The AirTAC GFR30015MJC2WG AirTAC Filter Regulator G1/2, 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 AirTAC GFR300 combines water and particulate filtration with pressure regulation in a single body, conditioning compressed air and holding a steady downstream setting in one installation. This configuration is built on the 300 size with a G1/2 (BSPP) port, and the code tells you exactly how it is fitted up: a 5 um filter element (the finer W grade, versus the standard 40 um), a manual drain on the PC bowl that you open by hand to expel collected condensate, a round external gauge reading in psi, and no mounting bracket. The regulator is the standard type with an adjustment range of 0.05-0.9 MPa (7-130 psi), and the unit handles a maximum inlet pressure of 1.0 MPa (145 psi) at temperatures from -5 to 70 C (non-freezing).
This is a genuine AirTAC part from the G-series filter-regulator line, which spans the 200, 300, 400 and 600 sizes with port options from 1/8 to 1 inch, a choice of drain type, 40 um or 5 um filtration, gauge style and scale, and PT, G or NPT threads. Flow for this series is published as curves rather than a single rated figure, so if you need a datasheet or sizing confirmation for your application, ask us and we will confirm the figures on request.
| Model | GFR30015MJC2WG AirTAC Filter Regulator G1/2, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (G (BSPP) 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, psi 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 0.05 - 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 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. |
| (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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeding a workshop air press or clamp cylinder circuit: the 1/2 inch port suits a main drop feeding a work cell, the regulator holds the cylinder pressure steady for consistent forming or clamping, and the 5 um element keeps fine particulate out of the valve stack.
Conditioning the shop-air feed to a CNC machining centre or lathe, where the regulator pins the pressure to the machine tool builder's setting and the 5 um filtration protects solenoid valves and air bearings from water and fine dirt.
Supplying the cylinder-and-valve bank of a cartoning or wrapping machine: the filter-regulator sits at the machine inlet, the manual drain is bled at shift start, and the psi round gauge gives the operator a clear dial to verify the setting.
Sizing a GFR starts with the port step: the 300 size here carries a 1/2 inch port, one step up from the 200 series, and the right choice depends on the air demand of the downstream circuit - we can check that against the published flow curves before you order. The decodable options on this code are already fixed: manual drain (simple and low-cost, but it needs an operator to bleed the bowl, unlike the automatic or differential-pressure alternatives), the 5 um W-grade element where the standard 40 um would leave finer contamination downstream, a round psi-scale gauge, and G (BSPP) thread - PT is the standard thread and G and NPT are catalogue options to order. No bracket is fitted on this version.
One honest note on selection: AirTAC publishes flow for this series as curves, not as a single rated number, so we do not quote a flow figure here. Tell us your line pressure, required downstream setting and air consumption, and we will confirm the correct size against the datasheet on request.
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 a single rated figure, so we do not quote a l/min or SCFM number. Tell us your inlet pressure, required downstream setting and air demand, and we will confirm the sizing against the datasheet on request before you order.
The M in the code specifies a manual drain on the PC bowl: condensate and the 5 um element's collected dirt are expelled by opening the drain by hand, typically as part of a routine check. If you would rather not rely on an operator, the same GFR300 body is available with automatic or differential-pressure drains - ask us for those model codes.
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.