




🚧 Protect your lower floors with smart, silent flood defense!
The KARMAT 110mm Horizontal PVC Plastic Sewage Drain Check Non-Return Valve is a robust backwater valve designed to prevent flooding and rodent intrusion in lower floor rooms. Made from durable polypropylene and PVC, it withstands chemical exposure and hot sewage up to 95°C. Certified by CE and WRAS, it installs easily in horizontal sewage pipes, operates automatically without power, and features a smooth interior to prevent sediment buildup, ensuring reliable, long-lasting protection against backflow and stormwater flooding.
| Manufacturer | Karmat |
| Part Number | 450b |
| Package Dimensions | 29.7 x 21.8 x 20.2 cm; 880 g |
| Item model number | 5907484551231 |
| Size | 110 mm |
| Colour | Orange |
| Material | Plastic, Polypropylene (PP), Polyvinyl Chloride (PVC) |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Maximum Pressure | 0.5 Bars |
| Certification | CE, WRAS |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 880 g |
A**R
Karmat one way sewage valve
Very prompt service. Good quality item representing good value for money. I haven't fitted it yet but delighted so far.
M**W
Quality backflow valve
Installed inline with existing drain in its own new inspection chamber. Seems a quality part and very well made.
M**N
Great Product
Does exactly what it's supposed to do!
J**L
2 hand products
Excellent condition
K**B
Looked good quality
It did the job!!
A**R
Three Stars
Good product. Fitted properly.
L**T
Perfect bit of kit
Great bit of kit. Will buy again
G**I
The price of the product is unbeatable, the service impeccable.
I didn't install the valve yet, but if it performs the way I envision, it should be OK.
Trustpilot
1 month ago
2 weeks ago