The AirTAC GFR300C15MJF3T 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 GFR300C15MJF3T is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body, with a drain bowl but no lubricator. This configuration is a size 300 unit with a 1/2 in NPT port, manual drain, standard 40 um filtration, a standard regulator adjustable from 0.05-0.9 MPa (7-130 psi), an embedded square gauge scaled in bar, no check valve fitted and no mounting bracket included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing); the size 300 bowl is polycarbonate (PC).
It is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, a choice of manual, automatic or differential-pressure drain, 40 um standard or 5 um (code W) filtration, PT, G or NPT threads, and optional brackets and external round gauges. Flow is published as curves rather than a single rated figure, so we confirm flow and datasheet figures on request.
| Model | GFR300C15MJF3T 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) |
Feeding filtered, regulated air to the cylinders and valve terminals of a carton-sealing or stretch-wrapping line, with the manual drain purged by an operator at the end of each shift.
Supplying a bench-mounted pneumatic press or clamping fixture where the operator sets the working pressure once and reads it directly off the embedded square gauge scaled in bar.
Regulating air to the gate and diverter actuators along a bottling or material-handling conveyor, with 40 um filtration protecting the downstream directional valves from dirt and water.
Step through the decodable choices in order. Size (200/300/400/600) sets the port and the flow capacity band - this unit is size 300 with a 1/2 in NPT port. Drain type: manual (drained by hand at intervals, as here), automatic, or differential-pressure. Filter grade: 40 um standard, or 5 um (W) where finer filtration is needed. Gauge scale: MPa, psi or bar - this unit carries the square gauge scaled in bar. Thread: PT is the standard; G and NPT are order options, and this unit is NPT. A mounting bracket is optional and not included here. With the manual drain, the regulation range is 0.05-0.9 MPa (7-130 psi). Then the honest routing: flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
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.
Flow for the GFR300 series is published as curves rather than a single rated figure, so we do not quote a number here. Send us your application details - port size, downstream demand and working pressure - and we will confirm the flow and sizing from the datasheet on request.
This unit carries code M: the drain bowl is emptied by hand at intervals, which suits attended installations. If you want unattended operation, the same size is available with an automatic drain (code A) or a differential-pressure drain (blank). Note the regulation range differs by drain type: 0.05-0.9 MPa (7-130 psi) with a manual drain, 0.15-0.9 MPa (20-130 psi) with automatic or differential-pressure. 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.