Instant Protection for Busy Sites
The ToggleBlok® Off-Seating Valve is engineered for rapid containment where the flow of pollutants needs to be stopped instantly. Fitted at the inlet or outfall of a drainage chamber, the valve flap clamps tightly shut on activation, blocking contaminants from entering sensitive discharge routes.
This configuration is particularly suited for delivery areas, tanker loading bays or other high-frequency operational zones where quick and repeatable sealing is required.
When selecting an off-seating valve, careful consideration must be given to the expected backpressure. Our team can help you determine the appropriate valve specification for your site to ensure effective sealing and long-term performance.
Why Choose the ToggleBlok® Off-Seating Valve?
- Ideal for high-traffic, frequently activated zones
- Clamps shut on command to prevent pollutant escape
- Fast 5-second closure response
- Works with site monitoring or manual controls
- Configurable for a range of inlet or outfall sizes
On headwall or inlet to chamber
Dimensions
Valve Size | Dimensions | |||||||
|---|---|---|---|---|---|---|---|---|
A | B | C | D | E | F | G | H | |
TBV 150 | 150 | 397 | 270 | 640 | 135 | 114.5 | 336 | R90 |
TBV 225 | 225 | 555 | 425 | 780 | 212.5 | 212.5 | 378 | R130 |
TBV 300 | 300 | 630 | 500 | 950 | 250 | 250 | 450 | R167.5 |
TBV 375 | 375 | 782.5 | 600 | 1093 | 300 | 300 | 532 | R212.5 |
Valve Specification
1. Stainless steel with HDPE flap.
2. Pneumatically operated, mechanically locks when closed.
3. Light weight modular design.
4. Lift eyes on larger valves to assist lowering into chamber.
