2013年9月29日星期日

Card sets of pipe joints assembly

Preloaded ① fittings fittings fittings fittings of the most important aspects of pre-installed, directly affects the reliability of the seal. Generally require a dedicated preheater. Small diameter connector can be pre-installed in a vise. In practice, with a connector as the parent, the nut, ferrule onto the tube can be pressed. There are card sets straight couplings, sleeve type end through turn heads, ferrule tube Hydraulic pipe fittings and other types. I found that even in the same factory shipment, these types of connector body tapered hole depth is often not the same, the result is caused by a leak, and this problem is often overlooked. The correct approach is, the pipe end what kind of connector body connection, the corresponding connection terminal is preloaded with the same type of connector, so to avoid possible leakage problems. ② pipe end should be flush. After sawing the pipe should be flush grinding wheel and other tools, and deburring, cleaning with high-pressure air to blow before use. ③ pre-installed, you should try to keep the tube and the coaxial connector body, if the pipe deflection is too large will cause seal failure. ④ preloaded force should not be too large so that the ferrule tube embedded in the outer wall just inside the edge, card sets shall have no deformation. During pipeline connection, then the provisions of the tightening force assembled. ф6-1 card sets tightening force is 64-1 15n, 16фmmr 259n, ф18mm for 450n. If the pre-deformed when the card holder will lose the seal. (Two). Prohibit adding sealant filler. It was sealed in order to achieve better results, ferrules, apply sealant, sealant was the result into the hydraulic system, hydraulic components causing blockage damping hole fault. (III). Connecting pipe should be sufficient deformation of the tube margin, to prevent the tube subjected to tensile strength. (Four). Connecting pipe should avoid subjecting it to lateral forces, lateral forces caused Mifengbuyan over the General Assembly. (Five). Connecting pipe should be a good one, to avoid multiple disassemble, otherwise it will seal performance deteriorated.

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