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decentralized API 5CT N80
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Buckle, tightening and decentralized API 5CT N80
(1) in preparing for the button before, wire protecting API 5CT N80 end shall not be unloaded.
(2) on the button before entire surface to coat the thread, thread. For brush or appliance with screw grease no foreign body; at the same time, the thread fat not dilution.
(3) on the buckle, care should be taken to API 5CT N80, so as not to damage the thread, should be vertical to buckle, suggested by API 5CT N80 stood in the centralizer on centralizer. If the button, API 5CT N80 column tilted to one side, it should be up, cleaning and repair the damage of the screw with a triangle file, and then carefully remove any filings, and thread in the thread to the surface coated with grease. In the back, should first very slowly rotating API 5CT N80, in order to ensure thread normal engagement, not the wrong button. If you use a long cat line set, should be close to the collar pull.
(4) the use of power tongs is API 5CT N80, the need for each kind of specification, weight and steel grade API 5CT N80 using different torque values. The torque value is influenced by many variables, such as taper, pitch, tooth, tooth type, screw thread surface finish, thread type, length of thread, the weight and the steel grade and so on. Given the number of times and degree of change in these variables, either alone or combined action, will affect the relationship between the torque value and the tightening position. Because API 5CT N80 torque variations exist so many factors, therefore recommended torque value should be considered only as a guide for. Because of this, it is necessary to put forward the following the tightening and shackle the scene in API 5CT N80 fastening position and torque link. Listed in this manual torque values for galvanized or phosphating coupling of API 5CT N80.
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