The AirTAC GFR400C15MJF2GK AirTAC Filter Regulator G1/2 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 GFR400C15MJF2GK is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single body. This size 400 unit is built around a G1/2 (1/2 in) port with G thread, carries a 40 um filter element, and uses a manual drain, so an operator opens the drain at the bowl when checking the line. The standard regulator covers an adjustment range of 0.05-0.9 MPa (7-130 psi) and the embedded square gauge is scaled in psi for direct set-and-read adjustment. A reverse/check valve is fitted, holding downstream pressure if the supply side drops, and the unit is supplied without a mounting bracket.
This is a genuine AirTAC part from the G-series filter regulator line, which spans sizes 200 to 600 with port options from 1/8 in to 1 in, a choice of manual, automatic or differential-pressure drain, a 5 um element option, gauge scales in MPa, psi or bar, and PT, G or NPT threads. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR400C15MJF2GK AirTAC Filter Regulator G1/2 |
|---|---|
| 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) |
On a stamping or forming cell, this unit conditions the air feeding the press clutch and clamp cylinders: the 40 um element keeps weld spatter and pipe scale out of the valve manifold, the regulator holds a steady set pressure for repeatable clamping force, and the check valve holds the downstream side if the supply drops mid-cycle.
On a cartoning or case-packing line, the G1/2 connection serves the main air drop to the machine, the regulator pins the pressure that the sealing and diverting cylinders see, and the manual drain lets the changeover operator clear accumulated condensate during the daily check.
On a process skid with a bank of pilot-operated solenoid valves, this filter regulator sits ahead of the manifold: the 40 um element and water removal protect the pilot seats, the psi-scaled square gauge gives the technician a direct reading at the setpoint, and the fitted check valve prevents backflow surprises during shutdown.
Start with the port: this unit is the size 400 body on a 1/2 in G-thread connection, the step that suits lines running larger cylinder and valve manifolds; if your consumption sits below that band, the size 300 on 3/8 in or 1/2 in may be the leaner choice, and size 600 steps up from here. On drain, this configuration is manual - simple and low-cost where an operator passes the unit regularly; choose automatic drain if the bowl sits where nobody walks, and differential-pressure drain if you want draining tied to flow conditions. The 40 um element is the standard grade for general plant air; specify the W variant if you need 5 um protection for finer components. The square gauge here reads psi; MPa and bar scales are available if your team works in those units. Thread is G (BSPP); PT is the catalogue standard and NPT is an order option, so pick the one that matches your piping. A bracket can be added if you want the unit fixed to a panel or wall. Flow for this series is published as curves, not a single rating, so send us your air demand 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. 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 performance curves, not as a single rated number, so we do not quote a fixed l/min or SCFM figure for this unit. Tell us your line pressure, set pressure and air demand, and we will confirm the sizing against the datasheet curves on request before you order.
A manual drain means condensate is emptied by opening the drain at the bowl when an operator checks the unit, which suits positions that are visited regularly as part of a maintenance walk. If the unit will sit in an inaccessible spot or on a line that runs unattended, the automatic-drain variant of the same GFR400 body is the better decode. Both share the same 40 um standard element, 0.05-0.9 MPa regulation range and 1/2 in G-thread connection on this configuration.
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.