The Air Line Speed Control / Flow Control Valve is a compact, adjustable valve designed to regulate the flow rate of compressed air in pneumatic systems. Used primarily to control the actuating speed of cylinders or other pneumatic components, it plays a vital role in precision movement control, energy efficiency, and safe automation.

This valve is available in one-way (speed control) or bi-directional (flow control) configurations. The one-way version allows unrestricted airflow in one direction and throttled flow in the opposite, making it ideal for controlling extension or retraction speed of cylinders. The bi-directional version throttles air in both directions, used where balanced control is required.

Constructed from brass, aluminum, or engineering plastics, these valves are designed to withstand harsh industrial environments, while providing accurate adjustment through a needle valve mechanism. The manual knob or screw-type adjuster enables fine-tuning of flow, ensuring smooth cylinder actuation without jerks or excessive speed.

These valves are available with BSP/NPT threads or push-to-connect fittings compatible with PU, nylon, or PTFE tubing, making installation easy and leak-proof. Their compact size, high durability, and ease of use make them ideal for a wide range of applications such as automation lines, pick-and-place units, air tools, rotary actuators, and more.

Key Features of Air Line Speed Control / Flow Control Valve:

⚙️ Precise Flow Regulation

• ✅ Allows fine-tuned control over pneumatic actuator speed

• ✅ Needle valve enables smooth, vibration-free motion

• ✅ Improves process control and operational safety

One-Way or Bi-Directional Flow Options

• ✅ One-way (speed control): free flow in one direction, restricted in the other

• ✅ Bi-directional (flow control): controlled flow in both directions

• ✅ Adaptable for single- or double-acting cylinders

Durable Construction

• ✅ Available in brass, anodized aluminum, or engineering-grade plastic

• ✅ High resistance to wear, corrosion, and environmental factors

• ✅ Built for long service life in industrial use

User-Friendly Adjustments

• ✅ Rotary knob or slotted screw for manual adjustment

• ✅ Lock nut prevents accidental movement after setting

• ✅ Clear markings or tactile feedback on some models

Multiple Mounting and Connection Types

• ✅ Threaded: M5, 1/8", 1/4", 3/8", 1/2", 3/4"

• ✅ Push-in fitting types for PU and nylon tubing

• ✅ Inline, elbow, or panel-mount versions available

Wide Operating Range

• ✅ Working pressure: 0.1 to 10 bar

• ✅ Temperature range: –10°C to +60°C

• ✅ Compatible with air, inert gases, and dry filtered air

Common Applications

• ✅ Speed regulation of pneumatic cylinders

• ✅ Flow balancing in automation lines

• ✅ Rotary actuators, air grippers, pick-and-place units

• ✅ Packaging, printing, assembly, and robotic systems

Why Choose This Valve?

• ✔️ Compact and easy to install in any orientation

• ✔️ Offers precise motion control for efficiency and safety

• ✔️ Supports a wide range of fittings and thread sizes

• ✔️ Ensures repeatable performance over 1 million cycles

• ✔️ Compatible with all standard pneumatic tubing and cylinders