Assembling card sets of pipe joints

① preinstalled card sets of pipe joints most important link pre directly affect the reliability of the seal. Generally require a dedicated preheater. Small diameter joints can be pre-installed on the vise. In practice, as a parent with a connector, the nut, ferrule can be pressed onto the tube. There are straight pipe joints card sets, card sets - Straight turning heads, bite type stainless steel bsp fittings and other types. It found that even in the same factory shipment, these types of joint body tapered hole depth is often not identical result is a leak, but this issue is often overlooked. The correct approach is the tube end what kind of connector body, connecting terminal corresponding with the same type of connector is pre-installed, so can maximize avoid leakage problems. ② pipe end should be flush. After sawing the pipe should be ground flush on the wheel, and other tools, and deburring, cleaning with high-pressure air blowing before use. When ③ preinstalled, should be kept coaxial tube and connector body, if the tube is too large can cause skew seal failure. ④ preloaded force should not be too much of the inner edge of the ferrule just embedded in the outer wall of the tubes, ferrules should not have significant deformation. When making pipe connections, then the provisions of the tightening force assembly. ф6-1 ferrule tightening force is 64-1 15n, 16фmmr 259n, ф18mm to 450n. If, at the pre-card sets severe deformation, it will lose seal.