VHS Series Solenoid Valves

General Specifications

The following specifications apply to all VHS Series solenoid valves, unless otherwise noted.

Cycle Life

VHS valves will operate for a minimum of 250 million cycles on water. Flow media and system conditions may affect performance.

Standard VHS valves are designed for operation on liquids. For air or gas operations, contact The Lee Company for special models.

Electrical Characteristics

The VHS valves require a spike and hold signal for proper operation. This will prevent damage to the coil.

Spike and hold drive circuit modules are available (IECX0501350A) for use with VHS valves. Click here for complete starter kit.

Click here for a "typical" spike and hold drive circuit (H-wave) schematic.

There is no polarity associated with the valve pins.

Swipe to the right for more table information

  STANDARD
12 VOLT COIL
STANDARD
24 VOLT COIL
DIRECT DISPENSE
24 VOLT COIL
Resistance (ohms) 10.6 40 110
Inductance: energized (mH) 3.6 16 38
Inductance: de-energized (mH) 2.8 12 20

Operating Pressure

  • Valves are designed to operate within the normal ranges listed.
    Proof Pressure....... 2 x normal operating pressure
    Burst Pressure....... 3 x normal operating pressure
  • Special higher pressure valves can be designed. Contact The Lee Company for specifications.

Operating Temperature

  • Ambient operating temperature range is 40°F -120°F (4°C -49°C)
  • Maximum outside coil temperature not to exceed 150°F (66°C )
  • Increasing the operating temperature tends to limit coil performance. Coil temperature is influenced by current and environmental factors such as self-heating, ambient temperature and heat dissipation (heat sinks, active cooling, fluid flow, etc.)
  • Special high temperature valves are available

Response Time

  • VHS Series valves require a spike and hold drive circuit (H-wave) to operate properly. Failure to reduce the spike voltage will result in damage to the valve. Click here for the schematics of this circuit.

Purging

  • Valves must be free of air (purged) for optimum dispensing performance. This may require a static and/or dynamic purge. Please contact The Lee Company if assistance is needed.

Filtration

System filtration of 12 microns is recommended. In addition, last chance safety screens are available that thread directly into valves with MINSTAC inlet ports. These are last chance screens and are not intended to replace system filters. Improper filtration can result in damage to the valve (leakage) due to contamination of the sealing surface. Refer to MINSTAC Section.