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such thing as a gate valve seal kit?

87GN

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My washing machine stopped working (a topic for another thread) and of course the gate valves are seized. Is there such a thing as a seal kit to rebuild them? Unfotunetely, they are soldered to the pipes. I went to the big box stores, but have no clue what I need. I'd like replace them with ball valves, but I didn't see any ends that I could use to connect the hoses to. Thnaks.
Mark
 
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The Cobbler

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gate valves are pretty basic construction. they usually have packing or a seal around the shaft that turns to open & close the valve.
try to loosen the nut on the shaft and see if you can get them to turn, then re tighten the nut as you get it to turn. they are designed to be tightens down to stop leaks as they wear . the nut is the adjustment . too tight is no good , too loose is no good .
 

BillK

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Went through this with my main shut off last year. Did exactly what cobbler suggested and got it moving. I had to be careful because I was dealing with main pressure. You can turn the main off and take your valves completely apart. Not much to them.
 

Jackfre

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Yes, it can be done, but it really depends upon the type of wear on the gate, the seal and or the seat. You can play with it, but I think you will be better off just shutting the system down and replacing it with a ball valve.
 

nadogail

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My problem with the gate valves in many houses I have had to work on is that the gate sticks closed and the stem breaks when trying to open the gate.

The best cure I have found is to replace those inexpensive gate valves with a quarter turn ball valve.
 
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87GN

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Thanks for all the replies and suggestions. This is what I'm dealing with. The cold water can bet= turned, the hot can not, yet. That's tomorrow's job. Is there such a fitting that has 1/2npt threads and the other end to accept the water hoses to the washing machine?
 

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87GN

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Thanks skiff. Who da thunk that amazon would have what I was looking for. Now to try my first time soldering copper tubing.
 

Innovate1

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What makes you think those are gate valves? This is a gate valve:
https://www.lowes.com/pd/AMERICAN-VALVE-Lead-Free-Brass-Gate-Valve-NPT/1000330505?
They look like common valves with a rubber washer to me. But you could still loosen the packing nut and see it that helps. Some light taps on the stem will help loosen them up too but don't get crazy with the hammer. You could also try taking out the top of the valve - the big hex toward the handle. That would allow you to spray something on the large thread that is not moving.
 

housewolf

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Those are “boiler drains”. You shouldn’t have a problem repairing them but they look pretty accessible. You’re going to have to turn the water off to work on them anyway. Turn water off, disassemble valve, run around town looking for parts, hope it works/doesn’t drip… I’d just replace them with a good domestic valve.
 
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housewolf

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Thanks for all the replies and suggestions. This is what I'm dealing with. The cold water can bet= turned, the hot can not, yet. That's tomorrow's job. Is there such a fitting that has 1/2npt threads and the other end to accept the water hoses to the washing machine?
You’ll probably have a hard time making that transition with a single fitting. I’ve never seen that fitting but someone probably makes one. I believe those 1/4 turn hose bibs must be of a ball valve type design. That’s what I would use. Nibco make a pretty good valve at a reasonable cost. (I think you’re old valves might be Nibco)

15E8DA39-2110-47C5-BD65-659899B45187.jpeg
 

Innovate1

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Valves need to be cycled occaisionally to keep from getting stuck due to minerals in the water. How often depends on how much stuff is in the local water. I figure once a year here is good. Even with ball valves they will stick over time but not as bad as washer type valves.
 

DGersic

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Thanks for all the replies and suggestions. This is what I'm dealing with. The cold water can bet= turned, the hot can not, yet. That's tomorrow's job. Is there such a fitting that has 1/2npt threads and the other end to accept the water hoses to the washing machine?

Cut where the zip tie is and replace the valve.

I have a combination ball valve, one handle closes both hot and cold. Comes with compression fittings, so you don’t need a torch.
 
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87GN

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CJ7VFR

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Cut where the zip tie is and replace the valve.

I have a combination ball valve, one handle closes both hot and cold. Comes with compression fittings, so you don’t need a torch.
That is what I replaced the hot and cold water valves with when we got our new washing machine, but I soldered mine to two 90 degree drop ears so that could mount the valve to a board. I got mine at Home Depot. I also bought two ball valve "Y" connections so that I could run the water to both the washing machine and our utility sink. You could also get two Sharkbite ball valves for this, and not have to solder anything. Just push them on and your good to go. The Sharkbite valves were about $11.00 each. I posted a picture of my washing machine valve, and a screen grab of the Sharkbite valve from Home Depot. Jim
 

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housewolf

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Yes, that’s exactly what you’d need to screw into a 1/2” threaded ball valve. It wouldn’t be my first choice though. Fewer joints mean less exposure to leaks, even though threaded brass to brass is a very reliable joint it’s neither the easiest, most cost effective, or highest quality way to go. Unless you already have a couple of 1/2 threaded ball valves, then yeah, it’s probably what I’d do.

FWIW; I am a (retired) plumber and I don‘t want to start a ******* match over it but, I’d never advise anyone to use a shark bite fitting permanently indoors.
 

Snapped-off

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I'd just swap out the bonnet assembly if you don't want to install new valves. The body and seat are usually good.
 

CJ7VFR

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...FWIW; I am a (retired) plumber and I don‘t want to start a ******* match over it but, I’d never advise anyone to use a shark bite fitting permanently indoors.
I will agree that using Sharkbite fittings behind walls for water connections is never a good idea. But in exposed areas, such as in a basement, they are easy to install, and they can be quickly monitored for leaks. If installed correctly, they last for a long time. I have seen some that are now closing in on 15 years old that are still holding up. Jim
 

stevied916

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Thanks skiff. Who da thunk that amazon would have what I was looking for. Now to try my first time soldering copper tubing.
If you haven't soldered before, I would solder on a slip x mip or fpt fitting then thread on the valve. You can solder on a slip fitting valve. However, the valve body ***** up a lot of heat and you may damage the seals inside of the valve body getting it hot enough to accept the solder. Sweating on a fitting is much, much easier. Plus if you ever want to replace it again you can just unthread the valve and thread a new one on.
 

Meursault74

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Cut where the zip tie is and replace the valve.

I have a combination ball valve, one handle closes both hot and cold. Comes with compression fittings, so you don’t need a torch.
I used one of these for my washing machines. Replaced a multiturn valve. I could only find this online at the time I was planning the replacement. I can't tell if the OP has the 5/8 OD copper pipe though.

If it is, yeah cut pipe and use these with compression fittings.
 

oldmachinenut

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My problem with the gate valves in many houses I have had to work on is that the gate sticks closed and the stem breaks when trying to open the gate.

The best cure I have found is to replace those inexpensive gate valves with a quarter turn ball valve.
I had this happen on my oil tank shutoff when I replaced my furnace. Of course the tank was
full….good times.
 

nadogail

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Yes, that’s exactly what you’d need to screw into a 1/2” threaded ball valve. It wouldn’t be my first choice though. Fewer joints mean less exposure to leaks, even though threaded brass to brass is a very reliable joint it’s neither the easiest, most cost effective, or highest quality way to go. Unless you already have a couple of 1/2 threaded ball valves, then yeah, it’s probably what I’d do.

FWIW; I am a (retired) plumber and I don‘t want to start a ******* match over it but, I’d never advise anyone to use a shark bite fitting permanently indoors.
I have Shark Bite fittings that have been in place for 20+ years with no problems.
 

housewolf

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I have Shark Bite fittings that have been in place for 20+ years with no problems.
That’s awesome (and I mean it), but you have what, a half dozen? A hundred or two at most? I’ve worked in the plumbing & Mech industry 40+ years and have seen three (unexplained) SB failures. One did over $3MM in damages There’s no way I’d have one inside any property of mine nor would I, in good conscience, tell someone they are “okay”. Maybe you’d have had to have been there 🤷‍♂️

As a bandaid until a suitable repair can be made, sure.

There are too many less expensive and so much better alternatives.
 

nadogail

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That’s awesome (and I mean it), but you have what, a half dozen? A hundred or two at most? I’ve worked in the plumbing & Mech industry 40+ years and have seen three (unexplained) SB failures. One did over $3MM in damages There’s no way I’d have one inside any property of mine nor would I, in good conscience, tell someone they are “okay”. Maybe you’d have had to have been there 🤷‍♂️

As a bandaid until a suitable repair can be made, sure.

There are too many less expensive and so much better alternatives.
I don’t have many Shark Bite fittings; maybe about a dozen, possibly two dozen, mostly on flex lines for Water Heaters or buried underground on supply lines.

I just might consider a Pro Press someday.
 

housewolf

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I don’t have many Shark Bite fittings; maybe about a dozen, possibly two dozen, mostly on flex lines for Water Heaters or buried underground on supply lines.

I just might consider a Pro Press someday.
I’m good with them outdoors UG. I know a lot of utility companies use them. I’d probably be okay in select places indoors where they were bound by the configuration of the piping as to be less likely to blow apart. My point was that a dozen is a relatively small sample. How many “blowouts” are acceptable? One in 10K? One in 100K? None are acceptable in my house, so I wouldn’t think any differently about someone else’s.
 
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