Parameter

Material: Stainless steelWorking temperature: -40D°~150°CWorking pressure: <=40MPaFunction: hole sealModel: KXQD03-KXQD22Scope of application: automobile, cylinder, pumpProperties: high temperature resistance, wear resistance, corrosion resistance, high pressure resistanceWorking principle: When the steel ball is pressed into the bottom of the sleeve, radial expansion occurs, so that a segment of annular groove teeth is pressed into the workpiece, forming a mechanical engagement between metal and metal, thereby obtaining sealing.Advantages: No tapping, gaskets, sealants, etc. required. High installation efficiency and low price.

Installation Notes:

1. Before installationThe installed material must be inspected for defects such as looseness, cracks, lock holes, etc.2. Mounting hole materialDuctile iron, gray cast iron, alloy steel, carbon steel, copper, copper alloy, high-strength aluminum alloy.3. Before installation and removal① When using it for the first time, it should be tested whether the pressure resistance and sealing performance meet the requirements of the system or the original.②If there are parallel precision holes, the wall thickness should be larger than the outer diameter of the plug.③ Check the installation holes for defects such as looseness, cracks, lock holes, etc., if any, it cannot be installed.④If the plug needs to be removed, it can be drilled with a cemented carbide drill bit. When the diameter is greater than 6mm, it can be removed in stages. When resealing, a slightly larger plug is required.⑤ The wall thickness of the mounting hole cannot be less than the outer diameter of the plug.4. Technical performanceIn the original hydraulic pneumatic system whose maximum working pressure is within 45MPa.Working temperature -40-150℃

Mounting hole processing technology and roughness requirements

1. First determine the size and position of the mounting holes, and then process a set of stepped holes according to the size.2. Drilling or reaming process should be adopted for installation hole processing.3. The material and process of the mounting hole need to meet the following requirements:Mechanical properties of materials1. The tensile strength is within 25MPa-1000MPa.2. The hardness is within 15HBW-250HBW.Processing technical requirements:a. The roughness of the hole wall is between Ra3.2-6.3b. The aperture tolerance is between 0-0.05mmc. The roundness error of the hole t<=0.05mm

Installation Steps

1. When plugging, put the plug (the spherical surface is upward), andpress it into the sleeve with a hammer or punch and lower the surfaceprofile of the sleeve. (as the picture shows)2. Note: Before installation, avoid oil stains, stains, etc. in the sleeve