Airtac GFR Filter Regulator GFR400C15F1K
The AirTAC GFR Filter Regulator GFR400C15F1K 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 GFR400C15F1K
GFR400C15F1K is an AirTAC G-series filter regulator with a built-in reverse (check) valve on the outlet. In one body it removes water and particulate from the compressed air line, regulates the downstream pressure, and holds that pressure if the upstream supply dips or is shut off - the job the K suffix adds over the standard GFR400C15F1. This unit is the 400 frame with a PT1/2 port, standard 40 um element, differential-pressure drain and an embedded square pressure gauge scaled in MPa.
This is a genuine AirTAC part. Maximum working pressure is 1.0 MPa (145 psi), the standard regulating range with the differential-pressure drain is 0.15-0.9 MPa (20-130 psi), and the working temperature range is -5 to 70 C (non-freezing). The 400-size bowl is polycarbonate. The GFR family also covers 200, 300 and 600 frames, automatic or manual drains, a 5 um (W) element, G (BSPP) or NPT threads and other gauge scales. Flow data is published as curves rather than a single rated figure, so we confirm datasheet and sizing numbers on request.
Airtac GFR Filter Regulator GFR400C15F1K Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C15F1K |
|---|---|
| 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 GFR400C15F1K
| 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 GFR400C15F1K Is Used
Fixture clamp circuits
Regulated air for power clamps on a CNC machining fixture: the built-in check valve holds clamp pressure through momentary supply dips so the part stays gripped until you vent it deliberately.
Pilot air for process valves
A clean, regulated pilot supply to large automated process valves, where the check valve keeps the pilot signal from bleeding back through a dropping main.
Carton sealer hold-down
Air for the hold-down and flap-fold cylinders on a case-sealing machine, with the embedded MPa gauge giving operators a set point they can verify at a glance.
Is the Airtac GFR Filter Regulator GFR400C15F1K the Right Unit?
Start with the port: the 400 frame carries 1/2 inch ports here, with GFR300 covering 1/4-3/8 inch circuits and GFR600 covering 3/4-1 inch lines. The K suffix is already fitted on this code, so the outlet is blocked against reverse flow; order GFR400C15F1 without it if backflow is not a concern. Other decodable choices are drain type (differential-pressure standard, A automatic, M manual), element grade (40 um standard, W for 5 um), gauge scale (1 MPa, 2 psi, 3 bar), thread (PT standard, G or NPT to order) and the J no-bracket version. AirTAC publishes flow as pressure-drop curves, not a single rating, so share your line pressure and air demand and we will confirm sizing from the datasheet before you order.
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 GFR400C15F1K FAQ
Start with the port - the 1/2 inch PT port here suits 1/2 inch piping - then confirm capacity. AirTAC publishes G-series flow as pressure-drop curves, not a single rated figure, so tell us your working pressure and air consumption and we will confirm the numbers from the datasheet on request.
Choose GFR400C15F1K whenever downstream pressure must survive an upstream loss - clamping, holding or pilot circuits. The K adds a built-in reverse (check) valve that blocks reverse flow through the unit; the standard version does not include it. Both share the 400 frame, PT1/2 port, 40 um element, differential-pressure drain and the same 0.15-0.9 MPa regulating range.
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Genuine AirTAC parts produced by AirTAC factory.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Request a Quote for Airtac GFR Filter Regulator GFR400C15F1K
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.