---
product_id: 55422644
title: "PVC Plastic Check Flap Valve Self Activating End Drainage Backwater 200mm"
brand: "plumbing4home"
price: "฿20380"
currency: THB
in_stock: true
reviews_count: 3
category: "Plumbing4 Home"
url: https://www.desertcart.co.th/products/55422644-pvc-plastic-check-flap-valve-self-activating-end-drainage-backwater
store_origin: TH
region: Thailand
---

# UV & heat resistant design high-grade PVC + stainless steel 200mm robust valve size PVC Plastic Check Flap Valve Self Activating End Drainage Backwater 200mm

**Brand:** plumbing4home
**Price:** ฿20380
**Availability:** ✅ In Stock

## Summary

> 🚫🌊 Stop floods and pests before they start — the ultimate backwater shield!

## Quick Answers

- **What is this?** PVC Plastic Check Flap Valve Self Activating End Drainage Backwater 200mm by plumbing4home
- **How much does it cost?** ฿20380 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/55422644-pvc-plastic-check-flap-valve-self-activating-end-drainage-backwater)

## 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

- • **Rodent Blockade:** Prevents rodents from invading your building’s plumbing
- • **Weather Warrior:** Built to resist sunlight, high temperatures, and harsh chemicals
- • **Seamless Integration:** Fits 200mm sanitary pipes with secure socket weld and flange connections
- • **Durability Meets Design:** Crafted with premium PVC and stainless steel for long-lasting performance
- • **Flood Defense, Activated:** Self-activating flap valve stops backflow instantly

## Overview

The Karmat PVC Plastic Check Flap Valve is a 200mm self-activating backwater valve designed to prevent flooding and rodent intrusion in lower-level plumbing systems. Made from high-quality PVC and stainless steel, it offers superior resistance to UV rays, heat, and aggressive chemicals, ensuring reliable protection for stormwater and sewage pipes with secure socket weld and flange fittings.

## Description

Flap valves of Karmat are innovative devices protecting rooms on the lower levels against flooding caused by backward flow of storm water and sewage. These devices are fully self-activating. Flap valves effectively protect plumbing systems from rats entering the buildings. Flap valves are installed at the end of sanitary sewage pipes entering collection wells, cesspits or drainage pipes leading storm water to ditches or rivers. Advantages: - high quality polypropylene and stainless steel ending; - sun light/high temperature resistance; - immunity to aggressive chemical compounds

Review: good
Review: Die Klappe erfüllt ihre Anforderung und wirkt Qualitativ gut!

## Features

- Installed at the end of 200mm sanitary sewage pipes leading storm water to ditches or rivers;
- 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;
- High quality PVC Plastic and stainless steel ending, sun light/high temperature resistance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00JVRQPR0 |
| Best Sellers Rank | 181,581 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 1,605 in Pipes |
| Brand | PLUMBING4HOME |
| Customer Reviews | 5.0 5.0 out of 5 stars (6) |
| Exterior Finish | Stainless Steel |
| Inlet Connection Type | Socket Weld |
| Item Weight | 1.1 Kilograms |
| Manufacturer | Karmat |
| Material | Plastic |
| Model Number | 452c |
| Number of Ports | 2 |
| Outlet Connection Size | 200 Millimeters |
| Outlet Connection Type | Flange |
| Size | 200mm |
| Specification Met | ASTM |
| Unit Count | 1.0 count |
| Valve Type | check valve |

## Product Details

- **Brand:** PLUMBING4HOME
- **Exterior finish:** Stainless Steel
- **Inlet connection type:** Socket Weld
- **Manufacturer:** Karmat
- **Material:** Plastic
- **Number of ports:** 2
- **Outlet connection size:** 200 Millimeters
- **Outlet connection type:** Flange
- **Specification met:** ASTM

## Images

![PVC Plastic Check Flap Valve Self Activating End Drainage Backwater 200mm - Image 1](https://m.media-amazon.com/images/I/415JluNuHqL.jpg)
![PVC Plastic Check Flap Valve Self Activating End Drainage Backwater 200mm - Image 2](https://m.media-amazon.com/images/I/81cul9GEuXL.jpg)
![PVC Plastic Check Flap Valve Self Activating End Drainage Backwater 200mm - Image 3](https://m.media-amazon.com/images/I/81MW3kMIsAL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***A on 30 October 2025*

good

### ⭐⭐⭐⭐⭐ Review
*by T***. on 29 May 2025*

Die Klappe erfüllt ihre Anforderung und wirkt Qualitativ gut!

### ⭐⭐⭐⭐⭐ Review
*by K***S on 5 December 2024*

Die Leichtgängikeit der Klappe macht einen guten Eindruck

## Frequently Bought Together

- PVC Plastic Check Flap Valve Self Activating End Drainage Backwater 200mm
- Buffalo Pest Control Water and Rodent Non Return Valve 110mm / 4 inch
- Horizontal PVC Plastic Sewage Drain Check Non-Return Valve Backwater Prevented 160mm

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**Shop now:** [https://www.desertcart.co.th/products/55422644-pvc-plastic-check-flap-valve-self-activating-end-drainage-backwater](https://www.desertcart.co.th/products/55422644-pvc-plastic-check-flap-valve-self-activating-end-drainage-backwater)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-27*