---
product_id: 456281135
title: "Watts 0372271 530C 3/4\" Poppet Style Adjustable Relief Valve"
brand: "watts"
price: "€ 351.43"
currency: EUR
in_stock: false
reviews_count: 5
category: "Watts"
url: https://www.desertcart.nl/products/456281135-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve
store_origin: NL
region: Netherlands
---

# Durable Brass & Stainless Steel Build 3/4" NPT Threaded Connections Adjustable Pressure Relief up to 300 PSI Watts 0372271 530C 3/4" Poppet Style Adjustable Relief Valve

**Brand:** watts
**Price:** € 351.43
**Availability:** ❌ Out of Stock

## Summary

> 🛡️ Protect your system with precision — don’t let pressure catch you off guard!

## Quick Answers

- **What is this?** Watts 0372271 530C 3/4" Poppet Style Adjustable Relief Valve by watts
- **How much does it cost?** € 351.43 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/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

- • **Easy Installation:** Standard 3/4" NPT threaded inlet and outlet connections for seamless integration.
- • **Robust Construction:** Solid brass body with stainless steel spring ensures long-lasting, corrosion-resistant performance.
- • **Versatile Application:** Perfect for commercial, residential, and industrial water, oil, or air systems.
- • **Trusted Brand Reliability:** Watts, a leader in plumbing solutions, delivering proven quality and peace of mind.
- • **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 safeguard water, oil, and air systems by releasing excess pressure up to 300 PSI. Featuring a durable brass body, stainless steel spring, and calibrated pressure adjustment, it offers reliable, corrosion-resistant protection 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: Valve
Review: Seems to work well.

## Features

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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00EZH8AQA |
| Best Sellers Rank | #186,485 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,796 in Industrial Pipe Fittings |
| Brand | WATTS |
| Brand Name | WATTS |
| Connector Type | Threaded |
| Customer Reviews | 4.1 out of 5 stars 41 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 |
| 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 |
| Specification Met | asme approved |
| Thread Size | 3/4" NPT |
| UPC | 098268018240 |
| Unit Count | 1 Count |
| Valve Type | relief valve,valve |

## 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

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



### ⭐⭐⭐⭐⭐ Seems to work well.
*by C***N on 29 July 2024*



### ⭐⭐⭐ Nicely made but...
*by S***E on 18 September 2025*



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**Shop now:** [https://www.desertcart.nl/products/456281135-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve](https://www.desertcart.nl/products/456281135-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-22*