Hdpe End Cup
HDPE end cap is a compression fitting which is used to lock the end of HDPE pipe. The fitting comes in different sizes depending on the size of the pipe and the pressure. The use of the HDPE end cap is therefore critical in any Hdpe pipe installation.
Compression end cap has a pressure nominal (PN) of 16 to pressure nominal of 25. The pressure nominal (PN) is the working pressures of the materials and it also identifies the strength of the material. The larger the pressure nominal number, the stronger the material.
Currently, most Hdpe compression end caps are made of plastics (polymers). This type of material reduces the effects of corrosion. Corrosion may compromise the water quality which is an essential factor in irrigation. Compression end caps are mostly determined by their nominal diameter (inside diameter).
Nominal sizes may range from 20 millimeters to 91 millimeters as the commonly used plastic Hdpe compression adapters in small to medium irrigation fields.
Unlike female adapters and male adapters, Hdpe compression end cap have neither external nor internal threads on their necks this makes them compatible with either HDPE or PPR pipes.
Compression end caps have caps, O rings, clinching rings, blocking bush and the body to make them compatible with the irrigation pipes.
Function of the Hdpe compression end cap
The main function of the plastic Hdpe compression end cap is to close the ends of Hdpe pipes so that no foreign objects can find their way into the piping system whenever it is operating or not.
The compression end cap is characterized by toughness, ductility and they provide a sound
joint able to withstand pipeline expansion and contraction and other stresses.
The plastic compression end cap are usually accompanied with the threads, O rings, grippers to give it strength for it to be compatible with other irrigation components.
In conclusion, the best way to select the best plastic end cap is first to know your water driving force. This force also is known as pressure may be either a water pump or natural gravity depending on the general slope of the land.
The water driving force will ensure that the right compression end caps’s PN is selected and incorporated with other equipment that is used for irrigation hence delivering high efficiency.
The table below shows the parts, material and the color of the Hdpe compression end cap.
|A||Cap||High quality polypropylene||Blue/green/black|
|B||Clinching Ring||Acetyl resin||White|
|C||Blocking Bush||High quality polypropylene||Black|
|D||“O” Ring Gasket||rubber||Black|
|E||Body||High quality polypropylene|