The AirTAC GFR300C15MF1T AirTAC Filter Regulator NPT 1/2 in 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 GFR300C15MF1T is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single body. This unit is built on the GFR300 size with 1/2 in NPT ports, a 40 um filter element, a metal bowl with a manual drain, and an embedded square gauge reading in MPa. The standard-type regulator adjusts from 0.05 to 0.9 MPa (7-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), the operating temperature range is -5 to 70 C (non-freezing), and no reverse/check valve is fitted. A mounting bracket is included.
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 the catalogue options include automatic, manual or differential-pressure drains, a finer 5 um element (code W), gauge scales in psi or bar, G or NPT threads, and a no-bracket variant. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR300C15MF1T AirTAC Filter Regulator NPT 1/2 in |
|---|---|
| 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) |
Placed at the drop feeding a CNC machine's pneumatic clamps and tool-change cylinders, it strips water and pipe scale from the shop air line and holds one steady pressure setting while the clamps and tool changer cycle all shift.
Mounted at the head of a carton-sealing or case-packing conveyor, it gives the pusher, wrap and flap cylinders one clean, regulated air point in a single body instead of a separate filter and regulator.
Installed on air drops at assembly workstations, it protects downstream valves and cylinders from rust and water while letting each station set its own pressure under the square MPa gauge.
Size the unit by the port and flow step: GFR300 carries 1/2 in ports and sits mid-range in the 200/300/400/600 ladder, so step up to GFR400 or GFR600 when downstream demand outgrows a 1/2 in line. Drain type is a real choice: this manual-drain version needs someone to open the bowl drain periodically, while automatic and differential-pressure drains (different codes) suit unattended positions. The 40 um element is the standard grade; specify 5 um (code W) where finer filtration is needed. Gauge scale (MPa, psi or bar), thread (PT is the standard, with G and NPT as order options) and the bracket are also decodable choices. Flow is published as curves, not a single rating, so send us your air demand 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 GFR300 size as curves rather than a single rated figure, so there is no one number we can quote here. Tell us your line pressure and air demand and we will confirm the flow from the datasheet on request.
The M in the code sets a manual drain: someone opens the drain at the bottom of the metal bowl to let collected water out. Choose it where the unit is easy to reach and checked routinely; pick an automatic or differential-pressure drain (a different code) for unattended positions. This unit also carries the standard 40 um element and a square gauge reading in MPa.
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.