---
product_id: 557110724
title: "HYDRO MASTER Safety Relief Valve With 3/4 Inch Thread 30 PSI ASME Hot Water (30 PSI)"
brand: "hydro master"
price: "$995"
currency: MXN
in_stock: true
reviews_count: 8
category: "Hydro Master"
url: https://www.desertcart.mx/products/557110724-hydro-master-safety-relief-valve-with-3-4-inch-thread
store_origin: MX
region: Mexico
---

# 3/4" NPT threaded inlet – universal fit 30 PSI pressure rating – precise safety control All brass body & stainless steel spring – corrosion resistant HYDRO MASTER Safety Relief Valve With 3/4 Inch Thread 30 PSI ASME Hot Water (30 PSI)

**Brand:** hydro master
**Price:** $995
**Availability:** ✅ In Stock

## Summary

> 🛠️ Upgrade your safety game with HYDRO MASTER – because your home deserves the best defense!

## Quick Answers

- **What is this?** HYDRO MASTER Safety Relief Valve With 3/4 Inch Thread 30 PSI ASME Hot Water (30 PSI) by hydro master
- **How much does it cost?** $995 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/557110724-hydro-master-safety-relief-valve-with-3-4-inch-thread)

## Best For

- hydro master enthusiasts

## Why This Product

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

## Key Features

- • **Quick & Easy Installation:** Designed for fast replacement—get your system back up and running in minutes, no plumber required.
- • **Universal 3/4" Threaded Fit:** Seamlessly integrates with most U.S. residential hot water systems for hassle-free upgrades.
- • **Trusted ASME Certified Safety:** Meets rigorous safety standards, giving you peace of mind and compliance confidence.
- • **Precision 30 PSI Pressure Relief:** Protects your system by releasing excess pressure exactly when needed—no compromises.
- • **Durable Brass & Stainless Steel Build:** Engineered to resist corrosion and ensure long-lasting, reliable performance under pressure.

## Overview

The HYDRO MASTER Safety Relief Valve features a universal 3/4" male NPT threaded inlet, an all-brass body paired with a stainless steel spring for superior corrosion resistance, and a precise 30 PSI pressure rating. Designed for easy installation and reliable protection, this ASME-certified valve is ideal for most U.S. residential hot water systems, ensuring your plumbing stays safe and efficient.

## Description

desertcart.com: HYDRO MASTER Safety Relief Valve With 3/4 Inch Thread 30 PSI ASME Hot Water (30 PSI) : Industrial & Scientific

Review: Good part fast delivery - Good quality fit well. Arrived timely. Thanks
Review: Plumber recommended.. - So when my boiler system started leaking out of this particular valve, I was of course in the market for a new one. I never knew there were so many different manufacturers of the same item to choose from. Holy crap. On the bright side however my father-in-law has been a plumber for about 50 years and after a quick phone call in his direction I narrowed my search down to well, this one. The only thing he cautioned me on was to look at the old one before you replace it and make sure the new one has the same markings PSI etc etc, and other than that it's pretty easy. Shut off the water supply, relieve the pressure, unscrew the old one and with the use of a little bit of thread tape, screw this one on and snug it down. The whole repair took me about 4 minutes.

## Features

- 3/4" male NPT threaded inlet for connecting to a female NPT threaded connection.
- ALL brass body and stainless steel spring for corrosion resistance.
- Designed for protection against excessive pressure only
- Universal 3/4" size is suitable for most U.S. residential usage.
- Easy and fast installation.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | HYDRO MASTER |
| Exterior Finish | Brass , Stainless Steel |
| Inlet Connection Size | 3/4 Inches |
| Inlet Connection Type | National Pipe Tapered |
| Item dimensions L x W x H | 3.2 x 1.6 x 1.8 inches |
| Material | Brass |

## Product Details

- **Material:** Brass
- **Brand:** HYDRO MASTER
- **Item dimensions L x W x H:** 3.2 x 1.6 x 1.8 inches
- **Exterior Finish:** Brass, Stainless Steel
- **Inlet Connection Size:** 3/4 Inches
- **Inlet Connection Type:** National Pipe Tapered
- **Outlet Connection Type:** NPT Thread
- **Maximum Operating Pressure:** 30 Pound per Square Inch
- **Number of Ports:** 2
- **Outlet Connection Size:** 3/4 Inches

## Images

![HYDRO MASTER Safety Relief Valve With 3/4 Inch Thread 30 PSI ASME Hot Water (30 PSI) - Image 1](https://m.media-amazon.com/images/I/61yQEgmVl8L.jpg)
![HYDRO MASTER Safety Relief Valve With 3/4 Inch Thread 30 PSI ASME Hot Water (30 PSI) - Image 2](https://m.media-amazon.com/images/I/61yARYN7GkL.jpg)
![HYDRO MASTER Safety Relief Valve With 3/4 Inch Thread 30 PSI ASME Hot Water (30 PSI) - Image 3](https://m.media-amazon.com/images/I/51fl9FhWNsL.jpg)
![HYDRO MASTER Safety Relief Valve With 3/4 Inch Thread 30 PSI ASME Hot Water (30 PSI) - Image 4](https://m.media-amazon.com/images/I/61dXjilBXzL.jpg)
![HYDRO MASTER Safety Relief Valve With 3/4 Inch Thread 30 PSI ASME Hot Water (30 PSI) - Image 5](https://m.media-amazon.com/images/I/61v6dqjXNfL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good part fast delivery
*by M***A on January 17, 2026*

Good quality fit well. Arrived timely. Thanks

### ⭐⭐⭐⭐⭐ Plumber recommended..
*by W***N on August 28, 2025*

So when my boiler system started leaking out of this particular valve, I was of course in the market for a new one. I never knew there were so many different manufacturers of the same item to choose from. Holy crap. On the bright side however my father-in-law has been a plumber for about 50 years and after a quick phone call in his direction I narrowed my search down to well, this one. The only thing he cautioned me on was to look at the old one before you replace it and make sure the new one has the same markings PSI etc etc, and other than that it's pretty easy. Shut off the water supply, relieve the pressure, unscrew the old one and with the use of a little bit of thread tape, screw this one on and snug it down. The whole repair took me about 4 minutes.

### ⭐⭐⭐⭐⭐ A savior.
*by P***L on April 22, 2025*

Exactly what was needed to replace a failed pressure relief valve on our boiler. Of course it failed in the cold of winter. Timely delivery and was able to keep my family warm.

## Frequently Bought Together

- HYDRO MASTER Safety Relief Valve With 3/4 Inch Thread 30 PSI ASME Hot Water (30 PSI)
- Hydro Master Automatic Air Vent Valve 1/8 Inch Brass
- Watts 0342691 30 PSI Pressure Relief Valve, Bronze, 3/4" 335 M2-030

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**Shop now:** [https://www.desertcart.mx/products/557110724-hydro-master-safety-relief-valve-with-3-4-inch-thread](https://www.desertcart.mx/products/557110724-hydro-master-safety-relief-valve-with-3-4-inch-thread)

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-02-13*