Festo GRP-160-PK-4 12961 Precision One-Way Flow Control Valve: Complete Technical Guide

7 Februari 2026

Festo GRP-160-PK-4 12961 Precision One-Way Flow Control Valve

A high-precision pneumatic flow control valve designed for accurate speed regulation in industrial automation applications.

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Product Overview

The Festo GRP-160-PK-4 (Part Number: 12961) is a precision one-way flow control valve that represents the pinnacle of pneumatic control technology. This manually operated throttle valve is engineered for applications requiring precise speed control of pneumatic cylinders and actuators. With its PK-4 pneumatic connections and innovative throttle blowback function, this valve ensures smooth, controlled motion in industrial automation systems.

Key Feature: The GRP-160-PK-4 features a unique throttle blowback function that allows for precise adjustment of airflow in one direction while permitting free flow in the opposite direction, making it ideal for controlling cylinder extension and retraction speeds independently.

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Product Video Demonstration

This video demonstrates the installation and operation of the Festo GRP-160-PK-4 precision flow control valve, showing its smooth adjustment mechanism and practical applications in industrial settings.

Technical Specifications

Parameter	Specification	Description
Part Number	12961	Official Festo product identification
Valve Function	One-way flow control function	Throttle blowback function for precise speed control
Pneumatic Connection Port 1	PK-4	Standard pneumatic fitting interface
Pneumatic Connection Port 2	PK-4	Standard pneumatic fitting interface
Actuation Type	Manual	Manually operated adjustment
Adjustment Component	Rotary Button	Easy-to-use rotary adjustment mechanism
Flow Control Type	Non-return function	Controls flow in one direction only
Operating Pressure	0-10 bar	Standard industrial pneumatic pressure range
Temperature Range	-10°C to +60°C	Suitable for most industrial environments

Key Features and Benefits

Precise Speed Control

Enables accurate adjustment of pneumatic cylinder speeds for smooth, controlled motion in automation applications.

Throttle Blowback Function

Unique design allows controlled flow in one direction while permitting free flow in the opposite direction.

Manual Rotary Adjustment

Easy-to-use rotary button provides fine-tuning capability for precise flow control settings.

PK-4 Standard Connections

Compatible with standard pneumatic fittings for easy integration into existing systems.

For detailed specifications and to purchase this high-quality Festo component, visit our product page.

Industrial Applications

The Festo GRP-160-PK-4 precision flow control valve finds applications across various industrial sectors:

Packaging Machinery: Control of cylinder speeds for precise product handling
Automation Systems: Speed regulation of pneumatic actuators in robotic applications
Material Handling: Controlled movement of conveyor systems and transfer mechanisms
Assembly Lines: Precise positioning and speed control in manufacturing processes
Test Equipment: Controlled motion in testing and measurement applications

Frequently Asked Questions

What is the primary function of the Festo GRP-160-PK-4 valve?

The GRP-160-PK-4 is a precision one-way flow control valve designed to regulate the speed of pneumatic cylinders by controlling airflow in one direction while allowing free flow in the opposite direction.

What type of connections does this valve use?

The valve features PK-4 pneumatic connections on both ports, which are standard industrial pneumatic fittings compatible with most pneumatic systems.

How is the flow rate adjusted on this valve?

Flow rate is adjusted manually using the rotary button, allowing for precise tuning of the airflow to achieve the desired cylinder speed.

What is the "throttle blowback function"?

This unique function allows the valve to control airflow in one direction (typically during cylinder extension) while permitting unrestricted flow in the opposite direction (during cylinder retraction), enabling independent speed control for both movements.

Where can I purchase the Festo GRP-160-PK-4?

You can purchase this precision flow control valve directly from our official product page, where we offer genuine Festo components with full technical support.

Installation and Maintenance

Proper installation and maintenance are crucial for optimal performance of the GRP-160-PK-4 valve:

Installation: Ensure proper alignment of PK-4 connections and use appropriate sealing materials
Initial Setup: Start with the valve fully open and gradually adjust to desired flow rate
Regular Inspection: Check for air leaks and proper adjustment settings periodically
Cleaning: Use clean, dry compressed air to remove any contaminants from the valve
Replacement: Replace the valve if consistent performance degradation is observed

For replacement parts or additional units, visit our product listing.

Trust and Quality Assurance

The Festo GRP-160-PK-4 precision flow control valve is manufactured to the highest quality standards by Festo, a global leader in automation technology. Our commitment to quality includes:

Genuine Festo Components: All products are authentic Festo manufactured parts
Quality Certification: Manufactured under ISO 9001 quality management standards
Technical Support: Comprehensive technical documentation and support available
Warranty Coverage: Standard manufacturer warranty applies to all purchases
Industry Recognition: Trusted by automation professionals worldwide

Professional Recommendation: The Festo GRP-160-PK-4 is the preferred choice for applications requiring precise pneumatic speed control. Its reliable performance and easy adjustment make it ideal for both new installations and replacement applications in industrial automation systems.

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