The AirTAC GFR300C15JC1WT 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 GFR300 combines water and particulate filtration with pressure regulation in a single body, so one 1/2 in NPT connection cleans the air and sets a stable downstream pressure. This configuration is built with 5 um filtration for finer protection of downstream components, a differential-pressure drain that bleeds condensate only when the pressure differential across the element is high enough, and a round pressure gauge scaled in MPa for at-a-glance setting. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), and no mounting bracket is fitted.
This is a genuine AirTAC part from the GFR300 size class, one of four sizes (200, 300, 400, 600) that step up in port size and flow capacity, with manual, automatic or differential-pressure drain, 40 um or 5 um filtration, PT, G or NPT threads, and square or round gauges in MPa, psi or bar scales among the catalogue options. Published flow data appears as curves rather than a single rating, so we confirm the datasheet and sizing figures on request before you order.
| Model | GFR300C15JC1WT 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) |
Feeds filtered, regulated air to the tool-change clamps and pneumatic actuators on a CNC machining centre, where the 5 um element protects tight-tolerance valves from fine particulate and the round MPa gauge lets the setter verify set pressure at a glance.
Mounted ahead of the valve manifold on a carton-forming and sealing line, it removes condensed water and fine dirt from the shop air and holds the manifold pressure steady through each machine cycle, with the differential drain handling condensate during continuous running.
Installed at the drop to a paint-booth door and spray-gun actuator circuit, it cleans the incoming air to 5 um and regulates it to the pressure the cylinder circuit was designed for, keeping stroke speed consistent without a separate filter and regulator in the line.
Size 300 with a 1/2 in NPT port sits mid-range in the GFR line: if your machine draws more air than a 1/4 in unit can serve, this is the step up, and size 400 or 600 covers heavier demand. The 5 um element (code W) suits actuators, valves and tools that need finer protection than the standard 40 um grade; the differential-pressure drain suits steady-running lines where an auto drain is not wanted. The round MPa gauge is fitted as coded; psi or bar scales and the embedded square gauge are the other catalogue choices. NPT is ordered via the T suffix, with PT standard and G (BSPP) available. No mounting bracket is included, so plan a rigid pipe mounting or order a bracket variant.
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated figure, so we do not quote a flow number here. Send us your line pressure, set pressure and air demand and we will confirm from the datasheet that GFR300 is the right size 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 family as performance curves rather than a single rated figure, so we do not quote a flow number for this unit. Tell us your inlet pressure, set pressure and air demand, and we will confirm the flow from the datasheet and check that size 300 with a 1/2 in port suits your application before you order.
The W in the code GFR300C15JC1WT selects the 5 um filtration grade; the catalogue default for GFR units is 40 um. The finer 5 um element is the usual choice when downstream valves, cylinders or instruments need protection from finer particulate. If your line does not need fine filtration, the standard 40 um grade is available as a separate model code.
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.