How do I remove a compression fit valve?

Asked By: Yony Sammeta | Last Updated: 29th January, 2020
Category: hobbies and interests woodworking
5/5 (40 Views . 45 Votes)
To remove a compression-style valve, hold the valve body with an adjustable or open-end wrench, or a slip-joint pliers. Grab the compression nut with another wrench and turn it clockwise to loosen it. Then pull the valve off the copper tubing. Next, remove the old compression sleeve and nut.

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Likewise, people ask, how do you release a compression fitting?

Use two crescent wrenches to release the compression fitting.

  1. Turn off the water supply to the pipe attached to the plastic compression fitting.
  2. Place the compression nut in the jaws of a second crescent wrench, tightening the wrench to the nut.
  3. Remove both wrenches.

Also Know, should you use Teflon tape on compression fittings? The bolts have to be tightened evenly. Thread sealants such as joint compound (pipe dope or thread seal tape such as PTFE tape) are unnecessary on compression fitting threads, as it is not the thread that seals the joint but rather the compression of the ferrule between the nut and pipe.

Correspondingly, can you reuse a compression fitting?

Reusable Compression Fittings: They are safe to be reused and apply to half the movement of the pipe outward from the fitting. In hydraulic process, compression fittings basically assure some secure fit in pipe connections. Leaks are only possible if they are not properly installed to each end of the fluid line .

Can push fit fittings be reused?

The push-fit connections you describe are just that – they seal themselves under water pressure by means of a rubber O-ring and toothed metal grab-ring. Some brands, such as Speedfit, can be removed by hand and reused; others can be removed using a special tool; some others cannot be removed or reused.

31 Related Question Answers Found

What happens if you over tighten a compression fitting?

Tape seals a leak in threads, but a compression fitting is sealed at the ferrule, not at the threads. Leaks are frequently caused by over tightening, so this is certainly a possibility in your situation. You can always tighten it more if you under tightened it, but once you over tighten, you have to get a new ferrule.

How reliable are compression fittings?

Although compression fittings are generally considered more reliable than threaded fittings, there are some potential problems. In general, compression fittings are not as resistant to vibration as soldered or welded fittings. Repeated bending may cause the ferrule to lose its grip on the tube.

How do you remove a compression ring from PEX?

Careful not to cut into the brass barb fitting.
  1. Cut the ring perpendicular to the pipe.
  2. Use a flat head screwdriver and place it between the cut and twist to open the crimp ring.
  3. Using pliers bend to remove the crimp ring, or you can slide it off the pipe if the pipe end is not connected to anything.

How do you loosen a stuck brass fitting?

Brass fittings, primary used on hot or cold water lines to connect one piece of pipe to another, become stuck due to corrosion or over-tightening. Sometimes loosening a stuck brass fitting is as easy as turning the locknut counterclockwise to tighten it further and then turning clockwise to loosen.

What is the function of ferrule?


A ferrule (from Latin viriola, meaning little bracelet) is a ring or cap attached to an object to protect against damage, splitting, or wear. In fiber optic, a ferrule is a component (usually a rigid tube) used to align and protect the stripped end of a fiber.

How do you remove an angle stop valve?

remove the angle stop
Disconnect the water line where it connects to the valve using a crescent wrench. Next, remove the angle stop -- use two wrenches, one to hold the compression nut and one to hold the angle stop. To loosen, remember to turn the compression nut, not the angle stop.

Why do my compression fittings leak?

Tighten compression fittings firmly with two wrenches to crimp the ferrule onto the pipe (Photo 3). Also make sure the pipe or tube goes straight into the fitting. Misalignment will cause a leak. If the fitting leaks after you turn on the water, try tightening the nut an additional one-quarter turn.

How tight should you do up a compression fitting?

Hold the compression fitting body tightly with a pair of grips and tighten the nut with a spanner. Its often said in the trade to not over tighten a compression fitting, leaving you more thread in the case of a leak and not distorting the olive or fitting. Generally a nut will need one whole turn after hand tightening.

How do you stop a compression fitting from leaking?

Place a little pipe thread compound around the compression ring, also known as a ferrule, and tighten the nut clockwise a little past the original position. Turn water back on and check for leaks. If the fitting continues to leak, replace the ferrule.

Should I use PTFE tape on radiator valves?


If you are installing a new central heating component (like a radiator or a radiator valve) then it's advisable to use PTFE tape AND some silicone-based jointing compound, to make the joint completely watertight. Most plumbers will recommend using the PTFE tape and jointing compound on any new heating installation.

Can you reuse compression olives?

Copper and brass olives both work fine. Olives can't be removed from a pipe and reused. Even hand tightening a fitting with an olive inside before the pipe is inserted, is enough to make the olive unusable. You can usually dismantle and remake a sound compression joints without ill effect.

How does a PVC compression fitting work?

Compression Couplings Make it Easy to Repair Sprinkler Pipe
In this circumstance, a good option is using a PVC compression fitting. This fitting seals by squeezing washers tightly against the pipes, and it requires no measuring or gluing to use.

How much pressure can a ball valve handle?

working pressure for the high pressure ball valves is 7500 psi, and depends on the structure, sizes and sealing materials, the max. working pressure of high pressure ball valves can be up to 15000 psi.