NYLON TUBE
AUTO HYDRAULIC PRESSURE BRAKE PIPES
TURBOCHARGER OIL INTO
CYLINDER PIN & GEAR SHAFT
BALL VALVE CATEGORY
SWITCH CATEGORY
JOINTS & OTHER CLASS
SEAMLESS METAL TUBE
HOSE HOOPS
PP-R PIPES
PP-R FITTINGS
ALUMINUM-PLASTIC PP-R FITTINGS
NYLON PLASTIC PIPE JOINTS
ALUMINUM-PLASTIC COMPOUND PRESSURE PIPE
BRESS FITTINGS JOINT WITH
WATER-WARM FITTINGS
TO WARM JOINTS
CROSS LINKAGE EDG ASSEMBBLY
SHIP ACCESSORIES

 

 
>> PP-R PIPES
Quality characteristics
PP-R III potypropylene (tracktess co-polypylene)
According to the stipulation of GB/T18742.2-2002 standard
Having the foLlowing properties
Density: 0.90g/cm3
Melting piont:140℃
Biggest extending strength: 40N/mm2
Extending shape-changing: 800%
E elasticity model quantity (20℃): 800N/mm
Specific heat: 2KJ/kg℃
Thermal properties: 0.24W/m℃
Thermal expansion coefficient: 0.16mm/m℃
    Trackless co-polypylene-polypylene and ethylene are co-single one ,ethylene molecule is handy over in co-polypylene chain, high-strength material, whose using Life in hot fire with 50 years. Its typical using: used in cold or heated pipe systems.
S choice of PP-R pipe series
Design pressure，MPa
S choice of Pipe series
Level1
（Hot water supply60℃）		 Level2
（Hot water supply60℃）		 Level4
（Low temperature floor heating and radiator heating）		 Level5
（High temperature radiator heating）
0.4
5 5 5 3.2
0.6
5 3.2 5 2.0
0.8
3.2 2.5 4 /
1.0
2.5 2.0 3.2  
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