what is the ranges for this valve up to 300 p.s.i.?

Type : Calibrated Pressure Nominal Size : 3/4 Inch Connection Type : FNPT Operating Pressure : 300 psi Setting Pressure : 50 To 175 psi Number Of Ports/Ways : 2 Body Material : Brass Disc Material : Buna-N (Nitrile) Bonnet : Brass Industry Standards : ISO Certified Temperature Rating : 180 deg F

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Watts 0372271 530C 3/4" Poppet Style Adjustable Relief Valve

Product ID: 456281135

Details

Brand
WATTS
Exterior finish
Brass Steel
Inlet connection size
0.75 Inches
Item dimensions L x W x H
9.7 x 5.8 x
Material
Brass

🔧Adjustable Calibrated Pressure Setting

⚙️3/4" NPT Threaded Connections

🛡️Up to 300 PSI Pressure Relief

R8111

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Description

🛠️ Master your pressure with Watts – safety and precision in every turn!

TRUSTED SAFETY VALVE - Protects your system from overpressure up to 300 PSI, preventing costly damage and downtime.
PRECISION PRESSURE CONTROL - Calibrated adjustment lets you dial in exact relief pressure for ultimate system safety.
COMPACT EASY INSTALLATION - Threaded 3/4" NPT inlet/outlet connections make setup quick and hassle-free.
VERSATILE APPLICATION READY - Ideal for commercial, residential, and industrial water, oil, or air systems.
DURABLE BRASS STAINLESS STEEL BUILD - Premium corrosion-resistant materials ensure long-lasting performance in any environment.

The Watts 0372271 530C is a 3/4" poppet style adjustable relief valve crafted from durable brass and stainless steel. Designed for commercial, residential, and industrial use, it features calibrated pressure adjustment up to 300 PSI and threaded NPT connections for easy installation. This valve safeguards systems containing water, oil, or air by preventing excessive pressure buildup, making it an essential component for reliable and safe operation.

Specifications

ASIN	B00EZH8AQA
Best Sellers Rank	#217,366 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,149 in Industrial Pipe Fittings
Brand	WATTS
Brand Name	WATTS
Connector Type	Threaded
Customer Reviews	4.2 out of 5 stars 42 Reviews
Exterior Finish	Brass,Stainless Steel
Exterior finish	Brass , Stainless Steel
Global Trade Identification Number	00098268018240
Inlet Connection Size	0.75 Inches
Inlet Connection Type	National Pipe Tapered
Inlet connection size	0.75 Inches
Inlet connection type	National Pipe Tapered
Item Dimensions	9.7 x 5.8 x 3.8 centimeters
Item Weight	0.01 Ounces
Item dimensions L x W x H	9.7 x 5.8 x 3.8 centimeters
Manufacturer	Watts
Manufacturer Part Number	372271
Material	Brass
Material Type	Brass
Maximum Pressure	300 Pound per Square Inch
Model Number	372271
Number of Ports	2
Outlet Connection Size	0.75 Inches
Outlet Connection Type	FNPT
Size	3/4 inch
Specification Met	asme approved
Thread Size	3/4" NPT
UPC	098268018240
Unit Count	1 Count
Valve Type	relief valve,valve

Reviews

C**N

Seems to work well.

I am using a jaccuzi pump for irrigation, and needed a blow off type of pressure regulator. I ran from the output back to the input, and set the pressure to 75 PSI. seems to be working. Mark.

29.07.2024

K**S

Valve

Good quality product .

21.05.2025

S**E

Nicely made but...

Nicely made but contains lead alloyed in the brass so risky?

18.09.2025

E**E

Relief valve

Part as described easily installed.

14.12.2024

D**K

Works as intended

A little over a year and it's still working fine

7.04.2025

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R8111

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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