The AirTAC GFR300C15JF1WTK AirTAC Filter Regulator NPT1/2 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 GFR300C15JF1WTK is a filter regulator: water and particulate filtration plus downstream pressure regulation in a single body. This size 300 unit carries a 1/2 in NPT port, a 5 um filter element (the finer of the two catalogue grades), a differential-pressure drain that bleeds collected condensate automatically as flow passes through, an embedded square gauge reading in MPa, and a reverse/check valve that holds the regulated circuit if upstream supply is interrupted. It is ordered without a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulation range with differential-pressure drain is 0.15-0.9 MPa (20-130 psi), and the working temperature is -5 to 70 C (non-freezing). The bowl on this size is polycarbonate (PC).
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 PT, G and NPT thread options. Drain types, filter grades, gauge styles and scales, brackets and check valves are all selectable in the range. Flow is published as curves rather than a single rated figure; ask us and we will confirm the datasheet and sizing figures for your application on request.
| Model | GFR300C15JF1WTK AirTAC Filter Regulator NPT1/2 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) |
Feeds clean, regulated air to the tool-change clamps and pneumatic actuators on a CNC machining centre, with the 5 um element guarding fine-tolerance valves and the check valve holding the clamp circuit if shop supply dips.
Sits at the drop of a packaging conveyor line to regulate air to diverter cylinders, sealing jaws and reject pushers, keeping actuator speed steady as line demand fluctuates through the shift.
Conditions the air feeding spray guns and booth door cylinders in a paint shop, where the 5 um grade limits water and particulate carry-over and the MPa gauge lets operators verify set pressure at a glance.
Pick the size by the port and flow step: 200, 300, 400 or 600, with ports from 1/8 in up to 1 in - larger sizes carry more flow, and flow curves are available from us on request to check against your demand. Choose the drain: differential-pressure (this unit, self-bleeding with flow), automatic, or manual for periodic draining. Choose the filter grade: 40 um standard or 5 um (code W) for finer protection of downstream tools and valves. Gauges come as the embedded square type with MPa, psi or bar scales, or an optional external round gauge. Thread is PT as standard with G (BSPP) and NPT as order options - this unit is NPT. Brackets are optional; this configuration omits one. Before ordering, send us your application conditions and we will confirm sizing against the published flow curves.
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, port size and expected air consumption, and we will confirm the datasheet flow curve and check the sizing for your application on request.
The differential-pressure drain bleeds collected condensate out automatically as air flows through the bowl, with no operator attention. Choose the automatic drain (code A) if you want positive draining even at low or intermittent flow, or the manual drain (code M) if someone is on site regularly to drain the bowl - note the manual-drain version also widens the regulation range down to 0.05 MPa (7 psi).
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.