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$86.64 each
In Stock
Get 2 Tue, Jul 7
Order by today, receive Tuesday
MANUALS (2)
This item replaces: 0269503
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Product Highlights
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Stainless Steel
180°F Max Temp
1/2"
MNPT Connection
Yes
Description
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Series 150A Water Hammer Arrestors are used in residential applications to control water pressure shock and prevent water hammer conditions. It consists of a pre-charged air chamber that is rechargeable, an air-tight sealing cap, standard tire valve connection for easy charging, stainless steel top, sealed-in diaphragm, lower stainless steel chamber, and brass hex adapter for easy installation. It can be installed in new or existing plumbing systems in any angle.
Specifications:
Specifications:
- Model 150A is a 1/2" fitting. (adapter only)
- Maximum Working Pressure: 150psi (10.3 bar)
- Maximum Shock Pressure: 200psi (13.8 bar)
- Maximum Velocity: 10 F.P.S.
Specs
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| Body Type: | Tank |
|---|---|
| Material: | Stainless Steel |
| Application: | Plumbing |
| Max Temp (F): | 180°F |
| Max Shock Pressure: | 200 PSIG |
| Size: | 1/2" |
| Connection Type: | MNPT |
| Connection Method: | Threaded |
| Lead Free: | Yes |
| Max Velocity: | 10 F.P.S. |
| Max. Working Pressure: | 150 psi |
Contact
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Product Reviews
4.83 out of 83 reviews
97% would recommend this product
5 star
90%
4 star
7%
3 star
0%
2 star
0%
1 star
2%
Customer Images
Most Liked Positive Review
Great solution to water hammer caused by washing machines.
I originally installed a couple of the cheaper 'tube and piston' type arrestors. While they worked, after a couple years the pipes were banging again. Apparently the air trapped in the tube eventually gets forced past the piston, rendering them useless. These Watts arrestors are a much better design, and more of a 'pro' solution. They also offer some adjustment if your water pressure is higher or lower than normal. Yes, they're more expensive but isn't it worth it not to have to move the washing machine again?
The only issue I encountered was that my particular washer has the water connections recessed onto the back panel. This meant that the 0121229 fittings weren't quite long enough for the arrestor bodies to clear the back of the washer. So, I made a quick trip to the local hardware store for a couple close nipples and unions. I added these between the connector and the body of the fitting. This gave enough extra length, and it was good to go.
VS
Most Liked Negative Review
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Very fast shipping but product did not work for me
I bought this product for an irrigation system that was having water hammer every time it turned on/off. I installed it on the main line with a tee. The water hammer did not go away at all. I ended up making my own water hammer arrestor by putting a piece of 12" pipe with a cap on it in the tee on the main line and then throttled the flow.
Showing 1-10 of 83 reviews
I would buy this product again
Well made lead free
Sam
New York
2 months ago
Verified Buyer
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Water Hammering Gone
Tried many different configurations to eliminate the water hammering from LG Clothes Washer. Found this solution after many searches. The reviews for this product were mixed. Knowing some other info from a new water heater I charged the units to 30 pounds. So far no hammering. Looked for a new washer but read LG still uses the hard close valves causing hammering.
Ray Sea
Michigan
1 years ago
Verified Buyer
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They work.
Diaphragm water hammers are the only reliable way to arrest hydraulic shock.
The piston type for me would fail after a short time. Wanted a small version of the watts item I purchased for the refrigerator water line but couldn't find one. Don't know if it exists.
Macgyver
East Tennessee
2 years ago
Verified Buyer
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So far so good
It works better than the smaller water hammer arrester for the washing machine. Hopefully it lasts longer.
Tony
Brooklyn ny
2 years ago
Verified Buyer
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Works great, stopped our irrigation water hammer
Been looking for a good water hammer eliminator, found this and after reading the reviews decided to give it a try. It's a bit more costly than those smaller metal tube types but we didn't have much success with those in a different application. Bought this and installed it and the water hammer is virtually eliminated (the water hammer was pretty loud inside the house previously, when the sprinkler stopped you could hear multiple bang-bang-bang sounds). I didn't need to adjust the air pressure but was glad that this had that option if needed. Now all we hear is a single quiet "thump" when it shuts off, no banging at all, and the thump is barely audible. Time will tell regarding durability but it seems solidly made.
AlexK
Santa Clara, CA
3 years ago
Verified Buyer
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Installed in 2016, 8 years later still working great.
I installed these on my washing machine and kitchen sink (dishwasher) hot and cold lines (4 total) in 2016. My incoming water is 90 PSI. I got tired of replacing the simple tube-style hammer arrestors that would fail in a few months. These units when properly charged and sized are perfect for most people.
Tips:
Make sure you pressurize the unit to match your incoming water pressure. If they are under pressure they simply will not work.
Try lowering your incoming water pressure closer to ~60 PSI in combination with this to get a better result.
Next time you put a hot water heater in, install an expansion tank.
The fellow with the irrigation system is not using a properly sized unit. You can't expect a little arrestor like this that is designed for 1/2 lines to absorb the energy on a +3/4" line flowing 10-20 GPM.
JP
Oakland, NJ
3 years ago
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I would buy it again
Used for a back up sump pump to eliminate water hammer.
Speedo
Denvilkle, N.J.
3 years ago
Verified Buyer
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Watts review
Installed first Watts arrestor and even taking the PSI up to 5 lbs under house pressure did not work as still hot water hammer.
Supply House sent replacement within 2 days and installed and appears this one is working so far. I did return the defective one to the Sippy House.
Bill
Bucks county Pa
3 years ago
Verified Buyer
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Air Charge Pressure is Key
As other users have noted, the volume of air contained in the arrestor is small and the act of merely coupling or decoupling a pump or pressure gauge will result in a significant loss of charge pressure. A more reliable way to get the arrestor to work optimally for your application is to overcharge the arrestor say to 80 psi (max working pressure per specifications is 150 psi), start your LG washing machine (or similar device) and SLOWLY release air from the arrestor until the water hammer dissipates. The metal caps on the arrestors have an elastomeric gasket inside, recommend that the cap be installed tight in case the schrader valve has a minor leak. I found it necessary to recharge the arrestors only once in the past few years.
User
Higganum, Connecticut
3 years ago
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I would purchase this product again.
Solved my water hammer problem after installing a new washing machine. Installed on hot and cold supply lines. No more banging.
David
Fairport NY
3 years ago
Verified Buyer
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Product Q&A
5 Questions5 Questions
Q: What is the diameter of the body of the arrestor? Please and Thank You. Crosby
Asked by Crosby 8 years ago
Add your answer
Verified Reply- SupplyHouse Staff3-13/32" at it widest point
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Q: Can this be installed any where in the system or does it need to be at the highest point of the system?
Asked by RSP 10 years ago
Add your answer
Verified Reply- SupplyHouse StaffWater hammer arrestors should be installed as close as possible to the source of shock.
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Q: How do you recharge this? Just got a new dishwasher and now we've got water hammer. We've had this device on our under-sink cold water line for at least 8 years and have never had a problem. Must the system be drained before recharging?
Asked by Bett 11 years ago
Add your answer
Verified Reply- SupplyHouse StaffThe schrader valve on top can accommodate any standard air pump to recharge the air chamber.
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Q: Should this arrestor be installed upright position, or any position? Thanks.
Asked by W Wan 12 years ago
Add your answer
Verified Reply- Supplyhouse Staffyes it can be installed in any position.
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Q: how do you install this product?
Asked by linder 12 years ago
Add your answer
Verified Reply- SupplyHouse StaffThe connection is 1/2" NPT, you would have to tee it into your system. There is also a 3/4" hose thread fitting available if you are using it for a washing machine, part 0121229.
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