Card sets of pipe joints assembly

(a) pre-installed ① type tube fittings preinstalled most important aspects of a direct impact on the reliability of sealing. 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 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, Hydraulic tube fittingsHydraulic tube fittings 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 Jic hydraulic fittings Jic hydraulic fittings 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, apply sealant v Hydraulic ferrules, the results sealant being washed 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 Mifengbuya Hydraulic pipe fittings Hydraulic pipe fittings Assembly.
(Five). Connecting pipe should be a good one, to avoid multiple disassemble, otherwise it will seal performance deteriorated.
Ferrule tube fitting installation (1) according to Chapter 9 requires the need for pickling pickling pipes should be; (2) according to the required length by sawing or dedicated pipe cutter pipe cutting machines, etc., and definitely not with Fusing ( such as flame cutting) or grinding wheel cutting; remove the pipe ends inside and outside round burrs, metal chips and dirt; fittings rust removing agents dirt; while also ensuring tube roundness; (3) the nut, ferrule has set into the tube , ferrule front edge (small-diameter end) from the tube mouth at least 3mm, then the pipe intoHydraulic adaptersHydraulic adapters tapered bore, top to date; (4) Slowly tighten the nut, turn the tube until it does not move, and then tighten the nuts 2 / 3 to 4/3 laps; (5) open the inspection has been cut into the pipe sleeve, the location is correct. Card sets are not allowed axial movement can be slightly rotated; (6) Tighten the nuts again after passing the examination.