical resistance to a wide range of petroleum based products and dilute acids and alkalies. Temperature range -10 C to 100 C. n Viton Retention of mechanical properties at high temperature is an important feature of this elastomer: temperature range is -10 C to 200 C. It also has excellent resistance to oils, fuels, lubricants and most mineral acids and aromatic hydrocarbons. PRESSURE RATING DRILLING PRESSURE DN300 and smaller PN16 16 bar DN350 to DN600 PN16 16 bar DN700 and larger PN16 10 bar DN300 and smaller PN25 25 bar DN350 to DN500 PN25 16 bar DN600 and larger PN25 10 bar Body Hydrotest = 1.5x of rated pressure Seat Test = 1.1x of rated pressure 100 Series Ordering Information Valve Types... Designation PN10/16 Flanged... 101 PN25 Flanged... 102 Seat Nickel...N Epoxy...E Elastomer Trim EPDM...0 Nitrile (Buna)...1 Viton...2 Neoprene...3 Natural...4 Gear Operators Buried Gear with 50mm Nut...BG Above Ground Gear with Indicator and Handwheel...AG Memory Stop Gearbox with Handwheel...MG Example: 0400-101N3PN16AG DN100 PN16 Flanged with Nickel Seat, Neoprene Elastomer and Above Ground Gear with Indicator and Handwheel Elastomer Selection Chart The chart below is to assist in the selection of elastomers for some common fluids. It doesn t mean other elastomers are not suitable within varying limits. Temperature, concentration, and mixture all affect chemical attack. If there is any doubt regarding compatibility, specific conditions should be referred to engineering for recommendations. The chart below is to serve as a guide only. Note: Suitability of an elastomer for a particular service does not necessarily indicate that the pressure envelope material is suitable. Service Elastomer Average Useful Temp Range Acetone EPDM 10 C to 120 C Air EPDM 10 C to 120 C Air w/ Oil Nitrile 10 C to 100 C Alcohol, Amyl EPDM 10 C to 120 C Alcohol, Aromatic Viton 10 C to 200 C Alcohol, Butyl Neoprene 10 C to 100 C Alcohol, Denatured Nitrile 10 C to 100 C Alcohol, Ethyl EPDM 10 C to 120 C Alcohol, Grain Nitrile 10 C to 100 C Alcohol, Isosproply Neoprene 10 C to 100 C Alcohol, Methyl EPDM 10 C to 120 C Ammonia, Anhydrous Neoprene 10 C to 100 C Ammonium, Nitrate EPDM 10 C to 120 C Ammonia, Water EPDM 10 C to 120 C Animal Fats Nitrile 10 C to 100 C Black Liquor EPDM 10 C to 120 C Blast Furnace Gas Neoprene 10 C to 100 C Butane Nitrile 10 C to 100 C Bunker Oil C Nitrile 10 C to 100 C Calcium Chloride EPDM 10 C to 120 C Carbon Dioxide EPDM 10 C to 120 C Carbon Monoxide (Cold) Neoprene 10 C to 100 C Carbon Monoxide (Hot) Viton 10 C to 200 C Carbon Tetrachloride Viton 10 C to 200 C Service Elastomer Average Useful Temp Range Caustic Soda EPDM 10 C to 120 C Cement Slurry EPDM 10 C to 120 C Copper Sulphate EPDM 10 C to 120 C Creasote (Coal) Nitrile 10 C to 100 C Coal Slurry Nitrile 10 C to 100 C Diesel Fuel No.1 Nitrile 10 C to 100 C Diethylene Glycol EPDM 10 C to 120 C Ethylene Glycol EPDM 10 C to 120 C Fatty Acid Nitrile 10 C to 100 C Fuel Oil No. 2 Nitrile 10 C to 100 C Fertilizer Liquid (H4N2O2) EPDM 10 C to 120 C Gasoline Keg Nitrile 10 C to 100 C Gas Natural Nitrile 10 C to 100 C Glue Animal Nitrile 10 C to 100 C Green Liquor EPDM 10 C to 120 C Hydraulic Oil Nitrile 10 C to 100 C Hydrogen Nitrile 10 C to 100 C JP4 JP5 Viton 10 C to 200 C Kerosene Nitrile 10 C to 100 C Ketone EPDM 10 C to 120 C Lime Slurry EPDM 10 C to 120 C Methane Nitrile 10 C to 100 C Methyl Ethyl Ketone EPDM 10 C to 120 C Naptha (Berzin) Nitrile 10 C to 100 C Service Elastomer Average Useful Temp Range Oil Animal Nitrile 10 C to 100 C Oil Mobil Therm Light Viton 10 C to 200 C Oil Mobil Therm 600 Viton 10 C to 200 C Oil Mobil Therm 603 Nitrile 10 C to 100 C Oil Lubricant Nitrile 10 C to 100 C Oil Vegetable Nitrile 10 C to 100 C Paint Latex Nitrile 10 C to 100 C Phosphate Ester EPDM 10 C to 120 C Propane Nitrile 10 C to 100 C Rape Seed Oil EPDM 10 C to 120 C Sewage (w/oils) Nitrile 10 C to 100 C Sodium Hydroxide 20% EPDM 10 C to 120 C Starch EPDM 10 C to 120 C Steam 149 C EPDM 10 C to 120 C Stoffard Solvent Nitrile 10 C to 100 C Sulphuric Acid 10%50% Neoprene 10 C to 100 C Sulphuric Acid 100% Viton 10 C to 200 C Trichloroethylene Dry Viton 10 C to 200 C Triethanol Amine EPDM 10 C to 120 C Varnish Viton 10 C to 200 C Water, Fresh EPDM 10 C to 120 C Water, Salt EPDM 10 C to 120 C Xylene Viton 10 C to 200 C Henry Pratt Company 5

Flanged End Fig. 101 PN10/16 HANDWHEEL DIA 'G' D A E G C B A E B C DIMENSIONS in (mm) FLANGED END FIG. 101 PN10/16 NOMINAL VALVE SIZES (DN) 65 80 100 125 150 200 250 300 A 178 191 229 254 279 343 406 483 B 20 22 24 26 26 30 32 32 C 191 203 229 254 267 292 330 356 D 157 157 184 211 213 271 E 89 95 114 146 146 194 226 254 F 137 142 160 192 192 245 295 338 G 152 152 152 152 152 305 305 305 WEIGHT in kg (approx.) 14 18 32 48 52 86 156 200 DN250 & above have gear operators as standard * Weight includes gear operator NOTE: Drawings are for information purposes only; please request certified drawings before preparing piping diagrams 6 Henry Pratt Company

Flanged End Fig. 101 PN10/16 HANDWHEEL DIA 'H' D A E B C DIMENSIONS in (mm) FLANGED END FIG. 101 PN10/16 NOMINAL VALVE SIZES (DN) 350 400 450 500 600 700 800 900 1000 1200 1400 A 533 591 635 699 813 984 984 1168 1346 1511 1683 B 35 36 40 43 48 54 54 60 67 70 76 C 432 451 546 597 1067 1295 1295 1524 1829 2134 2438 D 383 402 432 519 581 701 701 838 956 956 956 E 330 356 381 406 549 629 629 737 737 914 914 H 457 457 457 457 610 610 610 610 762 762 762 WEIGHT in kg (approx.) 411 467 615 853 1724 2359 2359 3153 4609 6056 6849 Dimensions on DN1500 and larger available upon request Weight includes gear operator NOTE: Drawings are for information purposes only; please request certified drawings before preparing piping diagrams Henry Pratt Company 7

Flanged End Fig. 102 PN25 HANDWHEEL DIA 'H' HANDWHEEL DIA 'H' F F A A E E B C B C DIMENSIONS in (mm) FLANGED END FIG. 102 PN25 NOMINAL VALVE SIZES (DN) 65 80 100 125 150 200 250 300 350 400 450 500 600 700 800 900 A 191 210 254 279 318 381 445 521 584 648 711 775 914 1092 1092 1270 B 27 28 32 35 36 41 48 51 54 57 60 64 70 76 76 86 C 241 282 305 381 403 419 457 502 470 492 587 635 1089 1318 1318 1549 E 89 95 114 146 146 210 226 254 330 356 381 406 549 629 629 737 F 152 175 179 211 211 257 353 375 383 402 432 519 581 701 701 838 H 152 152 152 152 152 305 305 305 457 457 457 457 610 610 610 610 WEIGHT in kg (approx.) 18 36 54 73 77 125 181 268 445 510 830 934 1887 2586 2586 3479 DN1000 and larger available upon request All of above valves have gear operators standard Weight includes gear operator NOTE: Drawings are for information purposes only; please request certified drawings before preparing piping diagrams 8 Henry Pratt Company

Flanged End Fig. 101 RL PN10/16 HANDWHEEL DIA 'H' HANDWHEEL DIA 'H' F F A A E E B C B C DIMENSIONS in (mm) FLANGED END FIG. 101 PN10/16 RUBBER LINED (DN65 - DN1000) NOMINAL VALVE SIZES (DN) 65 80 100 125 150 200 250 300 350 400 450 500 600 700 800 900 1000 A 178 191 229 254 279 343 406 483 533 591 635 699 813 984 984 1168 1346 B 23 25 30 30 30 33 35 35 38 39 43 46 51 57 57 64 74 C 197 210 235 260 273 298 337 362 438 457 552 603 1073 1302 1302 1530 1835 E 89 95 114 146 146 194 226 254 330 356 381 406 549 629 629 737 794 F 152 155 179 211 211 257 394 437 383 402 432 519 581 701 701 838 956 H 152 152 152 152 152 305 305 305 457 457 457 457 610 610 610 762 762 WEIGHT in kg (approx.) 14 32 45 66 61 109 156 200 411 467 615 853 1724 2359 2359 3153 4609 DN1200 and larger available upon request All of above valves have gear operators standard Weight includes gear operator NOTE: Drawings are for information purposes only; please request certified drawings before preparing piping diagrams Henry Pratt Company 9

Proposed Technical Specification PN10/16 Eccentric Plug Valves DN65-DN1800 Valves shall be of the non-lubricated eccentric type with an elastomer covering the plug seating surface. Plug valves fully comply with AWWA C-517-09 and MSSSP 108. The elastomer shall be suitable for the service intended. Flanged valves shall be drilled in accordance with BS EN1092-2 PN10 or PN16. Ports shall be round on sizes DN65 through DN300 to facilitate pigging when required. Valves DN350 and larger shall be of a rectangular port design. Valve bodies shall be of ASTM A-126 Class B cast iron in accordance with AWWA C-517-09 Section 4.3.3.1. Valves DN80 and larger shall be furnished with a welded-in overlay seat of not less than 99% nickel in accordance with AWWA C-517-09 Section 4.3.3.4. Sprayed, plated or screwed-in seats are not acceptable. Plugs shall be of ASTM A-536 Grade 65-45-12 ductile iron for valves DN500 and smaller, and ASTM A126 Class B cast iron for valves DN600 and larger, in compliance with AWWA C-517-09 Section 4.3.3.1 and 4.3.3.2. The plugs shall be of one piece solid construction with PTFE thrust bearings on the upper and lower bearing journals to reduce torque and prevent dirt and grit from entering the bearing and seal area. Wrench operated valves DN65-DN200 shall be capable of being converted to worm gear or automated operation without removing the bonnet or plug from the valve. All wrench operated valves shall be equipped with a 50mm square nut for use with removeable levers or extended T handles. Worm gear operators, where required, fully comply with AWWA C-504-06 and shall be of heavy duty construction with the ductile iron quadrant supported on the top and bottom by oil impregnated bronze bearings. The worm gear and shaft shall be manufactured of hardened steel and run on high efficiency roller bearings. Valves shall be designed and manufactured to shut off bubble tight at 10 bar or 16 bar for valves DN65 through DN600 and at 10 bar for valves DN700 and larger. Each valve shall be given a shell and seat hydrostatic test with the test results being certified when required by the customer. Plug valves shall be Ballcentric Series 101 as manufactured by Henry Pratt Company. Valves shall be furnished with replaceable sleeve type bearings conforming to AWWA C-517-09 Section 4.3.3.6. Bearings shall be of sintered, oil impregnated type 316 stainless steel ASTM A-743 Grade CF-8M. Valve shaft seals shall be of the U cup type in accordance with AWWA C-517-09 Section 4.4.7. Seals shall be self adjusting and repackable without removing the bonnet from the valve. 10 Henry Pratt Company

Proposed Technical Specification PN25 Eccentric Plug Valves Valves shall be of the non-lubricated eccentric type with an elastomer covering the plug seating surfaces. The elastomer shall be suitable for the service intended. Flanged valves shall be drilled in accordance with BS EN1092-2 PN25. Ports shall be round on sizes DN65 through DN300 to facilitate pigging when required. Valves DN350 and larger shall be of a rectangular port design. Valve bodies shall be of ASTM A-536 Grade 65-45-12 ductile iron. Valves DN80 and larger shall be furnished with a welded-in overlay seat of not less than 99% nickel in accordance with AWWA C-517-09 Section 4.3.3.4. Sprayed, plated or screwed-in seats are not acceptable. Plugs shall be of ASTM A-536 Grade 65-45-12 in compliance with AWWA C-517-09 Section 4.3.3.2. The plugs shall be of one piece solid construction with PTFE thrust bearings on the upper and lower bearing journals to reduce torque and prevent dirt and grit from entering the bearing and seal area. Valves shall be furnished with replaceable sleeve type bearings conforming to AWWA C-517-09 Section 4.3.3.6. Bearings shall be of sintered, oil impregnated type 316 stainless steel ASTM A-743 Grade CF-8M. Valve shaft seals shall be of the U cup type in accordance with AWWA C-517-09 Section 4.4.7. Seals shall be self adjusting and repackable without removing the bonnet from the valve. Worm gear operators shall fully comply with AWWA C-504-06 and shall be of heavy duty construction with the ductile iron quadrant supported on the top and bottom by oil impregnated bronze bearings. The worm gear and shaft shall be manufactured of hardened steel and run on high efficiency roller bearings. Valves shall be designed and manufactured to shut off bubble tight at 25 bar with the seat downstream for sizes DN65 to DN300, 16 bar for sizes DN350 to DN500 and 10 bar for DN600 and larger. Each valve shall be given a shell and seat hydrostatic test with the test results being certified when required by the customer. Plug valves shall be Ballcentric Series 102 as manufactured by Henry Pratt Company. Henry Pratt Company 11

Proposed Technical Specification PN10/16 Rubberlined Eccentric Plug Valves Valves shall be of the non-lubricated eccentric type with an elastomer covering the plug seating surfaces. Plug valves fully comply with AWWA C-517-09 and MSSP67. Flanged valves shall be drilled in accordance with BS EN 1092-2 PN10 or PN16. Ports shall be round on sizes DN65 through DN300 to facilitate pigging when required. Valves DN350 and larger shall be of a rectangular port design. Valve bodies shall be of ASTM A-126 Class B cast iron. The interior of the valve bodies shall be covered with a suitable elastomer with a minimum thickness of 3mm. The elastomer shall extend through the valve flow way and onto the flange faces to ensure a positive seal. Plugs shall be of ASTM A-536 Grade 65-45-12 for valves DN500 and smaller, and ASTM A126 Class B for valves DN600 and larger, in compliance with AWWA C-517-09 Section 4.3.3.1 and 4.3.3.2. The plugs shall be of one piece solid construction with PTFE thrust bearings on the upper and lower bearing journals to reduce torque and prevent dirt and grit from entering the bearing and seal area. No exposed portion of the plug stem shall be in contact with the flow way. Valves shall be furnished with replaceable sleeve type bearings conforming to AWWA C-517-09 Section 4.3.3.6. Bearings shall be of sintered, oil impregnated type 316 stainless steel ASTM A-743 Grade CF-8M. Valve shaft seals shall be of the U cup type in accordance with AWWA C-517-09 Section 4.4.7. Seals shall be self adjusting and repackable without removing the bonnet from the valve. Worm gear operators shall fully comply with AWWA C-517-09 and shall be of heavy duty construction with the ductile iron quadrant supported on the top and bottom by oil impregnated bronze bearings. The worm gear and shaft shall be manufactured of hardened steel and run on high efficiency roller bearings. Valves shall be designed and manufactured to shut off bubble tight at 10 bar or 16 bar with the seat downstream for valves DN65 through DN300 and at 10 bar with the seat downstream for valves DN350 and larger. Each valve shall be given a shell and seat hydrostatic test with the test results being certified when required by the customer. Plug valves shall be Ballcentric Series 101RL as manufactured by Henry Pratt Company. 12 Henry Pratt Company

Proposed Technical Specification Eccentric Plug Valves DN65-DN900 Stainless Steel AWWA C517-09 Standards PN16/PN10 Valves shall be of the non-lubricated eccentric type with an elastomer covering all seating surfaces. The elastomer shall be suitable for the service intended. Flanged valves shall be manufactured in accordance with BS EN 1092-2 PN16 or PN10. Ports shall be round on sizes DN-65 to DN300 to facilitate pigging when required. Valves DN350 and larger shall be of a rectangular port design. Valve bodies shall be of CF8M (316 stainless steel). The plugs shall be of one piece solid construction with PTFE thrust bearings on the upper and lower bearing journals to reduce torque and prevent dirt and grit from entering the bearing and seal area. Valves shall be furnished with replaceable sleeve type bearings conforming to AWWA C-517-09 Section 4.3.3.6. Bearings shall be of sintered, oil impregnated type 316 stainless steel ASTM A-743 Grade CF-8M. Valve shaft seals shall be of the U cup type in accordance with AWWA C-517-09 Section 4.4.7. Seals shall be self adjusting and repackable without removing the bonnet from the valve. Wrench operated valves DN65-DN200 shall be capable of being converted to worm gear or automated operation without removing the bonnet or plug from the valve. All wrench operated valves shall be equipped with a 50mm square nut for use with removeable levers or extended T handles. Worm gear operators, where required, shall be of heavy duty construction with the ductile iron quadrant supported on the top and bottom by oil impregnated bronze bearings. The worm gear and shaft shall be manufactured of hardened steel and run on high efficiency roller bearings. Valves shall be designed and manufactured to shut off bubble tight at 16 bar or 10 bar for valves DN65-DN300 and 10 bar for valves DN350 and larger. Each valve shall be given a shell and seat hydrostatic test with the test results being certified when required by the customer. Plug valves shall be Ballcentric Series 101S as manufactured by Henry Pratt Company. Henry Pratt Company 13

PRATT PRODUCT GUIDE Model 2FII Monoflange MKII Plug Valve Triton XR70 Indicating Butterfly Valve UL & FM approved Tilting Disc Check Valve Triton XL N-Stamp Nuclear Butterfly Valve Cone Valve Rectangular PIVA Post Indicating Valve Assembly UL & FM approved Sleeve Valve Rubber Seated Ball Valve Triton HP250 Check Valve Groundhog Valve Control Systems Compact Controllable Energy Dissipater Metal Seated Ball Valve Henry Pratt Company 401 South Highland Avenue Aurora, Illinois 60506-5563 United States 630-844-4000 Fax 630-844-4160 www.henrypratt.com ISO 9001: 2000 Certified 2011 Henry Pratt Company Printed in the U.S.A. METPLUG-0211