The AirTAC GFR300C15JC3T 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 GFR300C15JC3T is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 300 unit has 1/2 in NPT ports, a 40 um standard filter element, and a differential-pressure drain on the polycarbonate bowl. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), a maximum inlet pressure of 1.0 MPa (145 psi), and a round pressure gauge fitted that reads in bar. Operating temperature is -5 to 70 C (non-freezing). This configuration has no mounting bracket and no reverse/check valve.
This is a genuine AirTAC part. The GFR filter-regulator family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and with choices of drain type, 40 um or 5 um filtration, gauge style and scale, thread (PT standard, G and NPT as order options), and bracket. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C15JC3T 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) |
On a beverage bottling line, this filter regulator conditions the air feeding gripper and clamp cylinders: water and particles are drained out of the supply and the pressure to the actuators is held steady so bottle handling stays repeatable through the shift.
On a CNC machining centre with pneumatic workholding, the unit filters the shop air and sets a fixed regulated pressure to the clamping circuit, with the bar-scale gauge giving the operator a direct reading of the set pressure at the machine.
On a distribution-centre conveyor with pneumatic divertors, stoppers and pushers, this unit supplies clean, regulated air to the directional valves and cylinders, with the differential-pressure drain clearing accumulated water from the bowl during operation.
Choose the size and port step against the air demand of the circuit: this unit is size 300 with 1/2 in NPT ports, and the family steps through sizes 200, 300, 400 and 600 as flow and port size increase. Drain type is a real choice: differential-pressure (as fitted here), automatic, or manual. Filtration is 40 um standard; select the W option for 5 um where finer particle removal is needed. The regulator adjustment range depends on drain type: 0.15-0.9 MPa (20-130 psi) with automatic or differential-pressure drain, and 0.05-0.9 MPa (7-130 psi) with manual drain. Gauge style and scale are selectable (embedded square or external round; MPa, psi or bar - this unit carries a round bar gauge). Thread is PT as standard with G (BSPP) and NPT as order options, and a mounting bracket can be added if the unit is not panel- or manifold-mounted.
Because flow for this family is published as curves and not as a single rated figure, we do not quote a flow number here. Send us your application details and we will confirm sizing and the full datasheet figures on request 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 series as curves rather than as a single rated figure, so we do not state a flow number. Tell us your application and required flow, and we will confirm the sizing and the datasheet curve figures for this 1/2 in NPT unit on request before you order.
Yes. Drain type is a decodable option on the GFR family: differential-pressure drain (the default, as on this model), automatic drain (code A), or manual drain (code M). With automatic or differential-pressure drain the regulator adjustment range is 0.15-0.9 MPa (20-130 psi); with manual drain it widens to 0.05-0.9 MPa (7-130 psi). Ask us to quote the variant you need.
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.