The AirTAC GFR40015MJC2WGK 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 GFR40015MJC2WGK is a filter regulator: it removes water and particulate from compressed air and sets downstream pressure in one body. This size 400 unit is ported G1/2 (BSPP), carries a 5 um filter element (the finer W grade, versus the 40 um standard), drains by hand through its manual drain, and is fitted with an external round gauge scaled in psi. A reverse/check valve is built in, and this configuration ships without a mounting bracket. The PC (polycarbonate) bowl lets you see accumulated condensate at a glance.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, a choice of 40 um or 5 um filtration, manual, automatic or differential-pressure drains, and gauge options in MPa, psi or bar scales. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figure for your application before ordering.
| Model | GFR40015MJC2WGK AirTAC Filter Regulator G1/2, 5 um |
|---|---|
| Series | GFR400 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 | 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.
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 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. |
| 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 | GFR400 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Placed ahead of the tool-clamp and chip-blow-off circuits on a CNC machining centre, it cleans the shop air to 5 um and holds a steady set pressure so clamping force stays repeatable through the shift.
Mounted at the drop point feeding carton-forming and case-sealing cylinders on a packaging conveyor, it strips condensate and fines from the header air and lets the line engineer dial in the pressure the cylinders were sized for.
Installed on the air feed to spray guns in a paint booth, the 5 um element keeps oil-carryover particles and water out of the finish, while the regulator sets the atomising pressure the gun manufacturer specifies.
Start with the port step: size 400 in G1/2 suits lines running larger pneumatic loads, while smaller 200/300 sizes cover lighter circuits - match the size to the flow your application needs rather than to the pipe alone. This unit already carries the finer 5 um element; choose it where downstream valves and cylinders are sensitive to finer particles, and stay with 40 um where coarser protection is enough. The manual drain here means an operator opens the bowl drain periodically; if the installation is unattended or running often, an automatic or differential-pressure drain variant removes that chore. The fitted round gauge reads in psi; square embedded gauges and MPa or bar scales are also available. Thread is G (BSPP); PT is the standard and NPT is an order option, so confirm which your piping uses. A bracket can be added if panel or wall fixing is needed.
Because flow is published as curves and not a single rated figure, send us your application details and we will confirm sizing against the datasheet 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 this series as curves rather than a single rated number, so there is no one l/min or SCFM figure we can honestly quote. Tell us your application and we will confirm the relevant datasheet curve figure on request before you order.
The M in the code means condensate is emptied by hand: an operator opens the drain periodically. That suits attended lines with regular maintenance rounds. If the unit sits in an unattended or hard-to-reach spot, order the automatic (A) or differential-pressure (blank) drain variant instead - the rest of the code stays the same.
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.