The AirTAC GFR400C15F1TK AirTAC Filter Regulator NPT1/2 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 GFR400C15F1TK is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure in one body. This size 400 unit is threaded NPT1/2 and carries the standard 40 um filter element. Condensate is drained by differential pressure, the embedded square gauge is fitted with an MPa scale, a reverse/check valve is included, and the unit comes with a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi), the regulation range with this drain type is 0.15-0.9 MPa (20-130 psi), and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR series spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and options that include automatic or manual drains, a 5 um element (code W), psi or bar gauge scales, G or NPT threads, and no-bracket or no-gauge variants. Flow is published as curves rather than a single rating, so ask us to confirm datasheet figures for your application.
| Model | GFR400C15F1TK AirTAC Filter Regulator NPT1/2 |
|---|---|
| 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) |
Clean, pressure-stabilised air ahead of spray booths and air-driven agitators, where water carry-over or pressure drift would spoil finish quality. The 40 um element and differential drain handle condensate between shift checks.
Feeding pick-and-place and carton-sealing cylinders on a packaging conveyor, where a steady set pressure keeps stroke timing consistent across the line and the check valve holds the setting if upstream supply dips.
Conditioning supply air ahead of directional control valve manifolds on process skids, keeping particulate and free water out of valve seats while the square gauge gives operators a local pressure reference.
Start with the size and port: this 400-size unit takes a 1/2 inch NPT thread, one step up from the 300 series, so step down if your line's flow demand is modest and step up to 600 for larger ports. Drain type is a real choice: differential-pressure (as fitted here) renews the drain with pressure changes, automatic (code A) ejects condensate on its own, and manual (code M) needs an operator. Filter grade is 40 um standard; specify 5 um (code W) where finer protection matters. The embedded square gauge reads MPa; an external round gauge is optional with MPa, psi or bar scales. Thread: PT is the AirTAC standard, with G (BSPP) and NPT as catalogue options to order. The bracket is included; code J deletes it. Because flow is published as curves rather than a single rating, 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 GFR series as curves rather than a single rated figure, so we do not quote one number here. Tell us your line pressure, set pressure and expected air demand, and we will confirm the sizing from the datasheet curves on request before you order.
The differential-pressure drain (the default, blank code) operates with changes in pressure across the unit. Code A gives an automatic drain that ejects condensate without operator attention, and code M gives a manual drain for supervised draining. All three are catalogue options on this size 400 filter regulator.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 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.