34551 Butterfly 3-20 Valves - Henry Pratt Coreps.henrypratt.com/products/literature/320bfv.pdfA...

46165 Butterfly 3-20 Valves:34551 Butterfly 3-20 Valves 9/15/10 9:05 AM

A Tradition of Excellence

With the development of the first rubber seated butter-fly valve more than 70 years ago, the Henry PrattCompany became a trusted name in the flow controlindustry, setting the standard for product quality andcustomer service. Today Pratt provides the followingrange of superior products to the water, wastewaterand 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 MeetingThe Customers’ needs

Henry Pratt valves represent a long-term commitmentto both the customer and to a tradition of productexcellence. This commitment is evident in the numberof innovations we have brought to the industries weserve. In fact, the Henry Pratt Company was the firstto introduce many of the flow control products in usetoday, including the first rubber seated butterfly valve,one of the first nuclear N-Stamp valves, and thebonded seat butterfly valve.

Innovative ProductsFor Unique Applications

Though many of the standard valves we produce areused in water filtration and distribution applica tions,Pratt has built a reputation on the ability to developspecialized products that help customers to meet theirindividual operational challenges.

Creative Engineeringfor Fluid Systems

Pratt’s ability to provide practical solutions to complexissues is demonstrated by the following case histories.

Earthquake Proof Valves

Pratt designed and manufactured hydraulically actu-ated valves for a water storage application so that thevalves would automatically operate in the event ofearthquakes. This lead to the development of a valvethat will withstand forces of up to 6g’s.

Custom Actuation/Isolation Valves

Pratt designed and manufactured valves that wouldisolate a working chamber in the event of a nuclearemergency during the decommissioning of armednuclear warheads. The valves were able to close in amillisecond using specially designed Pratt electro-pneumatic actuators.

Valves Designed forHarsh Environments

Pratt designed and manufactured a 144" diameterbutterfly valve for the emergency cooling system ata jet engine test facility. The valve was designed tosupply water to help dissipate the tremen dous heatgenerated by the engines during testing.

Through experience, commitment and creative engineering, Pratt is uniquelysuited to provide superior products for our customers’ special needs.

For more information, contact our corporate headquarters in Aurora, Illinois.


Valves for the 21st Century

TABlE oF ConTEnTS

SCoPe of LINe - 3 THrougH 20 INCHeS:2fII BuTTerfLy VALVe ........................................................................1MoNofLANge MKII BuTTerfLy VALVe ..................................................1

DeSIgN DeTAILS ................................................................................2

feATureS AND BeNefITS ..........................................................3

CV VALueS ..........................................................................................3

SuggeSTeD SPeC I fI CA TIoNS ............................................................4

DIMeNSIoNS -2fII (fLANgeD) ..................................................................................5MoNofLANge MKII (WAfer) ..............................................................52MII (MeCHANICAL JoINT) ....................................................................62MfII (MeCHANICAL JoINT x fLANgeD) ................................................62PII & 2PfII (PuSH-oN AND PuSH-oN x fLANgeD) ..............................72VII (VICTAuLIC) ..................................................................................8

ACTuATor DIMeNSIoNAL DATA ........................................................8

401 South Highland AvenueAurora, Illinois 60506-5563http://www.henrypratt.com

phone: 630.844.4000 fax: 630.844.4160


Henry Pratt Companypage 1

SCoPE oF lInE: AWWA In-PlAnT

rUBBEr SEATED BUTTErFly VAlVES

Model 2FII Flanged Butterfly Valve

Sizes: 3 through 20 inchesBody Style: flanged x flanged endsother Body Style options:- Mechanical joint- Victaulic- flanged & mechanical joint- Push-on- Push-on & flangedPressure Class:- Class 150B per AWWA Stan dard C504Working Pressure: 150 psigFlanges:- flat faced and drilled in ac cor dance with

ANSI B16.1, Class 125 standards.rubber Seat: Bonded seat-in-bodyActuation options:- Pratt hand lever- MDT manual ac tu a tor with AWWA nut,

handwheel or chainwheel - Pratt Dura-Cyl hydraulic or pneumatic cylinder- Pratt Positron electric actuatorModel 2FII Butterfly Valve

Monoflange MkII Butterfly Valve

Monoflange MkII Wafer Butterfly Valve

Sizes: 3 through 20 inchesBody Style: Wafer-type Pressure Class:- Class 150B per AWWA Stan dard C504Working Pressure: 150 psigrubber Seat: - Bonded seat-in-body ex tends over inner

surface to form self-gasketing featureActuation options:- Pratt hand lever- MDT manual ac tu a tor with AWWA nut,

handwheel or chainwheel - Pratt Dura-Cyl hydraulic or pneumatic cylinder- Pratt Positron electric actuator

Please see the outside back cover for a listing of other Pratt products


Valves for the 21st Century page 2

DESIgn DETAIlS: MoDElS 2FII AnD MkIISelf Adjusting Permanent Packing

Chevron type packing increases sealing force asline pres sure increases. The self adjusting pack -ing bears on turned, ground and polished stain -less steel, min i miz ing wear and assuring long life.Pack ing is ac ces si ble for re place ment with outdis man tling the valve per AWWA Stan dard C504.

lifetime Bearings

Pratt’s chemically inert nylon bearings are sizedto meet or exceed AWWA specification pres sureloads. They are self-lu bri cat ing, require no pe ri -od ic main te nance and are de signed to outlast thelife of the pipe line.

Corrosion resistant Shafts

The shafts in Pratt’s rubber seated butterflyvalves, 3” through 20”, are con struct ed of center-less, ground ASTM A276 type 304 or type 316stainless steel bar and thus are not sus cep ti ble tocorrosion as are carbon steel or oth er similarmaterials. Shafts are one-piece, through-shaftcon struc tion, sized to meet or ex ceed the re quire -ments of AWWA Stan dard C504 for Class 150Bbutterfly valves.

Streamlined Discs

Pratt’s lens-shaped discs are designed to min i -mize pres sure drop and turbulence. In the fullopen po si tion, the disc creates no more frictionloss than a 45Ż el bow. Discs are secured toshafts by stain less steel pins to trans mit re quiredtorques and with stand stress es imposed under ava ri ety of op er at ing con di tions.

Body Seat

our standard seats are constructed of Buna Nrub ber and bond ed to the valve body in Pratt’sman u fac tur ing facility us ing a unique thermal pro -cess. This mold ing pro cess ensures that thedisc-to-seat in ter fer ence will not cause ex ces sivewear or abrasion under normal op er at ing con di -tions. on the wafer type MKII bodies, the rubberseat covers the entire inner surface plus the out -side face of the valve body to pro vide a self-gas-keting fea ture. Pratt’s seat-in-body de signmin i miz es the ef fects of corrosive build up on thein side of the valve be cause deposits are sweptaway by the hard seal ing edge of the disc eachtime the valve is ex er cised.

Heavy Duty Bodies

Both Monoflange MKII and Model 2fII bodies areheavy duty cast iron. Model 2fII flang es are fullyfaced and drilled in accordance with ANSI B16.1,Class 125 standard for cast iron flang es.Monoflange MKII bodies in cor po rate an over lap -ping seat which also forms a gasket for the flangeface. The actuator mounting trun nion is ma -chined and drilled for a 4-bolt connection.



Standard Type of MaterialMaterial Body Disc Shaft

0255 Cast Cast Iron SS, Iron 316 edge Type 304

FEATUrES AnD BEnEFITS

oF PrATT MoDElS 2FII AnD MkII

FEATUrE BEnEFITSeat-in-body design - reduces seat failure due to corrosive buildup in Seat molded in recessed body cavity, the valve and pipeline. No hard ware to loosen. protected by metal on 3 sides No periodic maintenance required. rubber protected

from flow media to increase seat life.

Valve withstood proof-of-design testing - Proven reliability over the life of the valveof 100,000 cycles - AWWA only requires 10,000 cycle proof-of-design testing

Through-disc pinning - Provides a tight disc-to-shaft pin connection,greatly reducing the possibility of looseningthrough vibration

Symmetrical lens-shaped disc - Higher Cv : lower head loss results in energysavings for customer’s system

Nonmetallic bearings - Prevents galvanic corrosion and provides lowercoefficient of friction

Chevron V-type packing - Self-adjusting, lasts the life of the valve

Valve Valve Valve

Size Cv Size Cv Size Cv

3” 323 10” 4458 16” 11413

4” 575 12” 6420 18” 14444

6” 1294 14” 8738 20” 17832

8” 2300 Cv values for the 2FII and MkII in the full open position

Specifications forMaterials of Construction

Cast Iron:ASTM A48, Class 40 (MKII body) ASTM A126, Class B (2fII body) Stainless Steel: ASTM A276 Type 304 (Shaft)other materials available

upon request.



SUggESTED SPECIFICATIon For THE PrATT

rUBBEr SEATED BUTTErFly VAlVE, SIzES 3 THroUgH 20 InCHES

general

Butterfly valves shall be manufactured in accordance with thelatest revision of AWWA C504, Class 150B and conform toNSf Standard 61. The manufacturer shall have producedAWWA butterfly valves for a minimum of five years. All valvesshall be either Henry Pratt Model 2fII or Monoflange MKII andcomply with the following details.

Valve Bodies

Valve bodies shall be constructed of ASTM A126, Class B castiron for flanged valves or ASTM A48, Class 40 for wafer style.flanged valves shall be fully faced and drilled in accordancewith 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 thevalve body. Seats may not be located on the disc or beretained by segments and/or screws. for wafer style valves,the seat shall cover the entire inner surface of the valve bodyand extend over the outside face of the valve body to form aflange gasket.

Valve Bearings

Valve bearings shall be of a self-lubricating, non me tal lic mate-rial to ef fec tive ly isolate the disc-shaft as sem bly from the valvebody. Metal-to-metal thrust bear ings in the flow stream are notallowed.

Valve Disc

The disc shall be a lens-shaped design to afford min i mal pres-sure drop and line turbulence. Materials of construction shallbe:• 3"-6" — ASTM A351 gr. Cf8N stainless steel disc• 8"-20" — ASTM A126, Class B cast iron disc with a stain-

less steel type 316 edge

Discs shall be re tained by stain less steel pins which extendsthrough the full diameter of the shaft to with stand the spec i fiedline pres sure up to valve rating and the torque re quired tooper ate the valve. Disc stops located in the flow stream arenot 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” typechevron packing shall be utilized. “o” ring and/or “u” cup pack-ing is not allowed.

Painting

All surfaces of the valve interior shall be clean, dry and freefrom grease before paint ing. The valve interior and exterior,except for disc edge, rubber seat and finished portions shallbe 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 strictaccordance with AWWA Stan dard C504.

Proof of Design

The manufacturer furnishing valves under the spec i fi ca tionshall be prepared to provide Proof of Design Test reports toillustrate that the valves supplied meet the design require-ments of AWWA C504.

Manual Actuators: Manual actuators shall be of the trav el ingnut, self-lock ing type and shall be de signed to hold the valvein any in ter me di ate position between ful ly open and ful lyclosed without creeping or flut ter ing. Ac tu a tors shall beequipped with mechanical stop-limiting devices to pre ventovertravel 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 orchain wheel. Actuator components shall with stand an inputtorque 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 shallbe Pratt MDT or an approved equal.

Powered Actuators: refer to Pratt’s Butterfly Valve Actuatorbrochure for suggested specifications and detailed informationregarding cylinder actuators and electric actuators.



DIMEnSIonAl DATA: MoDEl 2FII, FlAngED BUTTErFly VAlVE

D

E

E

DIMEnSIonAl DATA: MonoFlAngE MkII WAFEr BUTTErFly VAlVE

D

1/16"

1/16"

nominal Valve Size A B C D 3 43⁄4 31⁄4 51⁄4 21⁄16

4 51⁄2 31⁄2 63⁄4 25⁄16

6 61⁄2 51⁄8 85⁄8 215⁄16

8 73⁄4 61⁄2 107/8 31⁄16

10 9 97⁄8 131⁄4 33⁄16

12 101⁄2 115⁄16 16 37⁄16

14 117⁄8 123⁄4 175⁄8 311⁄16

16 131⁄2 143⁄8 201⁄8 43⁄16

18 143⁄8 151⁄4 211⁄2 411⁄16

20 16 1613⁄16 233⁄4 53⁄16

All dimensions shown in inches.

— Available in sizes3 through 20 inches

VAlVE DISC MInIMUMSIzE o.D. MATIng PIPE I.D.(in.) (in.) (in.)*

3 3.089 2.414 4.074 3.446 6.070 5.388 8.078 7.5310 10.098 9.6212 12.108 11.6414 13.339 12.8616 15.336 14.7918 17.370 16.7520 19.380 18.71

nominal Valve Size A B C D E F g 3 43⁄4 31⁄4 71⁄2 5 3⁄4 4-5⁄8 6

4 51⁄2 31⁄2 9 5 15⁄16 8-5⁄8 71⁄2

6 61⁄2 51⁄8 11 5 1 8-3⁄4 91⁄2

8 73⁄4 61⁄2 131⁄2 6 11⁄8 8-3⁄4 113⁄4

10 9 97⁄8 16 8 13⁄16 12-7⁄8 141⁄4

12 101⁄2 113⁄8 19 8 11⁄4 12-7⁄8 17

14 117⁄8 123⁄4 21 8 13⁄8 12-1 183⁄4

16 131⁄2 143⁄8 231⁄2 8 17⁄16 16-1 211⁄4

18 143⁄8 151⁄4 25 8 19⁄16 16-11⁄8 223⁄4

20 16 167⁄8 271⁄2 8 111⁄16 20-11⁄8 25

All dimensions shown in inches



DIMEnSIonAl DATA: MoDEl 2MII MECHAnICAl

JoInT EnD BUTTErFly VAlVE

— Available in sizes4 through 20 inches

See Note 1.

Installation DiagramNote: The following items to befurnished by others unlessotherwise specified in contract:Bolts, glands, nuts, gaskets

F=NO. & SIZE OF BO LTS

G=BOLT

CIRCLE

NOM.

VALVE

SIZE

D A B

E E

C

R

X=

LAYING LENGTH

PIPE

I.D.

PIPE

O.D.

nominal ValveSize A B C D E F g x

4 51⁄2 31⁄2 9 81⁄8 1 4-3⁄4 71⁄2 31⁄8

6 61⁄2 51⁄8 11 81⁄2 11⁄16 6-3⁄4 91⁄2 31⁄2

8 73⁄4 61⁄2 131⁄4 85⁄8 11⁄8 6-3⁄4 113⁄4 35⁄8

10 9 93⁄4 159⁄16 91⁄4 13⁄16 8-3⁄4 14 41⁄4

12 101⁄2 113⁄8 1715⁄16 91⁄4 11⁄4 8-3⁄4 161⁄4 41⁄4

14 117⁄8 123⁄4 205⁄16 111⁄2 15⁄16 10-3⁄4 183⁄4 41⁄2

16 131⁄2 145⁄16 229⁄16 12 13⁄8 12-3⁄4 21 5

18 143⁄8 153⁄8 2411⁄16 121⁄4 13⁄8 12-3⁄4 231⁄4 51⁄4

20 16 17 273⁄32 121⁄2 11⁄2 14-3⁄4 251⁄2 51⁄2

All dimensions shown in inches.Mechanical joint end is in compliance with ANSI 21.11.

PIPE PIPE PIPE I.D.SIzE o.D. MIn.

4 4.80 3.106 6.90 5.698 9.05 7.6510 11.10 9.9312 13.20 11.7014 15.30 12.9116 17.40 14.9118 19.50 16.9520 21.60 18.96

E

FF=NO. & SIZE OF BOLTS

GG=BOLT

CIRCLE

NOM.

VALVE

SIZE

EE

CC

D

A BDD

DIMEnSIonAl DATA: MoDEl 2MFII MECHAnICAl JoInT

AnD FlAngE EnD BUTTErFly VAlVE

G=BOLT

CIRCLE

C = FLANGE OD


125 LB. ST'D. L AYOUT

STRADDLE C'LINE ALL

HOLES 1/8" LARGER THAN

BOLT DIA.

— Available in sizes6 through 20 inches.

Installation DiagramNote: Bolts, nuts, glands andgaskets furnished by others unlessotherwise specified in contract.

nominal ValveSize A B C CC D DD E EE F FF g gg x

6 61⁄2 51⁄8 11 11 63⁄4 41⁄4 11⁄16 11⁄16 8-3⁄4 6-3⁄4 91⁄2 91⁄2 41⁄4

8 73⁄4 61⁄2 131⁄2 131⁄4 75⁄16 45⁄16 11⁄8 11⁄8 8-3⁄4 6-3⁄4 113⁄4 113⁄4 413⁄16

10 9 97⁄8 16 159⁄16 85⁄8 45⁄8 11⁄4 13⁄16 12-7⁄8 8-3⁄4 141⁄4 14 61⁄8

12 101⁄2 113⁄8 19 1715⁄16 85⁄8 45⁄8 11⁄4 11⁄4 12-7⁄8 8-3⁄4 17 161⁄4 61⁄8

14 117⁄8 123⁄4 21 205⁄16 93⁄4 53⁄4 13⁄8 15⁄16 12-1 10-3⁄4 183⁄4 183⁄4 61⁄4

16 131⁄2 143⁄8 231⁄2 229⁄16 10 6 17⁄16 13⁄8 16-1 12-3⁄4 211⁄4 21 61⁄2

18 143⁄8 151⁄4 25 2411⁄16 101⁄8 61⁄8 19⁄16 17⁄16 16-11⁄8 12-3⁄4 223⁄4 231⁄4 65⁄8

20 16 167⁄8 271⁄2 273⁄32 101⁄4 61⁄4 111⁄16 11⁄2 20-11⁄8 14-3⁄4 25 251⁄2 63⁄4

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.

X=

LAYING LENGTH

PIPE

I.D.

PIPE

O.D.

PIPE PIPE PIPE I.D.SIzE o.D. MIn.

4 4.80 3.106 6.90 5.698 9.05 7.65

10 11.10 9.9312 13.20 11.7014 15.30 12.9116 17.40 14.9118 19.50 16.9520 21.60 18.96

See Note 1.



DIMEnSIonAl DATA: MoDEl 2PII PUSH-on

JoInT EnD BUTTErFly VAlVE


G=BOLT

CIRCLE

NOM.

VALVE

SIZE

D A B

C = FLANGE OD

X=

LAYING LENGTHPIPE

O.D.

PIPE

I.D.

A B

C

Installation DiagramNote: rubber ring gasketsfurnished by others unlessotherwise specified in contract.

nominal Valve Size A B C D x

4 51⁄2 31⁄2 67⁄8 103⁄8 31⁄8

6 61⁄2 51⁄8 9 103⁄4 31⁄2

8 73⁄4 61⁄2 111⁄4 12 35⁄8

10 9 97⁄8 14 125⁄8 41⁄8

12 101⁄2 113⁄8 163⁄8 15 51⁄8

14 117⁄8 123⁄4 187⁄8 143⁄4 41⁄2

16 131⁄2 143⁄8 211⁄4 15 43⁄4

* - All dimensions shown ininches.

* - Available in sizes 4 through16 inches.

* - D Ī 1ŕ16" through 10" valves,Ī 1ŕ8" for 12" and largervalves.

* - The valve end is designedfor iron or PVC pipe withcast iron equivalent o.D.s(not for use with IPS o.D.pipe.)

* - use with “Tyton” (reg. T.M.or u.S. Pipe & foundryCo.) 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.

G=BOLT

CIRCLE

NOM.

VALVE

SIZE

D A B

E

CC

R

C

X=

LAYING LENGTH PIPE

O.D.

PIPE

I.D.

A B

E

Installation DiagramNote: Bolts, nuts, and rubbergaskets furnished by othersunless otherwise specified incontract.

nominal ValveSize A B C CC D E F g

4 51⁄2 31⁄2 67⁄8 9 711⁄1615⁄16 8-5⁄8 71⁄2

6 61⁄2 51⁄8 9 11 77⁄8 1 8-3⁄4 91⁄2

8 73⁄4 61⁄2 111⁄4 131⁄2 815⁄16 11⁄8 8-3⁄4 113⁄4

10 9 97⁄8 14 16 105⁄16 13⁄16 12-7⁄8 141⁄2

12 101⁄2 113⁄8 163⁄8 19 111⁄2 11⁄4 12-7⁄8 17

14 117⁄8 1211⁄16 187⁄8 21 113⁄8 13⁄8 12-1 183⁄4

16 131⁄2 145⁄16 211⁄4 231⁄2 111⁄2 17⁄16 16-1 211⁄4

- All dimensions shown ininches.

- Available in sizes 4through 12 inches.

- D Ī 1ŕ16" through 10"valves, Ī 1ŕ8" for 12" andlarger valves.

- The valve end isdesigned for iron or PVCpipe with cast ironequivalent o.D.s (not foruse with IPS o.D. pipe.)

- use with “Tyton” (reg.T.M. or u.S. Pipe &foundry Co.) rubberring gasket.

Min.

Pipe Pipe Pipe

Size o.D. I.D.

4 4.80 2.616 6.90 4.968 9.05 7.22

10 11.10 9.2212 13.20 10.9714 15.30 12.5616 17.40 14.59

Min.

Pipe Pipe Pipe

Size o.D. I.D.

4 4.80 2.616 6.90 4.968 9.05 7.22

10 11.10 9.2212 13.20 10.9714 15.30 12.5616 17.40 14.59

Note 1: Min. Pipe I.D. valuehas zero clearance betweenmating pipe and valve disc.Properly sized piping mustinclude appropriate clearance.

See Note 1.

See Note 1.



DIMEnSIonAl DATA: MoDEl 2VII VICTAUlIC EnD BUTTErFly VAlVE

NOM. VALVE SIZE

BA

C

D

E

��

��

��

yyy

yyy

yyy

INSTALLATION DETAIL

NOTE: VICTAULIC COUPLINGS, GLANDS, AND GASKETS FURNISHED BY OTHERS

D

E

INSTALLATION DETAIL

NOTE: VICTAULIC COUPLINGS, GLANDS, AND GASKETS FURNISHED BY OTHERS

— Available in sizes4 through 20 inches.

nominal Valve Size A B C D E

4 51⁄2 31⁄2 55⁄16 81⁄8 3⁄4

6 61⁄2 51⁄8 71⁄2 81⁄2 3⁄4

8 73⁄4 61⁄2 93⁄4 85⁄8 7⁄8

10 9 97⁄8 12 8 15⁄16

12 101⁄2 115⁄16 141⁄4 8 15⁄16

14 117⁄8 1211⁄16 167⁄16 8 15⁄16

16 131⁄2 145⁄16 181⁄2 8 13⁄16

18 143⁄8 153⁄16 2015⁄16 8 11⁄4

20 16 1613⁄16 227⁄8 8 13⁄16

All dimensions shown in inches.“D” dimension Ī 1ŕ16" for 4" thru 10" valves.“D” dimension Ī 1ŕ8" for 12" thru 20" valves.

Victaulic groove profile stye 44

ACTUATor DIMEnSIonAl DATA For MoDElS 2FII AnD MkII

CLOSED

OPEN

PRATT

P

M

N

Q S

T

R

V=

DIA.

HANDWHEEL

CHAINWHEEL

W=

DIA.J

L

PrATT MDT MAnUAl ACTUATor

For further information regarding manual actuators, refer to Pratt’s Butterfly Valve Actuator brochure.

All di men sions

shown in inches

Valve MDT # Turns

Size Size J l M n P Q r S T V W to Close

3 to 12” MDT-2 411⁄16 2 21⁄8 2 41⁄2 41⁄4 75⁄8 77⁄8 77⁄8 8 91⁄8 32

14, 16” MDT-3 55⁄8 27⁄16 31⁄4 35⁄32 55⁄8 53⁄8 91⁄4 101⁄2 10 12 91⁄8 30

18, 20” MDT-4 63⁄8 227⁄32 33⁄8 4 75⁄16 63⁄4 101⁄2 111⁄2 11 12 91⁄8 40


Model 2FII

Triton®

XR70

Indicating Butterfly ValveUL & FM approved

N-Stamp Nuclear Butterfly Valve

PIVA Post IndicatingValve AssemblyUL & FM approved

Monoflange MKII

Triton®

XL

Rectangular

Rubber SeatedBall Valve

Groundhog®

Valve

Triton®

HP250

ControlSystems

Metal SeatedBall Valve

©2010 Henry Pratt CompanyPrinted in the U.S.A.BFV320-0910

PRATT PRODUCT GUIDE

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Henry Pratt Company401 South Highland AvenueAurora, Illinois 60506-5563Toll Free 877-436-7977630-844-4000Fax 630-844-4160www.henrypratt.comISO 9001: 2000 Certified

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