Manufacturer: Okaya Seiritsu Engineering Co., Ltd.
Model: RCV Series

Features

• A ratio control valve is a self-operating valve designed to maintain a constant differential pressure between two fluids.
• This valve operates without an external power source, relying on the pressure difference between the reference side and the following side.
• The fluid pressure applied to the bellows on the reference side counteracts the fluid pressure on the following side.
• The pressure on the following side is maintained at a level that exceeds the reference pressure by an amount set by the spring.
• The valve features an inner valve connected to the bellows.
• When there is a discrepancy between the differential pressures of the reference and following sides and the spring setting pressure, the bellows either expands or contracts.
• This movement causes the inner valve to adjust, regulating the fluid flow on the following side to ensure the pressure remains consistently higher than the reference pressure by the predetermined amount.
• This self-operating control valve utilizes differential pressure for its operation, offering a unique and efficient method of control.
• It is particularly effective in applications like steam and air atomizing burners, used for burning heavy fuel oil in boilers and other equipment.
• The valve plays a crucial role in maintaining optimal combustion conditions by ensuring that the pressure of atomizing steam or air remains slightly higher than that of the heavy fuel oil.

Specification