The AirTAC GFR30010LF1TK AirTAC Filter Regulator 3/8in NPT 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 differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR30010LF1TK is an AirTAC GFR300 filter regulator: filtration and pressure regulation combined in a single body, sized for 3/8 in ports with NPT threads. This configuration is the low-pressure type (code L), fitted with a square MPa gauge, a reverse/check valve (code K), and the standard 40 um filter element. Water and particulate are collected in the polycarbonate bowl, which uses the default differential-pressure drain, and a mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600, with port options from 1/8 in to 1 in, G, NPT or PT threads, automatic, manual or differential-pressure drains, an optional 5 um element (code W), and gauge scale choices. Flow for this series is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR30010LF1TK AirTAC Filter Regulator 3/8in NPT Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, MPa scale |
| Reflux valve | Fitted (reverse flow permitted) |
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". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 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. |
| K | Reverse-flow (reflux) valve fitted. |
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) |
Filtered, low-pressure regulated air to the clamping cylinders on a CNC fixture, where the workpiece calls for a gentler hold than a standard regulator setting delivers.
Conditioned air for the low-pressure actuation circuit that closes and releases the sealing jaws on a packaging line, with the check valve holding the set pressure against backflow.
Regulated supply to the air cylinders that push products between conveyor lanes, keeping the gate cylinders filtered and at a stable low pressure shift after shift.
Choose the GFR300 size step when your line runs 3/8 in ports; larger sizes (400, 600) carry more flow, smaller sizes (200) suit compact drops. This unit is the low-pressure type, so select it where the circuit works below standard regulator settings - ask us to confirm the exact adjustment range before ordering. The 40 um element is standard; specify the W code if your valves need 5 um filtration. Drain is the default differential-pressure type here; automatic (A) and manual (M) versions exist if your installation needs them. The square gauge reads in MPa; psi and bar scales are alternatives. Thread is NPT on this code, with G (BSPP) and PT available as order options, and the bracket is included.
Because AirTAC publishes flow for this family only as curves, not as a single rated number, send us your application details and we will confirm sizing against the datasheet before you order.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as curves, not as a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the flow and datasheet figures for this 3/8 in low-pressure filter regulator on request before you order.
L marks the low-pressure regulator type, intended for circuits that run below standard regulator settings. K means a reverse/check valve is fitted, which holds the downstream setting against backflow. This unit also carries the standard 40 um filter element, a differential-pressure drain, a square MPa gauge, and a mounting bracket.
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.