The AirTAC AirTAC GFR400C15C2G Filter Regulator, G1/2 Port 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 GFR400C15C2G is a size-400 filter regulator: it removes water and particulate from compressed air and sets downstream pressure in one body, so one unit does the filtering and the regulating on a 1/2 in line. This configuration carries a 40 um standard filter element and a differential-pressure drain, which bleeds accumulated condensate automatically whenever the pressure differential across the bowl is high enough - no daily manual draining on a well-loaded line. The standard regulator covers a 0.15-0.9 MPa (20-130 psi) setting range with a maximum inlet pressure of 1.0 MPa (145 psi), and the fitted round gauge reads in psi so operators can set and check downstream pressure at a glance. A mounting bracket is included, the bowl on this 400 size is polycarbonate, and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and each size can be ordered with a different filter grade (40 um standard, 5 um with code W), drain type (differential-pressure, automatic or manual), gauge style and scale, thread option (PT standard, G or NPT to order) and bracket choice. Flow is published as curves rather than a single rated figure, so ask us to confirm the flow and datasheet figures for this exact model before you order.
| Model | AirTAC GFR400C15C2G Filter Regulator, G1/2 Port |
|---|---|
| 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 CNC machining cell fed from a 1/2 in drop, this unit cleans the shop air of water and chips-scale particulate and holds a steady regulated pressure to the machine's pneumatic tool changers, clamps and chip conveyors, with the psi gauge letting the setter verify setpoint during changeover.
On a carton-forming and sealing line, the filter regulator conditions the air feeding the cylinder manifold: the 40 um element stops debris reaching the valves, the differential-pressure drain keeps condensate off the bowl during continuous shifts, and the regulator pins the pressure the seal cylinders see.
In a robotic welding cell, clean regulated air to the gripper and clamping circuit prevents sticking valves and erratic grip force; this unit filters and regulates at the cell drop, and the included bracket lets it mount directly on the cell's service board next to the lockout valve.
Start with the port step: this unit is size 400 with a G1/2 (BSPP) port - the right choice when your air main is 1/2 in; step down to size 300 or up to size 600 if your line or required flow differs. Choose the drain to match maintenance reality: differential-pressure (this model) drains itself under load, automatic drains on a timer-free basis even at low flow, and manual suits intermittently used lines where someone checks the bowl. Pick the filter grade for the job: 40 um suits general plant air protection, while the 5 um option (code W) suits finer downstream equipment. Gauge style and scale (square embedded or round external; MPa, psi or bar) and thread (PT standard, G or NPT to order) are decodable options too.
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated number, so we cannot quote you a rated flow figure here. Send us your application details and we will confirm the flow and datasheet figures for the GFR400C15C2G against your requirement 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 family as curves, not as a single rated figure, so we do not state a rated flow number here. Tell us your line pressure, set pressure and the equipment you are feeding, and we will confirm the flow and datasheet figures for this exact model against your application before you order.
This unit's blank drain code means a differential-pressure drain: it discharges collected condensate automatically when the pressure differential across the bowl is high enough, which suits continuously loaded lines. If your line runs intermittently or at low flow, the automatic drain (code A) drains regardless of load, and the manual drain (code M) suits lines someone checks routinely. All three are orderable on this size.
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.