Large Valve Single Device Isolation Problems & Solutions

More documents

Recommendations

Info

What is KCBL experience with SDI? Gates Valves Stoplogs 52 28 19
Typical SDI Valve Problems • Cracked Casting Hole Cover Plate Welds. • Leaking Seals – particularly metal to metal seals • Corroded Surfaces • Inadequate lockout schemes – blocking devices
Page 1 and 2: Large Valve Single Device Isolation
Page 3: What is required for SDI Certificat
Page 7 and 8: 13 Ft. Dia. Butterfly Valve
Page 9 and 10: Failed plug in a Spherical Valve
Page 11 and 12: Typical Cracked Weld
Page 13 and 14: Crack % % Cracked Welds vs. Valve D
Page 15 and 16: Preliminary Observation • Cast va
Page 17 and 18: How To Fix The Crack!
Page 19 and 20: 13 Ft. Dia. Butterfly Valve
Page 21 and 22: Cover Plate Weld Conclusions • Ca
Page 23 and 24: Original seal design
Page 25 and 26: New Seals Being Installed
Page 27 and 28: Leakage Through New Seals
Page 29: The End (time to wake up!) Dan Camp

Large Valve Single Device Isolation Problems & Solutions

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?