Stormwater Drainage

Backwater ValvesCast Iron

Prevention of sewage backflow into buildings with swing-check, ball-float, and combined drain types. Multiple connection options including Hub & Spigot and No-Hub.

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Technical Details

Product Specifications

Material
Cast Iron
Types
Swing-Check, Ball-Float
Connections
Hub, No-Hub, Spigot
Series
67500, 67400, etc.
Cover
Bolted options
Application
Backflow prevention

Key Features

Swing-Check Type with Bolted Cover (Series 67500, 67600)
Swing-Check Type with No-Hub Connections (Series 67400)
Terminal Type Swing-Check (Series 67720, 67800)
Ball-Float Type (Series 67100A)
Combined Drain with Swing-Check (Series 67650)
Hub & Spigot connection options
No-Hub connection options
Hub connection options

Common Applications

Below-grade bathrooms
Basements
Commercial buildings
Residential
Floor drains
Laundry drains
Below-grade areas
Multi-story buildings
Hospitals
Schools
Hotels
Office buildings
Questions & Answers

Backwater Valve FAQs

Common questions about Josam Backwater Valves

Josam offers swing-check type with bolted cover, swing-check with no-hub connections, terminal type swing-check, ball-float type, and combined drain with swing-check valves.

Josam backwater valves are available with Hub & Spigot, No-Hub, and Hub Connection options to match various piping systems.

Backwater valves prevent sewage from backing up into buildings during sewer line surcharges, protecting property from sewage damage.

Popular series include 67500/67600 (swing-check with bolted cover), 67400 (no-hub swing-check), 67720/67800 (terminal swing-check), 67100A (ball-float), and 67650 (combined drain).

Need Backflow Protection?

Josam backwater valves provide reliable sewage backflow prevention for commercial and residential applications.

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