DN-7a PE to PE Mains connection

Ensures the tool is within its test date and prepares the tapping tee loading tool for use

Ensures there is sufficient room around the pipe to fit the tool

Cleans the jointing area of the pipe with a clean, damp non-synthetic cloth or paper towelling. Washes <br>off the soapy water with clean water, if used and dries the pipe

Places the top-tee still retained inside its protective bag onto the main and with a felt tip marker pen <br>draws a line around the base area of the fitting ensuring a 25mm border around all sides. Marks the <br>area to be scraped in a cross hatched pattern

Uses an approved SGN pipe exposure tool to score the pipe skin and removes the skin

Opens the plastic bag containing the top-tee to only expose the spigot

With the fitting still in its protective bag, places the fitting against the pipe and with a felt tip <br>marker pen, marks half the length of the fitting plus 25mm and roughly marks a spiral line around <br>the pipe

Scrapes the spigot to beyond 25mm of the line marked on the spigot and ensures the scraped area <br>does not become contaminated

Removes the cap from the fitting and stores carefully and places the fitting into the top loading clamp

Removes the fitting from its protective bag

Removes any protective cover from the base of the fitting taking care not to contaminate the surface <br>containing the electrical fitting

Places the fitting and loading pressure tool centrally over the pipe. Assembles the pressure loading tool <br>onto the pipe. Applies the correct loading pressure on the fitting which is indicated by the indicator on <br>the tool

Connects the terminal leads from the control box onto the fitting using approved SGN connector leads

Enters the correct heating and cooling times for the fitting into the control box

Stands clear from the fitting whilst fusion is in progress. Does not adjust the loading tool during the <br>process

Checks if indicators have risen once the control box indicates that the fusion is complete

Disconnects the fusion leads and allows the fitting the required cooling time before the loading tool is <br>removed

Prepares the SGN approved alignment clamp for use

Ensures there is sufficient clearance around the service pipe to fit the alignment clamp

With the fitting still in its protective bag places the fitting against the pipe and with a felt tip marker pen <br>marks half the length of the fitting plus 25mm and roughly marks a spiral line around the pipe

With the fitting still in its protective bag, places the fitting against the pipe and with a felt tip <br>marker pen, marks half the length of the fitting plus 25mm

What needs to be done to a coupler so as it can be slipped over both ends of the pipe when carrying out a cut-out operation?

Scrapes the whole area outlined using an approved SGN scraper

Removes the fitting from the protective bag and pushes the fitting over the scraped area of the service <br>pipe and spigot, ensuring the service pipe and spigot touches the central register in the coupler. Mark <br>the penetration depth on the side of the pipe at either end of the coupler

Assembles the alignment clamp on to the pipe and checks the penetration

Visually checks the pipe alignment in all planes once the alignment clamp has been fitted. Rotates the <br>fitting to ensure the assembly is not too tight

Connects the terminal leads from the control box onto the fitting using approved SGN connector leads

Enters the correct heating and cooling times for the fitting into the control box

Stands clear from the fitting whilst fusion is in progress. Does not adjust the loading tool during the <br>process

Checks if indicators have risen once the control box indicates that the fusion is complete

Disconnects the fusion leads and allows the fitting the required cooling time before the alignment <br>clamp is removed

Pass/Refer