HAVER & BOECKER RFU-446-S0 200340647

Univer One-Way Flow Control Valve for Precise Pneumatic Speed Control Description The Univer RFU-446-SO is a high-quality one-way flow control valve, also known as a throttle check valve. It is designed for in-line installation to precisely regulate the speed of pneumatic cylinders and other actuators. By adjusting the knurled screw, you can accurately control the flow rate of compressed air in one direction, while allowing free flow in the reverse direction. This component is essential for optimizing machine cycles and ensuring smooth, controlled motion in automated systems. This specific item is an OEM part originally specified for Haver & Boecker machinery, ensuring it meets high industrial standards. Specifications Manufacturer: Univer Type: RFU-446-SO Haver & Boecker Material No.: 200340647 Function: One-way flow control (throttle check) Pneumatic Connection: G1/8 inch Adjustment: Knurled spindle with lock nut Operating Pressure: 1 to 10 bar Operating Temperature: -20 deg C to +80 deg C Mounting Style: In-line Label Info Brand: HAVER & BOECKER (Original Equipment Manufacturer) Description: one-way restrictor, RFU-446-SO spindle c H&B Order No.: 10188280 H&B Material No.: 200340647 Application This valve is widely used in industrial automation for controlling the extension or retraction speed of pneumatic cylinders. It is suitable for applications in packaging machinery, assembly lines, material handling equipment, and general pneumatic circuits where precise motion control is required. Country of Origin Manufactured by Univer in Italy. CO2 Impact By purchasing this pre-owned but unused component, you are contributing to the circular economy and helping to save approximately 1.0 kg of CO2. This saving is equivalent to the emissions from driving a standard car for 5 kilometers. Availability This item is in stock and ready for immediate dispatch. Order now from profideals for expert support and fast delivery. FAQ What is the function of a one-way flow control valve like the RFU-446-SO?This valve, also known as a throttle check valve, controls the speed of a pneumatic cylinder or motor. It restricts air flow in one direction (controlled flow) to slow down the movement and allows free flow in the opposite direction for a fast return stroke. How do I correctly install this valve for “meter-out” control on a single-acting cylinder?For meter-out control, which is the most common and stable method, you should install the RFU-446-SO on the exhaust port of the cylinder. This means the controlled flow path (from port 2 to 1 according to the symbol) should restrict the air leaving the cylinder, ensuring smooth operation. What is the significance of the “SO” suffix in the type number RFU-446-SO?The “SO” suffix typically indicates a “Sonderausfuehrung” or special version made for a specific Original Equipment Manufacturer (OEM), in this case, Haver & Boecker. While the core function is the same as a standard RFU-446, it might have minor modifications like a specific seal material or a pre-set adjustment range. profideals is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. Last Update: Friday, March 13, 2026