The AirTAC GFR300C15LC2 AirTAC Filter Regulator PT1/2 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 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 GFR300C15LC2 is an AirTAC GFR300 filter regulator: a single body that removes water and particulate from compressed air and then regulates the pressure delivered downstream. This unit is built for 1/2 in PT threaded ports, carries the standard 40 um filter element, and uses a differential-pressure drain that bleeds accumulated condensate automatically whenever the pressure differential across the element is high enough. It is the low-pressure (L) regulator type and is fitted with an external round gauge reading in psi. The polycarbonate bowl suits the 300 size, 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 GFR300 family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, a choice of differential-pressure, automatic or manual drains, a 5 um (W) filter element option, embedded square or external round gauges in MPa, psi or bar scales, and PT, G or NPT thread options. AirTAC publishes flow for this family as curves rather than a single rated figure, so ask us to confirm the flow and datasheet figures for your application before ordering.
| Model | GFR300C15LC2 AirTAC Filter Regulator PT1/2 Low Pressure |
|---|---|
| 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 a low-pressure clamping and hold-down circuit on a stamping press: the low-pressure regulator type holds a setting below main-line pressure while the 40 um element keeps dirt and scale out of the clamp cylinders' valve spools.
Conditioning the air feeding grippers, pushers and diverters on a carton packaging conveyor: condensate and particulate drop into the bowl while the regulator keeps a steady downstream setting so cylinders cycle consistently through the shift.
Supplying regulated air to instrumentation and test benches in a quality-control lab, where the round psi gauge gives a direct local reading and the differential-pressure drain keeps the bowl clear during continuous runs.
Size 300 with 1/2 in PT ports sits in the middle of the GFR range; step up to size 400 or 600, or down to 200, if your line needs a different port and flow envelope - we can check the published flow curves against your demand before you order. This configuration pairs the standard 40 um element with a differential-pressure drain, which needs no manual attention under normal duty; a 5 um element (code W) is available where finer filtration is required, and automatic or manual drains can be ordered instead. The fitted round gauge reads in psi; embedded square gauges and MPa or bar scales are the alternatives. PT thread is standard on this unit, with G (BSPP) and NPT available to order, and a mounting bracket is included.
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 family as curves rather than a single rated figure, so there is no one l/min or SCFM number we can quote for this unit. Tell us your application and we will confirm the flow figures from the datasheet for you before you order.
This unit's blank drain code is the differential-pressure type: condensate is discharged automatically whenever the pressure differential across the filter element is high enough, with no operator attention. If you prefer fully automatic draining or a manual drain valve, those are catalogue options (codes A and M) on the GFR300 and we can quote them.
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.