---
product_id: 54649129
title: "PVC Plastic Check Sewage Drain Non-Return Double Flap Valve Backwater Prevented 160mm"
brand: "plumbing4home"
price: "KD 114.66"
currency: KWD
in_stock: true
category: "Plumbing4 Home"
url: https://www.desertcart.com.kw/products/54649129-pvc-plastic-check-sewage-drain-non-return-double-flap-valve
store_origin: KW
region: Kuwait
---

# Rodent-proof guards 160mm pipe fit Double flap security PVC Plastic Check Sewage Drain Non-Return Double Flap Valve Backwater Prevented 160mm

**Brand:** plumbing4home
**Price:** KD 114.66
**Availability:** ✅ In Stock

## Summary

> 🛠️ Secure your space with the ultimate backflow barrier—because flooding and rodents aren’t invited!

## Quick Answers

- **What is this?** PVC Plastic Check Sewage Drain Non-Return Double Flap Valve Backwater Prevented 160mm by plumbing4home
- **How much does it cost?** KD 114.66 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/54649129-pvc-plastic-check-sewage-drain-non-return-double-flap-valve)

## Best For

- plumbing4home enthusiasts

## Why This Product

- Trusted plumbing4home brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual-Flap Defense:** Double flap design ensures maximum backflow prevention and enhanced flood protection.
- • **Self-Cleaning Flow:** Smooth internal surfaces prevent sediment buildup, maintaining optimal sewage flow.
- • **Precision 160mm Fit:** Seamlessly integrates with standard sewage pipes for hassle-free installation.
- • **Durable & Eco-Friendly:** Made from high-quality polypropylene and fiberglass-reinforced parts for long-lasting, chemical-resistant performance.
- • **Rodent-Resistant Shield:** Chromium-nickel guards block rodents from invading your building through sewage lines.

## Overview

The KARMAT 160mm PVC Double Flap Backwater Valve is a robust, rodent-resistant sewage valve designed to prevent backflow flooding in lower floors. Featuring chromium-nickel guards and a self-cleaning, multi-flap design, it ensures uninterrupted sewage flow while blocking stormwater and pests. Constructed from durable polypropylene and fiberglass-reinforced materials, it meets building code requirements and offers reliable, long-term protection.

## Description

KARMAT Backwater Valves (non-return valves) effectively secure any rooms located on the lower floors against flooding caused by back flow of storm water and sewage. Back flow may be caused by intense rains, thaw or floods. Use of anti-flooding devices for rooms located on the lower floors is required by obligatory regulations related to technical conditions that are to be satisfied by building codes. Karmat backwater valves are devices in which the flaps are equipped with chromium - nickel protecting guards securing the flap and gasket against rats and its sliding down during sewage flow. It is a very important feature in places particularly exposed to rodents’ attempts to pass through. Innovative construction of multi-flap valves enables undisturbed sewage flow while preserving complete and unnarrowed clearance of pipes in which they are installed. Unlike other devices of this type available in the market the Karmat double flap backwater valves there are no inserts installed inside which may disturb or obstruct sewage flow. Double flap backwater valves have smooth internal surfaces suitably profiled which causes its self-cleaning and prevents collection of sediments. Module construction of multi-flap valves enables in special cases, as required by clients, to extend devices with additional, independent flaps which greatly increase buildings safety. Backwater valves are installed in horizontal sewage pipes before they exit a building or sewage drain outside the building before its connection to an external network. They are also installed in inspection chambers made of concrete or plastic. Backwater valves are made of high-quality polypropylene (PP), a very durable and environment-friendly material. Polypropylene is resistant to the effects of aggressive chemicals and hot sewage (up to 95°C). Movable construction elements of valves are made of a material strengthened with fiberglass.

## Features

- Installed in 160mm sewage pipes before they exit a building or sewage drains;
- Prevents against rodents entering building interiors through the sewage and other sanitary systems;
- Secure the lower floors against flooding caused by back flow of storm water and sewage;
- Double-flap backwater valves offer a greater choice of security devices

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00QVHHTXW |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 254,826 in DIY & Tools ( See Top 100 in DIY & Tools ) 520 in Pipes 571 in Drainage |
| Date First Available | 11 Dec. 2014 |
| Item Package Quantity | 1 |
| Item Weight | 4 kg |
| Manufacturer | Karmat |
| Manufacturer reference | 451b |
| Material | Plastic, Polyvinyl Chloride (PVC) |
| Part Number | 451b |

## Product Details

- **Brand:** PLUMBING4HOME
- **Exterior finish:** Plastic
- **Inlet connection type:** Flange
- **Manufacturer:** Karmat
- **Material:** Plastic, Polyvinyl Chloride (PVC)
- **Number of ports:** 2
- **Outlet connection type:** Flange

## Images

![PVC Plastic Check Sewage Drain Non-Return Double Flap Valve Backwater Prevented 160mm - Image 1](https://m.media-amazon.com/images/I/41+KwnFWWbL.jpg)

## Frequently Bought Together

- PVC Plastic Check Sewage Drain Non-Return Double Flap Valve Backwater Prevented 160mm
- Retro Fit 110mm 4 inch Drain Non Return Valve with Stainless Steel Flap
- Buffalo Pest Control Water and Rodent Non Return Valve 110mm / 4 inch

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**Shop now:** [https://www.desertcart.com.kw/products/54649129-pvc-plastic-check-sewage-drain-non-return-double-flap-valve](https://www.desertcart.com.kw/products/54649129-pvc-plastic-check-sewage-drain-non-return-double-flap-valve)

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-02-09*