The AirTAC GFR300C15MC1TK AirTAC Filter Regulator NPT1/2 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 GFR300C15MC1TK is an AirTAC GFR-series filter regulator: one body that first removes water and particulate from compressed air through a 40 um element, then regulates downstream pressure across 0.05-0.9 MPa (7-130 psi). This size 300 unit is threaded NPT1/2 (1/2 in), carries a manual-drain PC (polycarbonate) bowl, a round MPa-scale pressure gauge, a built-in check valve, and includes the mounting bracket. 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 to 1 in, and options include a 5 um filter element, automatic or differential-pressure draining, G (BSPP) or NPT threads, alternative gauge scales, and a low-pressure regulator type. Rated flow is published as curves rather than a single figure, so contact us and we will confirm the datasheet and sizing for your application.
| Model | GFR300C15MC1TK AirTAC Filter Regulator NPT1/2 |
|---|---|
| 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) |
Point-of-use supply for tool-clamp and chip-removal circuits on a CNC machining centre: the 40 um element strips water and grit before the regulator sets clamp pressure on the 1/2 in drop.
Feeding cylinders and air jets on a carton-sealing or case-packing conveyor line, where the manual-drain bowl is emptied at shift changeover and the gauge keeps the set pressure visible to operators.
Conditioning air to spray guns and air-assisted applicators in a paint booth: filtered, regulated air at a stable setting supports consistent finish work, with the check valve holding downstream pressure when supply dips.
Size 300 with a 1/2 in NPT port suits lines plumbed at 1/2 in; step up to size 400 or 600, or down to 200, when your demand differs - because flow is published as curves rather than a single rating, ask us to check the curve against your application before ordering. This unit is ordered with a manual drain (the bowl is emptied by hand on a schedule; automatic and differential-pressure drains are available), a 40 um element (a 5 um W grade is offered where finer filtration is needed), a round MPa gauge (psi or bar scales and the embedded square gauge are alternatives), a fitted check valve, and the mounting bracket included. Thread here is NPT; PT is the standard and G (BSPP) is also a catalogue option.
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 figure here. Send us your line pressure and air demand and we will confirm the flow curve and sizing from the datasheet on request.
Manual drain means the bowl is emptied by hand, which suits attended lines where draining is part of the maintenance round. If the unit will sit unattended, automatic or differential-pressure draining can be ordered instead - just ask when ordering.
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.