厦门科恒塑胶有限公司

xiamen keheng plastic co.,ltd

TECHNICAL
SUPPORT

Max Support Distance Requirement

Support distance of plastic pipes is more strictly requested than that of steel pipe. Operating temperature influence the distance. Please refer to the below charts:
3.1 UPVC Support Spacing Chart
Nominal Pipe Size
1/2″
3/4″
1″
1-1/4″
1-1/2″
2″
2-1/2″
3″
4″
6″
8″
Horizontal Pipes
500
550
650
800
950
1100
1200
1350
1550
1800
2400
Vertical Pipes
900
1000
1200
1400
1600
1800
2000
2200
2400
2700
3000

3.2 CPVC Support Spacing Chart
Nominal Pipe Size
1/2″
3/4″
1″
1-1/4″
1-1/2″
2″
2-1/2″
3″
4″
6″
8″
20℃
700
750
800
850
1000
1100
1250
1400
1650
1800
2000
40℃
650
700
750
800
950
1050
1200
1350
1500
1650
1800
60℃
600
650
700
750
900
1000
1100
1250
1350
1500
1650
80℃
550
600
650
700
800
900
1000
1100
1200
1350
1500
Vertical Pipes
1000
1100
1200
1400
1600
1800
2100
2400
2700
3000
3400

3.3 PPR/PPH Support Spacing Chart
3.3.1 Max distance for cold water pipes
Nominal Diameter
20
25
32
40
50
63
75
90
110
Horizontal pipes
650
800
950
1100
1250
1400
1500
1600
1900
Vertical pipes
1000
1200
1500
1700
1800
2000
2000
2100
2500

3.3.2 Max distance for hot water pipes
Nominal Diameter
20
25
32
40
50
63
75
90
110
Horizontal pipes
500
600
700
800
900
1000
1100
1200
1500
Vertical pipes
900
1000
1200
1400
1600
1700
1700
1800
2000

3.4 Spacing among water supply system, non-building structures, and other pipelines
 
Nonbuilding Structures
Other Pipelines
Railway
Building Line
Street Trees
Poles
Electric Wires
Gas Pipelines
Heating Pipelines
Sewage Pipelines
Min. Space (M)
5
5
1.5
1.0
1.0
1.0-2.0
1.5
1.5