Drain and Sewer Piping Systems – Installation and Air Testing | Polypipe Civils

[Music] this video will demonstrate how to install and our tests are integrally socketed rigid drain regi sewer and ridgy storm XL piping systems using ring seal joints step 1 trench and base preparation firstly you will need to prepare the trench for pipe installation mark the ground in order for the digger to excavate the trench excavate the trench to the correct width and depth according to the engineer's drawings remembering to allow for side compaction and bedding once the trench excavation has been completed set up a laser pointing upstream inside the first manhole or location pipe connection this will determine the gradient line and level required use a plumb line to help set up and center the laser next level out the trench and drop in the subgrade keeping the laser level in mind according to the engineering instructions mark a line on an object such as a stayed and measure the laser level against it to ensure a level base step 2 jointing preparation now you can prepare to join the pipes clean the external pipe surface of the spigot end and rubber seal to remove any dirt [Music] measure the internal depth of the receiving socket and mark this depth on to the spigot end of the joining pipe this will act as a guide when joining so you know when the pipe is home ensure you're using the correct EPDM or nitrile seal for the pipe diameter then place the seal correctly into the first reset of the spigot end of the pipe ridgy storm XL requires two seals replaced within the pre Mills groove if it is needed clean the pipe end again to remove any then apply a liberal amount of polypipe lubricant all around the spigot end and the seal [Music] step 3 pipe jointing to join first clean the internal socket of the receiving pipe or chamber to remove any dirt dust or debris then apply a liberal amount of poly pipe lubricant to the internal surface depending on size a pipe can either be lowered into the trench by hand or can be moved with the use of lifting equipment it's possible to install smaller pipe diameters up to 300 millimetres by hand but anything greater than 300 millimeters will require mechanical assistance we recommend you double sling the pipe to lift safely once in the trench carefully align the spigot of the pipe into the receiving socket it's being joined to now you can prepare it to join the pipe on larger diameters we recommend the use of an installation stub which can be inserted into the socket of the pipe these are available prefabricated and not only help with the installation by protecting the socket but also help to prevent debris entering open ends during jointing please contact us for more information on our installation studs available from 375 to 600 millimetres and options for assisting jointing of larger sizes place a wooden board at least 18 millimeters thick against the installation to help spread the load and prevent damage to the end of the pipe using a bigger bucket slowly push the pipe into the receiving socket until it is fully inserted up to the pre marked line for smaller diameters a pry bar can be used by hand instead of a digger bucket during connection inspect the joint to ensure that alignment is correct check that there is no foreign material or dirt infiltrating the joint and check that the seal has stayed in place step for air testing once the join is made you will then need to complete a successful air test of the joint for leaks before back sewing to do this firstly check the line and level using a laser sight guide before testing ensure the socket is clean and free from dirt when it comes to air testing you will need to ensure the following one check that the bungs are in good condition too if you're using inflatable bums check that they are not cracks and that they are free from dirt 3 also check that the inflation ports are in good condition and that they don't leak when the bung is inflated 4 if you're using steel bonds check that they are free from damage ensure that the rubber is in good condition is not cracked and it's free from dirt check that the center cap is on the center port and is tight and seals use PTFE tape if necessary after all the checks have been done insert the bung into each end of the pipe line leaving a 25 millimeter gap from the bung to the end of the pipe if testing Junction's the bungs must be placed inside stubs of pipe and not on the blue inner wall of the junction testing on the inner wall of a junction may cause a drop in air pressure it is also good practice to check that the manometer is in good condition before you use it then fill up with water to the zero point next add air into the outside of the bunk to secure a tight fit connect the manometer to the inner bond connection port and increase the pressure until it reads 100 millimeters water gage or 0.01 bar allow the air pressure to stabilize for a few moments and increase the pressure to 100 millimeters order gage if required hold the air test for five minutes and record the reading this should not fall below seventy five millimeters water gauge or 25% over the five-minute period once the air test is complete check that the pipe is still fully inserted stake a wooden board in place before you begin back filling this will hold the pipe in position and prevent any of the backfill entering the pipe then backfill around the pipe in accordance with the engineering specifications once the backfill and compaction is complete repeat the air test on the pipe line to ensure joint integrity you have now successfully jointed and air tested your poly pipe drainage or sewer piping system if you would like any more information please contact us and we'll be happy to help [Music]

Channel: Polypipe Channel

Views: 255,101

Keywords: Polypipe Civils, Ridgidrain, Polysewer, Ridgisewer, Ridgistorm-XL, Pipes, Sewer Systems, Polypipe

Id: _U0aDEYAzt8

Length: 7min 6sec (426 seconds)

Published: Wed Feb 15 2017