The AirTAC GFR40015LJC2WTK AirTAC Filter Regulator NPT 1/2 in is a genuine G-series filter regulator: water separation, 5 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 GFR40015LJC2WTK is an AirTAC GFR400 filter regulator: a 1/2 in port unit that removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is the low-pressure type, fitted with a 5 um filter element (code W), a differential-pressure drain, a round pressure gauge reading in psi, and a reverse/check valve to hold the downstream circuit. The polycarbonate bowl suits non-freezing compressed air from -5 to 70 C, and the unit is supplied without a mounting bracket.
This is a genuine AirTAC part. The GFR400 size is one step in the GFR range, which spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in and thread options PT (the AirTAC standard), G (BSPP) and NPT. Drain type, filter grade, gauge style and scale, and the check-valve option let you match the unit to the circuit. Flow figures are published as curves rather than a single rating, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR40015LJC2WTK AirTAC Filter Regulator NPT 1/2 in |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 5 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, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
On paint or coating lines that run their atomising air below standard setpoints, the low-pressure type regulator lets the line hold a reduced working pressure while the 5 um element keeps fine particulate out of the finish.
Carton sealers, labellers and wrap stations on a packaging line need clean, regulated air at each machine. This 1/2 in filter regulator feeds the machine's valve manifold, and the check valve holds the circuit if the main supply drops.
Clamp and fixture circuits on a CNC machining cell depend on stable, clean air to hold parts securely. This unit filters the supply to 5 um, regulates it to the setpoint the clamps need, and the psi gauge gives the operator a direct read.
Size and port are the first choice: this unit is size 400 with a 1/2 in NPT port, sitting above the 3/8 in options in the smaller sizes and below the 3/4 in ports of the size-600 range. Pick the size against the air demand of the circuit. The 5 um element (code W) on this unit suits points where finer particulate removal matters; the 40 um standard element is available in other codes. Drain is differential-pressure here, the family default, with automatic and manual drain versions available under other codes. The round gauge on this code reads in psi; embedded square gauges and MPa or bar scales exist in other codes. The K code means a reverse/check valve is fitted, useful where downstream pressure must be held if supply is interrupted. Thread is NPT on this code; PT is the AirTAC standard and G (BSPP) is also orderable. A mounting bracket can be added via other codes; this one ships without one. Flow is published 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. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for this series as curves rather than a single rated figure, so we do not quote a number such as l/min or SCFM. Tell us your application and air demand and we will confirm the datasheet and check the sizing against your flow requirement before you order.
The L code marks this as the low-pressure regulator variant, intended for circuits that run below the standard setpoint band. Standard GFR units with differential-pressure drain cover 0.15-0.9 MPa (20-130 psi); the exact range for the low-pressure type is not published in our data, so ask us to confirm it for your setpoint. Maximum inlet pressure remains 1.0 MPa (145 psi).
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.