Airtac GFR Filter Regulator GFR400C15MF1K
The AirTAC GFR Filter Regulator GFR400C15MF1K 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.
- TypeFilter regulator
- Port sizeSee datasheet
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- DrainDifferential-pressure drain
- Bowl materialPC
- Pressure gaugeFitted
- ThreadPT
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GFR Filter Regulator GFR400C15MF1K
GFR400C15MF1K is a genuine AirTAC G-series filter regulator: a 400-size unit that cleans compressed air and regulates downstream pressure in one body. This configuration pairs a 1/2 in PT port with a manual-drain polycarbonate bowl, the standard 40 um filter element, the embedded square pressure gauge scaled in MPa, and a built-in reverse (check) valve that helps hold downstream pressure if the supply drops. Manual drain means an operator opens the bowl drain to clear collected water.
Max inlet pressure is 1.0 MPa (145 psi); with a manual drain the regulator adjustment range is 0.05-0.9 MPa (7-130 psi), and working temperature is -5 to 70 C. The G-series spans 200, 300, 400 and 600 sizes from 1/8 in to 1 in ports, with automatic, manual or differential-pressure draining, 40 um or 5 um elements, square or round gauges in MPa, psi or bar scales, G (BSPP) or NPT threads, and bracket or no-bracket mounting. Flow is published as curves rather than a single rating, so we confirm datasheet figures on request.
Airtac GFR Filter Regulator GFR400C15MF1K Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C15MF1K |
|---|---|
| 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.
Model Code: Airtac GFR Filter Regulator GFR400C15MF1K
| 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.
Size Class
- GFR200PT1/8" - PT1/4"
- GFR300PT1/4" - PT1/2"
- GFR400PT3/8" - PT1/2"
- GFR600PT3/4" - PT1"
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) |
Where the Airtac GFR Filter Regulator GFR400C15MF1K Is Used
Pneumatic press hold circuit
Regulating and filtering the air to a small pneumatic press where the workpiece must stay clamped during a supply dip; the reverse valve holds the downstream pressure while the square gauge shows the set force pressure.
Weld fixture clamping manifold
Supplying the toggle-clamp manifold on a weld fixture table, where the 40 um element keeps welding-area dirt out of the clamp valves and the check valve prevents clamps relaxing if shop air drops mid-weld.
Prefabrication station air drops
Feeding regulated air drops at a steel or timber prefabrication station where nailers and clamps run off one 1/2 in supply, with the manual drain emptied as part of the end-of-shift housekeeping round.
Is the Airtac GFR Filter Regulator GFR400C15MF1K the Right Unit?
The 400 size with 1/2 in ports sits in the upper-mid band of the G-series; step to 300 (3/8 in) or 600 (3/4 in - 1 in) to match the flow your circuit demands. Drain: manual suits units an operator visits routinely; choose automatic (A) or the differential-pressure default where the bowl is hard to reach. Element: the standard 40 um grade in this code covers general supply; pick 5 um (W) for finer protection of valves and cylinders. Gauge: the embedded square gauge reads in MPa; an external round gauge and psi or bar scales are options. The K in this code fits a reverse (check) valve; the version without it carries the same specification minus the valve. Thread is PT as standard, with G (BSPP) and NPT orderable; bracket included. AirTAC publishes flow as curves, not a single rating, so ask us to confirm sizing against the datasheet before ordering.
Quick checklist
- ✓ Body size for your peak flow (See datasheet here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain sets the regulating band
- ✓ Gauge fitted, shape and scale
- ✓ Thread PT, G (BSPP) or NPT
- ✓ Oil needed downstream? Use GFC instead
Installation & Maintenance Notes
- check Mount vertically, bowl down, following the airflow arrow.
- check One body does the filtering and the regulating — no separate regulator needed.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Adjust only within 0.15 - 0.9 MPa (20 - 130 psi).
- check Drain condensate before the bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
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 GFR Filter Regulator GFR400C15MF1K FAQ
AirTAC publishes G-series flow as performance curves, not as a single rated figure, so there is no one number we can honestly quote here. Send us your working pressure and flow target and we will confirm the sizing from the datasheet on request before you order.
K fits a reverse (check) valve, so air flows one way through the unit and downstream pressure is held if the upstream supply fails or falls. Everything else is unchanged: 1/2 in PT ports, manual drain, standard 40 um element, embedded square MPa gauge, 0.05-0.9 MPa (7-130 psi) adjustment range with manual drain, and -5 to 70 C operation. A version without the valve is available in the same series.
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Request a Quote for Airtac GFR Filter Regulator GFR400C15MF1K
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