VHB and VHBS Bypass Valves for Feedwater Heaters

In thermal power generation the feedwater heater uses heat transfer from extraction steam to the feedwater pre-heating it, improving the overall plant efficiency. In case of a feedwater heater malfunction, it needs to be isolated using a bypass system to allow maintenance without disrupting the flow of feedwater to the boiler. This system consists of two on/off valves placed upstream and downstream from the feedwater heater, with two separate conduits connecting them. One conduit routes the feedwater through the heater, while the other bypasses it.

• Bodies manufactured by fully machined forgings.
• Two on/off valves.
• Three-way valves.
• Built-in water hydraulic actuation.
• Upstream (VHB) and downstream (VHBS) options.