What do customers want in a Filter Regulator Lubricator (FRL) today? One study by Norgren provides some interesting results. Customers want high quality, outstanding performance, a smaller footprint, ease of assembly and configuration flexibility. Not surprisingly, they were not willing to sacrifice delivery to get these attributes. Perhaps the need for a variety of design options is part of configuration flexibility. If not, it represents a need at least one other supplier has identified. All the products featured in this section appear to address these requirements in one way or another.
Norgren’s Excelon Pro FLR was designed to meet customer-identified requirements. Incorporating push-in fittings, the FLR can be assembled without tools and provides an outstanding flow-to-size ratio. For models with 5 µm element, relieving diaphragm and 5 to 150 psig (0.3 to 10 bar) outlet pressure adjustment range, a 1/4–inch PTF has a flow of 35 scfm and 3/8-inch unit has 21 scfm. With a footprint of 9.14 inch (232 mm) x 2.95 inch (75 mm) the all-composite FRL can handle a maximum pressure of 175 psig (12 bar). With a built-in wall mounting, the FRLs are available in the most widely used sizes and options including 10 different base units and 19 porting options, as well as PTF, ISO R, ISO G, metric or imperial push-in fittings.
To address a variety of air preparation applications, Bimba Mfg. offers standard Filter, Regulator and Lubricators (FRLs) in three different sizes: Miniature 1/8 inch, 1/4-inch NPT, Compact 1/4 inch, 3/8 inch, 1/2-inch NPT and Large 1 inch, 1-1/2-inch NPT. Both automatic and manual drain assemblies are available for the filter. The regulated output pressure is set by turning a knob on the top of the regulator portion. In the lubricator section, oil is atomized into a mist though the nozzle passage and mixed with pressured air creating an ultrafine mist at constant density. In addition to providing custom assemblies for specific needs, optional accessories for standard products include porting blocks, shut-off valves, gauges and more.
Humphrey Products’ compact FR Series Filters, Regulators and Filter/Regulators have a diaphragm for good regulating performance and an engineered polymer body that meets non-grease specifications. A specially supplied mounting bracket or bolt mounting holes on the front of the body make the units easy to mount. Two air filter designs are offered. The FN 100 can handle both pressure and vacuum applications. Designed for both vacuum and vacuum breaking applications, the VFN 100 is installed just before vacuum pads or other components. Operating at pressures that range from -14.5 (vacuum) to 145 psig, both units filter to 5 µm. The regulators have a pressure range option of either 0.7 or 0.25 MPa and are available in side piping and bottom piping (for panel mounting). The integral filter/regulator unit has a choice of the two pressure ranges and relief or non-relief options but is only available in side piping.