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Home Product QSTL-G1/4-8-50(FESTO) Pneumatic Throttle Valve, G1/4 Port 8mm Bore 50mm Stroke - FESTO Series
Festo Push-in fitting QSTL-G1/4-8-50

QSTL-G1/4-8-50(FESTO) Pneumatic Throttle Valve, G1/4 Port 8mm Bore 50mm Stroke - FESTO Series

FESTO QSTL-G1/4 valve
G1/4 pneumatic actuator
QSTL series speed controller
QSTL-G1/4-8-50(FESTO)
FESTO QSTL-G1/4 valve with integrated G1/4 pneumatic actuator,part of the QSTL series speed controller line,provides precise flow control for industrial automation. Compact design,adjustable throttling,and durable construction ensure reliable performance in pneumatic systems. Ideal for optimizing actuator speed and motion dynamics.
Categories:Pneumatics Components
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Product Description

The FESTO QSTL-G1/4-8-50 is a compact speed controller from the QSTL series, designed for precise airflow regulation in pneumatic systems. It integrates a G1/4 pneumatic actuator to adjust the speed of linear or rotary drives, offering 1 input and 1 output port for direct connection to modular valve terminals or cylinders. Compatible with standard G1/4 threaded connections, it operates at a pressure range of 0.2–1 MPa and temperatures from -10°C to +60°C, suitable for automation, packaging, and assembly industries. The device enables manual fine-tuning of flow rates up to 50 l/min, featuring a robust aluminum housing for durability. Advantages include easy installation and reliable performance, while lacking digital interfaces limits integration with advanced control systems. Not applicable for battery, screen, or sensing functions.
Parameter Specification
Valve Type FESTO QSTL-G1/4 Speed Control Valve
Actuator Type G1/4 Pneumatic Actuator (Double-acting)
Port Size G1/4 (ISO 228/1)
Operating Pressure 2–10 bar
Flow Rate 0–800 l/min (adjustable)
Temperature Range -10°C to +60°C
Material Anodized Aluminum, Stainless Steel
Speed Control QSTL Series Bidirectional Throttle
Mounting Orientation Any position (vertical/horizontal)
Protection Class IP40
Certification RoHS, CE, ISO 9001
Weight 0.35 kg
Adjustment Mechanism Manual Rotary Knob
Maximum Stroke 50 mm
question:Why are shipping costs so high? Are there more cost-effective options available?
answer:Shipping costs vary based on carrier rates, destination, and package weight/size. We offer multiple carriers; contact us to explore cheaper alternatives.
question:Why are service fees charged?
answer:Service fees cover order processing, payment handling, and documentation. Fees are transparently communicated upfront to ensure clarity.
question:Does your company have a professional product sourcing team?
answer:Yes, we have an experienced sourcing team that analyzes markets, negotiates with suppliers, and ensures quality compliance for optimal product selection.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:Why are shipping costs so high? Are there more cost-effective options available?
answer:Shipping costs vary based on carrier rates, destination, and package weight/size. We offer multiple carriers; contact us to explore cheaper alternatives.
question:Why are service fees charged?
answer:Service fees cover order processing, payment handling, and documentation. Fees are transparently communicated upfront to ensure clarity.
question:Does your company have a professional product sourcing team?
answer:Yes, we have an experienced sourcing team that analyzes markets, negotiates with suppliers, and ensures quality compliance for optimal product selection.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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