
The AirTAC AirTAC GFR400-15 Filter Regulator (GFR40015LJC1) 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 PT1/2" 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 GFR40015LJC1 is a G-series filter regulator: filtration and pressure regulation built into one body, with a drain bowl but no lubricator. Decoded, this unit is G400 size with a PT1/2 port (1/2 inch, PT thread as standard), a differential-pressure drain, the standard 40 um filter element and the L low-pressure regulator type. The J code means no mounting bracket is included, and C fits the external round pressure gauge on an MPa scale.
This is a genuine AirTAC part for compressed air only, rated to 1.0 MPa (145 psi) maximum inlet and -5 to 70 C (non-freezing); the 400-size bowl is PC (polycarbonate). With the differential-pressure drain the catalogue setting range is 0.15-0.9 MPa (20-130 psi); as an L low-pressure type, confirm its exact adjustment ceiling with us before ordering. The G-series spans 200/300/400/600 sizes with G (BSPP) or NPT threads, automatic or manual drains, a 5 um W element, square embedded or round external gauges and optional brackets. AirTAC publishes flow as curves rather than a single rating, so we confirm flow and datasheet figures on request.
| Model | AirTAC GFR400-15 Filter Regulator (GFR40015LJC1) |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Low-pressure 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 — round, MPa 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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. |
|---|---|
| 15 | Port size PT1/2". 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)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 1 | Gauge scale: MPa. 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 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Mounted at the air drop feeding a paint spray booth, this filter regulator removes water and particulate from the shop supply and holds a steady low regulated pressure at the guns - with no lubricator in the body, no oil mist reaches the finish.
Feeding the pneumatic cylinders on a carton-forming and sealing machine, the GFR40015LJC1 keeps component supply pressure stable through shift-long cycling while the differential-pressure drain sheds collected condensate.
On a machining centre's workholding clamps, the unit delivers clean, regulated air at a repeatable low setting so clamping force stays consistent between parts; the external round MPa gauge gives the operator a direct pressure read.
Size step: the G400 frame with a 1/2 inch port sits mid-range in the G-series (200/300/400/600), so step up or down one frame if your line's flow demand changes - then verify against the published flow curve, since flow is given as curves, not a single rating. Decoded here: differential-pressure drain (the default, which sheds condensate as pressure drop builds), 40 um standard filtration, no mounting bracket (J), and an external round gauge on an MPa scale; the W suffix would switch to a 5 um element. Thread is PT as the standard - order G (BSPP) or NPT as catalogue options. Because this is the L low-pressure type, ask us to confirm its adjustment ceiling against your set pressure 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 G-series flow as curves, not as a single rated figure, so we do not quote a number here. Send us your line pressure and air demand and we will confirm the flow curve and check the sizing from the datasheet on request before you order.
In this code C selects the external round pressure gauge with an MPa scale; F would specify the embedded square gauge instead. Both indicate regulated pressure - the choice is gauge style and scale (1 = MPa, 2 = psi, 3 = bar). If you need psi or bar scaling, tell us and we will confirm the correct suffix.
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.