and how is it plumbed ?
What does the RCV valve do ?
Re: What does the RCV valve do ?
The regulator control valve (RCV) is mounted on the regulator cover. The RCV is a one way check valve that opens at 8-10“ of water column and permits quick response of the secondary diaphragm during wide open throttle operation.
1994-1998 Medium Duty LPG Service Manual Supplement http://www.qtww.com/wp-content/uploads/ ... lement.pdf
1994-1998 Medium Duty LPG Service Manual Supplement http://www.qtww.com/wp-content/uploads/ ... lement.pdf
Fuel flow requirements calculations
Engine air flow requirement calculation: CFM = Cubic Inches x RPM x Volumetric Efficiency (VE) ÷ 3456
Engine air flow requirement calculation: CFM = Cubic Inches x RPM x Volumetric Efficiency (VE) ÷ 3456
Re: What does the RCV valve do ?
Add to that. It is only used with fuel control systems that use vacuum to control the secondary diaphragm. The standard orifice bleed hole in the fuel control fitting was not large enough to allow rapid response of the secondary diaphragm. The regulator control valve would open if the throttle was floored letting the secondary react quickly. It was spring loaded and the spring pressure was adjustable for different engine sizes to adjust the response. It made sure lean backfires could not occur at WOT.
Re: What does the RCV valve do ?
You answered my next question before I asked it.C3H8 wrote: ↑Fri Mar 22, 2019 5:01 pmAdd to that. It is only used with fuel control systems that use vacuum to control the secondary diaphragm. The standard orifice bleed hole in the fuel control fitting was not large enough to allow rapid response of the secondary diaphragm. The regulator control valve would open if the throttle was floored letting the secondary react quickly. It was spring loaded and the spring pressure was adjustable for different engine sizes to adjust the response. It made sure lean backfires could not occur at WOT.