Xq170600 G1/4 Quick Exhaust Valve Pneumatic Rapid Exhaust Valve for Cylinder Speed Control

Product Description

 

QE / XQ Series Quick Exhaust Valve

Product Overview

The WAAL QE and XQ series are 3-port (3/2 way) quick exhaust valves designed for rapid exhaust of pneumatic cylinders. By allowing cylinder exhaust air to escape directly to atmosphere without passing through the directional control valve, these valves significantly reduce back pressure and increase cylinder speed.

Installed as close as possible to the cylinder port, quick exhaust valves are essential components for high-speed automation applications requiring fast cylinder response.

Working Principle

When compressed air is supplied to the inlet port (P), the valve allows air to flow to the cylinder port (A). When the inlet pressure is released, the spring-loaded diaphragm or piston opens the cylinder port directly to the exhaust port (T), allowing rapid venting to atmosphere. This bypasses the directional control valve and eliminates flow restrictions in the return path, increasing cylinder speed by 30-50%.

Key Features

• 3/2 way quick exhaust design - direct exhaust without passing through directional valve

• Increased cylinder speed - eliminates back pressure and flow restrictions

• Compact and lightweight - aluminum alloy body for easy installation

• Sensitive response - spring-return diaphragm/piston for reliable switching

• Easy installation - mount directly on cylinder port or close to cylinder

• Wide pressure range - 0-0.8MPa to 0-1.0MPa

• Multiple port sizes - G1/8 to G1/2 (QE) and G1/8 to G1 (XQ)

• Lubrication-free - no oil required, reducing maintenance

• Long service life - up to 2 million cycles

Technical Specifications

 

 

Parameter	QE Series	XQ Series
Working Medium	Compressed Air	Compressed Air
Operating Pressure	0-1.0MPa	0.12-1.0MPa
Operating Temperature	0-60°C	0-70°C
Body Material	Aluminum Alloy	Aluminum Alloy
Seal Material	NBR	NBR
Lubrication	Not required	Not required
Service Life	Up to 2 million cycles	Up to 2 million cycles

QE Series Models

 

 

Model	Port Size	Effective Area
QE-01	G1/8	16mm²
QE-02	G1/4	27.5mm²
QE-03	G3/8	28mm²
QE-04	G1/2	71mm²
QE-06	G3/4	72mm²

XQ Series Models

 

 

Model	Port Size	Flow Capacity
XQ170600	G1/4	≥0.9m³/min
XQ171000	G3/8	≥2.5m³/min
XQ171500	G1/2	≥4.5m³/min
XQ171200	G3/4	-
XQ172500	G1	-

Applications

• High-speed pneumatic cylinder applications

• Packaging machinery and material handling

• Pick-and-place and assembly systems

• Clamping and fixturing equipment

• Textile machinery

• Automation production lines

• Any application requiring fast cylinder response

Why Choose WAAL Quick Exhaust Valves?

• Complete range covering QE and XQ series

• Significantly increases cylinder speed (30-50% improvement)

• Compatible with major brands

• Competitive pricing with factory direct quality

• OEM/ODM service available

• Flexible MOQ, samples accepted