The AirTAC GFR300C15LC2WK AirTAC Filter Regulator PT1/2, 5 um 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 See datasheet 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 GFR300C15LC2WK is a filter regulator: one body that removes water and particulate from compressed air and then regulates downstream pressure. This 300-size unit is fitted with a PT1/2 port, a fine 5 um filter element (the W grade, tighter than the 40 um standard), a differential-pressure drain that bleeds collected condensate automatically whenever the pressure drop across the element is high enough, and a reverse/check valve that holds downstream pressure when the supply is cut. It is the low-pressure (L) regulator variant, and it carries a round external pressure gauge scaled in psi. A mounting bracket is included.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in up to 1 in, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um filtration, square or round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the flow and datasheet figures for your application before ordering.
| Model | GFR300C15LC2WK AirTAC Filter Regulator PT1/2, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard 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 — factory standard, Factory standard 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. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). 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. |
|---|---|
| C1 | Port size See datasheet. 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)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (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. |
| (blank) | PT 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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C1 (two-unit set) |
Feeding clamp cylinders on a CNC fixture line: the 5 um element keeps spool valves clean while the low-pressure regulator holds a gentle, repeatable clamp pressure, and the check valve keeps the clamps from venting if the main supply drops.
Conditioning the air that drives diverters, pushers and stop gates on a packaging conveyor: filtered, regulated air at the head of the drop, with the differential-pressure drain handling condensate through a full shift without manual blowing down.
Supplying atomizing and actuation air in a paint shop booth, where the low-pressure regulator type suits modest set pressures, the 5 um grade protects fine air passages, and the psi-scaled gauge lets operators check the setting at a glance.
Start with the port: this unit is PT1/2, so match it to the air line it sits in and step up or down a size (200/300/400/600) according to the flow your line needs. Choose the drain: differential-pressure (as fitted here) drains only when the element loads up, automatic drains continuously, and manual requires someone to open the drain - pick the one your maintenance routine can support. Choose the element: 40 um is the standard grade for general air prep; this unit carries the 5 um W grade for finer protection of downstream valves and cylinders. Gauges can be the embedded square type or an external round gauge, scaled in MPa, psi or bar - this configuration has a round psi gauge. Threads are PT as standard, with G and NPT available as order options, and a bracket is included.
Two honest notes before you order. First, this is the low-pressure (L) regulator type; its exact regulation range is not published as a single figure here, so confirm it with us against your set pressure. Second, flow is published as curves, not a single rated number - send us your application details and we will confirm sizing from the datasheet before you commit.
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 GFR series as curves, not as a single rated number, so we do not quote a l/min, m3/h or SCFM figure for this unit. Tell us your line pressure, set pressure and the equipment it feeds, and we will confirm the sizing from the datasheet before you order.
The L code marks the low-pressure regulator variant, intended for applications set well below standard line pressure. Its exact regulation range is not published as a single figure here, so send us your target set pressure and we will confirm from the datasheet that this variant covers it. If you need the full standard range instead, the non-L GFR300 configuration is the one to ask about.
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.