---
product_id: 146093524
title: "Backflow Preventer 3/4 In Water Pressure Reducing Valve, Npt Thread Union X Npt Female, Max Work 400 psi, Adjust 25-75 psi"
brand: "watts"
price: "€ 258.09"
currency: EUR
in_stock: true
url: https://www.desertcart.gr/products/146093524-backflow-preventer-3-4-in-water-pressure-reducing-valve-npt
store_origin: GR
region: Greece
---

# Lead-free water-safe valve Adjustable 25-75 psi range Max 400 psi pressure Backflow Preventer 3/4 In Water Pressure Reducing Valve, Npt Thread Union X Npt Female, Max Work 400 psi, Adjust 25-75 psi

**Brand:** watts
**Price:** € 258.09
**Availability:** ✅ In Stock

## Summary

> 💧 Control your flow, save your dough — pressure perfected.

## Quick Answers

- **What is this?** Backflow Preventer 3/4 In Water Pressure Reducing Valve, Npt Thread Union X Npt Female, Max Work 400 psi, Adjust 25-75 psi by watts
- **How much does it cost?** € 258.09 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/146093524-backflow-preventer-3-4-in-water-pressure-reducing-valve-npt)

## 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

- • **Robust Durability:** Constructed with lead-free copper silicon alloy and brass finish for long-lasting, corrosion-resistant performance.
- • **Thermal Expansion Bypass:** Smart bypass feature prevents damage from thermal expansion, ensuring system longevity.
- • **Eco-Friendly Water Savings:** Reduce water waste and cut domestic heating costs by up to 30%—because every drop counts.
- • **Precision Pressure Control:** Easily adjust water pressure from 25 to 75 psi for optimal appliance protection and efficiency.
- • **Effortless Installation & Maintenance:** Threaded union design enables quick setup and hassle-free inline servicing.

## Overview

The Watts 3/4" Lead-Free Water Pressure Reducing Valve offers precise pressure regulation up to 400 psi with an adjustable range of 25-75 psi. Designed for easy installation and maintenance, it features a durable lead-free copper silicon alloy body, thermal expansion bypass, and complies with major plumbing standards. Ideal for commercial, industrial, and residential use, it helps reduce water waste and energy costs while protecting your plumbing system.

## Description

Watts Backflow Preventer 3/4 In Water Pressure Reducing Valve, Npt Thread Union X Npt Female, Max Work 400 psi, Adjust 25-75 psi

## Features

- LEAD-FREE WATER PRESSURE REDUCTION: The Watts 3/4" Lead-Free Water Pressure Reducing Valve is installed at or near meters to cost-effectively control water pressure flowing to appliances and outlets in commercial, industrial, and residential applications. This assembly includes an NPT threaded union female inlet by NPT female outlet connection, a removable integral stainless steel strainer, thermoplastic seat, bronze-sealed spring cage for accessible outdoor waterworks or pit installations, and thermal expansion bypass.
- EASY INSTALLATION AND MAINTENANCE: This lead-free water pressure reducing valve is designed for straightforward installation with easy handling and in-line serviceability, featuring a thread union by NPT female connection that simplifies the installation process.
- THERMAL EXPANSION PROTECTION: The valve includes a bypass feature that effectively controls thermal expansion pressure, permitting the flow of water back through the valve into the main when pressures - due to thermal expansion on the outlet side of the valve - exceed the pressure in the main supply. It has an operating temperature range of 33° F (0.5° C) to 180° F (82° C).
- VERSATILE PRESSURE ADJUSTMENT: This valve is suitable for pressures up to 400 psi (27.6 bar) and allows for an adjustable pressure range between 25 to 75 psi (172 to 517 kPa), with a standard setting at 50 psi (345 kPa).
- EVERY DROP COUNTS: Water. It's in our name and close to our hearts. Since 1874, Watts Water Technologies has been delivering innovative technologies that make the world's most precious resource safe and accessible. Everything we design is made to keep the Earth's most precious resource safer, cleaner, and more useful for our customers. Our family of brands offers one of the most varied product lines in the world, with world-class, water-related solutions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Lead Free Copper Silicon Alloy |
| Brand | Watts |
| Item dimensions L x W x H | 7.38 x 5.63 x 2.44 inches |
| Exterior Finish | Brass |
| Inlet Connection Size | 0.75 Inches |
| Inlet Connection Type | National Pipe Tapered |
| Outlet Connection Type | FNPT |
| Maximum Operating Pressure | 400 Pound per Square Inch |
| Number of Ports | 2 |
| Outlet Connection Size | 0.75 Inches |
| Specification Met | ASSE Standard 1003; (ANSI A112.262), CSA Standard B356, IAPMO |
| Global Trade Identification Number | 00098268333701 |
| Manufacturer | Watts |
| UPC | 098268333701 |
| Part Number | 0009589 |
| Item Weight | 2 pounds |
| Product Dimensions | 7.38 x 5.63 x 2.44 inches |
| Item model number | LFN55BM1 U ¾ |
| Size | 0.75 Inch |
| Color | Adjust 25-75 psi |
| Style | NPT Threaded Union Female Inlet x NPT Female Outlet |
| Pattern | Valve |
| Item Package Quantity | 1 |
| Included Components | Valve |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Warranty |

## Product Details

- **Material:** Lead Free Copper Silicon Alloy
- **Brand:** Watts
- **Item dimensions L x W x H:** 7.38 x 5.63 x 2.44 inches
- **Exterior Finish:** Brass
- **Inlet Connection Size:** 0.75 Inches
- **Inlet Connection Type:** National Pipe Tapered
- **Outlet Connection Type:** FNPT
- **Maximum Operating Pressure:** 400 Pound per Square Inch
- **Number of Ports:** 2
- **Outlet Connection Size:** 0.75 Inches

## Images

![Backflow Preventer 3/4 In Water Pressure Reducing Valve, Npt Thread Union X Npt Female, Max Work 400 psi, Adjust 25-75 psi - Image 1](https://m.media-amazon.com/images/I/81DKqzDVkLL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Frequently Bought Together

- Watts Backflow Preventer 3/4 In Water Pressure Reducing Valve, Npt Thread Union X Npt Female, Max Work 400 psi, Adjust 25-75 psi
- SENCTRL 0-200 Psi Water Pressure Gauge Test with Lazy Hand, Lead-Free, Waterproof, 2.5" Dial Size, 3/4" Female Garden Hose Thread, Stainless Steel Case, for Home Potable Water, House Tube

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-04*