Grease the threads of the union nut and the screw sleeve with HANSA-FLEX assembly grease. Continue turning union nut about 1/2 turn with the spanner. Thread the union nut onto the screw fitting until the force required to turn it* increases noticeably. Grease the threads of the union nut and the screw sleeve with HANSA-FLEX assembly grease.Please direct enquiries to the Application Technology department. The various screw-in shapes should be noted, deviations may occur under certain circumstances. The pressure ranges indicated are based on the connector shape.
PIPE CONNECTOR ISO
However, HANSA-FLEX cutting ring ttings are designed in such a way that the pressure values required according to DIN EN ISO 8434-1 are exceeded. It should be noted that this safety factor is contingent on error-free assembly and correct routing of the pipeline system. Flare ttings conforming to ISO 8434-2 also have a safety factor of 4. With this indication of the PN nominal pressure, HANSA-FLEX cutting ring ttings o er a quad-ruple safety factor. The PN designation is used internationally.
The nominal pressure, PN, is merely an index that serves as an identi er or designator for a part or system. Information about ttings often includes the nominal pressure, designated PN.
PIPE CONNECTOR SERIES
The HANSA-FLEX range of fittings is divided into three series according to pressure level and application: Operating pressure of 24°- cutting ring fittings Cutting rings with elasto- mer seal work according to the same functional principle, but they are furnished with additional elastomer seals to increase operating reliability further still.ĩ. When the assembly instructions are followed, repeat ttings can be carried out safely and reliably. This spring e ect damps vibrations and increases the resistance of the tting to alternating bending loads and surge pres- sures. The outer surfaces of the cutting ring transfer the active forces evenly over the entire sealing cone of the tting the in- ternal contour is shaped so that the cutting ring is wedged between the union nut and the screwed joint and serves as a spring-loaded element. In either case the cutting ring and its edges are moved axially as the union nut is tightened.Īs the cutting ring moves along a precisely de ned assembly path, its cutting edges are forced into the surface of the hydraulic pipe.Ī specially shaped limit ridge prevents overtightening, the pipe material that is raised in front of the edges is cold-hardened. They can be tted either into the screwed joint or into specially made devices. These important components in our line of hydraulic connecting equipment are stand- ardised according to DIN EN ISO 8434-1 and DIN 2353, and their geometrical shape serves to seal hydraulic pipes and ttings easily, reliably and safely. The cutting ring threaded connectors manufactured by HANSA-FLEX have been used successfully in practical applications for many years.
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