Straight snap-lock pipe

Before you start

• Confirm the branch size, route, fitting sequence, terminal location, and connection details against the approved drawing.
• Inspect every snap-lock edge before assembling the pipe. A flattened, torn, or overbent lock will not stay closed just because it was hit harder.
• Check the pipe for crushed ends, dents, out-of-round sections, and shipping damage before it is lifted.
• Stage the correct pipe, fittings, approved fasteners, sealant, hand tools, hangers, and access equipment before starting the run.

Lay it out

1. Establish the branch centerline and elevation from the approved main connection and terminal location.
2. Lay the pipe sections out in order on the floor so they do not have to be flipped overhead.
3. Plan the longitudinal seam orientation before snapping the pipe together. Keep it straight and accessible for inspection.

Set and support it

1. Install or mark the hanger locations before closing the branch.
2. Use a band or strap that supports the round shape without squeezing the pipe flat.
3. Hold long sections at more than one point so the seam is not twisted during lifting.

Make the connection

1. 1

   Set the longitudinal lock edges together on the floor and start the lock at one end by hand.

2. 2

   Work down the seam a short section at a time until the full lock snaps closed.

3. 3

   Sight down the seam and roll the pipe on the floor. Reopen and correct it if the seam spirals or the pipe rocks.

4. 4

   Crimp the male end evenly only when the receiving connection requires it.

5. 5

   Insert the male end fully to the required depth or bead.

6. 6

   Rotate the seam to the planned position and install approved fasteners evenly around the joint.

7. 7

   Apply the required sealant after the mechanical connection is complete.

8. 8

   Set the pipe into its hanger and verify the support carries the load.