Back Pressure Valve - Lutz-JESCO America Corp. dosing ...
2014-1-29 · A Back Pressure Valve is used for metering pump applications, where suction pressure is greater than the discharge pressure. What happens without it? Without accurate back pressure, a pump may overfeed, thus not achieving its designed accuracy. How does it work? When line pressure increases, a ball or PTFE-coated diaphragm pushes against a pre-set
Get Price