The AirTAC GFR400C15MJF2WK AirTAC Filter Regulator PT1/2, 5 um 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 See datasheet ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR400C15MJF2WK is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure in a single body. This 400-size unit is built for a 1/2 in PT port and carries the W-code 5 um filtration element, one step finer than the 40 um standard element. Drainage is manual - you open the drain on the metal bowl to expel collected water when it suits your maintenance routine. A square pressure gauge reading in psi is fitted, the regulator is the standard type with an adjustment range of 0.05-0.9 MPa (7-130 psi), and a reverse/check valve is included to guard against backflow. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. No mounting bracket is included with this code.
This is a genuine AirTAC part. The GFR400 sits in the mid-range of the GFR filter-regulator line, which spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and options across drain type, filtration grade, gauge style and scale, thread, bracket and reverse valve. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before you order.
| Model | GFR400C15MJF2WK AirTAC Filter Regulator PT1/2, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard 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 0.15 - 0.9 MPa (20 - 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. |
|---|---|
| C1 | Port size See datasheet. This body offers 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT 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 | GFR400 · See datasheet · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-C1 (two-unit set) |
A point-of-use filter regulator feeding the pneumatic valves, chucks and clamps of a CNC machining centre: water and chips-carrying particulate are stripped out down to 5 um and the supply pressure is held at the setting the machine's FRL circuit was designed around, with the manual drain opened during daily checks.
Regulated, filtered air for the extend-and-retract cylinders on a carton-sealing or case-packing conveyor. The 1/2 in PT port suits the main drop leg to a section of the line, and the manual drain lets maintenance staff clear accumulated condensate at the start of each shift.
Clean, pressure-stable air ahead of the spray guns in a paint or coating finishing line. The 5 um element catches finer particulate than the standard element before air reaches the gun, and the regulator holds a steady gun supply pressure so finish quality does not drift as the line runs.
Pick the size and port against the air your application actually consumes: the GFR400 with its 1/2 in PT port is the larger mid-range step in the 200/300/400/600 ladder, and the right step depends on flow demand - we can check the published flow curves against your consumption before you commit. Drain type is a real choice: manual (this code) means draining the bowl by hand, while automatic and differential-pressure drains are available on other codes. Filtration here is the 5 um element (code W) versus the 40 um standard. The fitted square gauge reads psi; scales in MPa or bar and an external round gauge are order options. PT is the standard thread; G (BSPP) and NPT are catalogue options to order. A bracket is optional and not included with this code. Because flow is published as curves, not a single rating, ask us to confirm sizing against the application before ordering.
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 this series as curves rather than a single rated figure, so we do not quote a number here. Tell us your working pressure and air consumption and we will confirm the flow and datasheet figures for this exact model on request before you order.
Manual drain (this code) means you open the drain on the bowl yourself to expel collected water - simple and well suited to units that are checked regularly. The GFR range also offers automatic and differential-pressure drains on other codes. Note the regulator adjustment range differs by drain type: manual-drain units adjust from 0.05-0.9 MPa (7-130 psi), while automatic and differential-pressure drain versions adjust from 0.15-0.9 MPa (20-130 psi).
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.