Max Support Distance Requirement

Since the rigidity of plastic pipes is not as good as that of metal pipes such as steel pipes, there are strict requirements for the maximum support spacing in the installation of indoor pipes: if the pipe layout environment may cause the temperature of the pipe to be high, the support spacing of the pipe should be shortened, please refer to the following table:

1. Maximum spacing of UPVC pipe support (mm)

Pipe diameter	1/2 ″	3/4 ″	1 ″	1-1/4 ″	1-1/2 ″	2 ″	2-1/2 ″	3 ″	4 ″	6 ″	8 ″
Horizontal tube	500	550	650	800	950	1100	1200	1350	1550	1800	2400
riser	900	1000	1200	1400	1600	1800	2000	2200	2400	2700	3000

2. Maximum distance between CPVC pipe supports (mm)

Pipe diameter	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
riser	1000	1100	1200	1400	1600	1800	2100	2400	2700	3000	3400

3. Maximum distance between PPR/PPH pipe supports (mm)

a. Maximum spacing of hanger of cold water pipe

Pipe diameter	20	25	32	40	50	63	75	90	110
Horizontal tube	650	800	950	1100	1250	1400	1500	1600	1900
riser	1000	1200	1500	1700	1800	2000	2000	2100	2500

B. Maximum hanger spacing of hot water pipe

Pipe diameter	20	25	32	40	50	63	75	90	110
Horizontal tube	500	600	700	800	900	1000	1100	1200	1500
riser	900	1000	1200	1400	1600	1700	1700	1800	2000

4. Spacing between pipes and structures and other pipes

	Structures				Other pipes
	Railway	Building red line	Street Tree Center	Pole	Cable	Gas pipe	Thermal tube	Sewage pipe
Minimum Spacing (M)	5	5	1.5	1.0	1.0	1.0-2.0	1.5	1.5

The company specializes in the production of corrosion resistant, acid and alkali resistant, high temperature resistant UPVC, CPVC, PPH and PVDF's true union ball valves, foot valves, check valves, butterfly valves, Y sediment strainer, fittings and pipes, and PPR piping system. The products conform to ANSI, JIS, DIN and CNS standard. We has a R&D team with rich technical force and development ability. And design, research and develop, manufacture mold and products by our self independently. The product's specification are various and completed.

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Tel: 86-592-6363176 6363177

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