System Requirements - NVE 866 Challenger Series Owner's Manual

System Requirements _______________________________________________

High Quality Components
• The 866 Challenger is a high performance vacuum pump and
requires compatible, high quality components as manufactured
by NVE.
Shutoffs
• We recommend the use of our Parts F-802C portal/portal
shutoff, and our Part #F-901-C, 12 gallon scrubber/secondary
shutoff.
Final filter
• We also require the use of a final filter. You can use our
remote mounted filter. (Part #F-1001C)
Hose
• Use 4" or larger hose to pump your system. We recommend
you use a hose that can withstand high temperatures such as
hot tar-asphalt hose.
Pressure relief and vacuum relief valves
• A pressure relief valve and vacuum relief valve should also be
incorporated in the system.
• The pressure relief valve should be set for a maximum of
25 p.s.i. or as allowed by the tank manufacturer if lower.
• The vacuum relief valve should be set for 20" Hg.
• The relief valves should be set to where the pump operates as
a maximum temperature of 350 degrees F.
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