Product Description

HDPE Krah Pipe

Krah pipe is a kind of special-shaped pipe with smooth inner wall and spiral strengthening outer wall. Spigot and socket Krah pipe normally divided into B type and C type, which are green and flexible, use high density polyethylene as raw material, produced by filament winding process in the states of hot-melt, gradually cooled by means of rolling air cooling and spraying in thermal state and before demolding. It is available for a wide range of diameters from 300 mm to 3000 mm, can be connected by socket-joint.Krah pipe has all the features: high strength, light weight, corrosion resistance, no leakage, good sealing and easy construction etc., be widely used in drainage projects.

Nominal OD Min. mean diameter The wall thickness of the min. layer pressure Min. inner wall thickness
(dn)
mm mm mm mm
200 196 1.5 1.7
300 294 1.7 2
400 392 2.3 2.5
500 490 3 3
600 588 3.5 3.5
700 673 4.1 4
800 785 4.5 4.5
900 885 5 5
1000 985 5 5
1100 1085 5 5
1200 1185 5 5
1300 1285 6 5
1400 1385 6 5
1500 1485 6 5
1600 1585 6 5
1700 1685 6 5
1800 1785 6 5
1900 1885 6 5
2000 1985 6 6
2100 2085 6 6
2200 2185 7 7
2300 2285 8 8
2400 2385 9 9
2500 2485 10 10
2600 2585 10 10
2700 2685 12 12
2800 2785 12 12
2900 2885 14 14
3000 2985 14 14

 

Item Product Parameter
Ring stiffness (KN/m 2 ) SN4 ≥ 4, SN8 ≥ 8, SN16 ≥ 16
Impact performance TRL ≤ 10%
Ring flexibility No delamination, no cracking, no buckling deformation, no dents, no bulges
Creep rate ≤4
Tensile strength of Seams The Minimum endurable tensile force (KN)
DN/ID ≤ 300 ≥ 380
400 ≤ DN/ID ≤ 500 ≥ 510
600 ≤ DN/ID ≤ 700 ≥ 760
DN/ID ≥ 800 ≥ 1020
Oven test No delamination, no cracking on the seams
Installation Instructions

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FAQ:

Q1. Are you trading company or manufacturer?
A: We are professional manufacturer and welcome to your visit at any time.
Q2. How long is your delivery time?
A: Generally it takes 5-10 days if the goods are in stock, which depends on your quantity and can be negotiable.
Q3: Do you provide samples?
A: Yes, of course, samples is available for small quantity we can supply for free.
Q4: What is your terms of payment? A: L/C, Western Union, T/T 30% in advanced, balance before shipment.
Q5: For pipe fittings, what do you do mainly?
A: For fittings, coupling(socket), elbow,tee,reducer,union, valve,cap,some electrofusion fittings and compression fittings.
Q6: Can i have my own logo on the product?
A: Yes, sure, you just send us your drawing, we’ll make logo for you, and before production we will confirm with you in advance.
Q7: Can i request to change the method of package and transportation?
A: Yes, the packing and trasportation can be as per your requirements.

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