Festo AG & Co. KG

3968922
Pinch valve
VZQA-C-M22U-25-GG-V4V4E-4
Pneumatically actuated pinch valve in stainless steel, safety position open, G thread, DN25.

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Festo Data sheet

CriterionFeature
Design structurePneumatically actuated pinch valve
Type of actuationpneumatic
Sealing principlesoft
Assembly positionAny
Mounting typeLine installation
Process valve connectionG1
Nominal diameter DN25
Valve function2/2 open, monostable
Flow directionreversible
Pressure of medium0 - 0,4 MPa
Medium pressure0 - 4 bar
Pressure of medium psi0 - 58 psi
Operating pressure MPa0,1 - 0,65 MPa
Operating pressure1 - 6,5 bar
Operating pressure14,5 - 94,25 psi
Nominal pressure of process valve10
Differential pressure (MPa)0,25 MPa
Differential pressure2,5 bar
Differential pressure (psi)36,25 psi
Burst pressure1,6 MPa
Bursting pressure16 bar
Burst pressure232 psi
Overload pressure0,78 MPa
Overload pressure7,8 bar
Overload pressure (psi)113,1 psi
Type of resetRebound resilience
Type of pilotingWith external control
Auxiliary pilot air port 12G1/8
Pilot mediumCompressed air to ISO 8573-1:2010 [7:4:1]
MediumCompressed air to ISO 8573-1:2010 [-:-:1]
Water
Max. viscosity4000 mm2/s
Medium temperature-5 - 100 °C
Ambient temperature-5 - 60 °C
Storage temperature6 - 8 °C
Flow rate Kv18 m3/h
Switching time on250 ms
Switching time off250 ms
Materials noteContains PWIS substances
Conforms to RoHS
Material housingHigh alloy steel, non-corrosive
Material number for housing1.4404
Material housing coverHigh alloy steel, non-corrosive
Material sealsFPM
Material shut-off elementEPDM
Product weight1178 g
Food-safeSee Supplementary material information
Material bowlPA6

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