Article Introduction
Mainly connect way of PPR pipes is hot melt. If hot connect was operated in a wrong way, though the pipe is a better one, the quality of pipe may can’t reach the goal. In order to ensure the quality, must use PPR welding machine which equipment with factory products first. PPR welding machine’s temperature and time should be according the standard. PPR pipes’ connect way connect pipes and fittings by once. So when equip the water branch in to the wall, we should consider the requirement of the design and fact of the work place together. If the PPR pipes are buried underground, the connection of the PPR pipes can’t be too much.
Learn more by reading the following articles：
ARTICLE CONTENT
- Precautions before use
- Use the standard settings of the hot melt machine
- Connection process of PPR pipes and fittings
- Conclusion
- About SAM-UK
Precautions before use
Before connecting, clean the PPR pipes and fittings, like oil and other things. Furthermore, the PPR pipes in fittings can’t be long, the connect place of the PPR pipes should be average, otherwise it have space so that can’t be connect well. In the future, the connection of the PPR pipes may leak, it should be reconnected at once.
Heat two parts until the suite temperature, cooling enough, then use. The temperature of PPR pipes is 20℃ lower than PPB, so it is better to connect in a low temperature place.
Use the standard settings of the hot melt machine
Hot melt standard time：
All of the important technical is electric melt by the PPR welding machine, now detailed introduce notice of electric melt below：
Electric melt: First, set electric melt fitting on PPR pipes, then use professional PPR welding machine according the set parameter（time, voltage）to give electric melt fitting electricity, make the inside of electric melt fitting and the outside of pipe insert end melt. Cooling the fitting and the pipe, then melt together. The feature of this kind of the PPR welding machine is speed, convenient, good quality, and small external influence. But the price is several times expensive even more (smaller of diameter, more expensive of it). In general, it is suitable with big diameter pipe connect.
Connection process of PPR pipes and fittings
1. Connection process: check → cut → clean connect end → insert → check → electric welding → cooling.
(1) Check：Before connecting, clean the dust and foreign matter on the PPR pipes and fittings, check the appearance quality of the pipes and fittings, and remove the broken ones, and remove the surface oil and burrs.
(2) Cut: The connect end should be perpendicular cut to ensure enough melt area. Usually cut tool is rotary cutter, saw bow, plastic pipe scissors etc. Do not allow high temperature to avoid the deformation of pipe end.
(3) Clean the connect end and insert deep line: Use fine sandpaper, scraper scraping the surface of the pipe oxide layer. Use clean cotton clean the connect side of pipe and fitting. Sign the insert deep line.
(4) Electric welding by the PPR welding machine: Heat time with electric and voltage should meet the factory regulation of the electric melt welding machine and electric melt fitting, in order to connect in a best supply voltage and best heat time situation.
(5) Insert: Insert the electric fitting into pipe until the required deep, connect together with welding machine.
(6) Check: Adjust pipe’s or fitting’s position on a line to avoid not firmly due to miss connect or not sealed.
(7) Cooling: Due to PPR pipe can reach max patience strength only after cooling to room temperature. During cooling, external force will make fitting and pipe in two lines and effect welding quality. So, cannot move connection or produce external force during cooling.
2. Electric melt saddle connection: This way of using PPR welding machine only can be used on connect branch with body or water leak caused by small area pipe burst.
Conclusion
At present, there are two methods for PPR pipe connection: hot melt connection and electrofusion connection. The most commonly used method is the hot-melt connection method. This method is the most convenient and reliable. It can connect the pipe and the pipe at one time. The connection is firm and tight, and leakage is prevented. SAM-UK reminds everyone that considering the product performance and process differences of each manufacturer, the selection of pipes and accessories requires the same brand, and the hot melt connection must be carried out in strict accordance with the manufacturer’s operating specifications.
About SAM-UK
SAM-UK are a professional 18+ years manufacturer in producing vinyl building profile products and PVC,CPVC, PPH,PPR,PP pipes and pipe fittings, valves, taps and so on. We own the certificates of SGS\SONCAP\ISO9001\CE\NSF，support color /size customization. Welcome to consult for Catalog and Product. you can contact us at email sales@sam-uk.com
