What is John Guest tubing made of?
Low Density Polyethylene
The John Guest PE Range of plastic tubing is produced in Linear Low Density Polyethylene. John Guest tubing provides the benefits of a wide range of temperature and pressure suitability, broad chemical compatibility and is made from non contaminating materials.
Can you use JG Speedfit on copper?
Speedfit fittings are suitable for pipes within ±0.1mm of nominal size. They can be used with copper pipe to BS EN 1057 or Speedfit plastic pipe.
Is LLDPE the same as PEX?
PEX stands for cross-linked polyethylene, PVC stands for polyvinyl chloride, and LLDPE stands for linear low-density polyethylene.
Can JG Speedfit be used for central heating?
JG Speedfit is a push-fit system suitable for the plumbing of domestic hot and cold water services and central heating applications, including pressurised and combi systems. Extensive tests have shown that Speedfit products will withstand temperatures and pressures well in excess of normal working conditions.
Can you squeeze off barrier pipe?
Squeeze off procedure for polyethylene water pipes. Only apply squeeze off for a relatively short duration to carry out remedial works. Do not leave the squeeze off unit unattended while in operation. Squeeze off should not be used as a permanent end of line closure instead of a valve or end cap.
Which is better LDPE or LLDPE?
For most applications LLDPE tubing is preferred, as it is stronger than LDPE. LDPE may often be chosen where flexibility is a factor or if a more transparent tube is needed. LDPE performance is greatly improved when it is used as an inner layer with a more flexible polymer as the outer layer.
Which is better LLDPE or HDPE?
While HDPE has greater puncture resistance, LLDPE is more flexible and can be stretched easily over obstructions. With greater flexibility, LLDPE can be prefabricated for field installation, as opposed to HDPE which must be entirely welded on site.
What does MDPE stand for?
medium-density polyethylene
MDPE stands for medium-density polyethylene, and is a robust, heavy duty material. MDPE pipes that are used to connect mains water supplies into homes are typically installed in underground trenches dug in virgin ground.
How long do Speedfit fittings last?
When it comes to product confidence, John Guest has always built its push-fit pipes and fittings to perform for a lifetime. Now, the UK manufacturer is happy to offer double the reassurance, doubling the guarantee on Speedfit plumbing ranges from 25 years to 50 years.
Can speedfit be used on gas?
JG Speedfit is a push-fit system suitable for the plumbing of domestic hot and cold water services and central heating applications, including pressurised and combi systems. Speedfit should be installed to conform with good plumbing practice. Speedfit should not be used for gas, fuel oil or compressed air applications.
