Exhaust-Air Flow Control
The GRLA-1/8-QS-4-RS-D provides one-way exhaust-air flow control for regulating airflow in suitable pneumatic drive applications.
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Festo
FESTO GRLA-1/8-QS-4-RS-D One-Way Flow Control Valve G1/8 QS-4 160L/min
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PRODUCT DOCUMENTATION
Product Information
Technical specifications, features, applications and purchasing information.
Technical Specifications
| Brand | FESTO |
| Model Number | GRLA-1/8-QS-4-RS-D |
| Product Category | One-Way Flow Control Valve |
| Part Number | 197580 |
| Valve Function | Exhaust Air One-Way Flow Control |
| Pneumatic Connection, Port 1 | QS-4 |
| Pneumatic Connection, Port 2 | G1/8 |
| Tube Outside Diameter | 4 mm |
| Adjustment Component | Knurled Screw |
| Type of Mounting | Screw-In |
| Standard Nominal Flow Rate, Flow Control Direction | 160 l/min |
| Standard Nominal Flow Rate, Non-Return Direction | 120-190 l/min |
| Operating Pressure | 0.2-10 bar |
| Operating Medium | Compressed Air to ISO 8573-1:2010 [7:4:4] |
| Mounting Position | Any |
| Nominal Tightening Torque | 3 Nm |
| Product Weight | 23 g |
| Seal Material | NBR |
Key Features
160 l/min Nominal Flow
The documented standard nominal flow rate in the flow-control direction is 160 l/min.
G1/8 and QS-4 Connections
The valve combines a G1/8 threaded pneumatic connection with a QS-4 push-in connection for 4 mm outside-diameter tubing.
Knurled Screw Adjustment
The RS version uses a knurled adjustment screw, providing mechanical adjustment of the restricted airflow.
0.2-10 Bar Operation
The documented operating pressure range across the complete specified temperature range is 0.2 to 10 bar.
Screw-In Installation
The screw-in mounting arrangement supports installation at suitable pneumatic cylinder and drive connections.
Applications
- Pneumatic cylinder speed control
- Exhaust-air flow regulation
- Pneumatic drive motion control
- Industrial automation equipment
- Pneumatic handling systems
- Assembly machinery
- Packaging equipment
- Compressed-air control circuits
Purchase Information
We support online purchase of the FESTO GRLA-1/8-QS-4-RS-D One-Way Flow Control Valve. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.
Frequently Asked Questions
What is FESTO GRLA-1/8-QS-4-RS-D?
It is a one-way flow control valve designed for exhaust-air flow control in suitable pneumatic systems.
What is the FESTO part number?
The part number for GRLA-1/8-QS-4-RS-D is 197580.
What pneumatic connections does the valve use?
Port 1 is QS-4 and port 2 is G1/8.
What tube size is used with QS-4?
The QS-4 push-in connection is intended for pneumatic tubing with a 4 mm outside diameter.
What does RS indicate on this GRLA version?
This version uses a knurled screw as its adjustment component.
What is the standard nominal flow rate?
The standard nominal flow rate in the flow-control direction is 160 l/min, with 120 to 190 l/min documented in the non-return direction.
What is the operating pressure range?
The documented operating pressure range is 0.2 to 10 bar.
What operating medium is specified?
The specified operating medium is compressed air to ISO 8573-1:2010 [7:4:4].
What is the ambient temperature range?
The documented ambient temperature range is -10°C to +60°C.
Can GRLA-1/8-QS-4-RS-D be used for cylinder speed control?
Its exhaust-air one-way flow-control function can be used to regulate airflow for speed control in suitable pneumatic drive applications.
What is the product weight?
The documented product weight is 23 g.
What should be checked before ordering?
Verify the complete GRLA-1/8-QS-4-RS-D model designation, part number 197580, G1/8 and QS-4 connections, required flow rate, operating pressure and the pneumatic requirements of the target system.
Need help confirming a model?
Send us your part number and technical requirements.
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