The AirTAC GFR30010MLNT AirTAC Filter Regulator, NPT3/8, Low-Pressure is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT3/8" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR30010MLNT is a GFR300 filter regulator: one body removes water and particulate from compressed air and holds a regulated downstream pressure. This configuration has 3/8 in NPT ports, a polycarbonate bowl with manual drain, the 40 um standard filter element, and the low-pressure regulator type (L) for circuits that run at lower set pressures - the exact adjustment range is not published, so we confirm it on request. No gauge is fitted (code N) and a mounting bracket is included.
This is a genuine AirTAC part from the G-series air-treatment line, which spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, drain choices, 40 um or 5 um filtration, gauge options and PT, G or NPT threads. Flow is published as curves rather than a single rating, so send us your application and we will confirm sizing and datasheet figures on request.
| Model | GFR30010MLNT AirTAC Filter Regulator, NPT3/8, Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Low-pressure type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Manual drain |
| Bowl material | PC |
| Pressure gauge | Not fitted |
| Reflux valve | Not fitted |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. Air must not freeze in the unit. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| 10 | Port size PT3/8". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| N | No pressure gauge (N). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
Field order is size, port, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR300 · PT3/8" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
On an assembly fixture with air-actuated clamps, this unit strips water and swarf from the shop-air drop and holds a steady, lower set pressure so clamps seat consistently cycle after cycle.
Feeding the pneumatic circuits of a machining centre - tool-change cylinders, chip doors and air-blast nozzles - with filtered, regulated air keeps moisture and grit out of the machine's valves and cylinders.
On a carton-sealing or filling line, a filter regulator at each machine drop gives the packaging cylinders clean air at a stable, reduced pressure, protecting seals and keeping the line's actuation repeatable.
Size and port step up with air demand: 300 sits mid-range in the G-series, and this unit takes the 3/8 in port (code 10) on an NPT thread (T). Drain choice on the GFR300 is differential-pressure (default), automatic (A) or manual (M) - this model has the manual drain, so the bowl is drained by hand. Filtration is the 40 um standard element; order the W variant for 5 um. Gauges are order options (embedded square or external round, with MPa, psi or bar scales) and none is fitted here. PT is the standard thread and G is also available as an order option. Flow is published as curves, not a single rating - ask us to confirm sizing against your application before ordering.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR300 as curves rather than a single rated figure, so we do not quote a number here. Send us your inlet pressure, set pressure and air demand, and we will confirm the flow curve and sizing from the datasheet on request.
Yes. Gauges are an order option on GFR units: an embedded square gauge or an external round gauge, with MPa, psi or bar scales. Order the variant carrying the gauge code you need; on this GFR30010MLNT no gauge is fitted, and the low-pressure regulator type means we confirm the adjustment range on request.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.