---
product_id: 639886005
title: "3\" PVC Backwater Valve, 3 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow"
brand: "cinsda"
price: "€ 69.51"
currency: EUR
in_stock: true
reviews_count: 8
category: "Cinsda"
url: https://www.desertcart.nl/products/639886005-3-pvc-backwater-valve-3-inch-back-flow-preventer-valve
store_origin: NL
region: Netherlands
---

# EPDM & rubber seals ensure 100% watertight protection Durable high-impact, heat & corrosion resistant PVC 3-inch PVC inlet for seamless integration 3" PVC Backwater Valve, 3 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow

**Brand:** cinsda
**Price:** € 69.51
**Availability:** ✅ In Stock

## Summary

> 🚫💧 Stop Backflow Before It Starts — Protect Your Space Like a Pro!

## Quick Answers

- **What is this?** 3" PVC Backwater Valve, 3 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow by cinsda
- **How much does it cost?** € 69.51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/639886005-3-pvc-backwater-valve-3-inch-back-flow-preventer-valve)

## Best For

- cinsda enthusiasts

## Why This Product

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

## Key Features

- • **Precision 3" PVC Fit:** Engineered for flawless connection with standard 3-inch drainage pipes, ensuring hassle-free installation.
- • **Versatile Application:** Ideal for residential and light industrial sewage systems, garden drains, septic tanks, and more—your all-in-one backflow solution.
- • **Leakproof Seal Technology:** Thickened rubber rings and EPDM seals guarantee zero backflow and no water leakage, protecting your property.
- • **Industrial-Grade Durability:** Constructed from robust PVC that resists heat, corrosion, and impact—built to last in any environment.
- • **Effortless Solvent-Weld Installation:** Designed for quick, secure solvent welding, saving you time and ensuring a permanent, watertight bond.

## Overview

The 3" PVC Backwater Valve by Cinsda is a high-impact, corrosion-resistant valve designed to prevent sewage backflow in drainage systems. Featuring solvent-weld connections and advanced rubber sealing technology, it ensures a watertight, durable installation ideal for both residential and light industrial use.

## Description

Wide range of uses: Made of hard PVC and corrosion resistance. Perfect for indoor and outdoor use, drainage and sewer piping systems; patio, lawn, garden, and septic tank piping systems etc. Installed in the PVC drain and sewer pipe system.

Review: French Drain backflow preventer - Works as it should
Review: Handy man - Buena calidad,evitar cuando limpia el gobierno sistema sanitario

## Features

- Designed for connecting 3-inch PVC drains in the drainage system, this valve prevents the backflow of water in the pipeline due to pressure reduction or other potential causes.
- The backwater valve is made of sturdy PVC for high impact strength and resistance to heat and corrosion.
- Our back flow preventer valve can be solvent-welded for a watertight connection. The installation is simple and efficient.
- Thickened rubber rings embedded in the water stop baffle guarantee a watertight seal, and the access cover is also sealed with EPDM rubber to prevent water leakage.
- The backflow valve, as part of the DWV system, is suitable for connecting PVC sewers and drains. Ideal for sewage disposal in household and certain industries, it prevents sewer backflow.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Cinsda |
| Exterior Finish | PVC |
| Inlet Connection Size | 3 Inches |
| Inlet Connection Type | Solvent |
| Item dimensions L x W x H | 7.46 x 5.16 x 5.8 inches |
| Material | PVC |

## Product Details

- **Material:** Polyvinyl Chloride
- **Brand:** Cinsda
- **Item dimensions L x W x H:** 7.46 x 5.16 x 5.8 inches
- **Exterior Finish:** PVC
- **Inlet Connection Size:** 3 Inches
- **Inlet Connection Type:** Solvent
- **Outlet Connection Type:** Solvent
- **Number of Ports:** 1
- **Outlet Connection Size:** 3 Inches
- **Manufacturer:** Cinsda

## Images

![3" PVC Backwater Valve, 3 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow - Image 1](https://m.media-amazon.com/images/I/5189RWlm2+L.jpg)
![3" PVC Backwater Valve, 3 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow - Image 2](https://m.media-amazon.com/images/I/51d2iWhSxjL.jpg)
![3" PVC Backwater Valve, 3 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow - Image 3](https://m.media-amazon.com/images/I/61Ud3aHBrNL.jpg)
![3" PVC Backwater Valve, 3 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow - Image 4](https://m.media-amazon.com/images/I/61VNt5B7hVL.jpg)
![3" PVC Backwater Valve, 3 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow - Image 5](https://m.media-amazon.com/images/I/61dAErehddL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ French Drain backflow preventer
*by R***S on October 10, 2025*

Works as it should

### ⭐⭐⭐⭐⭐ Handy man
*by 2***3 on September 24, 2025*

Buena calidad,evitar cuando limpia el gobierno sistema sanitario

### ⭐⭐⭐⭐⭐ Buried
*by A***R on September 15, 2025*

Seemed good enough, we'll find out if water doesn't backflush

## Frequently Bought Together

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-26*