The AirTAC GFR300C15JC1T 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 GFR300 series combines water and particulate filtration with pressure regulation in a single body. This unit, GFR300C15JC1T, is the size 300 body with a 1/2 in NPT port, a 40 um standard filter element, a differential-pressure drain and a round MPa pressure gauge fitted; no mounting bracket is included. It holds downstream pressure anywhere in the 0.15-0.9 MPa (20-130 psi) setting range with a maximum inlet pressure of 1.0 MPa (145 psi), and it operates in ambient conditions from -5 to 70 C, non-freezing. The polycarbonate bowl suits general plant air, and the differential-pressure drain bleeds accumulated condensate automatically whenever the pressure differential across the element is high enough.
This is a genuine AirTAC part. The GFR300 filter regulator family is one size step in a range covering sizes 200, 300, 400 and 600, with ports from 1/8 in to 1 in, PT as the standard thread and G or NPT as order options. Across the family you can specify an automatic, manual or differential-pressure drain, a 40 um or 5 um (code W) filter grade, and an embedded square gauge or external round gauge with MPa, psi or bar scales. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and any datasheet figure for your application before ordering.
| Model | GFR300C15JC1T 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) |
Point-of-use conditioning ahead of pneumatically actuated workholding clamps and tool-change cylinders on a CNC machining centre, where clean, regulated air protects the clamping sequence from moisture and pressure drift.
Regulated air feed to the pneumatic cylinders that drive case sealers, pushers and diverters on a carton packaging line, keeping actuator speed consistent as the main header pressure fluctuates through the shift.
Filtered and regulated supply to the air-over-oil or direct-air clamping cylinders of a robotic resistance welding gun, where stable set pressure keeps electrode force repeatable part after part.
Choose the size and port step against the air demand of the circuit: this unit is size 300 with a 1/2 in NPT port, and the larger the size the larger the port and the greater the flow capacity. Decide the drain type where the unit will be installed: differential-pressure (as fitted here) drains on demand, automatic drains continuously, and manual drains require an operator to visit the unit. Set the filter grade to the cleanliness the downstream equipment needs: 40 um is standard and 5 um (code W) suits finer applications. Pick the gauge scale that matches your plant instruments - MPa, psi or bar - and the thread that matches your piping: PT is the catalogue standard, with G (BSPP) and NPT available to order, and a bracket can be added if the unit will not be piped rigidly. Because flow is published as curves and not as a single rating, send us your flow and pressure requirements and we will confirm the correct size from 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 series as capacity curves rather than a single rated figure, so we do not quote one number. Tell us your working pressure and air demand and we will confirm the flow from the datasheet for this exact 1/2 in NPT configuration before you order.
This unit has a differential-pressure drain, which discharges collected condensate automatically when the pressure drop across the 40 um element rises - no operator attention in normal running. An automatic drain (code A) empties the bowl continuously regardless of differential, and a manual drain (code M) discharges only when someone opens it, which suits periodically attended installations. All three are catalogue options on the GFR300 family.
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.