Masoneilan - IPSA-Empresa

1 Specification Data CY525609/96 Pressure Reducing Back Pressure and Differential Pressure ControlMasoneilan Models 525 and 526 Pressure Regulators Steam, Gas or Liquid ServiceCY5256 SD - 09/96 Models 525 and 526 Pressure Regulators2 Table of ContentsForewordThe Models 525 and 526 double seated regulators aredesigned to handle a wide variety of process pressure controlapplications. Construction features have been carefullyselected to provide optimum performance. Those include: Top and Bottom Guiding. A well accepted industry stan-dard particularly suited for double seated plugs to provideadequate support against side loads. High Capacity with Low Recovery.

2 Flow capacity is at toplevels for contemporary double seated regulators and isattained with very little pressure recovery as indicated by a high critical flow factor. Reduced Capacity Trim. Factor Trim - the most practi-cal double seated trim design giving a substantial reductionin capacity while maintaining desirable flow Data ..3 Ratings (ANSI Class) ..3 Body Materials ..3 End Connections ..3 Trim Materials ..3 Bonnet Packing ..3 Flow Coefficients - CV ..3 Critical Flow Factor - FL ..3 Capacity Charts ..4 Steam ..4 Air ..5 Water ..6 Materials ..7 Dimensions ..8 Weights ..9 High Performance Materials. Materials of constructionhave been selected for high performance and long life whenhandling the high pressure drop capabilities of the valve.

3 High Temperature Applications. For temperatures overthe rating of the diaphragm material, the regulator must bemounted with the actuator below the center line of the reg-ulator body. The diaphragm will be protected from the hightemperature by a condensate barrier in the sensing lineand actuator diaphram case. If installed otherwise, an ade-quate condensate barrier must be incorporated. Consultfactory for more information. Configurations. Models 525 and 526 Regulators aredesigned for use with the 10900 Series Actuators for reduc-ing, back pressure and differential pressure to Specification Data CY5010 for actuator SD - 09/96 Models 525 and 526 Pressure Regulators3 General DataRatings (ANSI Class)FunctionModelpressure reducing525differential pressure reducing525-50back pressure526differential back pressure526-50 Servicesteam, gas, liquidsBody Configurationhigh capacity globe with double seated top and bottomguided plugTrimfull area reduced capacity disk type quick opening plugBody Size (in.)

4 ANSI .75 1 2 3 4 Trim MaterialsBonnet Packing316 Stainless Steel Plug and Seat RIngs316 Stainless Steel Plug and Seat Rings HardfacedFor availability of other alloys consult factoryCritical flow factor FLFull area trim FL= factor trim FL= MaterialRemarksCrane 285K PTFE w/Aramid Core-20 F to 450 FFlexible Graphite450 F to 800 FChesterton 324 (100% Teflon Ring)-20 F to 450 FBody Materials and End ConnectionsBody MaterialEnd ConnectionsSize (in.). IronANSI Class 125 Flat Face Flange Carbon Steel &St. availability of otheralloys consult factoryANSI Class 150 Raised Face Flange ANSI Class 300 Raised Face Flange ANSI Class 600 Raised Face Flange ANSI Class 600 Threaded Ring Type Joint Butt Weld Socket Weld Flow Coefficients - Rated CVTrim SizeSize (in.)

5 Factor SD - 09/96 Models 525 and 526 Pressure Regulators4 Regulator Capacity InletPressurepsigOutletPressurepsigSize (in.). - - - - - - - - - 9097521003150730012200190002700044000100 8651900285066001100017600240004000012573 0160024005600970014500200003300016042591 0142032405500810011600192002005 - - - 1301350290045001000017000260003650061000 160115024503750850014400222003050051000 Regulatory Capacity Tables are included to provide convenience on common application limitations. If your particular serviceconditions are not listed in the Regulator Capacity Table, calculate the required Cvfor selecting the correct regulator size. This Regulator Capacity Table is based on full area trim.

6 Multiply capacity by when using ( ) factor Steam (lb/hr) - Full Area Trim CY5256 SD - 09/96 Models 525 and 526 Pressure Regulators5 Regulator Capacity InletPressurepsigOutletPressurepsigSize (in.). - - - - - - - - - 9032571010802450485063008950146001002956 4597022503750570080001300012525054082519 0032004850680011500160140310470110018502 800400066002005 - - - 1304459751460335057008550122001990016039 083013002950500073501050017000 Regulatory Capacity Tables are included to provide convenience on common application limitations. If your particular serviceconditions are not listed in the Regulator Capacity Table, calculate the required Cvfor selecting the correct regulator size.

7 This Regulator Capacity Table is based on full area trim. Multiply capacity by when using ( ) factor (scfm) - Full Area Trim CY5256 SD - 09/96 Models 525 and 526 Pressure Regulators6 Regulator Capacity Pressure Drop InletPressure Minus Outlet PressureSize (in.). Regulatory Capacity Tables are included to provide convenience on common application limitations. If your particular serviceconditions are not listed in the Regulator Capacity Table, calculate the required Cvfor selecting the correct regulator size. This Regulator Capacity Table is based on full area trim. Multiply capacity by when using ( ) factor (gpm) - Full Area Trim CY5256 SD - 09/96 Models 525 and 526 Pressure Regulators7 MaterialsModel 525 Reducing RegulatorModel 525-50 Differential Pressure Reducing RegulatorModel 526 Back Pressure RegulatorModel 526-50 Differential Back Pressure Range-20 F 450 F 800 F DescriptionMaterials1 BodyCast Iron ASTM A126 CL 8 Carbon Steel ASTM A216 Gr WCB316 Stainless Steel2 SeatRingsLarge Bore316 Stainless Steel316 Stainless Steel Hardfaced3 Small Bore316 Stainless

8 Steel316 Stainless Steel Hardfaced4 Plug316 Stainless Steel316 Stainless Steel Hardfaced5 Plug Stem316 Stainless Steel6 Plug Stop7 Plug Stop Pin8 Plug Pin9 BlindheadCarbon Steel10 Bonnet11 Drive Nut12 Packing Follower303 Stainless Steel13 Packing FlangeCarbon Steel14 Packing Flange Studs304 Stainless Steel15 Packing Flange Stud Nuts16 PackingCrane 285K PTFE w/Aramid CoreFlexible GraphiteChesterton 324 (100% Teflon)17 Lantern Ring303 Stainless Steel18 Stem LocknutsCarbon Steel19 Body StudsChrome Molybdenum Alloy Steel (Steel Bodies)20 Body Cap ScrewsCarbon Steel (Iron Bodies)21 Body Stud NutsCarbon Steel (Steel Bodies)22 Body Gasket304 Stainless Steel w/Graphite Filler Spiral Wound23 Guide BushingType 440C Stainless SteelNOTE:The Plug stop (Ref.)

9 6) and plug stop pin (Ref. 7) are installed in the bottom of the plug on Model 526 back pressure regulators withthe 10900 Series Actuators No. 31 2case (80-250 psi range) and No. 4 case (60-125 psi range) to prevent overtravel. CY5256 SD - 09/96 Models 525 and 526 Pressure Regulators8 Dimensions (in.)Size (in.)ANSI ClassBC125150 Flanged300 Flanged600 Flanged600RT JointThreadedSocket SD - 09/96 Models 525 and 526 Pressure Regulators9 Approximate Shipping Weights (lbs.)Size (in.)ANSI Class125 Iron150300 Steel600 Threaded Butt WeldSocket Diff. Actuators add 25 Diff. Actuators add 35 with Spring Diaphragm ActuatorCY5256 SD - 09/96 Models 525 and 526 Pressure Regulators10 NotesCY5256 SD - 09/96 Models 525 and 526 Pressure Regulators11 NotesSales Office LocationsCY5256 SD - 09/96 Models 525 and 526 Pressure RegulatorsCopyright 2006 Dresser, Inc.

10 All rights Valve India Pvt. , Midas , Sahar PlazaMathurdas Vasanji Nagar, Andheri EastMumbai, 400059, IndiaPhone:+91-22-8354790 Fax:+91-22-8354791 Dresser Valve India Pvt. , Mohta Building4 Bhikaiji Cama PlaceNew Delhi, 110 066, IndiaPhone:+91-11-2-6164175 Fax:+91-11-5-1659635 ITALYD resser Italia OperationsVia Cassano, 7780020 Casavatore, Napoli ItalyPhone:+39-081-7892-111 Fax:+39-081-7892-208 JAPANN iigata Masoneilan Co. Ltd. (NIMCO)20th Floor, Marive East TowerWBG 2-6 Nakase, Mihama-ku,Chiba-shi, Chiba 261-7120 JapanPhone:+81-43-297-9222 Fax:+81-43-299-1115 KOREAD resser Korea Kuk Dong Building60-1, ChoongMoo-ro 3-kaJoong-gu, Seoul, Korea 100-705 Phone:+82-2-2274-0748 Fax:+82-2-2274-0720 KUWAITD resser Flow SolutionsMiddle East Operations10th Floor, Al Rashed ComplexFahad Salem Street, Box 242 Safat, 13003, KuwaitPhone:+965-9061157 Fax:+965-3987879 MALAYSIAD resser Flow SolutionsBusiness Suite, 19A-9-1, Level 9 UOA Centre, No.