T-T Flow Flap Valves for Critical Reservoir Repair

Double Hinge Flap Valve

Back in 2019, a Derbyshire town was faced with a severe flood warning that posed major structural damage and a threat to life. Nearly three years later in 2022, T-T Flow were called upon to supply essential non-return valves to the monumental repair effort with a predicted completion date of late 2024. 

The Problem

A 300-million-gallon reservoir upstream from the town was at risk of bursting due to two consecutive storms and the intense rainfall they brought with them. This led to severe erosion of the reservoir’s auxiliary spillway and prompted fears of a dam breach.

Over 1500 people were evacuated from the town in a huge emergency effort while a stream diversion and pumping works were implemented to drain the reservoir so that repair works could begin. 

The Solution

Our engineers worked to stringent end-user specifications to assemble, configure and function test flap valves within the repair’s schedule.

The supplied resilient seat, double hinge flap valves were chosen for their industry proven design, featuring a maximum seating pressure of 6 meters water column for reliable backflow prevention in high pressure environments.

Consistent sealing performance is further guaranteed by the valves’ durable elastomeric seat, flexible double hinge profile and corrosion-resistant stainless-steel hinge and anti-tamper pins.

Their ductile iron body offers an excellent strength-to-weight ratio, while a robust fusion bonded epoxy coating provides corrosion resistance for uncompromised long-term operation which is essential for the critical nature of the repair works.

The T-T Flow Valves team are proud to have been selected to supply an essential component of the repair job and eagerly anticipate the reservoir reopening to the public.

Search related articles:   TT FlowIssue 96Check Valves