The AirTAC GFR300C15JC3WT 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 GFR300C15JC3WT is a size-300 filter regulator: water and particulate filtration plus downstream pressure regulation combined in a single body, with no lubricator. This configuration is ordered with 1/2 in NPT ports, the 5 um filter element (code W, versus the 40 um standard), a differential-pressure drain that bleeds condensate automatically as flow passes through, a round external gauge scaled in bar, and the standard regulator type. Maximum inlet pressure is 1.0 MPa (145 psi), the regulated output adjusts from 0.15 to 0.9 MPa (20-130 psi), the operating temperature range is -5 to 70 C (non-freezing), and the size-300 bowl is polycarbonate. No mounting bracket is included with this code.
This is a genuine AirTAC part. The GFR series is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and can be ordered with manual or automatic drains, 40 um or 5 um elements, square or round gauges in MPa, psi or bar scales, PT (standard), G or NPT threads, a reverse/check valve, and with or without a bracket. Flow is published as curves rather than a single rating, so ask us to confirm the sizing and any datasheet figure for your application before ordering.
| Model | GFR300C15JC3WT 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) |
Clean, regulated air feeding the tool-change clamps and pneumatic cylinders on a CNC machining centre, with the 5 um element protecting directional valves from fine particulate and the bar-scale gauge giving operators a direct setpoint readout.
A filter-regulator point on a carton-forming and sealing conveyor line, supplying consistent pressure to sealing jaws and pusher cylinders while the differential-pressure drain keeps condensate off the line during continuous running.
Conditioning the compressed air feeding loom and winding-machine actuators in a textile plant, where the 5 um grade limits carryover of water and particles into the machine's control valves and the regulator holds a stable working pressure.
Start with the port step: this model is the size-300 body with 1/2 in NPT ports; step up to size 400 or 600 if your line needs more flow capacity, or down to size 200 for compact circuits. Choose the drain to match maintenance access: differential-pressure (this model) drains with flow, automatic suits unattended installations, and manual suits supervised points. Pick the element grade for the air quality the downstream equipment needs: 40 um for general protection, 5 um (this model, code W) for finer pre-filtration ahead of valves and sensitive tools. Gauge options are the embedded square gauge or an external round gauge in MPa, psi or bar scales - this unit carries a round gauge in bar. Thread is PT as standard, with G and NPT as order options (this code is NPT); a bracket is optional and not fitted here. Flow is published as curves, not a single rating, so send us your flow and pressure requirements and we will confirm the correct size 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 as performance curves rather than a single rated figure, so we do not quote one number. Tell us your required flow and working pressure and we will confirm the sizing against the datasheet on request before you order.
The W in the code selects the 5 um filter element instead of the 40 um standard, giving finer protection for downstream valves and tools; the blank drain position selects the differential-pressure drain, which automatically expels condensate as air flows through the bowl. If you prefer an automatic or manually operated drain, that is an order option on the same size.
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.