Metric hydraulic Fitting

Metric hydraulic Fitting

The serial number of Metric hydraulic fitting is 20211/20241/20291, and the regular threads are M10*1 to M64*2. Our product has a flat cone seat, refer to GB/T 9065.3, the working pressure is about 200Bar to 400Bar due to different sizes. It is widely used in the connection of oil pipes.

Our Metric hydraulic fitting is made of high-quality raw material carbon steel Q235 or C45, and the inside part is smooth and flat without burrs, the surface treatment of zinc plating has made by rolling way of galvanization or rack plating, which has good looking and not easy to fall off, so our metric hydraulic fitting has good corrosion resistance and high temperature resistance. 

Except flat cone seal metric female as we mentioned above, there is also 24 degree cone seal Metric hydrualic fitting with code number 20411/20441/20491/20511/20541/20591, 60 degree cone seal with code No. 20711/20741/20791, as well as multi seal with code number 20111/20141/20191. 

Now we talk about the difference between Metric and Inch, as we know one foot is 8 inches, and 1 inch equals to 25.4 mm, the general diameter N15 is the outside diameter of 1/2” tube, N20 is the outside diameter of 3/4” tube, and so on. For air coupler, there is no indication for detailed teeth spec, while we can find detailed OD of the tube, generally speaking, they are 1/8PT, 1/4PT, 3/8PT, 1/2PT, and the OD of 1/8PT is 9.4~9.8MM, 1/4PT is 12.6 mm ~13.6MM, 3/8PT is 16.4~16.8MM, 1/2PT is 20~21MM, we can identity them just by their OD.

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