The AirTAC GFR30015MLJF2WG 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 series combines water and particulate filtration with pressure regulation in a single body, so one G1/2 (1/2 in) connection cleans the air and sets a stable downstream pressure. This configuration carries the 5 um element (code W) for finer particle removal than the standard 40 um grade, a manual drain you operate by hand to clear collected condensate, the low-pressure regulator type for applications set well below standard ranges, and an embedded square gauge reading in psi. No mounting bracket is included and no reverse/check valve is fitted. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans size 200, 300, 400 and 600 bodies with ports from 1/8 in to 1 in, a choice of manual, automatic or differential-pressure drains, 40 um or 5 um filtration, gauge scale options, and G (BSPP) or NPT threads alongside the PT standard. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR30015MLJF2WG 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 | Low-pressure 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 | 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (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. |
| 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) |
Filtered, regulated air feeds the clamp cylinders that hold workpieces during milling or drilling. The 5 um element protects the clamping valves from fine particles, and the low-pressure regulator holds a gentle, repeatable clamp force without crushing thin-walled parts.
Heat-seal and tucking cylinders on bagging and wrapping machines run at modest set pressures where a standard regulator overshoots. This low-pressure type sets the working pressure the seal arms need, while the manual drain clears condensate at each shift check.
Air cylinders that divert cartons or push product off a belt need clean, steady supply to fire consistently. The G1/2 port feeds the manifold, the 5 um grade guards the directional valves, and the psi gauge lets maintenance verify set pressure at a glance.
Work from the port step first: size 300 with a 1/2 in port suits lines whose consumption sits mid-range; step up to size 400 or 600 if the curve shows your flow needs more, or down to size 200 for compact points of use. Because flow is published as curves and not a single rating, send us your consumption and pressure targets and we will confirm sizing against the datasheet before you order. This unit is the low-pressure regulator type, so its exact adjustment range differs from the standard GFR figures - confirm the set pressure with us. Choose the drain to match maintenance habits: this manual drain needs someone to open it periodically, while automatic (A) or differential-pressure (blank) drains suit unattended installations. The 5 um element here is the finer option; 40 um is the standard grade if 5 um is not required. The fitted square gauge reads psi; MPa and bar scales are available, and an external round gauge is optional. Thread is G (BSPP) on this model; PT is the catalogue standard and NPT is an order option. A bracket is not included on this code (code J) but is available on other variants.
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 GFR300 series as curves, not as a single rated number, so we do not quote a l/min, m3/h or SCFM figure. Send us your consumption and upstream/downstream pressures and we will confirm the sizing from the datasheet on request before you order.
The M in the code means the drain is operated by hand: someone opens it periodically to release collected water. If the unit sits in an unattended or hard-to-reach spot, choose the automatic drain (code A) or the differential-pressure drain (blank) variant instead. This model keeps the manual drain, the 5 um element, the low-pressure regulator type and the psi square gauge.
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.