Question #1: How do I change the spider gasket in my Multiport Valve?
- Stop pump and release all pressure from system.
- Place the selector handle at the “winterize” position ( this lifts the plug off the seat).
- Remove the bolts and nuts holding the cover to the valve body Remove the cover assembly.
- Remove the old gasket from the valve body.
- Make sure that the gasket groove is free of water, grease, oils, debris and parts of the old gasket. Use alcohol to degrease
- NOTICE: Once this step is started, continue through Step 10 without interruption
- Insert the new gasket into the groove with the rounded bead up.
- Press the gasket firmly into all groove areas to seat the new gasket evenly.
- Align the tab on the cover assembly with pin on the valve body, fastening it with the bolts and nuts removed in Step 3. Tighten all bolts evenly.
- Depress the valve handle and rotate it to the closest standard position (FILTER or RINSE), being careful not to rub the plug on the new gasket. Release the handle, allowing the plug to hold the gasket in place while curing. Minimum cure time is 2 hours. Curing for 24 hours is recommended for full strength.
Using Loctite® 401, 403 and 416 apply glue sparingly (a bead about 1/16″ wide) to the bottom only (not the sides) of the spider groove in the valve body. The glue lines must be continuous and intersect at the intersections of the grooves.
Question #2: How do I service the Single Union Ball Valve?
- Depressurize the system.
- Undo the union nut.
- Use the yellow spare pin ( clipped in the red handle) or a small crew driver and push the two yellow pins that hold the valve assembly together out of the valve body – have the valve in open position for that task. The two pins are exposed slightly when you look on the valve body threads. Once the pins are fully extracted, the valve internals can be pulled out easily.
- Pull the valve handle off.
- You can now take the valve internals out of the body and also the valve stem that attaches to the handle – the stem pushes towards the inside of the housing.
- Lubricate the stem 0-rings and the poly seats that seal off against the ball.
That should take about 5 minutes per valve.