Technical Information - The Weir Group

1 SARASIN-RSBDP ressure Safety valves & Safety DevicesTechnical InformationExcellentEngineeringSolutions 2 WeirFirst choice for power and industrial protectionSarasin-RSBDPRESSURE relief VALVESTI-7-0213 Quality assurance (division)Weir operates quality programmes to cover the fullscope of their activities. Comprehensive qualitysystems have been developed to serve the power, oiland gas and industrial markets which they company holds approvals to or complies with: ASME Section III N , NPT , NV ASME Section I V ASME Section VIII UV EN ISO 9001: 2008 EN ISO 14001: 2004 OHSAS 18001: 2007 API Q1 TO API LICENCES API 6D (6D-0182) ANDAPI 6A (6A-0445) API STD 520 API STD 526 API STD 527 API STD 2000 ISO 4126 The Quality systems have been approved for thesupply of products to meet the requirements of thePressure Equipment Directive (PED)

2 And compliancemodules A, D1, H, B&D have been applied incategories I through IV company is committed to compliance withlegislation and has an established environment andhealth and safety ongoing commitment to customer care is metthrough the process of continuous improvementand the further development of our systems andprocesses towards meeting ISO 9001 Testing FacilitiesAll pressure containing items are hydrostaticallytested, seat leakage tested and functionally addition, gas, packing emission, cryogenic andadvanced functional testing can be testing facilities Non-destructive examination by radiography, ultrasonics, magnetic particle and liquid penetrant.

3 Chemical analysis by computer controlled direct reading emission spectrometer. Mechanical testing for tensile properties at ambient and elevated temperatures, bend and hardness testing. Charpy testing at ambient, elevated and sub-zero Technical Information can be obtained fromour Web site: Range Overview3 Codes, Standards, Directives& Regulations4-5 Nomenclature6 Sizing Formulas7K and KDvalues7 KBdetermination8 KWdetermination8 Remarks9 KVdetermination9 Tables10-11 Examples12-16 Orifices tables (ASME-API)17 Selection tables18 Capacity tables48 Glossary556A-04456D-0182 Sarasin-RSBDWeir manufactures theSarasin-RSBD range of pressure safety valves andsafety devices for oil and gas, petrochemical andchemical industries, pipelines, thermal and nuclearpower plants, sugar refineries and pulp Sarasin-RSBD range of products is manufacturedin accordance with ASME, API and ISO standards andtherefore can meet most of worldwide customersrequirements.

4 The company holds approvals orcomplies with:EN ISO 9001:2008 - EN ISO 14001:2004 OHSAS 18001:2007 PED 97/23/EC Module B+D Category IVATEX 94/9/ECASME Section I 'V' - ASME Section VIII 'UV'API STD 520 - API STD 526 - API STD 527 API STD 2000 ISO 4126 SELO (China)RTN (Russia)Specifically, Weir can design and manufacture specialvalves to meet special customer choice for power and industrial protectionSarasin-RSBDPSV RANGE OVERVIEWTI-7-0213 Pilot Operated Pressure relief ValvesThe Sarasin-RSBD pilot-operated pressure relief valveis an autonomous valve. It does not need anyauxiliary source of power to operate. The advancedtechnology of Sarasin-RSBD valves has beenadopted by the nuclear industry, French and and by the Oil & Gas industries.

5 It iscomplementary to the range of spring-loadedpressure relief valves and covers a wide field ofapplications including severe of the Sarasin-RSBDP ilot-operated pressure relief valve leak-free pilot on-off opening, fully open or closed(limited maintenance) perfect tightness (no production loss) perfect operation, even with capacities smallerthan those rated for all types of fluids excellent repeatability and reliability adjustable blowdown (pop action) no pressure/flow limit with additional equipment (solenoid valve),the pressure relief valve can be used as meet the most varied requirements, Sarasin-RSBD selects the appropriate pilot detector for thepressure relief valve required (semi or full nozzle,with bellows, piston etc.)

6 Spring Loaded Pressure relief ValvesBody in carbon steel, stainless steel, alloy andexotic materials; with bellows, lever and otheraccessories, to ensure suitability for all S5 (steam only)ASME Section VIII Div. 1(UV Stamp)API Std 526 Full Nozzle - Enlarged guideInlet size : 1" to 12"Rating : 150# to 2500#Temp : up to 540 CStarflow P3/P4/P5 ASME Section VIII Div. 1(UV Stamp)API Std 526 Full NozzleInlet size : 1" to 12"Rating: 150# to 2500#Temp: -196 C up to +540 C63 SeriesISO 4126 Semi-nozzleInlet size : 3 4" to 10"Rating: 150# to 300# Temp: -196 C up to +330 C9 SeriesASME Section VIII Div. 1 Portable PRV - Full nozzleScrewed/Flanged/WeldedSize: 1 2" to 1 1 2"Rating: 150# to 2500# Temp: -196 C up to +400 C78 SeriesSemi nozzleAPI POPRV dimensions76 SeriesFull nozzleAPI spring loaded PRV dimensionsGas - LiquidModulating actionGasPop actionHigh temperature steam - GasPop action86 SeriesHot service - Full nozzleAPI spring loaded PRV dimensionsSet pressure : up to 180 bargTemp : up to 550 CStarvalveChangeover ValvesLow pressure drop COVS tandard COVC ombined valve with linkagesystemSizes : 1 2" - 10"Pressure : up to 100 bargTemp: -196 C up to +427 CMat.

7 CS - SS71 SeriesPortable - Full nozzle4 WeirFirst choice for power and industrial protectionSarasin-RSBDPRESSURE relief VALVESTI-7-0213 Codes, Standards, Directives, RegulationsAFNOR:Association Fran aise de Normalisation(French Association for Standardisation)AISI:American Iron and Steel InstituteANSI:American National Standards InstituteAPI:American Petroleum Institute API Standard 520 - Sizing, selection and installation of pressure-relieving devices in refineriesPart I - Sizing and selectionPart II - Installation API Standard 521 Guide for pressure-relieving and depressuring Systems API Standard 526 - Flanged Steel Pressure ReliefValves API Standard 527 - Testing andacceptance for set pressure and seat tightness ofpressure relief valves API Recommended Practice 576 - Inspection ofpressure relieving devices API Standard 2000 - Venting atmospheric and low-Pressure Storage TanksAS:Australian StandardsASME:American Society of Mechanical Engineers Boiler and Pressure Vessel Code.

8 Compilation ofrules and guidance covering numerous types ofconstruction Section I Power Boilers Section II Materials SA 216 - Carbon-steel castings suitable forfusion welding for high-temperature service SA 217 - Martensitic stainless steel andalloy steel castings for pressure-containingparts suitable for high-temperature service SA 351 - Austenitic steel castings forpressure containing parts SA 494 - Nickel and nickel alloy castings Section III Nuclear Section IV Heating Boilers Section VII Care of Power Boilers Section VIII Rules for construction of pressure Vessels Section IX Welding and Brazing Qualification Section XII Transportation Tanks ASME Standards - Butt welding Ends valves Flanged, threaded andwelding ends - Orifice Flanges Pipe flanges and flanged fittings Power piping Process piping Pipeline transportation systems for liquid hydrocarbons and other liquids - Gas transmission and distributionSystems PTC 25 - Pressure relief DevicesASTM:American Society for testings and materialsBSi:British Standard InstitutionCEN:Comit Europ en de Normalisation(European Committee for Standardization) EN 764 Pressure Equipment Part 1: Terminology - Pressure, temperature,volume, nominal size Part 2.

9 Quantities, symbols and units Part 3: Definition of parties involved Part 4: Establishment of Technical deliveryconditions for metallic materials Part 5: Compliance and InspectionDocumentation of Materials Part 6: Structure and content of operatinginstructions Part-7: Pressure systems for unfired pressurevessel EN 1092 - Flanges and their joints - Circular flanges for pipes, valves , fittings and accessories,PN designated Part 1: Steel flanges Part 3: Copper alloy flanges Part 4: Aluminium alloy flanges EN 1759 - Flanges and their joint - Circular flanges for pipes, valves , fittings and accessories,Class designated Part 1: Steel flanges, NPS 1/2 to 24 Part 3: Copper alloy flanges Part 4: Aluminium alloy flanges EN 10204 - Metallic products - Types of inspection documents EN 12516 - Industrial valves - Shell design strength EN 13445 - Unfired Pressure Vessel Part 1: General Part 2: Materials Part 3: Design Part 4: Fabrication Part 5: Inspection and testing EN 13648 - Cryogenic vessels - Safety devices forprotection against excessive pressure Part 1: Safety valves for cryogenic service Part 2: Bursting disc safety devices for cryogenic service Part 3.

10 Determination of required discharge -Capacity and sizing5 WeirFirst choice for power and industrial protectionSarasin-RSBDPRESSURE relief VALVESTI-7-0213 DIN:Deutsches Institutes f r Normung (GermanInstitute for Standardization)EUROPEAN DIRECTIVE PED 97/23/EC: Pressure Equipment Directive SPVD 87/404/EC: Simple Pressure Vessels Directive TPED 99/36/EC: Transportable Pressure Equipment Directive ATEX 94/9/EC: Directive which provides thetechnical requirements to be applied to equipment intended for use in potentially explosive atmospheres. The Directive is named after the French ATmosph re EXplosible 80/181/EEC: Units of measurementsISO:International Organization for Standardization ISO 4126.