---
product_id: 456281135
title: "Watts 0372271 530C 3/4\" Poppet Style Adjustable Relief Valve"
brand: "watts"
price: "52258 kr"
currency: ISK
in_stock: true
reviews_count: 5
category: "Watts"
url: https://www.desertcart.is/products/456281135-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve
store_origin: IS
region: Iceland
---

# NPT threaded inlet & outlet for secure fit Adjustable pressure relief up to 300 PSI Durable brass & bronze construction Watts 0372271 530C 3/4" Poppet Style Adjustable Relief Valve

**Brand:** watts
**Price:** 52258 kr
**Availability:** ✅ In Stock

## Summary

> 🔧 Stay pressure-safe and ahead of the curve with Watts’ precision relief valve!

## Quick Answers

- **What is this?** Watts 0372271 530C 3/4" Poppet Style Adjustable Relief Valve by watts
- **How much does it cost?** 52258 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/456281135-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve)

## Best For

- watts enthusiasts

## Why This Product

- Trusted watts brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Robust brass body and stainless steel spring ensure long-lasting, corrosion-resistant performance.
- • **Easy Installation:** Standard NPT threaded connections guarantee a hassle-free, leak-proof setup every time.
- • **Trusted Brand Quality:** From Watts, a leader in plumbing solutions, backed by solid 4.1-star user satisfaction.
- • **Versatile Application:** Ideal for commercial, residential, and industrial water, oil, or air systems—protects your investment.
- • **Precision Pressure Control:** Calibrated adjustment lets you dial in exact relief pressure for ultimate system safety.

## Overview

The Watts 0372271 530C is a 3/4" poppet style adjustable relief valve designed to protect water, oil, and air systems from excessive pressure. Featuring a durable brass and bronze construction, stainless steel spring, and calibrated pressure adjustment up to 300 PSI, it offers reliable, corrosion-resistant performance. With NPT threaded inlet and outlet connections, it ensures easy installation and secure fit, making it ideal for commercial, residential, and industrial applications.

## Description

Series 530C Calibrated Pressure Relief Valves are used in commercial, residential and industrial applications to protect against excessive pressure in systems containing water, oil, or air. It consists of a bronze body construction with NPT threaded male inlet and NPT threaded female (drain) outlet connections, stainless steel spring, brass bonnet, Buna-N disc, and Buna-N O-ring. Series 530C has a calibrated adjustment feature for setting the valve to the required relief pressure, and is ideal for by-pass thermal expansion pressure relief (not ASME approved). Model 530FP is for use in fire protection systems.

Review: Good quality product .
Review: 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.

## Features

- Poppet Style Adjustable Relief Valve
- Watts 3/4" 530C Releif Valve
- Boiler relief valve
- Brass construction
- Threaded

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00EZH8AQA |
| ASIN  | B00EZH8AQA |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #186,289 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,798 in Industrial Pipe Fittings |
| Customer Reviews | 4.1 4.1 out of 5 stars (41) |
| Customer reviews | 4.1 4.1 out of 5 stars (41) |
| Date First Available | 16 July 2022 |
| Date First Available  | 16 July 2022 |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 0.28 g |
| Item model number | 372271 |
| Item model number  | 372271 |
| Manufacturer | Watts |
| Manufacturer  | Watts |
| Material | Brass |
| Maximum Pressure | 300 Pound per Square Inch |
| Part number | 372271 |
| Product Dimensions | 9.65 x 5.84 x 3.81 cm; 0.28 g |
| Product Dimensions  | 9.65 x 5.84 x 3.81 cm; 0.28 g |
| Specification met | asme approved |

## Product Details

- **Brand:** WATTS
- **Exterior finish:** Brass,Stainless Steel
- **Inlet connection size:** 0.75 Inches
- **Item dimensions L x W x H:** 9.7 x 5.8 x 3.8 centimeters
- **Material:** Brass

## Images

![Watts 0372271 530C 3/4" Poppet Style Adjustable Relief Valve - Image 1](https://m.media-amazon.com/images/I/71R0zad7DCL.jpg)

## Questions & Answers

**Q: does this have 3/4 out outlet? seems some don't.**
A: 1/2 inch FIP outlet

**Q: what is the ranges for this valve up to 300 p.s.i.?**
A: 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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by K***S on 21 May 2025*

Good quality product .

### ⭐⭐⭐⭐⭐ Review
*by C***N on 29 July 2024*

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.

### ⭐⭐⭐ Review
*by S***E on 18 September 2025*

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

## Frequently Bought Together

- Watts 0372271 530C 3/4" Poppet Style Adjustable Relief Valve
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**Shop now:** [https://www.desertcart.is/products/456281135-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve](https://www.desertcart.is/products/456281135-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-21*