Yuken KC Series Flow Control Valve | KC-02 KC-03 KC-04 KC-06 | One-way Throttle Valve

KC Series Industrial Inline One-way Throttle Flow Control Valves

Product Overview: The KC Series One-way Throttle Valve is a vital component for controlling the movement speed of hydraulic actuators, such as cylinders or motors. Designed with an inline threaded (Tube Type) architecture, this valve can be installed directly into the piping system. It functions by throttling flow in one direction via a needle adjustment while allowing free flow in the opposite direction through an integrated check valve, enabling precise “meter-in” or “meter-out” control.

This series features a complete range from KC-02 (1/4″) to KC-06 (3/4″), widely used in automated production lines, woodworking machinery, food packaging machines, and compact hydraulic power units.

Key Technical Advantages:

• Precision Flow Fine-tuning: Equipped with a fine-thread adjustment stem, allowing for micro-adjustments of hydraulic flow to ensure smooth, shock-free operation.

• Inline Threaded Architecture: Eliminates the need for subplate mounting, saving space and reducing plumbing costs—ideal for compact hydraulic circuit layouts.

• High-Reliability Check Function: The integrated high-performance poppet ensures minimal pressure drop during free reverse flow, enhancing overall system efficiency.

• Heavy-Duty Design: Constructed from high-grade carbon steel or alloy, rated for operating pressures up to 21 MPa, ensuring an extended service life.

Detailed Specifications & Parameters:

• Core Series: KC Series One-way Throttle Flow Control Valves.

• Featured Model Matrix: KC-02, KC-03, KC-04, KC-06, KC-03-3/8, KC-04-3/8.

• Core Performance Specs:

  • Port Sizes: 02 (1/4″), 03 (3/8″), 04 (1/2″), 06 (3/4″) BSPP/NPT.

  • Max Operating Pressure: Rated up to 21 MPa (210 Bar).

  • Flow Capacity: Ranging from 12 L/min to 80 L/min depending on the model size.

  • Sealing: Standard NBR seals, compatible with most mineral hydraulic fluids.