The AirTAC GFR30008LF1TK AirTAC Filter Regulator NPT1/4 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 PT1/4" 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 GFR30008LF1TK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body, fitted with 1/4 in NPT ports. This configuration carries the standard 40 um filter element, a differential-pressure drain on the polycarbonate bowl, and the low-pressure regulator type. A square pressure gauge scaled in MPa is embedded, a reverse (check) valve is fitted, 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 available in sizes 200, 300, 400 and 600, with port sizes from 1/8 in to 1 in and PT, G or NPT threads, with manual, automatic or differential-pressure drains, 40 um or 5 um (W) filtration, gauge and scale choices, and standard or low-pressure regulator types. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet numbers against your application.
| Model | GFR30008LF1TK AirTAC Filter Regulator NPT1/4 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (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. |
|---|---|
| 08 | Port size PT1/4". 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 · PT1/4" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-08 (two-unit set) |
Feeds filtered, regulated air to the clamping cylinders on a pneumatic press station. The filter element strips water and swarf carried in shop air before it reaches the valve stack, while the regulator holds a steady setting so clamping force stays repeatable cycle after cycle. The check valve holds the downstream circuit if supply pressure dips.
Mounted at the air inlet of a cartoning or wrapping machine, this unit conditions the supply feeding the machine's directional valves and actuators. The differential-pressure drain bleeds collected condensate from the bowl as the machine runs, and the embedded MPa gauge gives operators a visible setpoint check during changeover.
Supplies cleaned, regulated air to the vacuum generator and gripper cylinders on a robotic pick-and-place cell. The low-pressure regulator type suits circuits that work at modest setpoints, the 40 um element protects the gripper valves from particulate, and the included bracket fixes the unit to the cell's prep panel.
Size and port step up together: 200, 300, 400 and 600 carry progressively larger ports (1/8 in through 1 in) and higher flow capacity, so choose the size whose published curve covers your air demand - we can confirm the curves on request before you order. Drain choice applies where a bowl is present: this unit uses the differential-pressure drain (default); automatic (A) and manual (M) drains are order options. Filtration here is the standard 40 um element; specify W for the 5 um grade. The gauge on this model is the embedded square type scaled in MPa; psi or bar scales and an external round gauge are alternatives. Thread is NPT on this unit; PT is the standard and G (BSPP) is also available to order. A mounting bracket is included unless the J (no bracket) option is specified.
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 GFR300 series as curves, not as a single rated number, so we do not quote a l/min or SCFM figure. Send us your air demand and line pressure and we will confirm the flow figures from the datasheet against your application before you order.
L marks the low-pressure regulator type; the exact regulation range for the low-pressure type is not published, so ask us to confirm it on request. The drain on this unit is the differential-pressure type (the default): it bleeds condensate from the bowl automatically as pressure differential builds, with no daily manual draining. Automatic (A) and manual (M) drains are available as order options.
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.