Flange disc diameter is 25 mm above the metal hose connector

Flange disc diameter of 25 mm above the metal hose joint , to withstand normal working pressure in the case in the main flange disc ( see Figure 2-5c). It fit the form of tongue and groove seal . Rotating a radial direction , but also axially slidable flange looper tension force of Hydraulic pipe fittings fastening bolts to connect two bodies . This structure sealing performance is good, but difficult process, the sealing surface is easy to bruise . Quick release is required for special occasions , you can tighten the bolts through the holes cut open , made ​​of quick-release flange .