
The AirTAC GFR Filter Regulator GFR400C10F1K 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 GFR400 series is a filter regulator: filtration and pressure regulation in a single body, with a drain bowl and no lubricator. This GFR400C10F1K is the 400 size on a PT3/8 port (standard PT thread), with the differential-pressure drain, a 40 um element, the embedded square gauge on a MPa scale plus the round external gauge (C), and a reverse (check) valve fitted (K) that holds the downstream setting if the upstream supply drops. Maximum working pressure is 1.0 MPa (145 psi), the regulation span is 0.15-0.9 MPa (20-130 psi) with the differential-pressure drain, and the polycarbonate (PC) bowl unit runs on compressed air from -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The G series spans 200, 300, 400 and 600 frames with ports from 1/8 to 1 in, and options include automatic or manual drains, a 5 um element (W), no-check-valve versions, other gauge scales, no-gauge (N) and no-bracket (J) variants, and G (BSPP) or NPT threads instead of PT. Flow is published as performance curves rather than a single rated figure, so we confirm datasheet and flow values on request.
| Model | Airtac GFR Filter Regulator GFR400C10F1K |
|---|---|
| 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) |
Supplying and regulating air to an end-of-arm gripper on a robot cell, with the check valve helping the circuit hold its set pressure if the header supply dips.
Conditioning the air feed to layer-forming pushers and clamps on a palletizer, where the reverse valve keeps downstream pressure from bleeding back during shift changes.
Regulating clamp cylinders on a resistance-weld fixture; the reverse valve supports the clamp circuit through brief supply interruptions between welds.
Move up or down through the 200/300/400/600 frames as your port and flow needs change; this 400 unit connects on 3/8 in PT. With the coded differential-pressure drain the regulation span is 0.15-0.9 MPa (20-130 psi); manual-drain versions quote 0.05-0.9 MPa (7-130 psi) and an automatic drain is available. The K here adds the reverse/check valve - choose the plain GFR400C10F1 if you do not want it. Element grade is 40 um as coded, or 5 um with W, and gauge scales come in MPa, psi or bar. PT is the standard thread with G (BSPP) and NPT as catalogue options, and the bracket is included (J deletes it). Flow is published as curves, not a single rating, so ask us to confirm sizing against your 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 the G series as performance curves rather than a single rated figure, so we do not quote one number. Share your required flow and working pressure and we will confirm the datasheet curve values and correct sizing on request before you order.
It means a reverse (check) valve is fitted, so the downstream set pressure is held if the upstream supply drops. The base GFR400C10F1 without K has no check valve; the differential-pressure drain, 40 um grade, MPa square gauge plus round external gauge and the PT3/8 port are otherwise the same.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.