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Kelly Valve (Kelly Cock Valve, Upper Kelly Valve, Lower Kelly Valve)
Kelly Valve Type:upper Kelly valve and lower Kelly valve Kelly Valveis also calledKelly Cock Valve , which is amanual control valvein drilling string cycle system. It is one of the effective tools for preventing blowout.Upper kelly cock is located at the |
2017-07-01 |
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Hydraulic Jar Tester
Hydraulic Jar Tester General The hydraulic jar tester is a necessary tool to test tensile strength and pressure performance of jars, shock absorber, jar intensifiers. It also can test the strength of thread connection. The hydraulic jar tester is designed |
2017-07-01 |
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