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.
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
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.
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.
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.