---
product_id: 133369520
title: "One Way Check Valve 1/2\" Female Backflow Preventer, Check Valve for Repair NPT Female Thread Brass Float Reinforced - 0,5 inch Float Brass For Plumbing Water Boiler Heating System"
brand: "metalandbrassco"
price: "KD 3.60"
currency: KWD
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.kw/products/133369520-one-way-check-valve-1-2-female-backflow-preventer-check
store_origin: KW
region: Kuwait
---

# Float mechanism - smooth, quiet flow 1/2" NPT female thread - universal fit Heavy-duty brass - corrosion resistant One Way Check Valve 1/2" Female Backflow Preventer, Check Valve for Repair NPT Female Thread Brass Float Reinforced - 0,5 inch Float Brass For Plumbing Water Boiler Heating System

**Brand:** metalandbrassco
**Price:** KD 3.60
**Availability:** ✅ In Stock

## Summary

> 🚰 Keep your flow flawless—because your system deserves the best!

## Quick Answers

- **What is this?** One Way Check Valve 1/2" Female Backflow Preventer, Check Valve for Repair NPT Female Thread Brass Float Reinforced - 0,5 inch Float Brass For Plumbing Water Boiler Heating System by metalandbrassco
- **How much does it cost?** KD 3.60 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/133369520-one-way-check-valve-1-2-female-backflow-preventer-check)

## Best For

- metalandbrassco enthusiasts

## Why This Product

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

## Key Features

- • **DIY Friendly, Pro Approved:** Easy installation with no special tools required—perfect for quick repairs or upgrades by professionals and savvy homeowners alike.
- • **Precision Fit, Zero Hassle:** Standard 1/2" female NPT threads ensure seamless integration with your existing plumbing or heating systems—no adapters needed.
- • **Whisper-Quiet Flow Control:** Float-type valve minimizes water hammer and pressure fluctuations, protecting your system and enhancing operational smoothness.
- • **Built to Last, Built to Perform:** Crafted from premium brass with reinforced float design for superior durability and corrosion resistance in both hot and cold water environments.
- • **Versatile Protection for Your System:** Ideal for boilers, water heaters, HVAC, and circulation systems, preventing backflow and safeguarding your equipment from contamination.

## Overview

This 1/2" female NPT brass check valve features a reinforced float mechanism designed to prevent backflow in residential and commercial plumbing, heating, and boiler systems. Its heavy-duty brass construction ensures long-lasting corrosion resistance and reliable one-way flow control, while the float design reduces noise and pressure fluctuations. Easy to install and compatible with standard plumbing setups, it’s the smart choice for professionals and DIYers aiming to protect and optimize their water systems.

## Description

One Way Check Valve 1/2" Female Backflow Preventer, Check Valve for Repair NPT Female Thread Brass Float Reinforced - 0,5 inch Float Brass For Plumbing Water Boiler Heating System

## Features

- 1/2" NPT female thread brass check valve prevents backflow in water, boiler, and heating systems; ideal for residential or commercial plumbing setups requiring reliable one-way flow control.
- Constructed from heavy-duty brass with reinforced float mechanism for durability, corrosion resistance, and long-term performance in hot and cold water applications and pressurized systems.
- Float-type design provides smooth and quiet operation, reducing water hammer and pressure fluctuations; compatible with most standard plumbing, pump, or water heater installations.
- Easy to install with standard 1/2 inch female NPT connections; no special tools required—perfect for DIYers and professionals looking to upgrade or repair system check valves quickly.
- Suitable for water heaters, circulation systems, boilers, or HVAC setups; helps protect equipment by allowing one-way water flow and preventing contamination from back pressure.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Brass |
| Brand | Metalandbrassco |
| Exterior Finish | Copper,Metal,Plastic,Stainless Steel |
| Inlet Connection Size | 0.5 Inches |
| Inlet Connection Type | threaded |
| Outlet Connection Type | FNPT |
| Number of Ports | 2 |
| Outlet Connection Size | 0.5 Inches |
| Manufacturer | Metalandbrassco |
| UPC | 719243833312 |
| Part Number | 1234567 |
| Item Weight | 3.52 ounces |
| Package Dimensions | 2.87 x 1.42 x 1.18 inches |
| Item model number | 1234567 |
| Size | 1/2 inch |
| Measurement System | inch |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Brass
- **Brand:** Metalandbrassco
- **Exterior Finish:** Copper,Metal,Plastic,Stainless Steel
- **Inlet Connection Size:** 0.5 Inches
- **Inlet Connection Type:** threaded
- **Outlet Connection Type:** FNPT
- **Number of Ports:** 2
- **Outlet Connection Size:** 0.5 Inches
- **Manufacturer:** Metalandbrassco
- **UPC:** 719243833312

## Images

![One Way Check Valve 1/2" Female Backflow Preventer, Check Valve for Repair NPT Female Thread Brass Float Reinforced - 0,5 inch Float Brass For Plumbing Water Boiler Heating System - Image 1](https://m.media-amazon.com/images/I/51AhyZT3QuL.jpg)
![One Way Check Valve 1/2" Female Backflow Preventer, Check Valve for Repair NPT Female Thread Brass Float Reinforced - 0,5 inch Float Brass For Plumbing Water Boiler Heating System - Image 2](https://m.media-amazon.com/images/I/51dp3g6Ut0L.jpg)
![One Way Check Valve 1/2" Female Backflow Preventer, Check Valve for Repair NPT Female Thread Brass Float Reinforced - 0,5 inch Float Brass For Plumbing Water Boiler Heating System - Image 3](https://m.media-amazon.com/images/I/516FkqVF0UL.jpg)
![One Way Check Valve 1/2" Female Backflow Preventer, Check Valve for Repair NPT Female Thread Brass Float Reinforced - 0,5 inch Float Brass For Plumbing Water Boiler Heating System - Image 4](https://m.media-amazon.com/images/I/81UFmS-4kjL.jpg)
![One Way Check Valve 1/2" Female Backflow Preventer, Check Valve for Repair NPT Female Thread Brass Float Reinforced - 0,5 inch Float Brass For Plumbing Water Boiler Heating System - Image 5](https://m.media-amazon.com/images/I/81AlxVlX3GL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very Well Made
*by V***N on July 10, 2021*

Great little solid brass check valve. Not sure exactly what the cracking pressure is but I'm guessing around 10 because it's pretty tight. A little too tight for use on a RV pump but perfect for street pressure in a house.

### ⭐⭐⭐⭐ 1/2 in brass check valve
*by E***O on March 3, 2025*

good quality brass valve, expect good performance,

### ⭐⭐⭐⭐⭐ Worked perfectly
*by J***R on April 27, 2023*

Fit in tight space, working perfect.

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-02-04*