---
product_id: 639886006
title: "4\" PVC Backwater Valve, 4 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow"
brand: "cinsda"
price: "€ 105.08"
currency: EUR
in_stock: true
reviews_count: 6
url: https://www.desertcart.nl/products/639886006-4-pvc-backwater-valve-4-inch-back-flow-preventer-valve
store_origin: NL
region: Netherlands
---

# Watertight EPDM seals Heat & corrosion resistant 4-inch PVC connection 4" PVC Backwater Valve, 4 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow

**Brand:** cinsda
**Price:** € 105.08
**Availability:** ✅ In Stock

## Summary

> 🚫💧 Stop Backflow Before It Starts – Protect Your Space with Confidence!

## Quick Answers

- **What is this?** 4" PVC Backwater Valve, 4 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow by cinsda
- **How much does it cost?** € 105.08 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/639886006-4-pvc-backwater-valve-4-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

- • **Durable PVC Build:** Engineered for high impact strength and long-lasting corrosion resistance.
- • **Solvent-Weld Ready:** Creates a permanent, watertight bond for reliable backflow prevention.
- • **Leakproof EPDM Seals:** Thickened rubber rings and EPDM cover ensure zero water leakage under pressure.
- • **Precision 4-Inch Fit:** Seamlessly integrates with standard PVC drainage systems for hassle-free installation.
- • **Versatile Application:** Ideal for residential and light industrial sewage systems, protecting your property from costly backflow damage.

## Overview

The 4" PVC Backwater Valve by Cinsda is a robust, corrosion-resistant valve designed to prevent sewage backflow in 4-inch PVC drainage systems. Featuring solvent-weld connections and EPDM rubber seals, it guarantees 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.

## Features

- Designed for connecting 4-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 |
|---------------|-------|
| Material | Polyvinyl Chloride |
| Brand | Cinsda |
| Item dimensions L x W x H | 9.8 x 7 x 6.78 inches |
| Exterior Finish | PVC |
| Inlet Connection Size | 4 Inches |
| Inlet Connection Type | Solvent |
| Outlet Connection Type | Socket Coupling |
| Outlet Connection Size | 4 Inches |
| Manufacturer | Cinsda |
| Part Number | 4IBVBD |
| Item Weight | 3.69 pounds |
| Product Dimensions | 9.8 x 7 x 6.78 inches |
| Item model number | 4IBVBD |
| Size | 4 Inch |
| Color | White |
| Included Components | 4" Backwater Valve |
| Batteries Required? | No |

## Product Details

- **Material:** Polyvinyl Chloride
- **Brand:** Cinsda
- **Item dimensions L x W x H:** 9.8 x 7 x 6.78 inches
- **Exterior Finish:** PVC
- **Inlet Connection Size:** 4 Inches
- **Inlet Connection Type:** Solvent
- **Outlet Connection Type:** Socket Coupling
- **Outlet Connection Size:** 4 Inches
- **Manufacturer:** Cinsda

## Images

![4" PVC Backwater Valve, 4 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow - Image 1](https://m.media-amazon.com/images/I/61VNt5B7hVL.jpg)

## Available Options

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

## Customer Reviews

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

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

### ⭐⭐⭐⭐⭐ Works great
*by D***M on August 12, 2025*

Just what I needed, no more foul odor.

### ⭐⭐⭐⭐⭐ Tramp
*by S***A on April 1, 2025*

La puse porque entraban ratones desde la ciudad , y nunca más volvieron si funciona . La recomiendo.

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**Shop now:** [https://www.desertcart.nl/products/639886006-4-pvc-backwater-valve-4-inch-back-flow-preventer-valve](https://www.desertcart.nl/products/639886006-4-pvc-backwater-valve-4-inch-back-flow-preventer-valve)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-25*