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View Full Version : Is checkvalve necesary?


stevebez
30-09-2010, 04:59 PM
I have HFS6 with jets installed in off boost vacuum area. Is the HFS6 system "water tight" when off, or is a vacuum check valve needed?

Rgds Steve

Richard L
02-10-2010, 12:07 PM
Hello Steve,

A check valve will help if your jets are wide apart, stopping the siphoning-off effect due inbalance of vacuum betwem the two injectionpoints. The HFS-6 is water tight at the off position. the fluid is shut off by an inline solenoid valve.