The AirTAC GFR400C15LJF2G AirTAC Filter Regulator G1/2 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 GFR400C15LJF2G is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a G1/2 (BSPP) port, the low-pressure regulator type, a 40 um standard filter element and a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element is high enough. A square pressure gauge scaled in psi is fitted so the set point can be read directly, and no mounting bracket is included with this variant.
This is a genuine AirTAC part. The GFR filter-regulator family is available in sizes 200, 300, 400 and 600 with a choice of ports, PT/G/NPT threads, manual, automatic or differential-pressure drains, a 5 um (W) element in place of the standard 40 um, and gauge or no-gauge variants. Flow figures are published as curves rather than a single rating, so ask us to confirm sizing and datasheet details for your application before ordering.
| Model | GFR400C15LJF2G AirTAC Filter Regulator G1/2 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) |
Feeds filtered, regulated air to the clamp cylinders on an assembly press, with the low-pressure regulator type holding a gentle clamping force and the psi gauge letting the setter verify the set point at the station.
Mounted at the air-prep position on a bag-sealing or carton-closing machine, it strips water and 40 um particulate before the sealing valves and regulates the supply so the sealing heads see steady pressure.
Serves as the point-of-use filter regulator on a valve-actuation panel, conditioning the pilot air supply and letting technicians read and adjust the pilot pressure locally on the square psi gauge.
Start with the port step: size 400 with a 1/2 in port suits lines whose flow demand sits in the upper mid-range of the G-series; step up to size 600 or down to size 300 if your pipe run or flow curve calls for it. Because flow is published as curves and not a single rated figure, send us your flow and pressure requirements and we will confirm the right size against the datasheet before you order. This unit is the low-pressure (L) regulator type - the exact regulation range for this variant is not published in the material we hold, so confirm it with us if your set point is critical. The drain here is differential-pressure (the default); automatic (A) and manual (M) drains are orderable alternatives. The 40 um element is standard - specify the W suffix for the 5 um grade if downstream equipment needs finer filtration. The fitted square gauge reads in psi; MPa and bar scales and an external round gauge are alternatives. Thread is G (BSPP) on this code; PT is the standard thread and G/NPT are catalogue options. Brackets are optional - this variant ships without one.
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 and flow demand and we will confirm the sizing against the datasheet on request before you order.
The L in the code marks the low-pressure regulator variant rather than the standard one, so this unit is intended for applications regulated at the lower end of the pressure range. The exact regulation range for the low-pressure type is not published in our material, so confirm your set point with us and we will verify it against the datasheet.
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.