The AirTAC GFR40015LJC2WT 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 GFR40015LJC2WT is an AirTAC GFR400 series filter regulator: filtration and pressure regulation combined in one body. It removes water and particulate from compressed air through a 5 um element (the finer of the two catalogue grades, selected with the W code) and regulates downstream pressure in the low-pressure configuration. This unit is built for 1/2 in ports with NPT thread, carries a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element is high enough, and is fitted with an external round gauge scaled in psi. Max inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). The polycarbonate bowl suits the 400 size; only the 600 size uses an aluminium alloy bowl. No mounting bracket is included with the J code.
This is a genuine AirTAC part. The GFR filter-regulator line is available in 200, 300, 400 and 600 sizes with a choice of ports, PT (standard), G or NPT thread, differential-pressure, automatic or manual drains, 40 um standard or 5 um filtration, standard or low-pressure regulation, and square or round gauges scaled in MPa, psi or bar. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR40015LJC2WT 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 | 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. |
| 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. |
| (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" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
A CNC machining cell with pneumatic clamps and low-pressure actuation takes filtered, regulated air at the cell drop. The 5 um element protects clamp cylinders and check valves from particulate and water, while the low-pressure regulator holds the gentle holding pressure the clamping circuit is set for.
A cartoning or case-sealing line running air cylinders, vacuum generators and low-pressure actuated guides draws from a single 1/2 in drop. This filter regulator cleans the supply to 5 um, holds the reduced working pressure the packaging controls were tuned around, and its differential-pressure drain keeps condensate moving out without daily operator rounds.
A quality lab or test bench running pneumatic fixtures and low-pressure test actuators needs clean, steady, gently regulated air. The 5 um grade and low-pressure regulation suit sensitive bench equipment, and the round psi gauge gives operators a direct read of set pressure in the units they work in.
Size and port set the capacity envelope: this unit is 400 size with 1/2 in NPT ports, one step up from 300, so step up if your line has grown or down if 1/2 in is more port than the circuit needs. Drain choice matters: the differential-pressure drain fitted here needs no operator attention, while a manual drain (M) suits intermittent-duty cells and an automatic drain (A) suits unattended lines. The 5 um element (W) is the right pick where finer particulate matters, such as downstream valves and instruments; the 40 um standard grade suits general shop-air prep. The round psi gauge fitted here is the optional external style; an embedded square gauge scaled in MPa, psi or bar is the standard alternative. NPT thread is an order option - PT is the catalogue standard, and G (BSPP) is also available. No bracket is fitted with the J code; order the bracket variant if panel or wall mounting is needed.
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated number, and the exact regulation range of the low-pressure type is not published on the sheet we work from. Tell us your line pressure requirement and expected air demand and we will confirm the datasheet figures against your application 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 family as performance curves rather than a single rated figure, so we do not quote a rated flow number for this unit. Send us your application details - line pressure, downstream demand and port size - and we will confirm the datasheet flow curve and check the sizing for you on request. The same applies to the exact regulation range of the low-pressure type: we will confirm it from the datasheet before you order.
The W in the code selects the 5 um filter grade instead of the 40 um standard, so this unit strips finer particulate - a good match for valves, instruments and sensitive actuators. The C2 in the code fits the optional external round gauge scaled in psi; the embedded square gauge in MPa, psi or bar scales is the standard alternative. The L code makes this the low-pressure regulator type rather than the standard type, intended for reduced working pressures; its exact range is not published on our sheet, so we confirm it from the datasheet on request.
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.