---
product_id: 456281135
title: "Watts 0372271 530C 3/4\" Poppet Style Adjustable Relief Valve"
brand: "watts"
price: "140249 Ft"
currency: HUF
in_stock: true
reviews_count: 5
category: "Watts"
url: https://www.desertcart.hu/products/456281135-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve
store_origin: HU
region: Hungary
---

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

**Brand:** watts
**Price:** 140249 Ft
**Availability:** ✅ In Stock

## Summary

> ⚡ Protect your system with precision — relief valve mastery at your fingertips!

## Quick Answers

- **What is this?** Watts 0372271 530C 3/4" Poppet Style Adjustable Relief Valve by watts
- **How much does it cost?** 140249 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/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 and bronze body ensures long-term durability in commercial and residential setups.
- • **Easy Installation:** Standard NPT threaded connections guarantee a hassle-free, leak-proof fit every time.
- • **Trusted Performance:** Backed by Watts’ engineering excellence and a 4.1-star rating from professionals like you.
- • **Versatile Application:** Perfect for water, oil, and air systems—ideal for boilers, irrigation, and thermal expansion relief.
- • **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 crafted from durable brass and bronze. Designed for commercial, residential, and industrial use, it safely manages pressure up to 300 PSI in water, oil, and air systems. Featuring calibrated pressure adjustment and NPT threaded connections, it offers reliable, easy installation and trusted performance for critical pressure relief 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 | #186,275 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.hu/products/456281135-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve](https://www.desertcart.hu/products/456281135-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-22*