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Lead Free Isolation Valve Kit, Includes PRV (TK-IV-01-AB)
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$144.99 each
In Stock
Get 27 Thu, Jul 2
Order by today, receive Thursday
This item replaces: 9007604005, 9007605005, TK-IV-01-AB, TK-IV-01
Free Shipping This item ships free
Easy Returns No restocking fee for 90 days
Product Highlights
–
3/4"
Yes
Description
–
Lead free Isolation valves are used to isolate a unit for service. The Pressure Relief Valve is to help protect the unit and release if the pressure in the tankless water heater or hot water system exceeds 150 psi. (1953 Compliant).
For Takagi Models:
For Takagi Models:
- T-KJr2-IN
- T-KJr2-OS
- T-K4-IN
- T-K4-OS
- T-D2-IN
- T-D2-OS
- T-H2-DV
- T-H2-OS
- T-H3-DV
- T-H3-OS
- T-H3S-DV
- T-H3S-OS
- T-H3J-DV
- T-H3J-OS
Specs
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| Product Type: | Valve |
|---|---|
| Size: | 3/4" |
| Thread Size: | 3/4" |
| Used With: | T-H2-OS T-D2-OS T-K4-OS T-KJr2-OS T-H2-DV T-D2-IN T-K4-IN T-KJr2-IN T-H3-DV T-H3-OS T-H3S-DV T-H3S-OS T-H3J-DV T-H3J-OS |
| Lead Free: | Yes |
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Product Reviews
4.66 out of 50 reviews
92% would recommend this product
5 star
82%
4 star
8%
3 star
6%
2 star
2%
1 star
2%
Customer Images
Most Liked Positive Review
Isolation Valves are a necessity when installing a Tankless
I am in the process of installing 2 tankless water heaters. One is for domestic hot water and one is the heat source for our radiant heat system. They are replacing existing tankless units but I am using new isolation valves. For the price, they are cheap insurance. And since it comes with a pressure release valve, even more savings.
Just make sure that before you buy new ones, that your tankless unit doesn't already come with them. And if it does, it is probably not a bad idea to have a spare set around.
The Takagi set looks well constructed and nicely machined. Great price for a great product.
VS
Most Liked Negative Review
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Factory O-Rings Are Too Thin.
Pros. 1. Feels Like A Quality Product. 2. Large Handles Are Very Nice To Have . There Is A Specific Way of Correctly Tightening Union Connections. Cons. 1. No Matter how Perfect i Lined the Union up before tightening, No matter how perfect i Kept contract with the O-Ring As i Tightened, No matter how Tight i Tightened it, Both hot and cold leaked from the threads. I Had to Apply Teflon Tape and pipe dope to the threads in order to make them not leak. 2. This Valve Is Recommended for Tagaki Tankless heaters. The Orientation Of the PRV If Positioned on the left makes the Drain/Descaling Connection On The Hot Side face the back. Doesn't make sense to me since every tankless brand I've Installed The Hot Outlet Is On The Left. if You choose these, Either search for a Larger O-Ring Or be prepared to do as i Did to the threads so they don't leak.
Showing 1-10 of 50 reviews
Supply House is my Go-To!
Just put in a new tankless water heater & due to its likely longevity, wanted the best for its connections. Delivery was flawless & best of all ON-Time!
GC
TN
3 months ago
Verified Buyer
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Factory O-Rings Are Too Thin.
Pros. 1. Feels Like A Quality Product. 2. Large Handles Are Very Nice To Have . There Is A Specific Way of Correctly Tightening Union Connections. Cons. 1. No Matter how Perfect i Lined the Union up before tightening, No matter how perfect i Kept contract with the O-Ring As i Tightened, No matter how Tight i Tightened it, Both hot and cold leaked from the threads. I Had to Apply Teflon Tape and pipe dope to the threads in order to make them not leak. 2. This Valve Is Recommended for Tagaki Tankless heaters. The Orientation Of the PRV If Positioned on the left makes the Drain/Descaling Connection On The Hot Side face the back. Doesn't make sense to me since every tankless brand I've Installed The Hot Outlet Is On The Left. if You choose these, Either search for a Larger O-Ring Or be prepared to do as i Did to the threads so they don't leak.
Riggs
RI
8 months ago
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Love the handles
These are great for tankless heaters. The bigger handles make shutting off the unit much easier
Steve
Detroit Michigan
1 years ago
Verified Buyer
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doesn't get my vote
mating gasket too small!
ray
c-ville,il
1 years ago
Verified Buyer
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2 Hot water valves that leak
The hot water shut off leaked from the original valve set that I bought. Bought another set for less from another source (because the valves are not sold individually, and my warranty was up before my first descale) and that hot valve also leaked. Had to install additional ball valve to prevent water from the hot pipes coming through the service valve when trying to descale. Go with the more expensive set.
bjoynerpe
Columbia, SC
2 years ago
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I highly recommend this unit it works very well
Easy to install. Quiet operation works very well.
Darrin pit
Chicago
2 years ago
Verified Buyer
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Great product and price
Very nice flushing kit and isolation valves.
Hot N Cold
Bethalto, IL
3 years ago
Verified Buyer
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Good product
Good product
Good service
Jay
Lagrange
3 years ago
Verified Buyer
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I wish I had known about these on my last installation.
Good Quality, a real time saver!
Don
Central NY
3 years ago
Verified Buyer
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Works great!
Perfect for my on demand water heater.
easy install.
Kevin
Wi
3 years ago
Verified Buyer
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Product Q&A
5 Questions5 Questions
Q: are all 3 valves considered 1 when ordering or do you have to order all three?
Asked by TEEDEE 2 years ago
Add your answer
Verified Reply- SupplyHouseHello, thanks for the great question. So, SKU: 100112156 comes with all three valves.
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Q: DO I HAVE TO INSTALL COLD AND HOT LINE? OR JUST FOR COLD LINE?
Asked by JOHN 11 years ago
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- Joe
I believe you have to install both valves so you can isolate the unit for service. Contact Takagi America Customer Support for the definitive answer. They are extremely helpful.
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- Sonoradillo
John, You have a cold line going to the unit and a hot line leaving the unit, going to the house. J. LaRue Thomas
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Q: Hi, what is the thread size on both ends of these valves? Also are both ends male, female, etc.? Thanks.
Asked by Todd 12 years ago
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Verified Reply- SupplyHouse StaffBoth ends of each valve in the set have 3/4" female NPT connections.
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- Sonoradillo
The top fits the pipe from the heater, whatever size that is. Didn't have to do anything special for them to fit. I do believe the top part is female, as I think the pipes to/from the heater are male. I suggest you call Takagi (1-800 # on their website) as ours are still wrapped for winter (20s forecast for tonight) and I can't see them. The heater has not tried to freeze (it has the internal heater) but the pipes to and from, and the isolation valves, most definitely will freeze. Good luck. J. Thomas
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Q: What size and type are the outlets? I'm guessing 3/4" FPT from the image. Is that correct?
Asked by Jon 12 years ago
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Verified Reply- SupplyHouse StaffYes, they are 3/4" FNPT.
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Q: Can these be installed with a piece of pipe between the valve and the water heater? i.e. I want to have these valves about 3 feet below the bottom of the water heater, for ease of access.
Asked by Gary 13 years ago
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Verified Reply- PexSupply StaffYes, you could do that.
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-
It should not matter, mine was installed much closer. Just protect from freezing HAROLD D. HOLLAND
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