Hydraulic control equipment, flow control valve, RCV series

A valve that can maintain a constant difference between the variable reference pressure and the controlled fluid pressure.

The differential pressure valve is a control valve that maintains a constant pressure difference between two fluids. It does not have a power source; instead, the pressure of the reference side fluid acting on the bellows counteracts the pressure of the following side fluid, which is designed to be slightly higher than the set spring pressure. The bellows is connected to an internal valve, and when a pressure difference occurs between the reference side fluid and the following side fluid, the bellows expands or contracts, causing the internal valve to move. The internal valve adjusts the flow rate of the following side fluid by changing the valve opening, ensuring that the pressure remains consistently higher than the set pressure. As described above, it is a self-operated control valve that moves based on differential pressure, making it a unique and innovative control valve. In burners that combust heavy oil, such as those used in boilers, an atomizing burner is employed to spray steam or air. By using this device to maintain the atomizing steam or air at a slightly higher pressure than the heavy oil pressure, good combustion conditions can be maintained. 【Features】 - Maintains a constant pressure difference between two fluids - The bellows is connected to an internal valve - The bellows expands or contracts when a difference occurs between the pressure difference and the set pressure - A self-operated control valve that moves based on differential pressure - A unique and innovative control valve *For more details, please refer to the PDF document or feel free to contact us.

Hydraulic Equipment