---
product_id: 697689604
title: "Watts 0372271 530C 3/4\" Poppet Style Adjustable Relief Valve"
brand: "watts"
price: "A$305"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/697689604-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve
store_origin: AU
region: Australia
---

# Adjustable calibrated pressure relief 3/4" NPT threaded inlet/outlet Durable brass & stainless steel build Watts 0372271 530C 3/4" Poppet Style Adjustable Relief Valve

**Brand:** watts
**Price:** A$305
**Availability:** ✅ In Stock

## Summary

> 🛠️ Master your system’s pressure with precision and style!

## Quick Answers

- **What is this?** Watts 0372271 530C 3/4" Poppet Style Adjustable Relief Valve by watts
- **How much does it cost?** A$305 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/697689604-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

- • **Versatile Application:** Ideal for commercial, residential, and industrial water, oil, or air systems—protect what matters.
- • **Threaded NPT Connections:** Standard 3/4" NPT male inlet and female outlet for seamless integration with existing plumbing.
- • **Robust Brass Construction:** Premium brass body ensures long-lasting durability and corrosion resistance in any environment.
- • **Trusted Brand Reliability:** Manufactured by Watts in the USA, meeting ASME specs for peace of mind and performance.
- • **Precision Pressure Control:** Calibrated adjustment lets you set exact relief pressure for ultimate system safety.

## Overview

The Watts 0372271 530C is a 3/4" poppet style adjustable relief valve crafted from durable brass with stainless steel spring components. Featuring calibrated pressure adjustment and standard NPT threaded connections, it safeguards commercial, residential, and industrial systems against excessive pressure in water, oil, or air applications. Engineered for reliability and ease of integration, this valve is a trusted solution for pressure relief needs.

## 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.

## Features

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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Brass |
| Brand | WATTS |
| Item dimensions L x W x H | 9.7 x 5.8 x 3.8 Centimeters |
| Exterior Finish | oil |
| Inlet Connection Type | National Pipe Tapered |
| Outlet Connection Type | Flange |
| Number of Ports | 2 |
| Specification Met | ASME |
| Global Trade Identification Number | 00098268018240 |
| Manufacturer | Watts |
| UPC | 098268018240 |
| Country of Origin | USA |
| Item model number | 372271 |
| Product Dimensions | 9.65 x 5.84 x 3.81 cm; 0.28 g |
| ASIN | B00EZH8AQA |

## Product Details

- **Material:** Brass
- **Brand:** WATTS
- **Item dimensions L x W x H:** 9.7 x 5.8 x 3.8 Centimeters
- **Exterior Finish:** oil
- **Inlet Connection Type:** National Pipe Tapered
- **Outlet Connection Type:** Flange
- **Number of Ports:** 2
- **Specification Met:** ASME
- **Global Trade Identification Number:** 00098268018240
- **Manufacturer:** Watts

## 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

## Frequently Bought Together

- Watts 0372271 530C 3/4" Poppet Style Adjustable Relief Valve
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**Shop now:** [https://www.desertcart.com.au/products/697689604-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve](https://www.desertcart.com.au/products/697689604-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-20*