Fittings include threaded fittings (eg, fuel tank to filter delivery tubing, etc.) and tapered surface fittings (eg, high pressure tubing ends, etc.). Caused by the leakage of hollow threaded pipe fittings are: the contact surface of the connector has drawn marks, uneven, or dirt impurities, or damage to the gasket, or the flat surface of the hollow nut pipe fittings and screw holes on the mounting shell. Improper installation or unscrewed nuts can also cause leakage. Remedy: Grind the contact surface with sandpaper or oil stone, remove impurities and impurities, replace the damaged gasket, grind the hollow thread plane and screw holes on the housing with a file or sandpaper, and mill on a special machine if necessary. Sealing pads should be cleaned and placed when assembled and nuts should be tightened evenly.
Cone-joint pipe joint leakage causes: oil pipe joints wear, deformation or cracks, or seal damage, deformation, or improper installation, sliding buckle, nuts are not tightened. Remedy: Saw out the worn or deformed tubing joints and re-weld a pipe joint; replace the damaged seals, or use a thin wire to wrap the tubing; the screw slide fastener should be replaced with new ones, and can also be repaired by double buckles When installing, care should be taken to clean and place the nuts evenly.
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