Product Description
The Festo VZA and VZB series are 3/2-way pneumatic time delay valves that generate an infinitely adjustable time delay between a control signal and the resulting switching action, without requiring electrical power . Upon receiving a signal, the valve switches to port 12 after a user-defined delay period . Available in normally closed (VZA, VZB) or normally open (VZOA, VZOB) configurations, these directly controlled poppet valves deliver a flow rate of 600 L/min for reliable pneumatic sequence control .
Key Features & Advantages:
Infinitely Adjustable Delay Time: The primary delay time is continuously variable, allowing precise and repeatable timing adjustment to meet the specific requirements of sequential pneumatic control tasks .
Dual Adjustment Mechanism Options: Available in two versions for application-specific convenience: VZA/VZOA features a double-dial adjusting knob with integrated locking device and printed scale for easy, tool-free adjustment; VZB/VZOB utilizes a simple adjustment screw for applications requiring a tamper-resistant or lower-cost solution .
Normally Closed (NC) and Normally Open (NO) Versions: Available in NC (VZA, VZB) and NO (VZOA, VZOB) configurations, providing flexibility in circuit design for "delay-on-make" or "delay-on-break" applications .
Robust 3/2 Poppet Valve Design: Directly controlled poppet valve with a mechanical spring return ensures reliable, maintenance-free operation across the entire pressure range of 0 to 10 bar .
G1/4 Ports & Front Panel Mounting: Designed with G1/4 female threads for standard connections and a 22.5 mm front panel mount cutout, simplifying integration into operator panels or control cabinets .
Technical Specifications:
Brand: Festo
Model: VZA / VZB
Product No.: VZA-3-1/4 (3434) / VZB-3-1/4
Valve Function: 3/2-way, monostable (NC or NO)
Actuation Type: Pneumatic, piloted timing
Standard Nominal Flow Rate: 600 L/min
Operating Pressure: 0 to 10 bar
Pneumatic Ports: G1/4 female
Panel Mounting Diameter: 22.5 mm
Design: Poppet valve with mechanical spring return
Reset Method: Mechanical spring
Ambient Temperature: -10°C to +60°C
VZA Adjustment: Double-dial adjusting knob with scale and locking device
VZB Adjustment: Adjustment screw
Ideal For:
Sequential control of pneumatic cylinders, time-delayed switching of conveyor belts, controlling filling and emptying cycles of pneumatic tanks, implementing dwell times in automated assembly processes, and preventing machinery damage through controlled delay actions .
Why Choose FESTO VZA / VZB?
Choose the Festo VZA and VZB time delay valves for their purely pneumatic, spark-free timing operation, infinitely adjustable delay times, robust 600 L/min flow rate, and application-specific adjustment mechanisms—delivering reliable, all-pneumatic control for circular timing and sequential processes in Malaysian industrial automation systems.
Tags:
#Festo #VZA #VZB #Time Delay Valve #PneumaticTimer #VZA314 #DelayValve #PneumaticControl #MalaysiaSupplier
Malaysia
