The AirTAC GFR300C15MLJC2W 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 GFR300C15MLJC2W is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This configuration is built with PT1/2 (1/2 in) PT-thread ports, a 5 um filter element (code W, against the 40 um standard), a manual drain on the bowl, and the low-pressure regulator type. It is fitted with an external round gauge scaled in psi, has no reverse/check valve, no mounting bracket, and a metal bowl. 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 spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, drain choices (differential-pressure, automatic or manual), 40 um or 5 um filtration, gauge and thread options (PT standard; G and NPT as order options), and bracket choices. Flow is published as curves rather than a single rating, so we confirm flow and other datasheet figures on request.
| Model | GFR300C15MLJC2W 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) |
Clean, regulated air to the heat-seal and cutting cylinders on a packaging line: the 5 um element protects valve seats and seals from particulate and water, while the low-pressure regulator holds a gentle, consistent working pressure for the seal arms.
Supply point for low-pressure clamp circuits on CNC fixture panels. The PT1/2 port feeds a clamp manifold, the round psi gauge gives the operator a local setpoint reading, and the manual drain lets maintenance purge accumulated water at shift start.
Air preparation for diverter and pusher cylinders on a sortation conveyor. The filter stage keeps moisture and debris out of the directional valves, and the regulator holds the steady supply pressure the divert actuators were set up for.
The 300 size with PT1/2 ports is the mid-range step in the GFR family; choose the size and port by the flow your line needs. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering. This unit is already specified with a 5 um element (finer than the 40 um standard) and a manual drain; if you would rather not drain by hand, the family also offers automatic and differential-pressure drains. The regulator here is the low-pressure type, and its exact adjustment range is not published in the material we hold, so confirm it with us against your set pressure. Other decodable choices include embedded square or external round gauges in MPa, psi or bar scales, PT (standard) versus G or NPT threads, and bracket or no-bracket mounting.
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 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 sizing from the datasheet on request before you order.
This configuration carries code M, a manual drain: accumulated water in the metal bowl is drained by hand, which suits lines with scheduled maintenance rounds. If you prefer unattended draining, the GFR family also offers automatic (code A) and differential-pressure (blank) drains - ask us for those variants.
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.