The AirTAC GFR300C15MJC2W 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 GFR300C15MJC2W is a size-300 filter regulator that removes water and particulate from compressed air and sets downstream pressure in a single body. This configuration carries a 1/2 in PT port, a 5 um filter element (the finer of the two catalogue grades), a manual drain for the bowl, and a round pressure gauge reading in psi. The standard regulator covers an adjustment range of 0.05-0.9 MPa (7-130 psi), and the unit is rated for a maximum inlet pressure of 1.0 MPa (145 psi) at -5 to 70 C (non-freezing). No mounting bracket is fitted and no reverse/check valve is included.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of PT, G or NPT thread, differential-pressure, automatic or manual drains, 40 um or 5 um filtration, and gauge or no-gauge options. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C15MJC2W 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 filtered, pressure-set air to the tool-clamp and chuck-actuation circuits of a CNC machining centre, where the 5 um element protects precision valves from fine particulate and the psi gauge lets setters verify clamp pressure at a glance.
Conditioning the air feeding pneumatic cylinders on a carton-forming and sealing station, with the manual drain bled during shift-change maintenance and the regulator holding a steady setting for consistent case-ejector stroke.
Supplying regulated air to pop-up divertors, stoppers and gate actuators along a conveyor line, where clean, stable pressure keeps gate timing repeatable and the 1/2 in port serves a main branch run.
Choose the size-300 / PT1/2 step when your line's air consumption sits above what a 1/4 in or 3/8 in unit can pass - size up rather than overspeeding a smaller body. This unit has a manual drain, which suits installations where an operator can bleed the bowl as part of a routine; pick an automatic or differential-pressure drain variant if the bowl is hard to reach. The 5 um element (code W) is the finer grade versus the 40 um standard, appropriate where downstream valves and cylinders are sensitive to fine particulate. The round external gauge here reads in psi; embedded square gauges with MPa, psi or bar scales are also available. PT thread is standard on this model, with G (BSPP) and NPT offered as order options, and a mounting bracket can be added if the unit will not be bolted through its own body. Flow for this family is published as curves, not a single rating, 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 GFR series as curves, not as a single rated figure, so we do not quote a rated flow, Cv or SCFM number for this unit. Tell us your application's air demand and working pressure and we will confirm the sizing against the datasheet curves on request before you order.
The M in the code sets a manual drain: an operator opens the bowl drain to discharge collected water, which suits accessible installations on a maintenance routine - automatic or differential-pressure drains are available on other variants if the bowl is hard to reach. The W sets the 5 um filter element, the finer grade versus the 40 um standard, for lines where downstream valves and cylinders need protection from fine particulate.
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.