The AirTAC GFR400C15ALC1TK AirTAC Filter Regulator NPT1/2 Low-Pressure 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 GFR400C15ALC1TK is a GFR-series filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This 400-size configuration has 1/2 in NPT ports, a 40 um filter element in a polycarbonate (PC) bowl, and an automatic drain that expels collected condensate without manual attention. The regulator is the low-pressure type, a round MPa gauge is fitted so the set pressure is visible at the unit, a reverse/check valve is included, and the unit comes with a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and options include manual or differential-pressure drains, a 5 um element (code W), square or round gauges with MPa, psi or bar scales, and G (BSPP) or NPT threads in place of the PT standard. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR400C15ALC1TK AirTAC Filter Regulator NPT1/2 Low-Pressure |
|---|---|
| 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) |
On a carton-sealing line, the low-pressure regulator sets the working pressure for pneumatic clamping cylinders, while the 40 um element and automatic drain keep moisture and debris out of the downstream valves.
Feeding pick-and-place grippers on an assembly cell, this filter regulator conditions the branch supply at the drop, the round MPa gauge lets a technician verify the set pressure at a glance, and a reverse/check valve is fitted for circuits that need one.
On looms and spinning frames that run low-pressure air to jets and small cylinders, this 400-size unit conditions the branch supply, with the automatic drain handling condensate in humid mill air without daily attention.
Every choice on this unit is decodable from the code. Size 400 sits in the upper-middle of the GFR range (200, 300, 400, 600), which steps up in port and physical capacity from 1/8 in to 1 in, so match the port - here 1/2 in NPT - to your line and confirm flow against the curve. Drain type is a real decision: automatic (this unit, code A) suits unattended duty, manual (code M) suits installations checked on a schedule, and the differential-pressure default bleeds only while air flows. Filter grade is 40 um standard or 5 um with code W if finer particulate matters.
Gauges are embedded square as standard with an external round gauge optional, in MPa, psi or bar scales; this unit carries the round MPa gauge. Thread is PT as the AirTAC standard, with G (BSPP) and NPT as catalogue options - this unit is NPT. The regulator here is the low-pressure type (code L); its exact regulating range is not published, so ask us to confirm it against your set pressure. AirTAC publishes flow for this series as curves, not a single rating, so send us your flow requirement and we will confirm sizing from the datasheet 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 flow for the GFR series as curves rather than a single rated figure, so we do not quote a number here. Ask us and we will confirm the flow curve and the datasheet figures for this 400-size, NPT1/2 unit against your application before you order.
The A in the model code means the automatic drain: condensate collected in the polycarbonate bowl is expelled without anyone opening it, which suits unattended installations. The same 400-size unit can be ordered with a manual drain (code M) or the differential-pressure default instead, and with a 5 um element (code W) if you need finer filtration than the standard 40 um.
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.