Model KRK-R-OH 100-500 - Flap Valves
From Flap Valves
The correct flapvalve can be easily calculated by using an advanced calculation program. Dynamic preconditions play a decisive role, in particular in relation to certain applications as well as static conditions. KWT advises and supplies the correct flapvalve for all applications, regardless of whether they are being used in tidal, pumped or gravitational outflow applications. All our products are carefully calculated regarding strength and are produced using only pure, high-quality materials.
A flapvalve consists mainly of a plate that is hinged on the top side, connected to a mounting frame. It therefore forms an on-seated seal on the front of the culvert/pipe. Water discharging from the pipe opens the flap, however when the head increases on the downstream side, the flap is pressed against it's seal, preventing backflow. KWT flapvalves require only a small head in the pipe to open
the flap, as HDPE floats in water- the flapvalves are fitted with a counterweight to balance the flap correctly.
The flapvalve are light weight, easy to install and very responsive and reliable. The valves are available in various forms, such as the vertically hung flat wall mounted type, as well as pipe mounted, flange mounted and angled wall mounted (mounted on a 15° backward angle to reduce the effect of waves and ensure a good seal).
On-seat pressure is standard 5 MwC; higher pressures on request. epartment for more information or advice.
KWT Flapvalve type: KRK-R-OH 100-500
KWT valves are very varied and are used in connection to
surface, sewer and process water systems.