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Watts 0371271 530C 1/2" Poppet Style Adjustable Relief Valve

by Watts
3.3 out of 5 stars 4 customer reviews
| 4 answered questions

List Price: $98.50
Price: $43.29 & FREE Shipping. Details
You Save: $55.21 (56%)
Only 16 left in stock.
Sold by Greater Sales and Fulfilled by Amazon. Gift-wrap available.
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  • Calibrated adjustment feature for setting valve to relief pressure required
  • Adjustable range 50 to 175 psi (3.4 to 12.1 bar)
  • All brass construction
  • Inlet (bottom), male NPT threaded
  • Outlet (side), female NPT threaded
See more product details
8 new from $36.12

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$43.29 & FREE Shipping. Details Only 16 left in stock. Sold by Greater Sales and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

  • Watts 0556036 LF530C 3/4" Lead Free Calibrated Pressure Relief Valve,
  • +
  • Rain Bird P2A Pressure Gauge
Total price: $52.11
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Product Description

Color: N/A

Watts 530C ½": Calibrated Pressure Relief Valve is a spring operated brass valves designed for use only as protection from the buildup of excessive pressure in systems containing water, oil or air. 530C ½" valve incorporate a calibrated adjustment feature for setting the valve to the relief pressure required. These valves are ideally suited for bypass thermal expansion relief. MFR Part # 530C 1/2 Item Model # LF530-C 1/2"

Product Information

Color:N/A

Technical Details

Part Number 3/4" 530-C
Item Weight 6.4 ounces
Product Dimensions 3.8 x 2.3 x 1.5 inches
Item model number 1/2" 530-C
Color N/A
Finish N/A
Material Brass
Item Package Quantity 1

Additional Information

ASIN B000936L24
Customer Reviews
3.3 out of 5 stars 4 customer reviews

3.3 out of 5 stars
Best Sellers Rank #71,479 in Home Improvements (See top 100)
#59 in Industrial & Scientific > Hydraulics, Pneumatics & Plumbing > Valves > Relief Valves
Shipping Weight 6.4 ounces (View shipping rates and policies)
Date First Available April 28, 2005

Warranty & Support

Product Warranty: For warranty information about this product, please click here

Customer Reviews

Top Customer Reviews

Color: N/A Verified Purchase
Extremely fast shipping.
Played with pressure adjustment. Markings may not line up exactly with actual pressure needed to open the valve but it's close enough. I can finally rest at ease because I was able to easily adjust it to the range I need.
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Color: N/A Verified Purchase
Contains lead. Apparently not allowed for plumbing applications in California.

Other than that, it's adjustable.
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Color: N/A Verified Purchase
High quality valve!
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Used to replace a 75lb pressure relief valve installed by Ryland Homes, on a county water line, that a county employee told me gets up to 100 PSI. Every other time I ran the Rainbird system, the old valve on the main from the street would open and not shut. If I was away the water ran out into the street. You would think a neighbor might come over and shut it off, it is outside on the house, or ring the bell. I got a $580.00 water bill one month. Tampa, Hillsborough County, FL. Moreover, the old valve would not close again, until you shut the main off and turned it back on.

This one I set at 105 PSI and it has not opened once. I think I might turn it lower, until it does open and see if it closes on its own, once excess pressure is released by it. I have not done that yet.
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