Tideflex check valves are free draining
Key Benefit: No upstream flooding
24 November, 2017 by
Tideflex check valves are free draining
Geraldine Swanepoel
Odoo CMS - a big picture

Tideflex check valves are manufactured from rubber and have a unique duckbill design. Tideflex valves' elastomer construction offer a unique combination of flexibility, durability and strength. This ensures their maintenance-free operation on outfalls along coasts, on beaches and on river banks. In situations where outfalls will encounter sand & silt, rocks and other debris, and are likely to to be at least partially buried some of the time, Tideflex duckbill valves are the most effective solution, especially in comparison to flap valves.

Key Features

  • Duckbill design - variable opening

  • Rubber construction - flexible, durable & strong

  • Experience - Tideflex Technologies are the original inventor and manufacturer of duckbill style check valves

Key Advantages

  • Self-clearing of debris so eliminate potential blockages

  • Do not warp, freeze or corrode so maintain long-term function

  • Low cracking pressure to eliminate standing water in the upstream system

  • Thirty years of proven field operation, research and development, and continued engineering enhancements

Key Benefits

  • Free draining - no upstream flooding issues

  • No maintenance - saving operational time and money

  • 25+ years service life - long-term capital cost savings

  • Reliable, proven track record - no unpleasant surprises










How Do Tideflex Check Valves Work?

The rubber duckbill check valve is inherently a variable orifice device which changes its effective opening area with respect to the internal pressure and mass flowrate through the unit - i.e. line pressure gradually opens the valve to allow an increasing amount of water to flow out, and back pressure closes the valve with no external energy required. Due to the design of its rubber matrix, the Tideflex check valve has an extremely low cracking pressure.

Odoo - Sample 2 for three columns

This means that the valve is self-draining which eliminates standing water and maximises storage volume (attenuation) in the upstream drainage system. The vulcanised rubber body allows the valve to return to a closed position every time, sealing around any debris that may have become lodged in the valve. This debris will then be washed away as the valve opens again to allow more water to flow out, even at very low flows.
Read the case study here.
Tideflex check valves are free draining
Geraldine Swanepoel 24 November, 2017
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