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Main product image of 100XL-4 3/4" Self Closing T & P Relief Valve
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100XL-4 3/4" Self Closing T & P Relief Valve

Brand:
Watts
SKU:
0066100
Rating:
(5)
Q&A:
(1)
100XL-4 3/4" Self Closing T & P Relief Valve
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0066100 has been discontinued
Discontinued January 12, 2024
This product was discontinued by the manufacturer.

Non-Potable Water Applications

This product does not comply with the “Safe Drinking Water Act,” which requires that products meet low-lead standards in order to be used in systems providing water for human consumption (drinking or cooking). This item is for non-potable (non-human consumption) water applications only.
Direct Replacement:
LF100XL-4 3/4" Lead Free Self Closing T & P Relief Valve
Brand:
Watts
SKU:0556000
(16)
Order by today, receive 188 by Tuesday
VIEW REPLACEMENT
VIEW REPLACEMENT

Product Highlights

Product Highlight: Size
3/4"
Product Highlight: Inlet Type
MNPT
Product Highlight: Outlet Type
FNPT
Product Highlight: Pressure Set Point
150 psi
Product Highlight: Capacity (BTU)
105000 BTU Capacity
Product Highlight: Material
Bronze

Description

\Series 100XL Temperature and Pressure Relief Valves are used in water heater and hot water storage tank applications to provide automatic temperature and pressure protection to hot water supply tanks and hot water heaters up to 100,000 BTU/hr. They feature a bronze body with NPT male inlet and NPT female outlet connections, unique thermostat with special thermo-bonded coating, and a test lever.
  • Model 100XL-8 is also available with 8" (200mm) extension thermostat.
  • Series 100XL is ASME rated and CSA listed. Temperature Relief: 210°F (99°C),
  • Pressure Relief Range: 75 to 150psi (5.2 to 10.3 bar),
  • Standard Pressure Settings: 75, 100, 125, or 150psi (5.27, 7.03, 8.79, or 10.55 bar).

Specs

Application:

Heating

Material:

Bronze

Pressure Set Point:

150 psi

Size:

3/4"

Thermostat Length:

4"

Connection Type:

Threaded

Thread Type:

Female

Male

Inlet Type:

MNPT

Outlet Type:

FNPT

Temperature Range (F):

210°F Max

Width:

1-3/4"

Height:

7-1/2"

Capacity (BTU):

105000

CSA Rating (BTU/HR):

105000

Capacity:

105000 BTU/hr

Weight:

12 oz

ASME:

Yes

Contact

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Product Reviews

4.4 out of 5 reviews
100% would recommend this product
4.4
out of 5 Reviews
100% would recommend this product
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5 star
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4 star
20%
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Showing 1-5 of 5 reviews

OEM!!!

This product is a direct OEM replacement! Fits perfectly, and the leaks have stopped! Well, for now, I still need to get a Pressure Reducing Valve (PRV) installed, but I am very satisfied with the quality and fitment of the product. Highly recommend, and PEX Supply had it at the best price!
Worker Bee
Atlanta, GA
13 years ago
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Great work!

A trusted name that is performing as expected.
Blade
Londonderry, NH
13 years ago
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Will buy again

We will use this T &P Valve in Gas water heaters it is very nice product
M Hanif Ghanchi
Pakistan
14 years ago
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good part

my previous one was leaking and bought this one, and installed it a few days ago. so far it's working. Nothing to complain.
Jack L
Morris county, NJ
15 years ago
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Standard product[...]

Should come with clear instructions about testing and replacement. And not changing specifications for particular use
Harry Smith
Bergen County New Jersey
15 years ago
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Product Q&A

1 Question
1 Question
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Q: Is the pressure limit adjustable on the 100XL Relief Valve? How is it adjusted?

Asked by 15 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

This valve is not adjustable.

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- M Hanif Ghanchi

Can not adjust pressure as it is pre set

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