4" ball vavle (for steel pipe network) blocked
4" ball vavle (for steel pipe network) blocked
(OP)
We recently found that a buried ball valve (welded on a steel pipe network) can not be manouvered, even with very high torque. It is blocked in open position. The pipe pressure is about 48 bar.
Hopefully the valve is not in critical position. We can just forget about it, because there are others in front and after the mentioned valve.
Fortunately, the ball valve has grease fittings, so we plan to put some thin grease as a first step.
Any ideas for the second (if the first one does not help)?
Thank you in advance
Costas
Hopefully the valve is not in critical position. We can just forget about it, because there are others in front and after the mentioned valve.
Fortunately, the ball valve has grease fittings, so we plan to put some thin grease as a first step.
Any ideas for the second (if the first one does not help)?
Thank you in advance
Costas





RE: 4" ball vavle (for steel pipe network) blocked
What brand name is the valve. What is the size?
TB
RE: 4" ball vavle (for steel pipe network) blocked
Supplier: Petrovalves
Serial No. : KO206
Costas
RE: 4" ball vavle (for steel pipe network) blocked
Costas
RE: 4" ball vavle (for steel pipe network) blocked
Any comment/idea will be apreciated.
Costas