The Vortex Valve is an exceptional solution to engineers looking to
precisely control the discharge flow rate from stormwater drainage,
detention, and infiltration systems. The Contech Vortex Valve control
flows by hydraulic effect without requiring moving parts.
The design of the Vortex Valve produces a unique head / discharge
relationship. The device self-activates by utilizing the upstream
hydraulic head. The unit consists of an intake, a volute, and an
outlet. Flow is directed tangentially into the volute to form a vortex
that reduces the design peak discharge flow rate from the vortex valve
far below an equivalent diameter simple orifice.
During low flow conditions, water entering through the inlet of the
Vortex Valve passes through the volute section of the valve with
negligible pressure drop. During high flow conditions, a vortex flow
pattern develops within the device creating an air filled core. This
phenomenon restricts and throttles the flow through the device,
creating a back pressure in the device immediately upstream of its
discharge.
During high flow rates, a Vortex Valve with a relatively large
outlet opening performs similarly to a conventional orifice with a much
smaller outlet opening; however, debris that might clog a smaller
orifice is able to pass through the Vortex Valve because of the
relatively larger flow path opening.
Vortex Valve Benefits
- Precise flow control
- No moving parts or power requirements
- Self-activating
- Stainless steel construction ensures durability
- Anti-clogging design significantly reduces clogging and maintenance
- Integral by-pass door allows access for cleaning
- Flexible design fits multiple applications
- Laboratory verified stage discharge curves provide predictable results
- Manufactured from corrosion resistant stainless steel construction