design closed coil helical spring for a boiler safety valve which is required to
ID: 2996988 • Letter: D
Question
design closed coil helical spring for a boiler safety valve which is required to blow off steam at a pressure of 2 N/mm^2 . The diameter of the valve is 50 mm . The initial compression of the spring is 40 mm and the lift is limited to 20 mm. Material of manufacture is oil tempered unalloyed steel with constant A = 1880 and exponent m = 0.186design closed coil helical spring for a boiler safety valve which is required to blow off steam at a pressure of 2 N/mm^2 . The diameter of the valve is 50 mm . The initial compression of the spring is 40 mm and the lift is limited to 20 mm. Material of manufacture is oil tempered unalloyed steel with constant A = 1880 and exponent m = 0.186
Explanation / Answer
DESIGN OF MACHINE ELEMENTS - KAMLESH PUROHIT, C. S. SHARMA - Google Books
page no 312
refhttp://books.google.co.in/books?id=ZlnYpOtRhNEC&pg=PA312&dq=design+closed+coil+helical+spring+for+a+boiler+safety+valve+which+is+required+to+blow+off+steam+at+a+pressure+of+2+N/mm%5E2+.+The+diameter+of+the+valve+is+50+mm+.&hl=en&sa=X&ei=L68IVO_7B9WgugTazoC4Dg&ved=0CCYQ6AEwAA#v=onepage&q=design%20closed%20coil%20helical%20spring%20for%20a%20boiler%20safety%20valve%20which%20is%20required%20to%20blow%20off%20steam%20at%20a%20pressure%20of%202%20N%2Fmm%5E2%20.%20The%20diameter%20of%20the%20valve%20is%2050%20mm%20.&f=false
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