Insulation joint insulation joint is an important component for the cathodic protection of pipeline in order to prevent electrical erosion, and it is a replacement product for insulation flange developed jointly by our factory and related design institutes. It is higher than the insulation flange stiffness, can withstand bending moment, high insulation function, long life, and can be buried installation.

1, the main technical parameters 1, combined medium: oil, gas, water, pulp, etc. 2, combined temperature: -40 ℃ ~ 100℃ 3, pressure range: PN≤10MPa 4, product specifications: DN40mm ~ DN1000mm

1, national patent product, patent number: ZL97203819.1 2, good insulation, insulation resistance ≥10M ω 3, withstand bending moment, and pipeline strength. 4. Long service life. 5, can be buried installation. Classification of insulation joints:

Rail insulation joint: a high-strength rail insulation joint, which is placed at the end of the two connecting rails, and the groove insulation board is clamped on both sides of the joint, two reinforced fish tail plates are installed in the groove of the insulation board, and then the high-strength bolts are inserted into the reserved hole of the joint and tightened. The first insulation board is network glass cloth trough insulation board, its first, three, five, seven layers of paste insulation glue, the second and sixth layers of network glass cloth, the fourth layer of thickened glass cloth; The second insulation board is the electric heating plate groove insulation board, its first, third, fifth, seventh layer for the insulation film, the second and sixth layer for the glass cloth, the fourth layer for the hole of the electric heating sheet.

The integral insulation joint is composed of the following parts: upper and lower pipes, sleeves, insulating parts, seals and insulating coatings. The insulation parts and seals are clamped between the end faces of the upper and lower pipes of the insulation joint to form a double sealing structure with insulation function. The sleeve adopts two forms of groove welding or direct welding with the upper conduit to seal the insulating parts and the upper and lower pipes firmly in the inner surface to form a "sealed container", which not only ensures a good insulation effect, but also greatly improves the pressure bearing capacity of the insulation structure. Insulation joint manufacturing scale: SY/T0516-2008