Parker Legris 7110 21 21 Unidirectional Flow Regulator

Description

This Parker Legris 7110 21 21 is an elbow-type unidirectional flow regulator, also known as a throttle check valve. It is engineered to provide precise speed control for pneumatic actuators by regulating the flow of compressed air in one direction while allowing free flow in the opposite direction. Its compact design features a simple knurled screw for adjustment and a secure push-in fitting for fast, tool-free installation of pneumatic tubing.

Specifications

• Manufacturer: Parker Legris
• Part Number: 7110 21 21
• Type: Unidirectional Flow Regulator (Elbow)
• Thread Connection (Port 1): R 1/2 Male BSPP
• Tube Connection (Port 2): Push-in fitting for 12 mm OD tube
• Body Material: Nickel-plated Brass
• Maximum Operating Pressure: 10 bar (1 MPa)
• Ambient Temperature Range: 0 deg C to +70 deg C
• Fluid: Compressed Air

Label Info

• Brand: Parker Legris connectic
• Model: 7110 21 21

Application

Ideal for controlling the piston speed of pneumatic cylinders in industrial automation, packaging machinery, robotics, and material handling systems. The elbow design is perfect for installations with space constraints.

Country of Origin

This product is typically manufactured in France.

CO2 Impact

By purchasing this reused component instead of a new one, you are contributing to a circular economy and have avoided approximately 0.6 kg of CO2 emissions associated with new production.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

The integrated check valve allows for unrestricted airflow in one direction (typically the retraction stroke of a cylinder) while forcing the air to pass through the adjustable needle valve in the opposite direction. This enables precise speed control for the cylinder's working stroke without affecting its return speed.

The 12mm push-in fitting is designed for use with semi-rigid or flexible pneumatic tubing with a 12mm outside diameter (OD). Compatible materials include Polyamide (PA), Polyurethane (PU), and Fluoropolymer (FEP), ensuring a secure and leak-free connection.

Yes, the Parker Legris 7110 series is rated for vacuum applications down to -0.99 bar (-99 kPa). Its robust sealing design ensures reliable performance in both positive pressure and negative pressure (vacuum) circuits.

Last Update: Friday, March 13, 2026

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