Product Description
The Festo VZWF is a 2/2-way force pilot operated (servo-controlled) solenoid valve that uses a diaphragm design to control high flow rates through large nominal diameters while utilizing relatively small solenoids . It is typically applied in closed media circuits, reliably switching media such as water, air, and oil without requiring differential pressure, and closes automatically in the event of a pressure loss .
Key Features & Advantages:
No Differential Pressure Required: The force pilot operates independently, allowing the valve to work from 0 bar upwards, making it ideal for closed circuits where no pressure difference exists .
Large Nominal Diameter/High Flow Rate: Despite its compact solenoid, it handles powerful flows (e.g., 1920 l/min through a 13.5 mm port) .
Direct Start (Force Pilot Control): Operates purely electrically; uses the medium pressure to support the opening, ensuring tight shut-off without a minimum pressure requirement .
Versatile Material Selection: Available in robust Cast Brass (CRC 1) for neutral media or Stainless Steel (CRC 3) for aggressive/corrosive environments .
High Cycling Durability: Designed with a robust soft sealing system (NBR or FPM) ensuring reliable operation even with fluctuating supply pressures .
Technical Specifications:
Brand: Festo
Model Series: VZWF
Product No. (Example): VZWF-B-L-M22C-G14-135-1P4-10 (1492110)
Valve Function: 2/2-way, normally closed (NC), monostable
Actuation Type: Electrical, Force pilot operated
Standard Nominal Flow Rate: 260 – 29,900 l/min (depending on size)
Operating Pressure: 0 bar … 10 bar (max. PN40 fitting)
Medium: Compressed air, inert gases, water, mineral oils, neutral liquids
Medium Temperature: -10 °C … +80 °C
Nominal Width Options: 13.5 mm … 50 mm
Port Sizes (Thread): G1/4, G1/2, G3/4, G1, G2, NPT variants
Electrical Connection: Form A plug to EN 175301-803, 3-pin
Corrosion Resistance Class: CRC 1 (Brass) / CRC 3 (Stainless Steel)
Degree of Protection: IP65
Available Size/Specification Ranges:
G1/4 (13.5 mm NW, 1,920 l/min, 24V/110V/230V), G1/2 (13.5 mm NW, 1,920 l/min, 24V), G3/4 (27.5 mm NW, 8,020 l/min), G1-1/4 (40 mm NW), G2 (50 mm NW, 29,900 l/min)
Ideal For:
Water treatment plants, pipeline construction, closed-circuit cooling systems, petrochemical industry (for neutral agents), pump systems, and general process automation requiring high flow rates without differential pressure .
Why Choose FESTO VZWF?
Choose the VZWF for its high-performance force pilot design that manages large nominal widths and high flow rates despite a compact solenoid footprint, allowing it to switch reliably at 0 bar .
Tags:
#Festo #VZWF #SolenoidValve #2WayValve #ProcessValve #ForcePilot #WaterValve #HighFlow #MalaysiaSupplier
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