The AirTAC GFR30015MC1WTK AirTAC Filter Regulator NPT1/2 5 um is a genuine G-series filter regulator: water separation, 5 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 GFR30015MC1WTK is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built with a 1/2 in NPT port, a 5 um filter element (the finer of the two catalogue grades), a manual drain for emptying the bowl, and a round pressure gauge with an MPa scale so the set pressure is visible at a glance. A reverse (check) valve is fitted, and the unit includes a mounting bracket. The polycarbonate bowl suits this 300 size; maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR series is available in sizes 200, 300, 400 and 600 with a choice of port sizes, PT, G or NPT threads, differential-pressure, automatic or manual drains, 40 um or 5 um filtration, gauge style and scale, and with or without a check valve. Because flow is published as curves rather than a single rated figure, we confirm the datasheet and sizing figures for your application on request.
| Model | GFR30015MC1WTK AirTAC Filter Regulator NPT1/2 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 5 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 — round, MPa 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). |
| C | Gauge shape: Round. C is round, F is square. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Fitted on the shop-air drop feeding a CNC machining centre, it filters water and swarf-carrying particulate down to 5 um and holds a steady regulated pressure to the machine's pneumatic valves and tool-change circuit. The round MPa gauge lets the setter read the set point directly, and the check valve holds the line if supply pressure dips.
Installed ahead of the atomising-air regulators on a paint spray line, the 5 um element strips water and pipe scale that would otherwise blemish the finish, while the regulator sets the stable pressure the spray guns need. The manual drain suits a booth serviced at shift start, and the NPT1/2 port matches the booth's air drop.
Mounted at the inlet of a carton-sealing and palletising line's air manifold, it conditions the supply for cylinders and gripper actuators: 5 um filtration protects the directional valves, regulation keeps clamp and push forces consistent, and the check valve prevents backflow through the unit when the line is isolated.
Start with the port size against the air demand of the circuit: this unit is a size 300 with a 1/2 in NPT port; smaller or larger GFR sizes step the port and the flow capacity accordingly. Choose the drain to suit access: manual (as here) needs periodic draining by hand, automatic drains without attention, and the differential-pressure default drains on a pressure drop. Choose 40 um for general protection or 5 um (this unit) where finer filtration is wanted ahead of sensitive components. Gauge style (embedded square or external round) and scale (MPa, psi or bar) are selectable, as are thread PT (standard), G or NPT, and the bracket. Because flow is published as curves rather than a single rating, 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. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as curves rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM number. Tell us your application's air demand and we will confirm the sizing from the datasheet on request.
The M in the code specifies a manual drain: condensate collected in the polycarbonate bowl is released by hand. Choose manual where the unit is accessible and inspected on a routine (for example at shift start); choose automatic where the unit is hard to reach, or the differential-pressure default where draining on a pressure drop suits the duty. Regulation range is 0.05-0.9 MPa (7-130 psi) with the manual drain.
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.