While any pressure may be used to actuate the valves, we have found that regulating the air pressure at the service station 14 to about 75 to 90 psig is preferred to establish {HEAD ~ precise control} of {TAIL ~ the dispenser apparatus} 
While any pressure may be used to actuate the valves , we have found that regulating the air pressure at the service station 14 to about 75 to 90 psig is preferred to establish { HEAD ~ precise control } of { TAIL ~ the dispenser apparatus }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL