The AirTAC GFR400C15AF2K AirTAC Filter Regulator PT1/2 with Gauge 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 GFR400C15AF2K is an AirTAC GFR400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built around a PT1/2 (1/2 in) port, a 40 um standard filter element, an automatic drain, and an embedded square gauge reading in psi. A reverse (check) valve is fitted (code K) and a mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi), the regulator adjusts from 0.15-0.9 MPa (20-130 psi), and the operating temperature range is -5 to 70 C (non-freezing). The bowl on the 400 size is polycarbonate; only the 600 size uses an aluminium alloy bowl.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with matching port sizes, and catalogue options include a 5 um element (code W), manual or differential-pressure drain, gauge scales in MPa, psi or bar, G (BSPP) or NPT threads, and bracket choices. AirTAC publishes flow as curves rather than a single rated figure, so we confirm flow and datasheet figures on request before you order.
| Model | GFR400C15AF2K AirTAC Filter Regulator PT1/2 with Gauge |
|---|---|
| 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) |
Feeding clean, regulated air to cylinder-driven carton-forming, sealing and case-packing stations, where the automatic drain keeps condensate off the line during long unattended runs.
Supplying regulated pressure to pneumatic clamps and fixtures on a CNC cell, with the psi gauge giving operators a direct readout of clamp circuit pressure.
Conditioning shop air ahead of spray guns on a paint or coating line, filtering water and particulate from the supply and holding a steady regulated setting at the gun manifold.
Choose the size and port step (200/300/400/600 covering 1/8 in to 1 in ports) against the air demand of the line; the 400 size with its PT1/2 port sits mid-range. Pick the drain type: automatic (this unit, code A) for draining without operator attention, manual (code M) for operator-controlled draining, or the differential-pressure default. Filter grade is 40 um standard; specify W for the 5 um option where finer particulate capture is needed. Gauge choices are the embedded square gauge (this unit, psi scale) or an external round gauge, with MPa, psi or bar scales. Thread is PT as standard; G (BSPP) and NPT are order options. A mounting bracket is included on this configuration. AirTAC publishes flow 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 GFR series as curves rather than a single rated figure, so no rated flow number is quoted here. Send us your air demand and line pressure and we will confirm the sizing against the datasheet curves on request.
Code A fits the automatic drain, which handles collected condensate without an operator opening the drain by hand, useful on lines that run unattended. Manual drain (code M) gives operator-controlled draining, and the differential-pressure drain is the catalogue default. All three share the same 0.15-0.9 MPa (20-130 psi) regulation range on this 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.