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ST8201-CS 881219· ~ 4/~ /L~IL'I , ~/~ / ~.ILiltN C:. '" ': : hiE! iliqL, ccIr, I'iI<AI2'i DOCLiME. I',.!I',~ 2 1 . 1 C) ALi. i:'i.~,i<l¥-~ ON I'FIE[ L. H. Lacy Company General Contractors 214/357-0146 "Quality Construction for over 65 Years" 10888 Shady Trail P.O. Box 541297 Dallas, Texas 75354-1297 ~ ~[ ?1.. (F'R,cl]"l VAL~,£ ::~ AN~) WA"I'EI:,iOUS VALVE...~ ARE .i:~::)-I'l-I r'I~W.>E il',' F:'RAT I ) . )Id~,NI~:>-YUU F:OF,~ YEJLII-:~' L2(]biSJ:L)EI:~ATIFJN iN FHIS Valves GROUNDHOG BURIED SERVICE RUBBER BUTI'ERFLY VALVES ]~ ~ ~ ~ ..... ~ ~ ~l~ ~ ~. ~.?~ ~. :iO~ mechanca ions vctauliccou lin ~. - :~' ~ ' ,~,,.~. Buried valves are often left open for they must close quickly and tightly. Buried valves are not usually acces- emergencies they must be reliable. By concentrating on lhese.particular ~roblems, Henry Pratt engineers have created the ideal valve tot this demanding duty. ice life equal to or exceeding the pipeline ilself. For instance, the self-adjusting packing should never need rpplacement. Husky, liberally sized, chemically inert nylon bearings have tested out at over 100,000 cycles. The operator is completely grease packed and sealed for life. The rubber seats are molded into the body by a Pratt patented process. The only part exposed to water is the corrosion-resistant disc mounted Jn to leak, Fast, Trouble-Free Operation by-pass arrangemenf to operate GROUNDHOG valves against pres- sure. Operation in either direction is an easy task for one man.., taking close.' All GROUNDHOG operators are designed to accept abuse result- ing from high Input loads. MECHANICAL ,JOINT These rugged operators are rated for input loads of 450 foot pounds of torque against the operator stops-- a full 50% greater than the operator torque requirements specified in AWWA Standard C504. With this added margin of safety, there is no need to worry that the valve and op- erator will be damaged by inexpe. rienced workmen exerting excessive force when closing Ihs valve. NO Exercise Program~ ^ GROUNDHOG valve will never need "exercise" in order to work. The valve is easily operated even after many years of complete neg- lect. This one outstanding advan- tage will lead lo great savings in time and budget lot any municipality. No need for expensive automatic valve operators. No need for large crews traveling from valve to valve on ex- ercise programs. Tight ShuI-OIf ^ GROUNDHOG valve is bubble-tight under all pressure conditions up to the rated pressure. Tightness is as- sured. Each and every GROUNDHOG valve is tested for leakage before leav- ing the factory in accordance with Standard C504. Built-In Damage Resi:~lance As the GROUNDHOG disc ap- proaches the closed position, a high velocity area is created which "flushes" the seat. The disc itself "sweeps" debris ahead to keep the seat clean. There are no wells or depressions where particles can lodge and cause damage. ' Operators for valves Ih¢ounh 30" In diameter only. Distribution, potable or raw water Diviner ~ ground-level position indicator, handwheel, extension stem, valve box {st e _n~dar_d..and No Vaulls Necessary GROUNDHOG valves are designed for direct burial. Expensive concrele vaults are not required, but il used, cost less because of their smaller size. The only "extra" needed is ordinary soil pipe or .valve boxes (standard or slip-type joint). GROUNDHOG valves are now in- stalled in over 800 cities in nearly every state. The superiority of this design over gate valves and other butterfly valves In buried service has been shown both in the laboratory and In the field. In addition to Ihs valve features ciled above, GROUNDHOG valves can be lurnished with a number of acces- sories, including the Diviner ground- level position indicator Ihat gives m- slant valve position and operating 'information. Valve boxes, exten. sion stems and hardwheels are also available. BURIED SERVICE OPERATORS Rugged, Feature Packed Construction Designed and developed by Henry Pratt apeclllcally for buried service, GROUNDHOG valve operators ex- ceed the rigid operating require- ments of AWWA Standard C504 · They ere of the traveling nut type and are self-locking without a unidirec- tional sustained force from the valve. Unlike some operators of other de- signs, GROUNDHOG operators can be relied upon to maintain exact valve position under conditions of fluctuating, turbulent and intermit- tent flow, yet one man can smoothly and easily operate the valve. Stop limiting devices are provided and are capable of withstanding 450 foot pounds of input torque at full open or closed positions without damage to the valve or operator. This is a full BUILT EXTRA STRONG AND WATER TIGHT FOR YEARS OF TROUBLE-FREE SERVICE 50% greater than that specified in AWWA Standard C504 as a mini- mum safety margin against operator abuse.' Moialuro Sealed "nd Water Tight These rugged operators are lubri- cated for the life of the valve. They can be operated without mainte- nance under ground-water condi- tions, and have been lab-tested in submerged operation at water pres- sure to 10 psi. This performance is possible because of the tightly sealed, grease-packed construction. As long as the cover, gasket and seals remain intact, there's no need to worry about damage resulting Irom water infiltration. Smooth Operation On 6 Inch through 12 inch valve sizes operation is linear, with valve opening approximately in proportion to the turns of the nut. In all of the larger sizes, a link-lever arrange- ment provides characterized clos- ure, which by stowing down valve travel aa the valve approached the closed position, minimizes the possi- bility of line shock. TURNS REQUIRED_TO OPEN OR CLOSE Valve Size No. el Turns 6" &6~ 27 10"-&-1:~;' ...... 32 -'--14"-'& 1'6~ ...... 30 '- -18": 20" & 24' 40 3~' 44 36~ - :' 215 42 & 48" 492 'Operators used in valves above 30" in diameter are capable of withstanding 300 toot pounds of torque at extreme operator positions. I ~;;naracterlatlc Curve 6" to. 12' VsIvea / STROKE (in percent of total travel) through 12' feature slotted-lever de.~lgn with internal stops and adjustments. Operator Characteristic Curve-. 14" to 48' Valves* 80 ; 40 O 30 30 40 50 60 70 8o 9o OPERATOR STROKE (in percenl of total travel) 'Curve is approximate. Exact characteristic varies with size of valve and operator. / Operators lot 14 inch and larger valves leature fink-lever arrangement with characterized closure which tends to minimize the possibil- Ity et line shock or water hammer. -$ OPERATOR ACCESSORIES Diviner® Ground Level Position Indicator* The Pratt Diviner Is e Iow-cost accessory that shows st a glance whether the valve Is open or closed, which direction and how many revolutions to turn. This amazingly durable indicator Is designed for simplicity, strength and utmost rail- ability. All working parts are con- structed of a new non-metallic material Ihat is virtually indestructl- bls In this kind of service. Hermefl- cally sealed, the internal gearing is protected from the elements with a clear, tough plastic cover. The DI- viner is shipped for llold assembly complete with cast Iron adapter (1) and cap screws, guide bushing (2), posilion indicator (3), flexible washer (4), and a two-inch square AWWA nut (5) with set screw. The adapter tits a standard 5t/4 Inch valve box (6) or 5 inch cast Iron soil pipe bell. Extension shafts (7) are available in 5-foot and 10-foot lengths and are to be ordered separately at extra cost. Aisc available at extra cost, but not normally furnished by Henry Pratt, are the soil pipe and valve box (standard or slip-type joint). Standard AWWA Nut A two-inch AWWA nut la standard. It may be operated through a five- inch soil pipe or 51/4 inch valve box il desired. Soil pipe or valve box are not normally supplied by Henry Pratt Company but can be furnished, when requested, as an added cost acces- sory. Optional Extension Stem The extension stem may be'used to extend the position of the ~tandard 2" AWWA nut closer to grade. It may be used In conjunction with a stand- ard 5~/4 inch valve box or with 5 Inch soil pipe. A 1 ¥4 inch square exten- sion stem, fitted with a self-centering device, is furnished In 5-foot and 10-foot lengths for cutting end as- sembly In the field. Removable Cover t 2' sf'd AWWA nut --'~1~_ To be cut & easembted Optional ~ Handwheel When vault operation is desired, a handwheel may be required, in sizes 6 inch through 24 inch, the handwheel will be 12 inches In di- ameter; for 30 inch valves and larg- er, 18 inches In diameter. The Handwheel fits directly on the stan- dard AWWA nut and is removable. VALVE END TYPES All end types o~ the following three pages are standard and stocked in the sizes listed in the dimensio~ charts. These dimensions are correct at time of publication, but are not Io be construed es certified drawings. Certified drawings, available upon request, include more deMJls of valve dimensions. For pJastic/PVC pills eilher the mechanical joint end or asbestos cement end valves can be used, depending on the pipe O. D. in either case, robber gaskets to adapt the valve to the pipe O.D. must be lurnished by the pipe supplier. FLANGED 6"-2(Y' NOM. VALVE A B C D' E F G K Q R SIZE 10 9 9;/, IG 8 I%s i2.~m 12 i0~ i1% 19 8 i% 17-~ 14 ll~ l?Ys 21 8 I~ l?-) 16 )3~ )4%. 73~/~ 8 I;A~ 16-1 Notes: All dimensions shown iff inches 'O ~ ~ for 10' valves 'O · ~' for 12' and larger valves FLANGED 24"-48" NOM. VALVE A e c O E F G J Q S 24 18s/o 18% 32 8 1% 20-11/4 29t/a 6 6~/4 11tie 30 21Va 24% ,38~/4 12 2Va 28-1V4 36 9Va 1(Phs 20Va 3~ 25~/ts 28% 46 12 2% 32-1V~ 42% 11~1a 18~/a 25% 42 29% 32% 53 12 2% 36-1V~ 46V~ 15% 23% 29 "42 297/a 32% 53 12 2% 36-1th 49Vz tl~te 18% 25% 41 34Via 37V. 59th 15 '2% 44-1th 56 16% 23% 29 1, AH dimeflmOfls shown in incfles. *'D" dimension _*~' for 24' thru 48' valves. For bolts smaller, than 1~~ d~ameter, bolt holes will be Vi~ larger than diarvmter of boll. For bolts 1¥i~ diameter or larger, bolt boles will bo Va" larger U~an diameter of bolt. 2. Dimeflsm(~s and drilling of and flanges conlorm to tho American cast iran flam3e standards, class 125 (B-16.1). 3. ExteOSmfl stem carl ho used with standard valve boxes or 5" soil pipe. 4. Operator mouotnd in position as shown. (Flow towards flat s~de of disc.) MECHANICAL JOINT 6"-20" NOM. VALVE A 8 C D E F G K X SIZE 6 6½ 5% 11 8Vz 1%, 6-~ 9% 3'%, 3% 8 l~ 6% 13% 8% IV, 6-~ ]l~ 3'%, 3% Inllllllllsn Diagram G G MECHANICAL JOINT 24"-48" : ' ...... ~ ~': ...... .-.,,',,,,, ....... ,.,',,.--,.- NOM. VALVE A I C O E F O X J Q 36 257h. 26~/4457/. 22 2 24-1 433/414 11t3/'e18e/' 2571' '42 29% 32%53 22 2 28-1V450%14 11'3/"'8s/' 25V' 48 34%e37~/.597/e 24 2 32-1V. 571/216 Notes: 1. All dimensions shownin inches. Bolt holes vdfl be ~' arger than d ameter 2. Operator mounted In position as shown. 3. Extension ste-- can be used with standard valve boxes or 5. sc,, pipe. ....... '4. These dimensions are for unt-directional service anly. ,---,..., ....., ..4,., .,...,.., ~. FLANGED x MECHANICAL JOINT 6" & 8" NOM. VALVE A B C CC O DO E EE F FF O GO X SIZE 6 6~/2 §Va 11 11 63/* 4ti* l~h. lV1. 8-:)14 6.3/* 9V* 9~/a 4V4 6 73/*61/2 13% 13V*TShl 4she 11/. 1Va 8-3/* 6.3/4113/4113/* Notes: 1. All dimensions shown in inches. 2. Operator mounled in position as shown. COMBINATION ENDS SAVE Eliminate the cast and installation labor of an adapter section when · connectthg to a hycIrant by using either the flanged by asbestos cement or flanged by mechanical Joi~t end GROUNDHOG. FLANGED x ASBESTOS CEMENT 6", 8", 12" NOM. VALVE A B C CC D DD E F G K Q R X SiZE 12 10V~ Il½ IS½ i9 16% 4 I'/~12-% i7 4½ 4t,~6~ 6% Note: All dimensions shown in inches ASBESTOS CEMENT 6"-16'~ NOM. VALVE A I C O K SIZE 0 R X 61/2 5% 9 103/* 3~3/~e 3% 6 73/4 6V= 11% 107/. 3~3/~a 3% 511~ 33/. 10 9 9Vii 14 11% 4% 41/e 6% 4~/I 12 10V2 11% 163/. 12~h 4% 4VI 6% 41/4 14 11% 125/. 16% 133/4 16 13tl2 14% 21% 14 5she 57/,e 9% 43/4 Note: All dimensions shown i~ inches VICTAULIC 10';20' NOM. VALVE A B C D* E K Q R SIZE )*0 8 9Y~ IZ 8 i~/ll 4~i 4~i 20 16 I1 22Y~ 8 1~/~6 6 6F4 Notes: All dimensions shown in inches 'D ~ ~~ for 10" valves 'O ± ~" for 12" and larger valves This arrangement applies to Style '44" Victaulic ends only. Note: The Iollowiflg items to be lurflishe({ by others; VlCTAUMC 24"-48" NOM. VALV~ A B C D E F G ' H J O S SIZE 1. This an'engement applies to Style "44" Victaulic ends only. 2. Ail dimensions shown in inches. 3. Operator mounted in position as shown. 4. Extension stem can be used wilh standard valve boxes or 5' soil pipe. '5. These dimensions are for uni.directional service only. (Flow towards flatside gl disc.) CONCRETE PIPE ENDS 30"-48" NOM. VALVE A n C D E J Q S X SIZE 30 21~ 24~ 36~m/~s 18 34%~ 9~1/le 10%6 201/4 11¥~ 36 25~/te 28V4 43~mhs 22 41%2 121V~ 18~ 25~ 15V4 '42 ~& 32~/e ~7/t. ~ 47%2 12W~ 18~ 257~ 14V2 42 ~ 327/. 5071~. 22 47~32 16~4 23~ 29 14~h ~ 341h~ 37Ye ~1~ 24 51%2 16~ 23~ 29 16Y4 · For flow In one direction (against the flat side.) Notes: 1. All dimensions shown in inches. 2. Valve Mzes 30~ thru 42" ere SP-5 concrete ends. Stze 48~ Is SP-12 co~rme ende. 3. Operato¢ mounted Iff poaltiofl DS shown. 4. Extension stem can be used with slandard va{va tx)xes Or S" soil pipe. · EASY, ECONOMICAL INSTALLATION, NO MAINTENANCE GROUNDHOG rubber-seat butterfly valves have inherent advantages over gate valves for water distribution service. Here are a few direct comparisons for consideration. Ease of Operation Groundhogs are designed with minimal friction for easy one-man operation against full rated pressure and without requiring a power operator, Gate has inherent high friction loads requiring several times the input force, often requiring more than one man or a power operator. Shut Off Regardless of size and years without operation, shutoll of Groundhogs is quickly accomplished with minimum need for men and equipment. In severe cases, gate shut off may require many men, power operators, and trucks; even nearby valves may have to be operated to achieve shut off. Tlghtneu ~ Groundhogs offer fight shun'off year In and year out regardless of, ' frequency of operation; however, tight shutoff of gates is not assured and leakage may increase with wear and corrosion of wedges and seats. Repairs Groundhogs have no metal-to-metal contact thereby reducing wear; disc edge will not freeze to rubber seat. Separate operator unit is kept free from galvanic corrosion. On the other hand, gate operating mechanism is submerged and moving parts are in metal-to-metal contact. Initial Installation Groundhog valves are completely suitable for direct burial and vaults may be eliminated where policy permits. Gate valves require larger, more costly vaults. Bulk and Weight Face-to-face and outside dimension savings of about one third and weight savings up to one half I~lake Groundhogs easier to Install underground at less cost..,~, Seating Discs of horizontal stem Groundhogs sweep the seat bottom clean of foreign matter with each closing. In a gate foreign mailer deposits can prevent furl stem travel and prematurely activate wedges. Periodic Maintenance Groundhogs are operable and leak free without maintenance. Gates require periodic cycling and sometimes gland repacking to assure operability. SUGGES*T'EI~ SPECIFICATIONS: RUBBER-SEAT BUT'rERFLY VALVES FOR BURIED SERVICE C,~,n~,r~l All butterfly valves shall be of the tight-closing, rubber-seat type with rub- bet seals that are securely fasloned to Ihs valve body. No metal-to*metal seating surfaces will be permitted. Valves shall be bubble-tight at rated pressures with flow in eilher direction, and shall be sat- islactory tot applications involving throt- tling service and/or Irequent operation and for applications Involving valve op- eration after long periods ~,f inactivity. Valve discs shall rotate 90" from the full open position Io the tight shut position. Valves shall meet structural require- meals el AWWA Standard C504, Class 150B. The manulacturer shall have manulactured tight-closing, rubber-seat butterlly valves Ior buried service tot a period of at least 10 years. All valves shall be Henry Pratt Company "GROUNDHOG" valves or approved equal. 1. Valve Bodies and Flanges Valve bod- ies shall be constructed of casf~ iron ASTM A-126 Class B and shall~have either integrally casl mechanical ioint ends ends for asbestos-camera pipe, victaulic couplings or shall be langed. Flange drilling shall be in accordance with ANSI B16.1 Standard for casl iron Ilanges. Two trunnions for shaft bearings shall be integral wilh each valve body. Body thickness shall be in strict accord- ance wdh AWWA Slandard C504, Class 150B. ?. valve Discs Valve discs shall be con- structed of alloy cast iron ASTM A-436 Type 1 (valves 6" through 20"). Larger sizes: Duclile iron with stainless steel seating edge (30" through 48" size) or cas1 iron with stainless steel sealing edge (24" size only). 3. Valve Shafls Shafts of all valves shall be turned, ground and polished. Valve shatls shall be constructed of 18-8 Type 304 stainless steel. Shall di- ameters must meet minimum require* meats established by AVVVVA Standard C504 for Class 150B. 4. Valve Seats Valve seats shall be a synthetic rubber compound. Valves 20' and smaller shall have bonded seats, Bonded seats must bo simullaneously molded in, vulcanized and bonded to the body. Seal bond must withstand 75 lbs. pull under lest procedure ASTM D429, Method B. Valve seals on 24-inch diameter valves and larger shall be field adjustable and replaceable without dismantling opera- tor, disc or shaft. Seats shall be retained in the valve bocly by mechanical means without use of metal retainers or other devices lacaled in Ihs flow stream. 5. Valve Bearings Valves shall be titled with sleeve-type bearings. Bearings shall be corrosion resistant and sell-lubrica- ting. Bearing load shall not exceed 1/5 et the compressive strength of the bearing or shaft material. 6. Valve OperalorsValve operators shall conlorm lo AWWA C504. Manual operators shall be of the traveling nut, sell*locking type and shag be de- signed to hold the valve in any Intermedi- ate position between lull open and lully closed without creeping or Iluttering. Operators shag be equipped with me- chanical stop-limiting devices to prevent overtravel of the disc in the open and closed positions. Operator housings, sup* ports and connections Io the valve shall have provisions for four-bolt mounling. Operators shall be equipped with a 2" square operating nut and shall be fugy gasketed and grease packed for buried service. Valves shag close with a (clock- wise) (counter-clockwise) rotation of Ihs nut. On 6-inch through 30-inch dlameler valves, operator components shall with. stand an input Iorque of 450 It. lbs. at the extreme operator positions without dam- age. On 36-inch diameter valves and larger, operator components shall with- stand an input torque of 300 ft. lbs. at ex- treme operator postlions without damage. 7. Painting All surfaces of Ihs valve shall be clean, dry and free 1rom grease before painting. The valve interior and exterior surfaces except for seating shall be evenly coaled with asphalt varnish in ac- cordance with Federal Speclficalion TT-V-51 and AWWA Standard C504. 8. Testing Hydrostatic and leakage lasts shall be conducted in slrict accordance with AWWA Std. C504. 9. Valve Position Indicator A valve posi- tion indicalor shall be furnished for all valves lot installation in a valve box. The valve indicator shall be hermellcslly sealed for inslallation inside a cast iron valve box and shall show valve-disc posi- tion, direction of rotation and number of lurns Irom full open to full close, This in* dicator shall be provided by 1he valve manufacturer. 10. Proof of Deslgrl The manufacturer (supplier) furnishing valves under Ihs specification shall be prepared 1o show proof that the valves proposed meet the design requirements of AWWA C504.