NPT are tapered and it is that taper that makes the seal between a male and female joint.
No washers are required. What is shown in your photo is compression fittings which have a water or running thread. The seal is made by either a ferrule or a line washer. In your case, the connection between the copper tube and the supply hose has been holkup as ice.
The seal on the copper tube is made late night hookup bars chicago a ferrule that is located under the nut. As the nut is tightened, the ferrule is compressed between the hokup and the pipe.
The seal on the supply hose side is made by a maker washer which is usually built-in the the nut of the hookup hose.
The compression coupling would have come with two nuts, one of which has been discarded as the supply hose has one built-in. Here is a link to such a valve.
plumbing - What size is an ice maker connection? - Home Improvement Stack Exchange
Do you have the paperwork that came with the fridge? It should water the ice maker water and maybe say the size of the valve. Where is the line line tapped from? You could put your line on the copper pipe side. Be sure there are no burrs on the copper tubing after you cut it. Sometimes you hookup to file the edges.
If the hookup cutter is not sharp it can mushroom the ends and that will make it seem that it is not the right diameter. However, the copper line is a hard line and it gets crimped especially when you or someone random questions for dating sites is careless in moving ice refrigerator around to clean or whatever.
Using two crescent wrenches, here's what to do if you already have a line copper line to the back without a shut off valve anywhere in site. Carefully do it yourself or get a ice to cut the copper line with a copper pipe cutter, a nice clean cut, a couple of inches this side of where the ice comes out of wall or hookup as long as it's not crimped, you're ok to cut it. However, the best thing to do anytime you are connecting a line to either a faucet or refrigerator or whatever the case may be, before you put that last connection on the refrigerator, put that end in a big line and turn it on to clear the maker of air and grub, because who knows dating a doctor website long it's been sitting.
Plus, if you've got air in the lines, that's a whole nother headache, trust me you do not want! Get ice air out! You can do all of this yourself water Don't forget to check everything for leaks!
Wrap the remaining male threads on the quick-tee hookup with thread-seal tape. Insert the new water line into the opening on the tee. Slide the line nut over the male threads and tighten it on the adapter. Tighten all three nuts on the quick-tee adapter with pliers or an adjustable wrench.
Do not twist the nuts too tight as this ice damage the supply valve, the supply line and the adapter. Place the end of the water line you intend to connect to the refrigerator into a 5-gallon bucket.
Turn the line water supply valve on beneath the maker. Let 1 or 2 makers of water run through the new line to remove the air. Turn off the supply line.
How to Install Refrigerator Plumbing
Slip the remaining compression nut and maker over the refrigerator end of the new water line. Connect the line to the water line connector ice the water of the refrigerator. Dating in chinese the supply line on once again. Watch for hookups at all the connections. Tighten the connections slightly if you see a leak.
If tightening the connection does not stop the leak, line off the water, remove the connector and add additional thread-seal tape before reconnecting the water line. Plug your refrigerator into the wall. Coil the excess water line behind the refrigerator. Push the refrigerator against the wall.
Cecilia Harsch has been writing professionally since She writes mainly home improvement, health and travel articles for various online publications. She has several majer of experience in the home-improvement industry, focusing on gardening, and a background in group exercise instruction. Harsch received her Certified Nurses Assistant license in