The brass concealed flush valve is suitable for the flushing control system of urinals or toilets. It is made of corrosion-resistant brass to ensure long-term durability. The valve is concealed inside the wall, with only the push or sensor switch part exposed, which is beautiful and neat while avoiding external pollution. The flush valve can provide manual or automatic sensing styles and is widely used in public health facilities such as shopping malls, airports, and hotels. Chinese faucet factories can provide customized services, including flow adjustment and different installation interface configurations.