The AirTAC GFR30015MF2GK AirTAC Filter Regulator G1/2 Manual Drain 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 PT1/2" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR30015MF2GK is a 300-size filter regulator that removes water and particulate from compressed air and sets downstream pressure in a single body. This configuration carries a G1/2 (BSPP) port, a manual drain bowl in polycarbonate, a 40 um standard filter element, an embedded square gauge reading in psi, a reverse/check valve, and a mounting bracket. With manual drainage, the regulation range is 0.05-0.9 MPa (7-130 psi) and maximum inlet pressure is 1.0 MPa (145 psi); operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part in the GFR filter-regulator family, which spans sizes 200, 300, 400 and 600 with matching port sizes. Related options include automatic or differential-pressure drains, a 5 um element (code W), gauge scales in MPa or bar, an external round gauge, and PT or NPT threads to order. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR30015MF2GK AirTAC Filter Regulator G1/2 Manual Drain |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (G (BSPP) thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
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 0.05 - 0.9 MPa (7 - 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. |
|---|---|
| 15 | Port size PT1/2". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeding clean, regulated air to the tool-clamp and chip-clearing cylinders on a CNC machining centre, with the manual-drain bowl bled during shift changeover and the psi gauge giving the setter a direct pressure readout.
Conditioning the air that drives the flap-fold and taping heads on a carton-sealing machine, where the 40 um element keeps debris out of the valves and the regulator holds a steady setting for consistent case closure.
Serving a drop at an automotive assembly station where impact wrenches and nutrunners run off regulated air, with the reverse/check valve holding the downstream setting if the main supply is interrupted.
Choose the size and port step against the air demand of the circuit: the 300 size here gives a 1/2 in connection, and larger sizes carry larger ports and more flow. Drain type is a real choice: manual drainage (this model) needs periodic bleeding by an operator, automatic drain handles condensate unattended, and differential-pressure drain suits setups where you want drainage tied to the pressure differential. Filter grade is 40 um standard or 5 um with code W for finer protection. Gauge scale can be MPa, psi or bar, with an embedded square gauge standard and an external round gauge optional. Thread is G (BSPP) here; PT is the standard thread and G or NPT are order options. A bracket is included on this unit.
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated number, so we do not quote a flow figure here. Send us your application details and we will confirm the sizing and datasheet figures before you order.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR family as curves rather than a single rated figure, so we do not state a flow number here. Tell us your application and we will confirm the flow and datasheet figures for this 300-size, G1/2 unit on request before you order.
The M in the code GFR30015MF2GK selects a manual drain bowl, which an operator bleeds periodically to remove collected condensate. If you prefer unattended drainage, the same family is available with an automatic drain (code A) or a differential-pressure drain (blank code), and the manual-drain version also carries the wider 0.05-0.9 MPa (7-130 psi) regulation range.
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.