Installation, Operation and Maintenance T-41/T-43 …

1 T-41/ T-43 and ST-41/ST-43 PTFE-LINED VALVESThe No. 1 Lined Valve in the CPIQ uality SystemCertificateBulletin V-171c installation , Operation and Maintenance3 FOREWORDF lowserve Corporation, Flow Control Division hasestablished this installation , Operating, and MaintenanceManual to facilitate the installation , Operation and repair ofT-41 and T-43 is recommended that questions or concerns involving theprocesses described in this manual be directed to the localSales Representative of the Flowserve Corporation. OnlyFlowserve replacement repair parts and assembly toolingFlow Control DivisionSection or designed by Flowserve Corporation should beused. Part numbers referenced in the following sections areavailable from Flowserve Corporation, Flow Control can also contact Flowserve directly by writing to:Flowserve CorporationFlow Control Box 2609 Cookeville, TN 38502-2609 TABLE OF Instructions.

2 Disassembly .. Assembly.. installation .. Spare Parts & Parts List .. 9-10 Material SelectionSelecting the proper fastener material is the ultimateresponsibility of the customer because the supplier does nottypically know in what service the valves will be used or whatelements may be present in the environment. Flowservenormally supplies B7 (carbon steel) for ductile cast iron andcarbon steel valves. For stainless steel and high alloy valves,B8 (stainless steel) fasteners are supplied as standard. Allfasteners used must have a minimum yield strength of40,000 PSI, a minimum elongation of 12% and be com-patible with the process fluid. Determining compatibility tothe process fluid goes beyond a material being resistant togeneral corrosion because the more important considerationis a material s resistance to stress corrosion on the service, it may make sense to use B7fasteners on high alloy valves.

3 One such service would bemarine environments because of stainless steel s suscep-tibility to stress corrosion cracking in chloride key aspect of fasteners is frequent visual of the common practice of using steel fastenersrather than stainless steel to avoid chloride stress corrosioncracking, visual inspection is recommended to monitor thegeneral corrosion of these fasteners. If jacketing or insulationis used on a valve, it must be periodically removed for visualinspection of the fasteners. If you wish assistance indetermining the proper fasteners to use, please refer to theattached chart or contact Flowserve s Materials EngineeringGroup at (937) & TypeFlowserve s valve design standards adopt ANSI (1981) as the standard for fastener type and design. Thisnational standard requires that finished hex head capscrews be used with the head of the fastener is turned.

4 Afinished hex head cap screw and a heavy hex cap screwhave a bearing surface under the head to minimize frictionalresistance during tightening. They also comply to qualifiedbody dimensions and fully formed head dimensions. FlowControl Division s policy is to use finished hex head andheavy hex head cap screws for all pressure retainingfasteners. This includes top caps, packing adjusters, plugadjusters, bottom caps, body halves or other pressureretaining components. Compliance is made with (1987), Square and Hex Nuts, when studs and heavyhex nuts are required. Additional information on these itemsmay be obtained from Flowserve Corporation, Flow ControlDivision, Cookeville, CONTAINING FASTENERS4 Flow Control DivisionSection 1 CAP SCREWS - STUDSHHCS - Finished Heavy Hex Head Cap ScrewHCS - Finished Hex Head Cap ScrewSTUD - StudDimensions per ANSI -304 Stainless Steel per ASTM A193, Grade B8, Class 1, 40 KSI Min.

5 Yield Strength, 12% Min. -Chromium - Molybdenum Alloy Steel per ASTM A193, Grade B7B7M -Chromium - Molybdenum Alloy Steel per ASTM A193, Grade B7M, 100% hardness testedB7MT -Chromium - Molybdenum Alloy Steel per ASTM A193, Grade B7M, 100% hardness tested, PTFE coated, Dupont SP11C, Type B - Color blue orgreenB8M - 316 Stainless Steel per ASTM A193, Grade B8M, Class 1, 40 KSI Min. Yield Strength, 12% Min. -304 Stainless Steel per ASTM A193, Grade B8, Class 2C20 - Carpenter C20, CB-3 (UNS N08020), ASTM B473, 40 KSI Min. Yield Strength, 12% Min. -Hastelloy C276 (UNS N10276), ASTM B574I625 -Inconel 625 (UNS N006625), ASTM B446I825 -Incoloy 825 (UNS N08825), ASTM B425, 40 KSI Min. Yield Strength, 12% Min. -Inconel 600 (UNS N0660), ASTM B166, 40 KSI Min. Yield Strength, 12% Min. -Monel (UNS N04400), ASTM B164, Class A or B, 40 KSI Min. Yield Strength, 12% Min.

6 -Hastelloy B (UNS 10665), ASTM B335I718 -Incoloy 718, AMS 5596 BMKH - Monel K-500, Cold drawn and aged hardened, QQN-286 and ASTM F468L7 - Chromium-Molybdenum Alloy Steel per ASTM A320, Grade L7L7M -Chromium-Molybdenum Alloy Steel per ASTM A320, Grade L7M, 100% hardness testedL7T -Chromium-Molybdenum Alloy Steel per ASTM A320, Grade L7, PTFE coated, DuPont SP11C, Type B - Color blue or greenL7MT -Chromium-Molybdenum Alloy Steel per ASTM A320, Grade L7M, 100% hardness tested, PTFE coated, DuPont SP11C, Type B - Color blue orgreenN -Nickel per ASTM B160 (UNS N0220), 40 KSI Min. Yield Strength, 12% Min. -Chromium-Molybdenum Steel per A193, Grade B7, Yellow Zinc Dichromate PlatedTABLE 2 NUTSHN -Finished Heavy Hex NutXN -Finished Hex NutHXN -Regular Heavy Hex Nut8 -304 Stainless Steel per ASTM A194, Grade 88M -316 Stainless Steel per ASTM A194, Grade 8M2H -ASTM A194, Grade 2H2HM -ASTM A194, Grade 2HM7M -ASTM A194, Grade 7M, 100% hardness tested7MT -ASTM A194, Grade 7M, 100% hardness tested, PTFE coated, DuPont SP11C, Type B - Color blue or greenM -Monel (UNS N04400), ASTM B164, Class A or B, or QQN-281, Class BHB -Hastelloy B (UNS N10665), ASTM B335HC -Hastelloy C276 (UNS N10276), ASTM B574I625 -Inconel 625 (UNS N06625), ASTM B446I718 -Incoloy 718, AMS 5596BI825 -Incoloy 825 (UNS N08825)

7 , ASTM B425L7 -Chromium-Molybdenum Alloy Steel per ASTM A194, Grade 7L7M -Chromium-Molybdenum Alloy Steel per ASTM A194, Grade 7M, 235 BHN Max, ASTM A320, Section 9 MKH - Monel K-500, Cold drawn and aged hardened, QQN-286 and ASTM F4678F -303 Stainless Steel per ASTM A194, Grade 8F2 HYC -ASTM A194, Grade 2H, Yellow Zinc Dichromate PlatedAlloy identification stamp required on each Specification (40 KSI Minimum Yield Strength, 12% Minimum El.)Dimensions per ANSI identification stamp is required on each PartsThe use of parts and components other than thosesupplied by Flowserve Corporationcould severely restrictthe Operation and performance of this valve. Unauthorizedmodifications or substitution of components can lead tovalve failuredue to corrosion and/or premature failureofthe substituted , installation , Operation and MaintenanceFlowserve Corporation has established industry leader-ship in the design and manufacture of its products.

8 Whenproperly selected, each product is designed to perform itsintended function safely during its useful service , it is necessary that Flowserve s customers befully aware of their responsibilities when using Flowserve product may be used in numerousapplications under a wide variety of industrial serviceconditions. Although Flowserve can, and often does,provide general guidelines, it is obviously not possible toprovide application specific data and warnings for allconceivable applications. The purchaser/end user musttherefore assume the ultimate responsibility for the properselection, installation , Operation and Maintenance of theproducts. Read the appropriate IOM before installing,operating or repairing any valve. The purchaser/end usershould train its employees and/or contractors in the safeuse of the Flowserve products in connection with thepurchaser s manufacturing processes.

9 Flowserve will continue to provide its customers withthe best possible products and service available. We donot recommend substituting surplus or remanufacturedvalves over new Flowserve valves or those repaired in anauthorized service center. Should you have any questionsabout these provisions or about Flowserve s products ingeneral, please contact your local Flowserve represen-tative, who will be happy to NOTES ABOUT YOUR WARRANTY AND SAFETYSECTION IInstallation protective flange covers provided on each valveshould remain in place during any storage or are not required for the T-Line valve since thevalve liner itself forms a gasket on both flange may be used, however, for protection of theliner where frequent disassembly of the associatedpiping may be required. Gaskets are recommendedwhen the valve is to be installed between smooth face(ground or rigid plastic) or glass lined pipe should be used to protect the valve liner andcoated plug (where appropriate) from damage installing the valve between flanges, care shouldbe exercised to note that the valve liner not be allowedto catch on the pipe and fold over.

10 This will causesevere liner damage and result in flange tightening the flange bolts, normal wrenchtorque may be used without fear of damage to thevalve or not run sharp instruments between the valve bodyand the liner, the liner and the pipe, or between theplug and the liner. This practice will result in severeliner and/or plug as shipped are adjusted and pneumaticallytested to hold (T-41) 1/2"-8" 150 PSI/(T-43) 1"-6"300 adjustment at installation should not be requiredand is not recommended. Increased operating torquewill is imperative that top cap fasteners be re-torquedprior to installation . (See Table I, page 6.)SPECIAL NOTE:Consult the piping specifications forproper flange torque and installation procedures. Over-torquing may damage the gasket surface. When matingdissimilar materials, use the lower torque may require adjustment to remain drop tight whenoperating at the lower end of the temperature range or onextreme temperature Control DivisionSection WARNINGTo avoid personal injury and prevent damage toequipment, do not operate or repair this valvewithout observing the following procedures outlined in this manual.