
The AirTAC GFR Filter Regulator GFR400C10AF1 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.
GFR400C10AF1 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 standard 40 um filter element and the embedded square pressure gauge graduated in MPa; the mounting bracket is included. Working limits are a maximum inlet pressure of 1.0 MPa (145 psi) and -5 to 70 C (non-freezing), the bowl for the 400 frame 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, not a substitute. The same G-series filter regulator is offered from size 200 to 600 with ports from 1/8 in to 1 in, and can be ordered with manual or differential-pressure drains, a 5 um element (W suffix), G or NPT threads, psi or bar gauge scales and a reverse (check) valve (K suffix). AirTAC publishes flow for this family as curves rather than a single rating, so we confirm datasheet figures on request.
| Model | Airtac GFR Filter Regulator GFR400C10AF1 |
|---|---|
| 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 the shop-air feed to a plasma cutting table, draining condensed water on an automatic cycle and holding the torch supply at the pressure set on the MPa gauge.
Sits at the drop to a paint spray booth, where the 40 um element takes water and pipe scale out of the line while the regulator holds the gun supply pressure the painter sets.
Feeds the cylinder and valve package of a carton-sealing machine with filtered, regulated air, with the automatic drain handling condensate between shift checks.
Start with the size and port step: this is the 400 frame with a 3/8 in PT port, above the 200/300 frames and below the 600, and each step up moves both port size and flow capacity. Drain is automatic in this code; manual (M) and differential-pressure (blank) variants exist under their own codes, with the adjust range 0.15-0.9 MPa (20-130 psi) on auto and differential drains and 0.05-0.9 MPa (7-130 psi) on manual. Filter grade is the standard 40 um (order the W suffix for 5 um), the gauge reads in MPa with psi or bar orderable, the thread is PT as standard with G and NPT options, and the bracket is included.
AirTAC publishes flow for this family as curves, not a single rated figure, so send us your flow and pressure requirement and we will confirm the datasheet and sizing against your application 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 G-series flow as curves rather than a single rated figure, so we do not quote a number here. Ask us and we will confirm the datasheet and flow curve for the 400 size, 3/8 in port unit against your application before you order.
It is the drain code: A = automatic drain, so condensate is expelled without operator attention. The same body is also listed with a manual drain (M) and the differential-pressure default (blank). Note the adjust range differs by drain: 0.15-0.9 MPa (20-130 psi) with automatic or differential-pressure drain, 0.05-0.9 MPa (7-130 psi) with manual.
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.