Velan Forged Steel Gate, Globe & Check Valves

1 Forged Steel gate , Globe & Check VALVESAPI 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 EMISSIONSP lease note this is a condensed catalog . For a complete version, contact Velan COMPANY PROFILECONTENTSM anufacturing Program ..2 Semi-Automatic Assembly & Testing Plant ..2 Exclusive Design Features ..3 Packing Chamber Design ..4 Low Fugitive Emission Valves ..5 Forged Steel gate Valves ..6 7 Extended Body gate Valves ..8 Conventional Port Globe Valves ..9 Bonnetless Y-Pattern Globe Valves ..1045 Inclined Globe Valves ..11 Conventional Port Check Valves ..12 Inclined Piston Check gate & Globe Sealed Bellows Seal Valves .

2 15 Boiler Plant Service Valves ..16 Continuous Blowdown Valves ..17 Forged Cryogenic Valves ..18HF Acid Valves ..19 Fabricated Data ..21 24 How 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 in 1950, Velan earned a reputation for excellence as a major supplier offorged Valves to nuclear power plants and the Navy. Velan has pioneeredmany innovative valve designs, emphasizing quality, safety, ease of operation,low emissions, simple in-line maintenance and long cycle s product lines are manufactured in thirteen specialized manufacturing plants,including six in Canada and , four in Europe, and three in Asia.

3 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 Velan s 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 has sales offices and distributors located the Velan website at an updated contact :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 note this is a condensed catalog .

4 For a complete version, contact Velan CLASS 800 (API 602) gate VALVESSEMI-AUTOMATIC ASSEMBLY AND TESTING PLANTP lease note this is a condensed catalog . For a complete version, contact Velan AND TIGHTER STEM SEAL Stem hardened and ground. Each packing ringindividually 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 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 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 prevents stem from scoring and galling andprovides longer disc seal and body , LEAKPROOF BODY-BONNET JOINTFULLY ENCASED SPIRAL WOUND GASKETThe design of thegasketed joint is compression isbetter controlled in afully enclosed.

5 The possibility ofunwinding of the SS spiral metal is BOLTING ENSURES JOINT TIGHTNESSS imple stress 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 STRENGTH WELDED BONNETS(Full-penetration welds on special orders only) Valves withthreaded-in strengthwelded seats offeran additional level ofsafety againstfugitive body-bonnetwelds are made onfully automatic MIGW elders.

6 Weldhardness iscontrolled (includingthe heat-affectedzone) andmaintained below200 "3710,00016,000 28,0003 Solid Stellite disc for full Stellite trimSolid Stellite discfor all Y-pattern valvesEXCLUSIVE DESIGN FEATURESBODY-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 MIG note this is a condensed catalog . For a complete version, contact Velan Velan STEM SEAL EVOLVED FROM THESE TEST FINDINGS: Large 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.

7 Precision stem and packing , roundness and fine finish of stem and packing chamber wall are essential. Short and narrow packing six rings in a single set chamber, and, wherever possible, only 3 16 1 4 ( mm) wide. Rings precompressed to 3500 4000 psi for graphite and to 1800 2000 psi for Teflon to ensure equal stress distribution and effectiveness of all rings. Stem and packing chamber walls. Close roundness, straight-ness and superior 8 16 RMS or burnished surface finish. Live-loading (optional). Two sets of Belleville springsmaintain a permanent packing stress of 3500 4000 CHAMBER DESIGN FOR LOW EMISSIONSTEST RESULTS LEAD TO DESIGN OF LONG-LIFE LEAKPROOF STEM SEALOPTIONALP hotos to the right and bottomillustrate packingmachine andbonnet note this is a condensed catalog .

8 For a complete version, contact Velan PART TESTED LEAKAGE (ppm)1000gasket0packing05 TEST CONDITIONSTest Medium: Methane 500 and 1,000 psig, ambienttemperatureInstrument: Organic vapor analyzerOVA-108, range1 10,000 ppm,adjusted for 100%methaneValve Type: API 602 Class 800 gatevalveSizes:1/2 2 (15 50 mm)Packing:GraphiteGasket:Spiral wound SS 316and graphiteTrim:Wedge: 13 CR Seat: StelliteQuantity:15 valvesTEST RESULTS: 15 GATEVALVES 1 2 2 (15 50 mm)API 598 testAll Valves zero leakageMethane test All Valves zero leakageCycling test Gasket: 0 ppm(300 cycles) Packing: 0 ppmJOINT TIGHTENING All small Forged Steel valve joints are tightenedwith multiple nut runners providing uniformloading and superior zero ppm : Gasket is not CHAMBER AND STEM PARAMETERS Stem hardened and ground to 16 RMS finish.

9 Per inch straightness ( mm per mm straightness). ( mm) cylindricity. 63 RMS maximum surface finish of packingchamber. Diametrical clearances:stem-gland, stem-backseat: ( mm).packing chamber-gland: ( mm). Maximum of six packing rings. Individual compression: 3500 4000 psi for graphite TEST REPORTDESIGN FACTORS FOR GASKET JOINTS Full enclosureto allow gasket to retain positiveradial support during loading. Accurate control of compression through closetolerances of gasket groove and allowance forradial expansion. No radial machine marks. Minimum of three inner wrapsto prevent buckling. Minimum of three tack welds. Minimum of three filler wraps. Close tolerance+ ( mm) for gasketthickness. Minimum width up to 5 (127 mm) ID of ( mm).

10 Gasket resiliency tested regularly and inspected atreceiving due to sensitivity to variations of API 602 Class 800 forgedsteel gate FOR EXCEPTIONAL LOW EMISSION VALVE PERFORMANCENEW GENERATION OF LOW FUGITIVE EMISSION VALVESAPI 598 TESTS FOR 11 2 (40 mm) gate VALVESV elan offers standard Forged gate , Globe , and Check Valves qualification tested for compliancewith EPA fugitive emissions note this is a condensed catalog . For a complete version, contact Velan Steel gate Valves , 1 4 2" (8 50 mm)THREADED, SOCKET WELD & FLANGEDASME CLASS 800: 1975 psi @ 100 FASME CLASS 1500: 3705 psi @ 100 FFLANGED ASME CLASSES 150, 300, 600, 1500 DESIGN FEATURES A compact but extremely sturdy design for high pressure-temperature service. Solid Stellite 6 wedge (optional) ensures low friction and longservice life.