The AirTAC GFR30015LC1WT AirTAC Filter Regulator NPT1/2, 5 um is a genuine G-series filter regulator: water separation, 5 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 AirTAC GFR300 series combines water-and-particulate filtration with pressure regulation in a single body, so one 1/2 in (NPT1/2) connection handles both jobs in your compressed-air line. This GFR30015LC1WT is the low-pressure type, fitted with the 5 um filter element (code W), a differential-pressure drain on the PC bowl, a round external gauge with MPa scale, and a mounting bracket. Max 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 offered in sizes 200, 300, 400 and 600, with port options, drain types (differential-pressure, automatic or manual), 40 um standard or 5 um filtration, gauge styles and scales, and G/NPT thread variants to order. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR30015LC1WT AirTAC Filter Regulator NPT1/2, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 5 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, MPa scale |
| 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. |
|---|---|
| 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. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
On a cartoning or wrapping line, this filter regulator cleans the supply air to 5 um and holds a steady low-pressure setting to the machine's pneumatic cylinders and valves, with the MPa gauge giving the operator a clear setpoint reference.
For lab benches, sample-handling rigs or coating processes that run air at reduced pressure, the low-pressure type regulator gives finer control in the lower band while the 5 um element protects sensitive instruments from water and particulate carryover.
On an assembly fixture with air-operated clamps, this unit filters the shop air and regulates the clamp circuit pressure from one 1/2 in connection; the differential-pressure drain bleeds collected condensate as the element loads, and the bracket secures the unit to the panel.
Size and port step: GFR300 with a 1/2 in NPT port suits lines where the required flow sits in the 300-size band; step up to 400 or 600 for higher demand, down to 200 for compact lines. This unit is the low-pressure type, so if your circuit regulates below the standard band, confirm the exact range with us - it is not published as a single figure. The 5 um element (code W) is the finer choice over the 40 um standard when downstream equipment needs cleaner air. Drain here is differential-pressure; automatic (A) or manual (M) drains are alternative order codes. The round gauge is MPa-scaled (scale 1); psi (2) and bar (3) scales and the embedded square gauge are the other gauge choices. Thread is NPT on this code; PT is the standard and G (BSPP) is also an order option. Bracket included.
Flow is published as curves, not a single rated number, so 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. 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 series as curves, not as a single rated figure, so we do not quote a rated l/min, m3/h or SCFM number. Send us your line pressure, downstream demand and acceptable pressure drop, and we will confirm the sizing from the datasheet curves on request before you order.
The L in the code marks this as the low-pressure regulator type, intended for circuits regulated below the standard band; the exact range for the low-pressure version is not published as a single figure, so confirm it with us against your setpoint. The drain is differential-pressure: condensate collected in the PC bowl is discharged automatically as the pressure differential across the 5 um element builds. Automatic (A) and manual (M) drains are available on other order codes.
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.