Festo VZQA-C-M22C-15-GG-ALALE-6-E Pinch Valve

Technical Overview

Pneumatically actuated 2/2-way closed monostable pinch valve with G1/2 fitting. Handles 0-6 bar medium pressure, up to 4000 mm2/s viscosity, EPDM shut-off.

Key Features

2/2-way, closed, monostable valve function
G1/2 fitting connection with 15mm nominal width (DN15)
Operating pressure range of 3.5 to 6 bar (50.7 to 87 psi)
Compatible with highly viscous media up to 4000 mm2/s
Wrought aluminum alloy housing with EPDM shut-off element and FPM sealing
Externally controlled with mechanical spring reset
High flow rate (Kv) of 5 m3/h with fast switching times
Tested for vacuum applications up to -0.09 MPa

Technical Specification Matrix

Parameter	Value
Short type code	VZQA
Design	Pinch valve, pneumatically actuated
Valve function	2/2-way, closed, monostable
Fitting connection	G1/2
Nominal width DN	15
Medium pressure	0…0.6 MPa / 0…6 bar / 0…87 psi
Operating pressure	3.500…6.000 bar
Burst pressure	1.6 MPa / 16 bar / 232 psi
Reset method	Mechanical spring
Auxiliary pilot air port 12	M5
Medium	Compressed air (ISO 8573-1:2010), Water
Max. viscosity	4000 mm2/s
Temperature of medium	-5…100 °C
Ambient temperature	-5…60 °C
Flow rate Kv	5 m3/h
Switching time on	150 ms
Switching time off	250 ms
Housing material	Wrought aluminum alloy
Sealing material	FPM
Shut-off element material	EPDM
Product weight	317 g
Physical Weight (kg)	0.32
Dimensions L x W x H (cm)	0 x 0 x 0

Industrial Applications

1. High-Viscosity Fluid Dispensing

Used in liquid dispensing lines to manage the flow of thick, viscous media such as syrups, slurries, or industrial pastes without clogging.

Problem Solved

Standard solenoid valves jam or fail when passing thick fluids. The VZQA pinch valve, with its EPDM shut-off element, reliably handles media viscosities up to 4000 mm2/s.

4000 mm2/s viscosityPinch valveEPDM shut-off elementFluid dispensing

2. Vacuum Handling Systems

Integration into vacuum suction networks to isolate vacuum zones during material handling or pick-and-place automation processes.

Problem Solved

Ensures effective zone isolation in vacuum systems up to -0.09 MPa, preventing pressure loss across the line when not actively gripping.

-0.09 MPa vacuum2/2-way closed monostablePneumatically actuated

3. Industrial Water Treatment Regulation

Automated isolation and release of water in water purification and treatment modules, acting as a robust fail-safe flow controller.

Problem Solved

Provides dependable leak-free shut-off (via mechanical spring) and operates reliably with both water and compressed air in industrial environments.

Mechanical spring resetWater mediumG1/2 fittingWrought aluminum alloy