Mini Spool Valve

The Spool Valve is based on a balanced spool design to create a fast "ON/OFF" fluid dispensing function that is not affected by material input pressure. The spool action displaces a portion of the material back into the nozzle during shut off. This creates an automatic "suck-back" anti-drip feature. An oil chamber is provided for use above the upper seal to create an additional liquid seal that will prevent moisture from being carried onto the spool. The design facilitates easy maintenance without the need for special tools. The valve is designed to be opened by air pressure and closed by a return spring (single acting). A port is provided so that the valve may be connected for air closing without the spring (double acting).

Typical Applications

Dispense beads of sealant to create form-inplace gaskets | Dispensing small drops of oil into gear box | Applying liquid flux, onto PCBA, during manufacturing process

Specifications

• Fluid Inlet Port: 1/8'' NPT Female
• Fluid Outlet Port: Luer lock male
• Aux Air Inlet Port: 10-32 UNF
• Activation Pressure: 70 psi (4.8 bar) Min
• Max Fluid Pressure: 500 psi (6.9 bar)
• Mounting Port: 1/4'' / 20 UNC-2B
• Viscosity Range: 1-1,000,000 cps
• Wetted Parts: 303 SS, Teflon®, Aluminum, EPR
• Operating Frequency: 500+ cycles/min