SPECIFICATION CUM DATA SHEET FOR CASTIRON PLUG VALVE Scope:This specification covers the minimum acceptable requirements for shortp attern cast iron tapered plug valves with flanged ends, confirming to there quirement of MSS SP-78. Type:2 to 12 Lubricated taper plug valve should be short pattern and wrench operated for 2 to 8 and gear & wheel operated for 12 sizes.  Lubricants:The plug valve should be furnished with the manufacturers lubricant and complete with combination lubricator.  Pressure & Temperature: Pressure in accordance with ANSIClass 125 Lb and the temperature range should be -20 Deg F to + 100 Deg F. Body Material: The body and plug material should confirm to ASTM A 126Class B and ASME B16.34 where not specified.  Valves Ends: Flanged end, flat face and drilled to match with class 150Lb ANSI B16.5 FF Flanges.  Face To Face Dimensions: Face to face dimensions of cast iron plug valve shall confirm to the requirements of current edition of ANSI B16.10. Finish: The exterior surface of the valves shall be coated with rust inhibiting paint.  Position Indicator: The valve shall have position indicators, indicating open,partially open and close position. Valve Design: The design of the valve shall ensure correct functioning and a tight shut off even through the gas may contain dust or condensate.  Plug: The surface of the plug should be PTFE based anti friction compoundt reated so as to prevent damage to the metal surface and also reduce friction between matting surface.  Fire Testing : Fire testing shall confirm for each size of valve to the requirements listed in the latest edition to API-6FA and a valid fire test certificate shall have to be submitted to qualify the complete range of the valves quoted. Valves qualified for fire safe test shall be proven in the natural gas service for aperiod of at least Five 05 years following the date of the test. A typical fire testing certificate shall be provided with the quotation for review.  Valve Inspection And Testing: The valve is to be inspected and tested in accordance with API-598. The test certificate shall be provided bythe manufacturer as per the requirements of API-6D, including shell test, seattest and air test Etc.  Quality Control Program: The manufacturer shall submit the following documents with the offer:- Marking: Marking on the valve shall be as per API-6D requirement.  Lubricant: The type of lubricant / sealant recommended and the lubricant / sealant hand gun should be specified and the prices are to be quoted separately.  Lifting Lugs: The lugs shall be provided for valves size 10 and above N.Bsize for handling & lifting of the valves.