Advantages:
1. Low cost and Antioxidant: It doesn’t exist the quality
risk that copper-aluminum connecting pipe both ends and the valve
contact is easy to produce the oxidation and corrosion, the
material for two ends of copper and aluminum pipe is copper, to
avoid this problem from occurring, to achieve a lower cost of
purpose.
2. Long Life, the outer surface of copper-aluminum connecting
pipe used cross-linked polyethylene (pyrocondensation pipe)
antiseptic treatment to ensure the separation of water and moist
air on the corrosion of aluminum tubes, life is more than 20 years.
3. Both sides connected to the valve is copper, the
connection will not have any effect. Construction of facilities,
and all brass lighter than 1 / 3, easy handling, excellent bending
properties, easy to install and movement.
4. The outer protective film of Copper and aluminum tube has a
strong anticorrosion ability
Technical Index:
Inside and outside of the welding parts are prohibited have the
tumor surface, cracks, holes, impurities, such as welding defects
Pressure: test pressure 4.9MPa, packing 5min, pipeline leaks and
cracking phenomenon may not occur.
Airtightness by root test, test pressure 2.0MPa, 10s should
not be packing bubbles
Canal cleanliness: inner surface, the sum of residual
impurities30mg/m2
Salt spray test, no corrosion at room temperature 500h
Welded joints of the mechanical properties: Tensile strength
:60-118MPa. Elongation: 1018%
