VL-5-1-8-B Festo Pneumatic Valve

USD 81.00

5/2-way monostable pneumatic valve with G1/8 ports. Features a 750 l/min flow rate, 0-10 bar operating pressure, and a durable poppet seat design.

SKU Festo-31000 Category
Valves and valve terminals > Classic > MFH

VL-5-1/8-B Festo Pneumatic Valve

Model Identifier VL-5-1/8-B
Official Part Number 31000
GTIN Standard 4052568114350

Technical Overview

The Festo VL-5-1/8-B is a high-performance 5/2-way monostable pneumatic valve from the Tiger Valve 2000 series. It features a robust poppet seat design with a 26mm construction width and is pneumatically actuated via an external pilot air supply. Capable of a standard nominal flow rate of 750 l/min, it offers rapid response times of 2ms (on) and 10ms (off). The valve is constructed with a die-cast aluminium housing and NBR/TPE-U seals, ensuring reliable operation within a wide temperature range and suitability for both lubricated and non-lubricated compressed air media.

Key Features

  • 5/2-way monostable valve function
  • Pneumatic actuation with external pilot air
  • Durable poppet seat design
  • Mechanical spring reset mechanism
  • Standard nominal flow rate of 750 l/min
  • Non-reversible flow direction
  • Compact 26mm construction width
  • RoHS-compliant materials
  • Suitable for mounting on PR rail or via through-hole

High-speed switching performance with an activation time of 2 ms and a deactivation time of 10 ms.

Technical Specification Matrix

ParameterValue
Valve function5/2-way, monostable
Type of actuationPneumatic
Construction width26 mm
Standard nominal flow rate (standardised to DIN 1343)750 l/min
pneumatic working portG1/8
Operating pressure MPa0 MPa ... 1 MPa
Operating pressure bar0 bar ... 10 bar
DesignPoppet seat
Type of resetMechanical spring
Nominal size5 mm
Grid dimension27 mm
Exhaust-air functionWith flow control option
Sealing principleSoft
Mounting positionoptional
Manual overrideNone
Type of pilotingDirect
Pilot air supplyExternal
Flow directionNon-reversible
Symbol00991001
lapUnderlap
Pilot pressure MPa0.15 MPa ... 0.8 MPa
Pilot pressure bar1.5 bar ... 8 bar
Max. switching frequency3 Hz
Switching time off10 ms
Switching time on2 ms
Operating mediumCompressed air to ISO 8573-1:2010 [7:4:4]
Note on operating and pilot mediumLubricated operation possible (in which case lubricated operation will always be required)
Corrosion resistance class CRC1 - Low corrosion stress
LABS (PWIS) conformityVDMA24364-B1/B2-L
Storage temperature-40 °C ... 60 °C
Media temperature-10 °C ... 60 °C
Pilot mediumCompressed air to ISO 8573-1:2010 [7:4:4]
Ambient temperature-10 °C ... 60 °C
Product weight170 g
Type of mountingOn PR rail With through-hole
Pilot air port 14G1/8
Pneumatic connection, port 1G1/8
Pneumatic connection, port 2G1/8
Pneumatic connection, port 3G1/8
Pneumatic connection, port 4G1/8
Pneumatic connection, port 5G1/8
Note on materialsRoHS-compliant
Material sealsNBR TPE-U(PU)
Material housingDie-cast aluminium

Industrial Applications

1. High-Speed Defect Ejection in Packaging Conveyor Systems

Utilized to control a double-acting pneumatic cylinder that quickly ejects defective packages from a fast-moving conveyor line. The valve receives a pneumatic pilot signal to actuate the cylinder, instantly pushing the rejected item off the belt.

Problem Solved

Overcomes the challenge of slow response times in mechanical sorting systems by providing near-instantaneous pneumatic actuation, ensuring high-speed throughput without bottlenecking the fast-paced packaging line.

2 ms switching time on5/2-way, monostable750 l/min flow ratePneumatic actuation

2. Fail-Safe Workpiece Clamping in Woodworking Machinery

Integrated into automated assembly jigs to control the pneumatic clamps holding wooden components during CNC routing or drilling. The poppet valve design handles the demanding industrial environment, while the mechanical spring ensures the clamp returns to its default state upon signal removal.

Problem Solved

Addresses the need for reliable clamping in dusty environments where air may contain particulates or lubricants, preventing valve jamming. The mechanical spring reset ensures safe retraction of the clamp if the pilot air signal drops.

Poppet seat designMechanical spring resetLubricated operation possible0 bar ... 10 bar operating pressure

3. Hazardous Area Process Valve Actuation

Employed as a directional control valve to actuate larger double-acting process valves (such as butterfly or ball valves) in chemical processing zones where electrical components are restricted. It relies entirely on external pneumatic pilot signals to switch.

Problem Solved

Eliminates the spark and ignition risks associated with electrical solenoid valves in potentially explosive, wet, or chemically harsh environments by utilizing a purely pneumatic, electrically-isolated control method.

Type of actuation: PneumaticExternal pilot air supplyDie-cast aluminium housingPilot pressure 1.5 bar ... 8 bar

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