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Double EccentricSoft Seated Butterfly ValvesVF Series
Manufacturing& Distribution
worldwide
The Power to Perform.
Added Valuefor DemandingApplications.
Orton is part of IMI UK - Severe Service Division,a leading supplier of specialty flow controlproducts, with a presence on each continent.
Orton designs and manufactures high Performancevalves and actuators for exacting markets as diverseas desalination, power generation, oil, naturalgas, chemical, petrochemical, pulp and paper,shipbuilding, steel, food and beverageand pharmaceutical industries.
Orton double eccentric soft seated valves arespecified worldwide for their unique combination ofshut-off, control and reliability features, togetherwith their compactness and fitness for purpose incritical tight shut-off isolation duties and combinedisolation / non return applications (isolation duties).
CustomerService andSupport.
Orton engineeredsolutions draw on thetechnological andfinancial backing of theGroup in over 80locations worldwide.
PAGE 4
Double Eccentric Soft Seated Valves.Orton VF Series.
Sizes• 2” (50mm) - 160” (4000mm)
Rating• PN 2,5 - 6 - 10 - 16 - 25• ASME Cl. 150
Body Styles• Double flanged• Lug• Wafer• Butt-weld• Special execution on request
• Pressure range:Full vacuum upto 25 Bar.
• Temperature range:-35°C to +160°C(-31°F to +320°F)
• Two piece or one-pieceshaft depending upon rating.
• Wide range ofmaterials.
• Low pressure dropdue to the fullycontoured disc profile.
• Easy maintenance without removingthe valve from the pipeline.• Self cleaning seat.
•Disc mountedrubber seal ring.
•Interchangeable andadjustable seal ring.
•Uninterruptedseating.
• Double eccentricdesign.
• Quarter turn.
• Zero leakage, bi-directionaltight shut-off.
• TestingAPI 598 - API 6D(zero leakage)ISO 5208 rate ADINBS
• QualityISO 9001
Applicable Standards
Double Eccentric Soft Seated Valves.Orton VF Series.
Typical Materials and SpecificationsDuctile Iron Carbon Steel Stainless Steel
Body ASTM A536 gr. 65-45-12 ASTM A216 gr. WCB ASTM A351 gr. CF8M
Body Seat AISI 316 AISI 316 Integral to the body
Disc ASTM A536 gr. 65-45-12 ASTM A216 gr. WCB ASTM A351 gr. CF8M
Shaft AISI 420 AISI 420 AISI 316
Seal Ring EPDM or Buna N EPDM or Buna N EPDM or Buna N
Stem Seals O-Ring O-Ring O-Ring
Ductile Iron Lined Carbon Steel Lined Aluminium Bronz
Body ASTM A536 gr. 65-45-12 + ASTM A216 gr. WCB + ASTM B148 C95800Vulcanized Rubber Vulcanized Rubber
Body Seat AISI 316 or Duplex AISI 316 or Duplex Integral to the body
Disc ASTM A536 gr. 65-45-12 + ASTM A216 gr. WCB + ASTM B148 C95800Vulcanized Rubber Vulcanized Rubber
Shaft AISI 316 or Duplex AISI 316 or Duplex ASTM B150 UNS C63000 HS
Seal Ring EPDM or Buna N EPDM or Buna N EPDM or Buna N
Stem Seals O-Ring O-Ring O-Ring
Monel® 254 SMO® Duplex
Body ASTM A494 M-35-1 ASTM A351 CK-3MCuN UNS S31803
Body Seat Integral to the body Integral to the body Integral to the body
Disc ASTM A494 M-35-1 ASTM A351 CK-3MCuN UNS S31803
Shaft Monel K500 ASTM A479 UNS S31254 ASTM A276 UNS S31803
Seal Ring EPDM or Buna N EPDM or Buna N EPDM or Buna N
Stem Seals O-Ring O-Ring O-Ring
Titanium Inconel® Hastelloy®
Body ASTM A216 gr. WCB + Inconel 625 Hastelloy C276Vulcanized Rubber
Body Seat Vulcanized Rubber Integral to the body Integral to the body
Disc ASTM B367 gr. C-2 Inconel 625 Hastelloy C276
Shaft ASTM B348 gr. 5 Inconel 725 Hastelloy C276
Seal Ring EPDM or Buna N EPDM or Buna N EPDM or Buna N
Steam Seal O-Ring O-Ring O-Ring
Special materials on request.
Rubber seal ring also available in the following materials: Neoprene, Viton®, Hypalon®,
EPDM H.T., Incapsulated PTFE, Natural Rubber, Sylicon, etc.
PAGE 5
254 SMO is a registered trademark of Avesta Sheffield AB.
® Monel is a registered trademark of Inco Alloys International, Inc.
® Hastelloy is a registered trademark of Haynes International, Inc.
® Viton and ® Hypalon are a registered trademark of Du Pont
• DesignANSI B16.34ASME VIIIDIN 3840
• FlangesANSIISODINJIS
• Face to faceAPI 609ISO 5752
Standard shaft sealing execution Shaft sealing for vacuum application
Shaft sealing for submerged execution Replaceable packing execution
PAGE 6
Double Eccentric Soft Seated Valves.Orton VF Series.
The VF Series design is basedupon the double eccentricconcept which minimises thecontact between seal and seatand thereby enhances the valveperformance, reducesmaintenance and extends thevalve life. These features makethe VF series ideally suitable formedium to large size pipelinevalves where maintenancecosts and cost of ownershipneed to be kept to a minimum.
Engineered for SuperiorPerformance.• Rigid and heavy construction• Contoured disc• Full RF or FF flanges• In-line replaceable seal• Up to DN 4000 (160”) size• Fully rated PN 25 Bar & ASME cl.150• Low pressure drop• Customised specifications
Body seat configurations
Efficient Leak - Free Construction.• BodyThe body in the Orton VF Series is a one-piece cast orfabricated design, providing the ultimate in rigidity and leakfree performance. The conical centered seat, welded, boltedor integral to the body retains a full face flange sealingsurface completely free of interruptions and assures aminimum reduction of the inside port diameter as well asproviding the maximum flow capacity. The body internalsurface can be rubber vulcanized or epoxy lined.
• Body seatThe body seat remains corrosion resistant to the effects ofthe pipeline media. Depending on the body material this isachieved by the following solutions:- integrally cast, for bodies in stainless steels, bronze or
other corrosion resistant alloys;- welded to the body internal, for bodies in carbon steel;- fully vulcanized body internal, for bodies in ductile iron or
cast / fabricated carbon steel.Integral replaceable seat options are also available.
• Seal ringThe heavy “T” section seal ring is designed to eliminate thepotential extrusion due to high shut-off DP or high flowvelocity. As a result of this design, the valve is capable ofproviding a full tight shut-off at pressures up to 25 bar.The seal ring compression is adjustable in order to obtainthe optimum sealing capability at differing pressure values.
Shaft sealing configuration
Firsteccentricity
Secondeccentricity
Welded body seat Integral body seat
Rubber vulcanized body seat
PAGE 7
Double Eccentric Soft Seated Valves.Orton VF Series.
BodyThrust bearing
Bottom flange
Lower shaft
Retainer flange
DiscSeal ring
Upper shaft
Shaft sealing area
Bearing
Pins
• Disc and Shaft ArrangementAn inherently rigid design, the upper and lower shafts aresecured to the disc by pins, totally enclosed within the discand protected from aggressive media. For heavy dutyapplications a one-piece shaft is provided.The hydro-dynamically efficient disc profile improves flowcapability and reduces pressure drop and dynamic torque.
• Shaft bushingsLong length, self lubricating bearings manufactured incorrosion resistant alloy are provided. The bearingprotectors assure a very high level of immunity againstcontamination entries or solid particles, resulting in a longerservice life and minimizing maintenance.
• Shaft sealingA corrosion resistance bushing, housing O-Ring sealsensures a complete and reliable sealing of the shaft.An adjustable and replaceable packing is also availableupon request.
Double Eccentric Soft Seated Valves.Orton VF Series.
Notes
1. Face to face dimensions are in accordance withthe latest edition of stated standard.
2. Flange/end connections are in accordance withASME B16.5 or ASME B16.47.
3. Please consult Orton for other available sizes,classes and connections.
Model VFL: LugAPI 609 Table 2 (A)
Model VFB: But-Weld
Overall Dimensions
Model VFF: Double FlangedAPI 609 Table 2 (C)(ISO 5752)
Model VFW: WaferAPI 609 Table 2 (A)
PAGE 8 PAGE 9
Double Eccentric Soft Seated Valves.Orton VF Series.
SI UnitsFace to face (mm) Other dimensions (mm)
-
NP 10 - Class 125
NP 6 Class 75
Weights (Kg)
VFF VFW VFL VFBDoubleFlanged
Wafer Lug Butt-Weld
9001000105012001300140015001600170018001900200022002400260028003000
36”40”42''48''52''56''60''64''68''72''76''80''88''96''
104''112''120''
330410410470530530600600670670760760800800850850900
241300300350
-------------
510550550630710710790790870870950950
10301030111011101190
734780805903960
100710581112117212411299135814201452150515581620
710760790880930985
10301080114012101260132013791438149115521615
430477482517529529585603603603950950950990990990990
59656580808096969696
130130130130130130130
600600600600700700700700700700700700700700700700700
140155134217169169293245245245320320320440440440440
116014621668219426723092367141804863543862536858
(1)(1)(1)(1)(1)
1229156917702458
-------------
1545203323233351
-------------
111014071584219526713186377444365167596968357749
(1)(1)(1)(1)(1)
432632736845
112014171594220526813216380444665197599968757809
(1)(1)(1)(1)(1)
525805961
11301555204323333361
-------------
457683800923
1239157917802468
-------------
484705836940
117114731678220726873109368141984873545862636892
(1)(1)(1)(1)(1)
104140140155134217217293245245245320440440440440440440440440440
600600600600600600600700700700700700700700700700700700700700700
5559596565808096969696
130130130130130130130130130130
338430430477482517517585603603603950990990990990990990990990990
513582662690764810835933
1000104710981152121212811349140814701502156516181680
504573630658740790820910970
102510701120118012501310137014291488155116121675
390430470470510550550630710710790790870870950950
10301030111011101190
154229230241241300300350
-------------
267292318318330410410470530530600600670670760760800800850850900
24”28”30”32”36”40”42''48''52''56''60''64''68''72''76''80''88''96''
104''112''120''
600700750800900
1000105012001300140015001600170018001900200022002400260028003000
ND(mm)
ND(inches)
VFF VFWL VFBDoubleFlanged
Wafer& Lug
ButtWeld
A1 A3 A4 B C L I Y F
273035406382
107145189239308442642746855
113014471624223527113246384445065237603969157869
242627315373
101145197261348535815971
11401565207323633391
--------
24252727446085
126174232311467693810933
1249160918102498
--------
2731404975
106138182230287362510730846970
120515431708228127173196372142934913558263037075
686868686868999988
104104104155155217217293293293293320440440440440440440
200200200200200200300300500600600600600600600600700700700700700700700700700700700
434343434343505048555559656580809696969696
130130130130130130
200200200200200200230230330440440430482482517529603603603603603950990990990990990
141154165177202260295322383414452513582662690764810835933
10001047109811521212128113491408
130142161173214248283314360394436504573630658740790820910970
1025107011201180125013101370
180190200210230250270290310330350390430470470510550550630710710790790870870950950
4854575764718192
102114127154229230241241300300350
--------
114127140140152165178190216222229267292318318330410410470530530600600670670760760
3”4”5”6”8”
10”12”14”16”18”20”24”28”30”32”36”40”42''48''52''56''60''64''68''72''76''80''
NP 20 - Class 15080
100125150200250300350400450500600700750800900
10001050120013001400150016001700180019002000
Note (1): above 2000 mm sizes, weights depend on flange standard
Double Eccentric Soft Seated Valves.Orton VF Series.
VF Series for Emergency Shut Down service(Combined NON-RETURN & ON-OFF valve)
PAGE 10 PAGE 11
Double Eccentric Soft Seated Valves.Orton VF Series.
Orton combined non-return and on-offemergency shut down valves offer totalreliability for hydro-electric and conventionalpower plants.The VF series valve, controlled by acounterweight and hydraulic cylinder is thesafest, most reliable and cost effectivemethod to prevent damage to importantrotary machinery such as turbines andpumps.The valve is maintained in the open positionby the action of the hydraulic cylinder. Inemergency situations, the solenoid valve isde-energised, the counterweight overcomesthe cylinder and closes the valve.The hydraulic circuit is designed tocustomer specific requirements, enables thecylinder to act as a damper, controllingclosure speed, thus preventing dangerouswater hammer effect in the pipeline.
ND 1800 NP 10 carbon steel, rubber lined body,AISI 316L disc, with mechanical safety locking deviceCET 3 - PIOMBINO - ITALY
ND 24’’ ÷ 88’’ Cl.150 - carbon steel rubber lined body & casttitanium disc - sea water isolationUREA PLANT - AL JUBAIL - SAUDI ARABIA
ND 48’’ ANSI 150 aluminium bronze body & discsea water pump protection and isolationVINIL QATAR PROJECT
ND 24’’ ANSI 150, AISI 316L body & disc - sea water isolationJEBEL ALI DESALINATION PLANT - ABU DHABI
ND 2400 - 2800 NP 6 ductile iron, rubber lined body & discsea water pump protection and isolationSHOAIBA POWER PLANT - SAUDI ARABIA
ND 3000 NP 6 fabricated carbon steel rubber lined body & discsea water isolationMUARA TAWAR C.C.P.P. - INDONESIA
Typical applications of emergencyshut down valves are:• pump isolation, to prevent
dangerous back flow to thepump;
• turbine inlet E.S.D. valve inhydroelectric power plants.
In addition to specificallyengineered valves Orton alsodesigns and supplies variousaccessories such as:• Hydraulic units;• Electric control panel;• By-passes with accessories;• Inlet and outlet valve adaptors;• Overspeed flow detectors;• Air admission and air
exhausting.
A team of experienced engineersare available to assist withplanning, erection, start-up andservicing for new and retro-fitapplications.
Typical hydraulic diagram for a power pack including electric motor, oilpump, solenoid valves, pressure reducer, hand pump and flow controlvalves.
Orton SrlVia Grilli 2/ASan Nicolò a Trebbia29010 Rottofreno (PC)ItalyTel: +39 0523 762511Fax: +39 0523 [email protected]
A member of IMI UK - Severe Service Division, an international leaderin specialist flow control products, Orton offers the mostcomplete range of triple eccentric metal seated valvesand soft seated butterfly valves for all applications.
Triple Eccentric MetalSeated Valves
MV Series• Triple eccentric 1/4
turn friction-freeoperation.
• Resilient torqueseated metal-to-metalseal.
• Bi-directional zeroleakage shut-off.
• Inherently fire-safe.
Rubber Seated Valves
DS Series• Bi-directional tight
shut-off.• Self-centering disc on a
resilient seat.• Body and stem free
from fluid contact.• No disc connecting pin
or key (up to 24").
Double EccentricValves
VF Series• Resilient disc-
mounted seal ring.• Bi-directional tight
shut-off.• Double eccentric
operation.• Bi-directional axial
shaft support.
PTFE Seated Valves
TF Series• Self-centering disc on
a PTFE seat.• Bi-directional tight
shut-off.• Body and stem free
from fluid contact.• No disc connecting
pin or key.
Information is given in good faith. Orton Srl can accept no liabilityfor any error or omission and reserves the right to modificationwithout notice for technical development.
QS Certificate of Assesment97/23 EC-PED-HPressure Equipment DirectiveCertified by DNV
Certificate of AssesmentATEX 94/9/ECFiled at DNV
Quality SystemISO 9001Certified by DNV
Fugitive EmissionsTA-LUFT Point 3.1.8.4Certified by TÜV
Fire SafeAPI 607 4th EditionCertified by SwRI
Fire Safe BS 6755 : Pt. 2 : 1987Certified by LLoyd’s Register
Fire SafeDepartment of Trade & IndustryRule 54 Para 62Certified by LLoyd’s Register
Non-Return Valves
NR Series• Triple or double
eccentric.• Metal or rubber seal.• Counter balance
weight with adampening system.
• Low pressure drop.
Triple Eccentric MetalSeated Valves
MV Royal Series• Triple eccentric 1/4
turn friction-freeoperation.
• Resilient torqueseated metal-to-metalseal.
• Fully replaceable seatand seal with in-linemaintenance
• Inherently fire-safe.