Marsh Bellofram Filter-Regulator-Lubricators (FRLs) are designed with economy and convenience in mind. Filter Regulators have the same features as the regulators with the addition of polycarbonate bowls, 5 or 50 micron filters, and with manual, semi-automatic or automatic drains. Lubricators feature polycarbonate bowls, with field- settable dials providing variable lubrication between 0 and 90 drips per minute.
FRL’s are designed with economy and convenience in mind. Units are available in 0-30, 0-60, and 0-120 psi output pressure ranges and 3/8″, 1/2″, 3/4″ and 1″ NPT pipe sizes with a maximum supply pressure of 145 psi.