Apply to be a TradeMaster!
Main product image of SX-40V Extrol Expansion Tank (20 Gallon Volume)
Magnifying glass
Hover image to zoom

SX-40V Extrol Expansion Tank (20 Gallon Volume)

Brand:
Amtrol
SKU:
118-78
Rating:
(16)
Q&A:
(3)
SX-40V Extrol Expansion Tank (20 Gallon Volume)
Magnifying glass
Hover image to zoom
$300.09 each
In Stock
In Stock
Get 16 Tomorrow, Jun 17
Order by 6PM, receive Tomorrow

MANUALS (4)

Free Shipping This item ships free
Easy Returns No restocking fee for 90 days

Product Highlights

Product Highlight: Tank Volume
20 Gallons
Product Highlight: Warranty
1 Year Warranty
Product Highlight: Max Pressure (PSI)
100 MAX PSI
Product Highlight: Height
32.5"
Product Highlight: Thread Type
Female Thread Type
Product Highlight: Diameter (Inches)
15-3/8" Diameter

Description


Performance Data
Factory pre-charged to 12 psig
Pre-charge should be adjusted to equal minimum operating pressure at tank location
Maximum working pressure: 100 psig
Maximum operating temperature: 240 degrees F

Specs

Tank Volume:

20 Gallons

Height:

32.5"

Application:

Heating

Max Pressure (PSI):

100

Thread Type:

Female

Diameter (Inches):

15-3/8"

Max Accepted Volume:

11.3 Gallons

Max Temp (F):

240°F

Precharged PSI:

12 psi

Thread Size:

1"

Warranty:

1 Year

Contact

Help Face
CALL US
Question? Call or text 888-757-4774
+
Help Face

Questions?

Speak with a real person who will go out of the way to help!
Call or text 888-757-4774
MondayThursday
8am7:45pm
Friday
9am7:45pm
SaturdaySunday
9am5:45pm


Need help calculating?
Use Our Calculator

Compare Similar Products

Brand
Tank Volume
Height
Application
Diameter (Inches)
Max Accepted Volume
CURRENT ITEM
Product Image of SX-40V Extrol Expansion Tank (20 Gallon Volume)
SX-40V Extrol Expansion Tank (20 Gallon Volume)
SKU: 118-78
(16)
20 Gallons
32.5"
Heating
15-3/8"
11.3 Gallons
20 Gallons
32.5"
Heating
15-3/8"
11.3 Gallons
20 Gallons
32-1/2"
Heating
15-3/8"
11.3 Gallons

You May Also Need

1-1/2" Press Full Port Forged Brass Uni-Flange Isolator Flange
SKU: 81406HV
Webstone

Product Reviews

4.75 out of 16 reviews
93% would recommend this product
4.75
out of 16 Reviews
93% would recommend this product
WRITE A REVIEW
5 star
94%
4 star
0%
3 star
0%
2 star
0%
1 star
6%
WRITE A REVIEW
Customer Images

Most Liked Positive Review

Plenty of Expansion for Solar Hot Water

I used this expansion tank to replace one that was smaller. My solar hot water-SHW system required more expansion for those hot summer days when the sun beats down on the roof and adds a tremendous amount of heat to the system.
VS

Most Liked Negative Review

Time will tell.

I bought 3 of these 3 years ago. One has already failed and they only have a 1 year warranty. It is being used on a heating system with proper chemical treatment as the manufacturer recommends.
Showing 1-10 of 16 reviews

I would buy this product again, and have.

Used to keep closed loop pressure static. Works well
Francis
Madison
2 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

perfect arrival

put tank into setvice in a few days. working fine.
pumpsandworksn
REDWOOD CITY
4 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

.I would buy again.

Wood boiler, works great, large size, easy plump.
Bill
Stafford, ct
4 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

YES

THIS PRODUCT WAS USED IN ONE OF FACILITIES FOR THE HOSPITAL. THE ARRIVAL TIME WAS AWESOME. THANK YOU!
MOE
NORTH DAKOTA
4 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Boiler replacement part

It was just good for the application it's made for , and thanks for the best service (shipped & delivered). From supply house .com , they are just great !!!
Palti
New York
4 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

I'll buy one again.

Expertly packed, no damage, works great !!
Luck
PA
7 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

No more over pressure issues

Several times every heating season the 30lb relief would burb. This started after a local plumber replaced the rafter mounted non-bladder expansion tank with an undersized bladder tank perched on a cinder block. I'm guessing that plumber didn't factor in the house has cast iron radiators on both floors. Pressure now holds at a steady 12psi
Not a real plumber
Up-State NY
7 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Would buy again

Perfect match
TJ
Minnesota
7 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Worked as expected

It came quick from supply house. No comments needed.
Max
NJ
8 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Excellent Packaging

Standard floor mount expansion tank. My only complaint is the 1" fitting.....why? 1/2" certainly does the trick on an expansion tank, but this is a minor complaint. I was nervous ordering this from Supplyhouse as it is a large item and I was concerned about damage in transit. It came so well packaged that while transferring it to the job site in the supplied packaging, it took a ride off my trailer onto the highway at 70+MPH. Most of the bubble wral wasn't even touched let alone the manufacturer's packaging. It looked perfect with no damage at all.
Pellergy
Montpelier, VT
8 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Product Q&A

3 Questions
3 Questions
ASK A QUESTION

Q: is this tank ASME rated?

Asked by jason 14 years ago

Add your answer

* Required Field
Verified Author and ReplyVerified Reply- PexSupply Staff

It is not. AX-40V is the ASME version of this tank.

Was this review helpful to you?
-

No it is not.

Was this review helpful to you?

Q: is this for domestic hot water ?

Asked by 15 years ago

Add your answer

* Required Field
Verified Author and ReplyVerified Reply- PexSupply Staff

No, it is not for domestic hot water. This unit is for heating.

Was this review helpful to you?

Q: What is the warranty on this tank?

Asked by Tim 16 years ago

Add your answer

* Required Field
Verified Author and ReplyVerified Reply- PexSupply Staff

There is a one year warranty on this unit.

Was this review helpful to you?
Free Shipping
On orders over $99
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Shipping Policy
Easy Returns
Returning items is as simple as 1-2-3
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.
Return Policy