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FORGED STEEL - · PDF fileforged steel gate, ... gasket asme velan asme velan od m m y y 2– 5.5" 3 7 10,000 16,000–28,000 3 ... design factors for gasket joints

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  • FORGED STEEL GATE, GLOBE &CHECK VALVES

    API 602 ASME CLASSES 150 4500 1/4 4 (8 100 mm)

    Power Oil & Gas Petrochemical

    Chemical Marine Pulp & Paper

    Cryogenics Mining Construction

    HIGH PERFORMANCE LOW EMISSIONS

    mikeStamp

  • VELAN COMPANY PROFILE

    CONTENTSManufacturing Program ..........................2Semi-Automatic Assembly & Testing Plant ..............................................2Exclusive Design Features ......................3Packing Chamber Design ........................4Low Fugitive Emission Valves ................5Forged Steel Gate Valves ....................67Extended Body Gate Valves ....................8Conventional Port Globe Valves ............9Bonnetless Y-Pattern Globe Valves ....1045 Inclined Globe Valves ......................11Conventional Port Check Valves ..........12Inclined Piston Check Valves................13Live-Loaded Gate & Globe Valves........14Hermetically Sealed Bellows Seal Valves ..............................15Boiler Plant Service Valves ..................16Continuous Blowdown Valves ..............17Forged Cryogenic Valves ......................18HF Acid Valves ........................................19Fabricated Valves....................................20Engineering Data ..............................2124How to Order ..........................................25

    Velan is one of the world's leading manufacturers of industrial valves, supplyingforged and cast steel gate, globe, check, ball, butterfly, knife gate andengineered severe service valves for critical applications in power, chemicaland petrochemical, oil and gas, pulp and paper, mining, marine, cryogenic andgeneral construction industries.Founded in 1950, Velan earned a reputation for excellence as a major supplier offorged valves to nuclear power plants and the U.S. Navy. Velan has pioneeredmany innovative valve designs, emphasizing quality, safety, ease of operation,low emissions, simple in-line maintenance and long cycle life.Velans product lines are manufactured in thirteen specialized manufacturing plants,including six in Canada and U.S.A., four in Europe, and three in Asia. We have1,400 employees, 75% of whom are located in our North American operations.

    VELAN FORGED STEEL GATE, GLOBEAND CHECK VALVES have been proven incritical service applications for over 50 years.Today Velans comprehensive range of API 602gate, globe, check, angle, and bellows sealvalves remain the leading choice for highperformance in virtually any industrialapplication. New in this version, are 45 inclinedglobe valves, fabricated valves, and expandedinformation on valves for alkylation service.

    GENERAL INFORMATIONTel: (514) 748-7743Fax: (514) 748-8635

    Velan has sales offices and distributors located worldwide.Visit the Velan website at www.velan.com for an updated contact list.

    NOTE: The material in this catalog is for general information. For specific performance data and proper material selection, consult yourVelan representative. Although every attempt has been made to ensure that the information contained in this catalog is correct, Velanreserves the right to change designs, materials or specifications without notice.

    MONTREAL, CANADA 115,000 sq. ft. (10,683 m2) 324 (80600 mm) butterfly, 38 4 (10100 mm) metal & resilient seated ball valves

    HEAD OFFICE & PLANT 5

    ENGLANDVELAN VALVES LTD.Unit 1, Pinfold RoadLakeside Business ParkThurmaston Leicester LE4 8AS Tel: 44-116 269-5172Fax: 44-116 269-3695

    ITALYVELAN SRLVia delle Industrie 9/520050 Mezzago,Tel: (39) 039 62-4111Fax: (39) 039 688-3357

    FRANCEVELAN S.A.S90, rue Challemel LacourF 69 367 Lyon Cedex 7 Tel: (33) 4 78 61 67 00Fax: (33) 4 78 72 12 18

    PORTUGALVELAN VLVULASINDUSTRIAIS, LDA.Av. Ary dos Santos1679-018 FamoesTel: (351-21) 934-7800Fax: (351-21) 934-7809

    TAIWANVELAN-VALVACP.O. Box 2020Taichung, TaiwanR.O.C.Tel: (04) 2792649Fax: (886) 42750855

    KOREAVELAN LTD.1060-4 Shingil-DongAnsan City, Kyunggi-do 425-833Tel: (82) 31-491-2811Fax: (82) 31-491-2813

    CANADAVELAN INC.HEAD OFFICE & PLANT 57007 Cte de LiesseMontreal, QC H4T 1G2Tel: (514) 748-7743Fax: (514) 748-8635

    PLANT 12125 Ward AvenueMontreal, QC H4M 1T6Tel: (514) 748-7743Fax: (514) 748-7641

    PLANT 2 / 7550 McArthur Ave.Montreal, QC H4T 1X8Tel: (514) 748-7743Fax: (514) 341-3032

    PLANT 4 / 61010 Cowie StreetGranby, QC J2J 1E7Tel: (450) 378-2305Fax: (450) 378-6865

    PROQUIP835 Fourth LineOakville, ON L6L 5B8Tel: (905) 842-1721Fax: (905) 849-0923

    U.S.A.VELAN VALVE CORP.PLANT 394 Avenue CWilliston, VT 05495-9732Tel: (802) 863-2562Fax: (802) 862-4014

    GERMANYVELAN GmbH Daimlerstrasse 8 D-47877 Willich Tel: (49) 2154/4938-00Fax: (49) 2154/4938-99

    MANUFACTURING LOCATIONS DISTRIBUTION CENTERS U.S.A.VELCAL537 Stone Road, Unit "A"Benicia, CA 94510Tel: (707) 745-4507Fax: (707) 745-4708

    VELEAST605 Commerce Park Drive SEMarietta, GA 30060Tel: (770) 420-2010Fax: (707) 420-7063

  • 2

    FOR CLASS 800 (API 602) GATE VALVES

    SEMI-AUTOMATIC ASSEMBLY AND TESTING PLANT

    MANUFACTURING PROGRAM IN CARBON, ALLOY AND STAINLESS STEEL

    SMALL FORGED STEEL VALVES, 1/44 (8100 mm)

    Valve Bonnet Bonnet Threaded or Socket Weld Butt Weld Male / FemaleType Type Joint

    Flanged EndsConventional Port Full Port Ends Ends

    OS & Y Bolted 150, 300, 600, 1500, 2500 800, 1500, 1690 800, 1500 1500, 2500GATE OS & Y Welded 150, 300, 600, 1500, 2500, 4500 800, 1500, 1690, 2500, 4500 800 1500, 2500 800, 1500

    Bolted 150, 300, 600, 1500 800, 1500, 1690 1500GLOBE OS & Y Welded 150, 300, 600, 1500 800, 1500, 1690 1500

    Y-pattern 1500, 2500 1690, 2680, 4500 1690, 2680, 4500Valve Cover Threaded or Socket Weld Butt Weld Type

    TypeJoint

    Flanged EndsConventional Port Ends

    Piston Bolted 150, 300, 600, 1500 800, 1500 1500Piston Welded 150, 300, 600, 1500 800, 1500 1500

    CHECK Ball Bolted 150, 300, 600 800, 1500 1500Swing Bolted 150, 300, 600 800Swing Coverless 800

    Inclined piston Welded 1500, 2500 1690, 2680, 4500 1690, 2680, 4500

  • SAFER AND TIGHTER STEM SEAL

    Stem hardened and ground. Each packing ring

    individually inserted andcompressed for bettertightness.

    Two-piece self-aligninggland.

    Sturdy full-length threadedcorrosion-resistant boltsprovide the required high packing stress.

    Live-loading optional. Positive backseat: stem bevel against integral

    backseat.TWO-PIECE STEM DRIVE RENEWABLE IN-LINEThis exclusive and handyfeature found only onVelan small forged OS &Y gate valves enables:

    Replacement of stemnut in-line.

    Removal of handwheel without affecting theposition of valve (closed or open).

    Better stem nut lubrication control.BODY-GUIDED DISC IN GLOBE STOP, NEEDLE AND STOP-CHECK VALVES ELIMINATESSIDE THRUST ON STEMThe top- and bottom-guided disc assures perfectseat and disc alignment in spite of side thrustcaused by high velocity flow.This prevents stem from scoring and galling andprovides longer disc seal and body life.

    STRONGER, LEAKPROOF BODY-BONNET JOINTFULLY ENCASED SPIRAL WOUND GASKETThe design of thegasketed joint is critical.Its compression isbetter controlled in afully enclosed cavity.Also, the possibility ofunwinding of the SS spiral metal is eliminated.

    STRONGER BOLTING ENSURES JOINT TIGHTNESSSimple stress vs.deflection testsconducted on spiralwound gaskets in ourlaboratory confirmedthat the control ofleakage is highlydependent on gasketseating stress and thatthe values shown in theASME Section III Code,namely the seating factor m = 3 and the seatingstress y = 10,000 psi used in calculating bolt sizes,are highly insufficient. Our bolted joints arecalculated to a minimum gasket stress of 16,000 psiwhich is essential for a leakproof joint.

    THREADED-IN STRENGTH WELDED BONNETS(Full-penetration welds on special orders only)Valves withthreaded-in strengthwelded seats offeran additional level ofsafety againstfugitive emissions.

    The body-bonnetwelds are made onfully automatic MIGWelders. Weldhardness iscontrolled (includingthe heat-affectedzone) andmaintained below200 HB.

    GASKET ASME VELAN ASME VELANOD m m y y

    2 5.5" 3 7 10,000 16,00028,000

    3

    Solid Stellite disc for full Stellite trim

    Solid Stellite discfor all Y-pattern valves

    EXCLUSIVE DESIGN FEATURES

    BODY-GUIDED DISC IN PISTON-CHECK VALVES

    Assures perfect alignment of disc and seat even at large flow velocities.

    Flat seating faces for low and medium pressures.

    Automatic MIG welder.

  • THE VELAN STEM SEAL EVOLVED FROM THESE TEST FINDINGS:

    Large loads.Sealing is achieved when compression load is highand packing forms a mass of close fibers of low porosity andpermeability (4,000 psi for graphite).

    Short and narrow packing chambers improve sealing. Small clearances between vital parts. Precision stem and packing chambers.

    Straightness, roundness and fine finish of stem and packing chamber wall are essential.

    Short and narrow packing chamber.Maximum six rings in a single set chamber, and, wherever possible, only 316 14 (4.766.35 mm) wide.

    Rings precompressed to 35004000 psi for graphite and to 18002000 psi for Teflon to ensure equal stress distribution and effectiveness of all rings.

    Stem and packing chamber walls. Close roundness, straight-ness and superior 816 RMS or burnished surface finish.

    Live-loading (optional). Two sets of Belleville springsmaintain a permanent packing stress of 35004000 psi.

    4

    PACKING CHAMBER DESIGN FOR LOW EMISSIONS

    TEST RESULTS LEAD TO DESIGN OF LONG-LIFE LEAKPROOF STEM SEAL

    OPTIONAL

    Photos to the right and bottomillustrate packingmachine andbonnet assemblymachine.

  • CYCLES PART TESTED LEAKAGE (ppm)

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