
The AirTAC GFR Filter Regulator GFR400C10AF1WK 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.
GFR400C10AF1WK is an AirTAC G-series filter regulator: filtration and pressure regulation combined in one body, with a drain bowl but no lubricator. This code decodes as the 400 size with a 3/8 in PT port, automatic drain, the embedded square pressure gauge graduated in MPa, the finer 5 um filter element per the W suffix and, per the K suffix, a reverse (check) valve fitted; the mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi), operating range is -5 to 70 C (non-freezing), the 400-size bowl is polycarbonate, and with automatic drain the regulator adjusts from 0.15 to 0.9 MPa (20-130 psi).
This is a genuine AirTAC part. The G-series filter regulator family spans sizes 200 to 600 with ports from 1/8 in to 1 in, with manual or differential-pressure drains, the 40 um standard element, G or NPT threads, psi or bar gauge scales and versions without the check valve available under their own codes. Flow is published as curves rather than a single rating, so we confirm datasheet figures on request.
| Model | Airtac GFR Filter Regulator GFR400C10AF1WK |
|---|---|
| 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) |
Conditions air to the gripper and assist circuits of a robotic pick-and-place cell, with the 5 um element suiting finer pneumatic components and the check valve blocking reverse flow when the cell is isolated.
Supplies a pneumatic gauging station on a machining line with 5 um filtered air at the pressure set on the MPa gauge, draining condensate automatically between checks.
Filters and regulates actuator air in a brewery bottling hall, with the automatic drain handling condensate and the check valve holding the circuit against backflow.
This code combines the two options: the W suffix gives the 5 um element (the base code uses 40 um) and the K suffix fits a reverse (check valve) version. The frame is the 400 size with a 3/8 in PT port; if your flow requirement points to the next step, the 600 frame with larger ports carries its own codes. Drain is automatic, with manual (M) and differential-pressure (blank) variants under their own codes; the adjust range is 0.15-0.9 MPa (20-130 psi) on auto and differential drains and 0.05-0.9 MPa (7-130 psi) on manual. Gauge scale is MPa as coded, with psi or bar orderable, and PT is the standard thread with G and NPT catalogue options.
AirTAC publishes flow for this family as curves, not a single rated figure, so send us your requirement and we will confirm the datasheet and sizing 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.
There is no single rated flow figure to quote: AirTAC publishes flow for this family as curves only. Ask us and we will confirm the datasheet and flow curve for this 400 size, 3/8 in port unit against your application on request.
Yes, as catalogue options: PT is the standard thread for this family, and the same 400 size unit is listed with G (BSPP) and NPT threads under their own order codes. State your piping standard when you enquire and we will confirm the correct code.
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.