IMO-R26
EN •
2/2019
Jamesbury® Tank Car Ball Valve
Inspection Procedure
Installation, Maintenance and
Operating Instructions
Page 1: ...IMO R26 EN 2 2019 Jamesbury Tank Car Ball Valve Inspection Procedure Installation Maintenance and Operating Instructions ...
Page 2: ...bers are printed on the back cover See also www metso com products valves tank car valves for the latest documentation SAVE THESE INSTRUCTIONS Subject to change without notice All trademarks are property of their respective owners TABLE OF CONTENTS 1 SCOPE 3 2 WARNINGS 3 3 GENERAL 3 4 VALVE CLEANING 3 5 GENERAL VALVE INSPECTION 3 5 1 Sealing Area Criteria 3 6 DETAILED INSPECTION OFVALVE COMPONENTS...
Page 3: ...ting shall be used when inspecting parts Inspection mirrors may be used to achieve necessary angle of view Sealing Surfaces are areas on the valve components which arecriticaltothevalvesealingperformance Sealingsurfaces are shown in Figures 2 through 5 Seat sealing critical areas are the portion of the sealing surface defined in Figure 6 No damage as defined in sealing area criteria 5 1 shall be a...
Page 4: ...Material which has been raised up or deformed is not acceptable and considered damage Any other damage in the non working zone is acceptable 6 2 Stem Sealing and functional surfaces are shown in Figure 2 Visually inspect stem for galling No galling is allowed Visually inspect packing or stem seal area and thrust bearing area sealing surfaces No damage is allowed in these areas If stem has threads ...
Page 5: ... If equipped with NPT threads visually inspect and gage threads for damage If insert threads into body visually inspect the threads for damage Dry fit insert into the body thread to check fit Visually inspect the sealing surface between the valve and tank car for damage Figure 3 Typical Insert Sealing and Functional Areas Figure 4 Typical Cap Sealing and Functional Areas See Figure 6 See Figure 6 ...
Page 6: ... damage If the body has threaded fasteners gage the threads for damage Replace any fastener where the threads are damaged or have been heated stretched or corroded Figure 5 Typical Body Sealing and Functional Areas See Figure 6 LEGEND Seal Surface Solid Line Functional Surface 6 4 1 Seat to Body Sealing Area The seat seal against the body occurs at the transition of the angle on the back of the se...
Page 7: ...hur Service 4 0 320 0 398 6 4 2 Remediating Damage Body and Cap Insert sealing areas may be dressed by hand with 600 grit minimum sandpaper or equivalent so long as it is applied concentric to the seal and not across the sealing area For seat sealing areas that cannot be restored by hand dressing a one time machining allowance of 0 010 inches is provided on the overall seat cavity This allowance m...
Page 8: ...atches the tank car mounting interface on which the valve will be installed Outboard fixture is a flange or fixture that seals against the outboard valve interface Test fixtures hoses fittings etc shall be clean to prevent introducing debris during testing 7 1 2 Gaskets Metso recommends testing with same gasket that will be used to install the valve on the tank car Use of non standard gaskets or o...
