The AirTAC GFR300C15ANT 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 AirTAC GFR300C15ANT is a filter regulator: water and particulate removal plus downstream pressure regulation combined in one body. This 300-size unit carries a 1/2 in NPT port, a 40 um standard filtration element and an automatic drain that expels collected condensate without manual attention. The standard regulator adjusts outlet pressure across 0.15-0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and the unit operates from -5 to 70 C in non-freezing conditions. No pressure gauge is fitted on this variant, and a mounting bracket is included for secure installation.
This is a genuine AirTAC part from the GFR filter-regulator family, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in and thread options in PT, G (BSPP) and NPT. Drain, filtration grade, gauge and bracket choices vary by model code. Flow figures for this series are published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR300C15ANT 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) |
Feeds filtered, regulated air to the tool-clamp and tool-change circuits of a CNC machining centre, with the automatic drain keeping condensate out of the valves between shifts.
Supplies clean air at a set pressure to the cylinder-driven diverters and sealing heads of a packaging line, protecting downstream components from water and debris carried in the shop-air main.
Conditions the supply to pneumatic grippers and clamps in a robotic assembly cell, holding a stable working pressure so pick-and-place sequences repeat without pressure drift.
Size and port are the first decodable choices: the 200/300/400/600 steps pair with increasing port sizes and flow capacity, so match the 1/2 in NPT port of this 300-size unit against your line size and air demand. Drain type is a real decision: automatic (this model) suits unattended duty, manual drain suits periodically checked installations, and differential-pressure drain is the catalogue default. Filtration is 40 um standard; specify the W code for a 5 um element where finer protection is needed. Units with a regulator can be ordered with an embedded square gauge or an external round gauge in MPa, psi or bar scales; this variant carries none. PT is the standard thread, with G (BSPP) and NPT as order options, and the bracket is included.
One honest note before ordering: flow for this series is published as curves, not a single rated figure, so send us your application details and we will confirm sizing against the datasheet before you commit.
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 rather than a single rated figure, so we do not quote a number here. Send us your line size and air demand and we will confirm the datasheet flow figures for this 300-size, 1/2 in NPT unit on request.
Yes. The N code on this variant means no gauge is supplied, but GFR units can be ordered with an embedded square gauge or an external round gauge, with scales in MPa, psi or bar. Specify the gauge code when ordering if you want a fitted pressure indication.
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.