PP Corrugated Pipe Mnufacturer

Double-wall PP corrugated pipe is a type of plastic pipe with an inner and outer double-layer structure, made primarily of polypropylene through extrusion molding. This type of corrugated pipe is based on the original polypropylene corrugated pipe, but incorporates glass fibers and nanowhiskers, improving and optimizing the product formula, resulting in higher ring stiffness and better ring flexibility.

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Product Features Application Areas Specification & Dimension Performance Indicators

Product Features

1. PP corrugated pipe has good impact resistance,high ring stiffness and low creep rate;
2. Long service life: GFPP corrugated pipe more than 50 years in case of buried use;
3. Good mechanical properties: PP corrugated pipe is added ultra-fine glass fiber, high tensile strength, low thermal conductivity,smooth surface, good thermal insulation performance;
4. PP corrugated pipe has good flame retardant properties, acid and alkali resistance, excellent insulation, good heat resistance;
5. PP corrugated pipes are smooth inner wall, large circulation, no scaling;
6. Corrugated pp pipe is hollow rib structure, light weight, easy transportation and construction,low construction costs.

Application Areas

1. Unpressurized underground buried industrial sewage pipe;

2. Municipal drainage sewage pipes;

3. External drainage of buildings;

4. Rainwater collection and Domestic sewage discharge.

Specification & Dimension

DN/ID	Min. Average Inner Diameter	Min. Laminated Wall Thickness	Min. Inner Wall Thickness	Min. Connection Length
100	95	1	1	32
125	120	1.2	1	38
150	145	1.3	1	43
200	195	1.5	1.1	54
225	220	1.7	1.2	55
250	245	1.8	1.4	59
300	294	2	1.4	64
400	392	2.5	2	74
500	490	3	2.2	85
600	588	3.5	2.5	96
800	785	4.5	3	118
1000	985	5	4	140
1200	1185	5	4	162

Performance Indicators

Test Item		Indicator	Test Method
Ring Stiffness (KN/m2)	SN4	≥4	GB/T9647-2015
	SN6.3a	≥6.3
	SN8	≥8
	SN10a	≥10
	SN12.5	≥12.5
	SN16	≥16
Impact Resistance（TIR）/%		≤10	GB/T 14152-2001
Ring Flexibility		No crack, no disconnection of the two walls, no reverse bending of the inner wall	ISO 13968:2008
Oven Test		No delamination, no cracking	GB/T 19472.1-2019
Density（kg/m3）		895-920	GB/T 1033.1-2008
Oxidation Induction Time （200℃）/min		≥20	GB/T 19466.6-2009
Ash Content		≤3	GB/T 9345.1-2008
Creep Ratio		≤4	GB/T 18042-2000

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