Festo HEL Series On/off Valve

2/2-way valve for slowly pressurizing pneumatic systems.

Select your options below…

{{ option.description }}
"{{ option.noLongerAvailable }}" is no longer a valid option. Please choose from the current set of options.
Need help? Call one of our engineers at 1-802-880-3123. We’re open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET.
Request pricing below.
${{ calcCost | formatCurrency }} per {{ calcQuantity }} (${{ unitPrice | formatCurrency }} each) per {{ boxQuantity }} (${{ unitPrice | formatCurrency }} each)
Configured Part Number: {{ calcPartNumber }}
Alternate Part Numbers: {{pn}}
{{pn}}
{{ calcAvailability }}
Learn more about this configuration...
Request Quick Quote
Get Business Financing!
Payments as low as ${{monthlyPayments}}/mo
Highlights...

Features

  • 1000-6500 l/min flow rate
  • 14-140°F temperature range
  • 3-16 bar operating pressure
  • Adjustable switching time delay

The Festo HEL Series On/off Valve is designed to slowly pressurize and vent pneumatic systems, in conjunction with the HE and HEE on/off valves. They are available in three size variants - Mini, Midi, and Maxi - with varying pneumatic connection sizes. The valves feature a piston spool design and can be mounted in any orientation, suitable for use with compressed air or inert gases. The duration of the pressure build-up is set using a restrictor attached to the valve cap, allowing the outlet pressure to rise slowly. The main seat opens when the switch-through pressure is reached, at approximately 50% of the input pressure. This gradual pressure build-up helps drives move slowly and reliably into the initial position, avoiding sudden and erratic movements.