The AirTAC GFR30015LC2TK AirTAC Filter Regulator NPT1/2 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 PT1/2" 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 GFR30015LC2TK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation in a single body. This configuration is built for a 1/2 in NPT port, carries the standard 40 um filter element, and drains condensate by differential pressure, so the bowl empties as the pressure differential across the element builds - no drain line to plumb and no manual draining routine. It is the low-pressure type, suited to circuits that run below standard regulator settings, and it ships with a round psi gauge fitted so the downstream setting can be read directly. A reverse/check valve is fitted and a mounting bracket is included.
This is a genuine AirTAC part from the GFR300 series. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, thread options PT (standard), G and NPT, drain choices of differential-pressure, automatic or manual, and 40 um or 5 um (code W) filter grades. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR30015LC2TK AirTAC Filter Regulator NPT1/2 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (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 — round, psi 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. |
|---|---|
| 15 | Port size PT1/2". 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). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 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 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
On a fixture line where clamp cylinders must hold at a reduced, stable pressure below standard regulator settings, this low-pressure type filter regulator filters the shop air and holds the clamp circuit at its set point, with the psi gauge giving the operator a direct read.
At the air drop feeding a cartoning or wrapping machine's valve manifold, the unit strips water and 40 um particulate before the valves, regulates the supply to the machine's set pressure, and the differential-pressure drain keeps the bowl clear without a drain line.
On a machining cell where the tool changer and clamping actuators need clean, regulated air at a modest pressure, this 1/2 in NPT filter regulator conditions the supply at the cell, the reverse/check valve holds the circuit if upstream pressure dips, and the included bracket fixes the unit to the frame.
Start with the port and size step: this unit is a size 300 with a 1/2 in NPT port; larger sizes carry larger ports and more flow, so step up if your line demand outgrows the 300 frame. Choose the drain to match the installation: differential-pressure (as fitted here) suits continuous operation without a drain line, automatic drains unattended bowls, and manual suits intermittent duty. Pick the filter grade for the downstream hardware: 40 um is standard for general circuits, 5 um (code W) protects finer pneumatic components. Gauge scale is selectable as MPa, psi or bar - this unit carries a round psi gauge. Thread is PT as standard with G and NPT as order options, and a bracket is included. Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application 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 GFR300 series as curves, not as a single rated figure, so we do not quote one number. Tell us your line demand and operating pressure and we will confirm the sizing from the datasheet on request before you order.
This unit drains by differential pressure: condensate is expelled from the bowl automatically as the pressure drop across the 40 um element builds, with no drain plumbing and no manual routine. If the unit sits in an unattended location or on highly humid air, the automatic drain (code A) is the alternative; manual drain (code M) suits intermittent-duty installations.
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.