A Tradition of Excellence. Innovative Products For Unique Applications. Creative Engineering for Fluid Systems. Earthquake Proof Valves
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1 46165 Butterfly 3-20 Valves:34551 Butterfly 3-20 Valves 9/15/10 9:05 AM Page 1
2 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 3" to 162" rectangular VAlVES: 1' x 1' to 14' x 16' BAll VAlVES rubber SEATED: from 4" to 60" METAl SEATED: from 6" to 48" PlUg VAlVES: from 1/2" to 36", 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 applica tions, 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 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 electropneumatic actuators. Valves Designed for Harsh Environments Pratt designed and manufactured a 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 tremen dous 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.
3 401 South Highland Avenue Aurora, Illinois phone: fax: TABlE of ConTEnTS SCoPe of LINe - 3 THrougH 20 INCHeS: 2fII BuTTerfLy VALVe...1 MoNofLANge MKII BuTTerfLy VALVe...1 DeSIgN DeTAILS...2 features AND BeNefITS...3 C V VALueS...3 SuggeSTeD SPeC I fi CA TIoNS...4 DIMeNSIoNS - 2fII (flanged)...5 MoNofLANge MKII (WAfer)...5 2MII (MeCHANICAL JoINT)...6 2MfII (MeCHANICAL JoINT x flanged)...6 2PII & 2PfII (PuSH-oN AND PuSH-oN x flanged)...7 2VII (VICTAuLIC)...8 ACTuATor DIMeNSIoNAL DATA...8 Valves for the 21st Century
4 46165 Butterfly 3-20 Valves:34551 Butterfly 3-20 Valves 9/15/10 9:05 AM Page 4 SCoPE of line: AWWA In-PlAnT rubber SEATED BUTTErFly VAlVES Model 2FII Flanged Butterfly Valve Sizes: 3 through 20 inches Body Style: flanged x flanged ends other Body Style options: - Mechanical joint - Victaulic - flanged & mechanical joint - Push-on - Push-on & flanged Pressure Class: - Class 150B per AWWA Standard C504 Working Pressure: 150 psig Flanges: - flat faced and drilled in accordance with ANSI B16.1, Class 125 standards. rubber Seat: Bonded seat-in-body Actuation options: - Pratt hand lever - MDT manual actuator with AWWA nut, handwheel or chainwheel - Pratt Dura-Cyl hydraulic or pneumatic cylinder - Pratt Positron electric actuator Model 2FII Butterfly Valve Monoflange MkII Wafer Butterfly Valve Sizes: 3 through 20 inches Body Style: Wafer-type Pressure Class: - Class 150B per AWWA Standard C504 Working Pressure: 150 psig rubber Seat: - Bonded seat-in-body extends over inner surface to form self-gasketing feature Actuation options: - Pratt hand lever - MDT manual actuator with AWWA nut, handwheel or chainwheel - Pratt Dura-Cyl hydraulic or pneumatic cylinder - Pratt Positron electric actuator Monoflange MkII Butterfly Valve Please see the outside back cover for a listing of other Pratt products page 1 Henry Pratt Company
5 46165 Butterfly 3-20 Valves:34551 Butterfly 3-20 Valves 9/15/10 9:05 AM Page 5 DESIgn DETAIlS: MoDElS 2FII AnD MkII Self Adjusting Permanent Packing Chevron type packing increases sealing force as line pressure increases. The self adjusting packing bears on turned, ground and polished stainless steel, minimizing wear and assuring long life. Packing is accessible for replacement without dismantling the valve per AWWA Standard C504. lifetime Bearings Pratt s chemically inert nylon bearings are sized to meet or exceed AWWA specification pressure loads. They are self-lubricating, require no periodic maintenance and are designed to outlast the life of the pipeline. Corrosion resistant Shafts The shafts in Pratt s rubber seated butterfly valves, 3 through 20, are constructed of centerless, ground ASTM A276 type 304 or type 316 stainless steel bar and thus are not susceptible to corrosion as are carbon steel or other similar materials. Shafts are one-piece, through-shaft construction, sized to meet or exceed the requirements of AWWA Standard C504 for Class 150B butterfly valves. Streamlined Discs Pratt s lens-shaped discs are designed to minimize pressure drop and turbulence. In the full open position, the disc creates no more friction loss than a 45Ż elbow. Discs are secured to shafts by stainless steel pins to transmit required torques and withstand stresses imposed under a variety of operating conditions. Body Seat our standard seats are constructed of Buna N rubber and bonded to the valve body in Pratt s manufacturing facility using a unique thermal process. This molding process ensures that the disc-to-seat interference will not cause excessive wear or abrasion under normal operating conditions. on the wafer type MKII bodies, the rubber seat covers the entire inner surface plus the outside face of the valve body to provide a self-gasketing feature. Pratt s seat-in-body design minimizes the effects of corrosive buildup on the inside of the valve because deposits are swept away by the hard sealing edge of the disc each time the valve is exercised. Heavy Duty Bodies Both Monoflange MKII and Model 2fII bodies are heavy duty cast iron. Model 2fII flanges are fully faced and drilled in accordance with ANSI B16.1, Class 125 standard for cast iron flanges. Monoflange MKII bodies incorporate an overlapping seat which also forms a gasket for the flange face. The actuator mounting trunnion is machined and drilled for a 4-bolt connection. Valves for the 21st Century page 2
6 FEATUrES AnD BEnEFITS of PrATT MoDElS 2FII AnD MkII FEATUrE Seat-in-body design Seat molded in recessed body cavity, protected by metal on 3 sides Valve withstood proof-of-design testing of 100,000 cycles - AWWA only requires 10,000 cycle proof-of-design testing Through-disc pinning Symmetrical lens-shaped disc Nonmetallic bearings Chevron V-type packing BEnEFIT - reduces seat failure due to corrosive buildup in the valve and pipeline. No hard ware to loosen. No periodic maintenance required. rubber protected from flow media to increase seat life. - Proven reliability over the life of the valve - Provides a tight disc-to-shaft pin connection, greatly reducing the possibility of loosening through vibration - Higher C v : lower head loss results in energy savings for customer s system - Prevents galvanic corrosion and provides lower coefficient of friction - Self-adjusting, lasts the life of the valve Valve Valve Valve Size C v Size C v Size C v C v values for the 2FII and MkII in the full open position Standard Type of Material Material Body Disc Shaft 0255 Cast Cast Iron SS, Iron 316 edge Type 304 other materials available upon request. Specifications for Materials of Construction Cast Iron: ASTM A48, Class 40 (MKII body) ASTM A126, Class B (2fII body) Stainless Steel: ASTM A276 Type 304 (Shaft) page 3 Henry Pratt Company
7 SUggESTED SPECIFICATIon For THE PrATT rubber SEATED BUTTErFly VAlVE, SIzES 3 THroUgH 20 InCHES general Butterfly valves shall be manufactured in accordance with the latest revision of AWWA C504, Class 150B and conform to NSf Standard 61. The manufacturer shall have produced AWWA butterfly valves for a minimum of five years. All valves shall be either Henry Pratt Model 2fII or Monoflange MKII and comply with the following details. Valve Bodies Valve bodies shall be constructed of ASTM A126, Class B cast iron for flanged valves or ASTM A48, Class 40 for wafer style. flanged valves shall be fully faced and drilled in accordance with ANSI Stan dard B16.1, Class 125. Valve Seats rubber body seats shall be of one piece construction, si mul - ta neous ly mold ed and bond ed into a recessed cavity in the valve body. Seats may not be located on the disc or be retained by segments and/or screws. for wafer style valves, the seat shall cover the entire inner surface of the valve body and extend over the outside face of the valve body to form a flange gasket. Valve Bearings Valve bearings shall be of a self-lubricating, non me tal lic material to ef fec tive ly isolate the disc-shaft as sem bly from the valve body. Metal-to-metal thrust bear ings in the flow stream are not allowed. Valve Disc The disc shall be a lens-shaped design to afford min i mal pressure drop and line turbulence. Materials of construction shall be: 3"-6" ASTM A351 gr. Cf8N stainless steel disc 8"-20" ASTM A126, Class B cast iron disc with a stainless steel type 316 edge Painting All surfaces of the valve interior shall be clean, dry and free from grease before paint ing. The valve interior and exterior, except for disc edge, rubber seat and finished portions shall be evenly coated with an NSf61 approved 2-part liquid epoxy. Minimum dry film thickness shall be 4-6 Mils. Testing Hydrostatic and seat leakage tests shall be conducted in strict accordance with AWWA Stan dard C504. Proof of Design The manufacturer furnishing valves under the spec i fi ca tion shall be prepared to provide Proof of Design Test reports to illustrate that the valves supplied meet the design requirements of AWWA C504. Manual Actuators: Manual actuators shall be of the trav el ing nut, self-lock ing type and shall be de signed to hold the valve in any in ter me di ate position between ful ly open and ful ly closed without creeping or flut ter ing. Ac tu a tors shall be equipped with mechanical stop-limiting devices to pre vent overtravel of the disc in the open and closed po si tions. Ac tu a - tors shall be ful ly en closed and de signed to produce the spec - i fied torque with a max i mum pull of 80 lb. on the handwheel or chain wheel. Actuator components shall with stand an input torque of 450 Lb. ft. at extreme op er a tor position without dam - age. Manual ac tu a tors shall conform to AWWA C504 and shall be Pratt MDT or an approved equal. Powered Actuators: refer to Pratt s Butterfly Valve Actuator brochure for suggested specifications and detailed information regarding cylinder actuators and electric actuators. Discs shall be re tained by stain less steel pins which extends through the full diameter of the shaft to with stand the spec i fied line pres sure up to valve rating and the torque re quired to oper ate the valve. Disc stops located in the flow stream are not allowed. Valve Shafts Valve shafts shall be of stainless steel type 304. At the op er a - tor end of the valve shaft, a packing gland uti liz ing V type chevron packing shall be utilized. o ring and/or u cup packing is not allowed. Valves for the 21st Century page 4
8 DIMEnSIonAl DATA: MoDEl 2FII, FlAngED BUTTErFly VAlVE Size A B C D E F g E D E Available in sizes 3 through 20 inches All dimensions shown in inches DIMEnSIonAl DATA: MonoFlAngE MkII WAFEr BUTTErFly VAlVE Size A B C D / /16" 1/16" D VAlVE DISC MInIMUM SIzE o.d. MATIng I.D. (in.) (in.) (in.)* All dimensions shown in inches. page 5 Henry Pratt Company
9 DIMEnSIonAl DATA: MoDEl 2MII MECHAnICAl JoInT EnD BUTTErFly VAlVE F=NO. & SIZE OF BO LTS Size A B C D E F g x R G=BOLT CIRCLE NOM. VALVE C SIZE E E D A B X= LAYING LENGTH O.D. I.D. Installation Diagram Note: The following items to be furnished by others unless otherwise specified in contract: Bolts, glands, nuts, gaskets See Note 1. I.D. SIzE o.d. MIn Available in sizes 4 through 20 inches All dimensions shown in inches. Mechanical joint end is in compliance with ANSI DIMEnSIonAl DATA: MoDEl 2MFII MECHAnICAl JoInT AnD FlAngE EnD BUTTErFly VAlVE FF=NO. & SIZE OF BOLTS GG=BOLT CIRCLE NOM. VALVE CC SIZE Size A B C CC D DD E EE F FF g gg x E EE DD D A B G=BOLT CIRCLE C = FLANGE OD F=NO. & SIZE OF BO LTS 125 LB. ST'D. L AYOUT STRADDLE C'LINE ALL HOLES 1/8" LARGER THAN BOLT DIA. X= LAYING LENGTH O.D See Note 1. I.D. SIzE o.d. MIn Installation Diagram Note: Bolts, nuts, glands and gaskets furnished by others unless otherwise specified in contract. Available in sizes 6 through 20 inches. I.D All dimensions shown in inches. Note 1: Min. Pipe I.D. value has zero clearance between mating pipe and valve disc. Properly sized piping must include appropriate clearance. Valves for the 21st Century page 6
10 DIMEnSIonAl DATA: MoDEl 2PII PUSH-on JoInT EnD BUTTErFly VAlVE F=NO. & SIZE OF BO LTS G=BOLT CIRCLE NOM. VALVE C = FLANGE OD SIZE X= LAYING LENGTH O.D. Installation Diagram Note: rubber ring gaskets furnished by others unless otherwise specified in contract. D A B I.D. See Note 1. Min. Pipe Pipe Pipe Size o.d. I.D Size A B C D x * - All dimensions shown in inches. * - Available in sizes 4 through 16 inches. * - D Ī 1 ŕ16" through 10" valves, Ī 1 ŕ8" for 12" and larger valves. * - The valve end is designed for iron or PVC pipe with cast iron equivalent o.d.s (not for use with IPS o.d. pipe.) * - use with Tyton (reg. T.M. or u.s. Pipe & foundry Co.) rubber ring gasket. DIMEnSIonAl DATA: MoDEl 2FPII PUSH-on x FlAngE EnD BUTTErFly VAlVE F=NO. & SIZE OF BOLTS. 125 LB. ST'D. LAYOUT. STRADDLE C'LINE ALL HOLES 1/8" LARGER THAN BOLT DIA. C R G=BOLT CIRCLE NOM. VALVE CC SIZE X= LAYING LENGTH O.D. Installation Diagram Note: Bolts, nuts, and rubber gaskets furnished by others unless otherwise specified in contract. E D A B I.D. See Note 1. Min. Pipe Pipe Pipe Size o.d. I.D Note 1: Min. Pipe I.D. value has zero clearance between mating pipe and valve disc. Properly sized piping must include appropriate clearance. Size A B C CC D E F g All dimensions shown in inches. - Available in sizes 4 through 12 inches. - D Ī 1 ŕ16" through 10" valves, Ī 1 ŕ8" for 12" and larger valves. - The valve end is designed for iron or PVC pipe with cast iron equivalent o.d.s (not for use with IPS o.d. pipe.) - use with Tyton (reg. T.M. or u.s. Pipe & foundry Co.) rubber ring gasket. page 7 Henry Pratt Company
11 DIMEnSIonAl DATA: MoDEl 2VII VICTAUlIC EnD BUTTErFly VAlVE Size A B C D E NOM. VALVE SIZE C A Available in sizes 4 through 20 inches. B D E All dimensions shown in inches. D dimension Ī 1 ŕ16" for 4" thru 10" valves. D dimension Ī 1 ŕ8" for 12" thru 20" valves. Victaulic groove profile stye 44 INSTALLATION DETAIL NOTE: VICTAULIC COUPLINGS, GLANDS, AND GASKETS FURNISHED BY OTHERS y y ACTUATor DIMEnSIonAl DATA For MoDElS 2FII AnD MkII PrATT MDT MAnUAl ACTUATor Q S T R J L All di men sions shown in inches P M PRATT OPEN CLOSED N V= DIA. W= DIA. CHAINWHEEL HANDWHEEL Valve MDT # Turns Size Size J l M n P Q r S T V W to Close 3 to 12 MDT , 16 MDT , 20 MDT For further information regarding manual actuators, refer to Pratt s Butterfly Valve Actuator brochure. Valves for the 21st Century page 8
12 PRATT PRODUCT GUIDE Model 2FII Triton HP250 Triton XR70 Control Systems Triton XL Metal Seated Ball Valve Rectangular Plug Valve Rubber Seated Ball Valve Tilting Disc Check Valve Groundhog Valve Cone Valve Monoflange MKII Sleeve Valve Indicating Butterfly Valve UL & FM approved Check Valve N-Stamp Nuclear Butterfly Valve Compact Controllable Energy Dissipater 2010 Henry Pratt Company Printed in the U.S.A. BFV PIVA Post Indicating Valve Assembly UL & FM approved Henry Pratt Company 401 South Highland Avenue Aurora, Illinois Toll Free Fax ISO 9001: 2000 Certified
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