Irrigation Pipes

HDPE Pipes

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Grekkon Limited supplies the best gauges of UV-treated agricultural HDPE pipes for sale in Kenya, and HDPE fittings for irrigation in East Africa. Our HDPE pipe prices in Kenya are according to the the following specifications

HDPE pipes lof various sizes oaded onto a truck outside Grekkon Limited’s ware house in Athi river, Kenya after manufacturing for delivery to a client

  1. The pipe diameter. The wider it is, the more expensive the pipe
  2. Pressure nominal, abbreviated as PN indicates the amount of pressure that particular pipe will withstand. The higher the pressure that pipe will withstand, the higher the PN rating and the more expensive the pipe is. For intance, a PN6 pipe will withstand up to 6bars / 60M head of pressure. A PN 16 pipe will withstand 16bars / 160M of pressure

We have both the blue line and black HDPE pipes. Both are functionally the same. The blue lateral stripe along the length of the pipe is an external code as to what type of medium it conveys; water. This is important when the blue stripes are laid in a common trench, with other striped pipes for example an electric, or gas main pipe

 

Blue lines on a 40mm PN12.5 HDPE pipe by Grekkon Limited

HDPE Pipes Prices in Kenya (per meter)

Pipe Diameter Size in mm
 Price in KES
16 KES 16
20 KES 30
25 KES 40
32 KES 50
40 KES 65
        50                 
KES 95
63 KES 150
75 KES 210
90 KES 330
110 KES 470
125 KES 628

The prices shown are for PN6 pipes. For PN8, PN10, PN12.5, PN16, PN20 and PN25 prices, reach out to any of our nearest branch

HDPE Pipe Sizes

The length of the pipe has no bearing on the pipe price. These agricultural pipes have a standard length of 100m upto 90mm,  after which the length  differs according to the pipe diameter. The wider the diameter grows, the shorter the pipe is.

Our available pipe diameter sizes are;

  • 16mm
  • 20mm or 1/2”
  • 25mm or 3/4″
  • 32mm or 1′
  • 40mm or 1-1/4”
  • 50mm or 1-1/2”
  • 63mm or 2”
  • 75mm or 2-1/2”
  • 90mm or 3”
  • 110mm or 4”

 

 

16mm HDPE pipe rolls of 100M length

 

 

Other larger sizes are sourced from our pipes manufacturers in Kenya. In irrigation systems, the larger pipes are mains, the smaller ones are sub-mains in drip irrigation systems, sprinkler irrigation systems and rain hose kits. The 16mm pipes are used to supply water directly to the crop through button drippers or micro-jet sprinklers. The 16mm HDPE is the smallest diameter available

We supply all HDPE fittings which are; tees, reducing tees, threaded tees, equal elbows, male and female elbows, connectors, reducing connectors, male and female adaptors, and end caps. They range in size from 20mm to 110mm, and come in rolls

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The pipe size is determined by the amount of water required per area. Large farms will use large pipes, while small crop units will use small pipes.

Types of HDPE Pipes

There are 2 types of HDPE pipes;

  • HDPE 80 which transport raw gas materials
  • HDPE 100 which transport water and other liquids

HDPE Pipes & HDPE Fittings FAQs

1. How do I connect to HDPE?

Various HDPE fittings connect HDPE pipes to PVC, PPR, and HDPE pipes. These are; couplings, reducing couplings, adaptors, elbows, and tees.

2. What is HDPE pipe specifications?

HDPE pipe specifications are given as; pipe internal diameter, thickness, and length. At Grekkon Limited, our pipe diameter is given in mm, thickness as PN, and length in meters.

3. What is the difference between PE and HDPE?

None. PE is short for HDPE

4. What determines the HDPE pipe thickness choice?

Water pressure. The pressure at which water will flow within. For instance, a farmer whose water flow is gravitational will use the lowest gauge, which is PN6. Another grower using a water pump will use a thicker pipe that withstands the pump pressure. The greater the pressure from the water pump, the thicker the pipe is.
External exposure. Some growers opt to lay pipes on the surface, while others will prefer them buried underneath the surface. The former will use thicker pipes that withstand the risk of mechanical damage, and prolonged exposure to UV radiation. The latter will use those of lower thickness because the pipes have very low exposure to mechanical damage. It is also not exposed to the sun’s degrading UV radiation

 

HDPE elbow fittings

5. What is HDPE pipe fittings?

These are plastic accessories used to join the pipes to each other, to another pipe type, and to seal the pipe’s end. These HDPE fittings are;

  • Male and female adaptors. They connect the pipe to accessories such as ball valves, tank connectors, filters, venturi fertigation systems etc.
  • 45 and 90 degree elbows. They alter the direction of the pipe
  • Reducing elbows. They alter the direction of the pipe by connecting it to a smaller diameter pipe
  • Tees. They connect the HDPE pipe to a another one running in the opposite direction
  • Reducing tee. They connect the HDPE pipe to a another one with a smaller diameter running in the opposite direction
  • Connectors. They connect the HDPE pipe to a another one running in the same direction
  • Reducing connectors. They connect the HDPE pipe to a another one with a smaller diameter running in the same direction
  • End caps. They lock the pipe at the end to prevent further water flow

 

A drip irrigation system with HDPE pipes & fittings installed by Grekkon Limited

6. How do you join HDPE pipes?

6.1. By using connectors or couplings for smaller diameters

6.2. Butt fusion for larger diameters. Butt fusion is a thermofusion process that involves the simultaneous heating of the ends of two pipes which are to be joined. This is to achieve a molten state on each contact surface. The two ends are then brought together under controlled pressure for a specific cooling period and a homogeneous fusion joint is formed

7. What is HDPE pipe used for?

They are used in irrigation, electric cabling works, and as gas pipelines

8. Is HDPE price cheaper than PVC?

HDPE pipes are cheaper 

9. How long is HDPE pipe?

100M up to 90mm, after which the pipe length is a factor of the diameter. The wider it is, the shorter the pipe for logistical purposes

16mm HDPE pipe

10. Is PVC stronger than HDPE?

No it is not for the same PN rating

11. How do you connect PVC pipe to HDPE pipe?

Attach a valve socket to the HDPE pipe which will connect to the female adaptor on the HDPE pipe

12. Which is better HDPE or PVC?

HDPE has better long-term durability, and chemical resitance properties overall

13. Is HDPE waterproof?

Yes it is

14. Can HDPE be used for domestic sell?

Yes

15. How do you fix a leaking HDPE pipe?

  • cut off the cracked or perforated area
  • add a similarly sized connector
  • test to ensure that there is no leakage
  • return the pipe to its former position
  • bury it if it had been excavated

16. Does HDPE fade in sunlight?

Yes over a long time

 

 

Summary

HDPE pipes have a long usable lifespan that extends to decades. Thicker pipes and buried pipes will last longer. We supply fittings designed for use with HDPE pipes to join them together, and with other accessories and material. Every fitting is of the same diameter size as the pipe, but always thicker.

Reach us in any of our branches for your HDPE pipes and fittings

Admin

Established in 2017, Grekkon Limited is a Kenyan agribusiness company. It specialises in the provision of; - Irrigation systems - Greenhouse construction - Dam liners installation - Water pumps - Solar dryers construction - Agriculture nets - Borehole drilling The company has operations offices in Nairobi, Mombasa, Kisumu, Eldoret, Nyeri, Meru, and Nyahururu

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