19000 Series Consolidated Safety Relief Valve
INSTALLATION, OPERATION AND MAINTENANCE MANUAL19000 Series Consolidated Safety Relief ValveSeries types include thefollowing design options: O-Ring Seat Seal (DA) 19096M-DA-BPwww.dresser.com
Page 219000 (April/2009)19000 Series Consolidated Safety Relief Valve
Page 3Table of ContentsPageSafety Sign and Label System . 5Safety Alerts! Read – Understand – Practice. 6Terminology for Safety Relief Valves. 7Introduction. 8Design Features and Nomenclature . 9Handling, Storage, and Pre-Installation . 12Recommended Installation Practices . 13Mounting Position . 13Inlet Piping . 13Outlet Piping . 14Disassembly Instructions . 15General Information . 15Metal Seat Valves (MS). 16O-Ring Seat Seal Valves (DA) . 16Cleaning . 16Parts Inspection. 17Base . 17Metal Seat (MS) Disc . 17O-Ring Seat Seal (DA) Assembly . 17Bonnet . 17Metal Seat (MS) Disc Holder. 17O-Ring (DA) Disc Holder . 17Guide . 17Spindle . 18Spring . 18Spring Washers. 18Adjusting Screw . 18Maintenance Instructions . 18Metal Seat Valves (MS). 18O-Ring Seat Seal Valves (DA) . 25Checking Spindle Concentricity . 25Reassembly and Lubrication. 28Metal Seat Valves (MS). 28O-Ring Seat Valves (DA) . 29Setting and Testing . 29General Information . 29Test Equipment . 29Test Media. 30Setting the Valve . 30Set Pressure Compensation . 31Blowdown . 31Simmer . 31Seat Leakage . 31Back Pressure Tests . 3219000 Series Consolidated Safety Relief Valve19000 (April/2009)
Page 4PageHydrostatic Testing and Gagging . 32Manual Popping of the Valve . 32Addendum: the 19096M-DA-BP Valve . 33Introduction . 33Changes in this Variation . 34Disassembly . 34Parts Inspection . 34Bonnet Top . 34Bonnet Bottom . 34Backup Plate . 34Spindle. 34Spindle O-Ring . 34Backup Plate O-Ring . 34Seat O-Ring . 35Re-assembly and Lubrication . 35Setting and Testing. 37General Information . 37Test Equipment . 37Test Media . 37Setting the Valve. 37Blowdown . 37Seat Leakage . 37Back Pressure Testing . 38Trouble Shooting Guide . 39Maintenance Tools and Supplies . 39Replacement Parts Planning. 40General Information . 40Inventory Planning . 40Replacement Parts List . 40Identification and Ordering Essentials . 40Genuine Dresser Parts . 40Recommended Spare Parts for 19000 Series SRVs . 41Manufacturer’s Warranty, Field Service, Training, and Repair Program. 42Warranty Information. 42Factory Repair Facilities . 42Safety Relief Valve Maintenance Training. 42Field Service . 43Sales Office Locations. 4419000 (April/2009)19000 Series Consolidated Safety Relief Valve
Page 5Safety Sign and Label SystemAppropriate safety labels have been included in the practices and proceduresthroughout this manual. The labels communicate: Level of hazard seriousnessNature of the hazardConsequence of human or product interaction with the hazardInstructions on how to avoid the hazard!DANGERThe top panel describes thelevel of hazard seriousness(DANGER or CAUTION).!CAUTIONThe center panel contains apictorial that communicatesthe nature and possibleconsequence of the hazard.The pictorial may depictpreventive measures totake, such as wearingprotective equipment.Do not remove boltsif pressurized.This will result inserious personalinjury or death.The bottom panelcontains an instructionmessage on how to avoidthe hazard. This messagemay give a more precisedefinition of the hazardand the consequences ofthe hazard.Wear necessaryprotectiveequipment toprevent possibleinjury.ATTENTION! labels are horizontal bands describing special situationsand issues that could potentially damage the SRV.ATTENTION!Exercise care when inserting a rod or pipe in the outlet. Ensure thevalve nozzle is not damaged during the operation.NOTE:Any service questions not covered in this manual should be referred toDresser Consolidated Field Service Department, Phone (1) (318) 640-6055.In addition, you can contact your local Green Tag Center or DresserConsolidated authorized sales representative (contact information can befound on pages 44 & 45).19000 Series Consolidated Safety Relief Valve19000 (April/2009)
Page 6Safety Alerts! Read – Understand – PracticeDanger Alerts A DANGER alert describes actions that may causesevere personal injury or death. In addition, itmay provide preventive measures to avoid severepersonal injury or death.Always perform correct service and repair.Incorrect service and repair can result inproduct or property damage or severepersonal injury or death. DANGER alerts are not all-inclusive. DresserConsolidated cannot know all conceivable servicemethods nor evaluate all potential hazards. Somedangers are listed below:Always use the correct tool for a job. Themisuse of a tool or the use of an impropertool can result in personal injury, damage toproduct or property. Ensure the proper “health physics”procedures are followed, if applicable,before starting operation in a radioactiveenvironment. High temperature/pressure can cause injury.Ensure all system pressure is absent beforerepairing or removing valves. Do not stand in front of a valve outlet whendischarging. STAND CLEAR OF VALVE toavoid exposure to trapped, corrosive media. Exercise extreme caution when inspecting apressure relief valve for leakage. Allow the system to cool to room temperaturebefore cleaning, servicing or repairing. Hotcomponents or fluids can cause severepersonal injury or death. Always read and comply with safety labelson all containers. Do not remove or defacecontainer labels. Improper handling or misusecould result in severe personal injury ordeath. Never use pressurized fluids/gas/air to cleanclothing or body parts. Never use bodyparts to check for leaks, flow rates or areas.Pressurized fluids/gas/air injected into or nearthe body can cause severe personal injury ordeath. It is the owner’s responsibility to specify andprovide protective wear to protect personsfrom pressurized or heated parts. Contactwith pressurized or heated parts can result insevere personal injury or death. Do not work or allow anyone under theinfluence of intoxicants or narcotics to workon or around pressurized systems. Workersunder the influence of intoxicants or narcoticsare a hazard to themselves and otheremployees. Actions taken by an intoxicatedemployee can result in severe personal injuryor death to themselves or others.19000 (April/2009)Caution AlertsCAUTION alerts describe actions that may resultin a personal injury. In addition, they may describepreventive measures that must be taken to avoidpersonal injury. Some caution alerts are listedbelow. Heed all service manual warnings. Readinstallation instructions before installingvalve(s). Wear hearing protection when testing oroperating valves. Wear appropriate eye and clothing protection. Wear protective breathing apparatus toprotect against toxic media.19000 Series Consolidated Safety Relief Valve
Page 7Terminology for Safety Relief Valves (SRV) Accumulation—the pressure increase overthe maximum allowable working pressure ofthe vessel during discharge through the SRV,expressed as a percentage of that pressureor in actual pressure units. Backpressure—the pressure on thedischarge side of the SRV:Built-up Backpressure—the pressure thatdevelops at the valve outlet, after the SRVhas been opened, as a result of flow. Operating Pressure—the gauge pressureto which the vessel is normally subjected inservice. A suitable margin is provided betweenoperating pressure and maximum allowableworking pressure. For reliability of the valve,the operating pressure should be at least 10%under the maximum allowable working pressureor 5 psi (.34 bar), whichever is greater. Overpressure—a pressure increase over theset pressure of the primary relieving device.Overpressure is similar to accumulation whenthe relieving device is set at the maximumallowable working pressure of the vessel.Normally, overpressure is expressed as apercentage of set pressure. Rated Capacity—the percentage of measuredflow at an authorized percent overpressurepermitted by the applicable code. Ratedcapacity is generally expressed in pounds perhour (lb/hr) for vapors, standard cubic feet perminute (SCFM) or m3/min for gases, and ingallons per minute (GPM) for liquids. Relief Valve—an automatic pressure-relievingdevice, actuated by static pressure upstreamfrom the valve. A relief valve is used primarilyfor liquid service. Safety Relief Valve (SRV)—an automaticpressure-relieving device used as eithera safety or relief valve, depending uponapplication. The SRV is used to protectpersonnel and equipment by preventingexcessive overpressure. Safety Valve—an automatic pressurerelieving device actuated by the static pressureupstream of the valve and characterized bya rapid opening or “pop” action. It is used forsteam, gas or vapor service. Set Pressure—the gauge pressure at thevalve inlet for which the relief valve has beenadjusted to open under service conditions.In liquid service, the inlet pressure at whichthe valve starts to discharge determines setpressure. In gas or vapor service, the inletpressure at which the valve pops determinesthe set pressure. Simmer—the audible passage of a gas orvapor across the seating surfaces just before“pop.” The difference between this start-toopen pressure and the set pressure is called“simmer.” Simmer is generally expressed as apercentage of set pressure.Superimposed Backpressure—thepressure in the discharge header before theSRV is opened.Constant Backpressure—the superimposedbackpressure that is constant with time.Variable Backpressure—the superimposedbackpressure that varies with time. Blowdown—the difference between setpressure and re-seating pressure of theSRV, expressed as a percentage of the setpressure or in actual pressure units.Cold Differential Test Pressure—thepressure at which the valve is adjustedto open on the test stand. This pressureincludes the corrections for backpressureand/or temperature service conditions.Differential Between Operating and SetPressures—Valves installed in processservices will generally give best results ifthe operating pressure does not exceed90% of the set pressure. However, onpump and compressor discharge lines, thedifferential required between the operatingand set pressures may be greater becauseof pressure pulsations coming from areciprocating piston. The valve should beset as far above the operating pressure aspossible. Lift—the actual travel of the disc away fromthe closed position when a valve is relieving. Maximum Allowable Working Pressure—the maximum gauge pressure permissiblein a vessel at a designated temperature.A vessel may not be operated above thispressure, or its equivalent, at any metaltemperature other than that used in its design.Consequently, for that metal temperature, itis the highest pressure at which the primarypressure SRV is set to open.19000 Series Consolidated Safety Relief Valve19000 (April/2009)
Page 8IntroductionDesign OptionsThe Consolidated Series 19000 portable pressurerelief valves are designed to meet ASME SectionVIII requirements for fixed blowdown pressurerelief valves and liquid relief valves. They may beused for various media such as air, liquids, processsteam and hydrocarbons and may serve as eithera safety valve or a relief valve, depending upon theapplication.O-Ring Seat Seal ValvesAll 19000 Series Valves are available with anO-Ring seat seal as a design option. This optionaldesign is bubble tight at 97% of set pressures over100 psig, in order to meet application requirementsbeyond the normal capabilities of metal to metalseat valves. Consolidated Series 19000 Valves withthe O-Ring seat seal option are identified by thesuffix DA. (See Table X on page 31.)Design Features andNomenclatureGeneral InformationThe Series 19000 portable safety relief valvehas 316 stainless steel trim as standard material.Reliable performance and easy maintenanceprocedures are characteristics of this valve, whenproperly installed in suitable applications for itsdesign.The 19000 Series SRV has three pressureclasses—19000L 5-290 psig, 19000M 291-2000psig and 19000H 2001 psig and up. Standard19000 parts are used for both liquid applicationsand gas applications. It is designed for shortblowdown on all types of media, typically less than10%.All 19000 Series safety relief valves have fixedblowdown. This means that the parts are designedso that there is no blowdown adjustment requiredwhen setting or testing the valve.19000 (April/2009)Lifting Levers, Caps and GagsAll 19000 Series Valves are designed so that fieldconversion from the standard screwed cap to aplain lifting lever cap, or to a packed lifting lever cap(or vice versa), does not require valve disassemblyor resetting. The lifting lever option is designed toopen the valve at 75% of the valve set pressure, incompliance with ASME Code Section VIII. Further,all available 19000 Series Valve caps may beequipped with a gag upon customer request.Inlet/Outlet ConnectionsAll 19000 Series Valves can be provided by DresserConsolidated with flanged, or socket weld inlet andoutlet connections, upon customer request.NomenclatureApplicable valve nomenclature for Types 19000Male and Female inlet configurations areillustrated in Figures 1 through 3. Relevant partsnomenclature for optional lifting levers, caps andthe gag, as applicable, is provided in Figures 4through 7.19000 Series Consolidated Safety Relief Valve
Page 9Design Features and NomenclatureScrewed Cap (15)Spindle (6)Adjusting Screw (9)Adjusting Screw Locknut (10)Cap Gasket (14)Spring Washers (7)Spring (8)Bonnet (5)Disc Holder (3)Disc (2)Guide (4)Base (1)Spindle (6)19000-2 DesignDisc (2)Disc Holder (3)19000-2 DesignGuide (4)19000-1 DesignFigure 1 – Metal Seat (MS) Valves(Male NPT Inlet)Figure 2 – Metal Seat (MS) Valves(Female NPT Inlet)19096L, 19110L, 19126L, 19226L, 19096M,19110M, 19126M and 19226M19096L, 19110L, 19126L, 19226L, 19357L, 19567L,19096M, 19110M, 19126M, 19226M, 19357M, 19567M,19096H, 19110H, 19126H and 19226H19000 Series Consolidated Safety Relief Valve19000 (April/2009)
Page 10Design Features and Nomenclature (continued)Screwed Cap (15)Spindle (6)Adjusting Screw (9)Adjusting Screw Locknut (10)Cap Gasket (14)Spring Washers (7)Spring (8)Bonnet (5)Disc Holder (3)Disc (2)Guide (4)Base (1)RetainerLockscrew (18)DiscHolder (3)O-RingSeat Seal (17)O-RingRetainer (16)Base (1)Figure 3 – O-Ring Soft Seat (DA) ValvesTypes 19000-DA19000 (April/2009)19000 Series Consolidated Safety Relief Valve
Page 11Design Features and Nomenclature (continued)Figure 4Typical Cap with GagFigure 5Packed Cap with Lifting Lever*For types 19096L, 19096M, 19096H,19110H, 19110L, 19110M, 19126L,19126M, 19226L and 19226M.Both the standard screwed cap and the optionalcaps can be provided with a gag, if required.Gag BoltPacked CapBushingStandardScrewed CapRelease Lock NutRelease NutDrive PinSealing PlugCam ShaftBushing GasketSealing PlugGasketO-RingCap GasketLifting LeverFigure 6Packed Cap with Lifting Lever*For types 19126H, 19226H, 19357L,19357M, 19567L and 19567M.Figure 7Plain Cap with Lifting Lever*For all series 19000 valves.Plain CapLifting ForkLifting ShaftPacked CapLifting LeverReleaseLock NutLivingLeverPackingLever PinRelease LocknutPacking NutRelease NutRelease NutCap GasketCap Screw*Can be provided with a gag.19000 Series Consolidated Safety Relief Valve19000 (April/2009)
Page 12Handling, Storage and Pre-InstallationHandlingValves should not be shipped with the inlet flangedown. These valves should be kept in their factoryfoam-filled carton until installation.ATTENTION!Never lift the valve by the lifting lever.ATTENTION!Handle carefully. Do not drop or strike thevalve.Do not subject SRVs, either crated or uncrated, tosharp impact. Ensure that the valve is not bumpedor dropped during loading or unloading. Whilehoisting the valve, take care to prevent bumpingthe valve against steel structures and other objects.Particular care needs to be taken when handlingscrewed/portable valves to avoid damage toexternal inlet threads.ATTENTION!Prevent dust and debris from entering inletor outlet of the valve.StorageStore SRVs in a dry environment and protect themfrom the weather. Do not remove the valve from theskids or crates until immediately before installation.Do not remove flange protectors and seating plugsuntil the valve is ready to be bolted into placeduring the installation.Screwed/portable valves should be kept in theirfactory foam-filled carton until installation to avoiddamage to external inlet threads.Pre-InstallationWhen SRVs are uncrated and the flange protectorsor sealing plugs are removed, exercise meticulouscare to prevent dirt and other foreign materials fromentering the inlet and outlet ports while bolting thevalve in place.19000 (April/2009)19000 Series Consolidated Safety Relief Valve
Page 13!DANGERRecommended Installation PracticesMounting PositionMount SRVs in a vertical (upright) position (in accordance with API RP 530 PartII). Installing a safety relief valve in any position other than vertical ( 1 degree) willadversely affect its operation as a result of the induced misalignment of moving parts.Mount safety reliefvalves in a vertical,upright positiononly.!DANGERA stop valve may be placed between the pressure vessel and its relief valve only aspermitted by code regulations. If a stop valve is located between the pressure vesseland SRV, the stop valve port area should equal or exceed the nominal internal areaassociated with the pipe size of the SRV inlet. The pressure drop from the vessel tothe SRV shall not exceed 3% of the valve’s set pressure when flowing at full capacity.The threaded inlet and outlet ports and sealing faces of the valve and all connectingpiping must be free from dirt, sediment and scale.Ensure all flange bolts are drawn evenly to prevent distortion of the valve body andthe inlet nozzle.Do not mount valveat the end of pipethrough which there isnormally no flow ornear elbows, tees,bends, etc.!CAUTIONIn the case of screwed/portable valves, use caution to avoid unscrewing bonnetfrom the base; if a pipe wrench is used to install or remove the base, ensure thatthe wrench is placed on the flats of the base and not on the bonnet. If the bonnet/base joint is broken, the valve should be retested to insure proper set pressure andfunction of the valve.Position SRVs for easy access and/or removal so that servicing can be properlyperformed. Ensure sufficient working space is provided around and above the valve.Inlet PipingThe inlet piping (see Figure 8) to the valve should be short and directly from thevessel or equipment being protected. The radius of the connection to the vesselshould permit smooth flow to the valve. Avoid sharp corners. If this is not practical,then the inlet should be at least one additional pipe diameter larger.Heed all servicemanual warnings.Read installationinstructions beforeinstalling valve(s).The pressure drop from the vessel to the valve shall not exceed 3% of valve setpressure when the valve is allowing full capacity flow. The inlet piping must never besmaller in diameter than the inlet connection of the valve. Excessive pressure drop ingas, vapor or flashing-liquid service at the inlet of the SRV will cause the extremelyrapid opening and closing of the valve, which is known as “chattering.” Chattering willresult in lowered capacity and damage to the seating surfaces. The most desirableinstallati
19000 Series Consolidated Safety Relief Valve Page 8 19000 (April/2009) Introduction The Consolidated Series 19000 portable pressure relief valves are designed to meet ASME Section VIII requirements for fixed blowdown pressure relief valves and liquid relief valves. They may be used for various media such as air, liquids, processFile Size: 1MB
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Rev. D - 09/2018 Consolidated* 19000 Series Safety Relief Valve ASME and PED certified, the 19000 Safety . ft lb 1.3558181 Nm F 5/9 ( F-32) C. 2018 Baker Hughes a GE company LLC . 19000H ASME SA479 316 St. St.1 ASME SA479 316 st. St.1 AS
Consolidated 19000 Series Safety Relief Valves Technical Specifications 3 Standard Inlet/Outlet Connections and Pressure Classes Orifice Pressure Range Valve Type Inlet Outlet in2 cm2 psig barg Size Type Size Type min max min max in mm in mm 0.096 0.619 5 290 0.34 19.99 19096L
Financial reporting 94 Consolidated financial statements 94 Consolidated income statement 95 Consolidated statement of comprehensive income 96 Consolidated balance sheet 97 Consolidated statement of changes in equity 98 Consolidated statement of cash flows 99 Notes to the consolidated
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Consolidated Statements of Operations 8 Consolidated Statements of Comprehensive Income 9 Consolidated Statements of Changes in Equity 10 Consolidated Statements of Cash Flows 11 Notes to the Consolidated Financial Statements 1. Basis of preparation 12 2. Significant accounting policies
Consolidated Balance Sheet . 60 Consolidated Statement of Income. 62 Consolidated Statement of Comprehensive Income . 63 Consolidated Statement of Changes in Equity . 64 Consolidated Statement of Cash Flows. 66 Notes to Consolidated
Black Holes: A General Introduction Jean-Pierre Luminet Observatoire de Paris-Meudon, D epartement d’Astrophysique Relativiste et de Cosmologie, CNRS UPR-176, F-92195 Meudon Cedex, France Abstract. Our understanding of space and time is probed to its depths by black holes. These objects, which appear as a natural consequence of general relativity, provide a powerful analytical tool able to .
