The AirTAC GFR40015LC2 AirTAC Filter Regulator 1/2 in PT, 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 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 GFR40015LC2 is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single compact body. This size 400 unit has a PT1/2 (1/2 in PT) port, the standard 40 um filter element, and a differential-pressure drain that bleeds accumulated condensate automatically whenever the pressure differential across the element is high enough. It is the low-pressure (L) type, suited to circuits that run at reduced working pressure, and it is fitted with a round pressure gauge reading in psi. 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 is published in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and with choices of drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um with code W), gauge style and scale, thread (PT standard, G and NPT as options) and bracket. Because flow is published as curves rather than a single rated figure, we confirm the datasheet and flow figures for your application on request.
| Model | GFR40015LC2 AirTAC Filter Regulator 1/2 in PT, Low-Pressure |
|---|---|
| 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, 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. |
| (blank) | Mounting bracket included. |
| (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. |
| (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) |
Filtering and regulating the supply air feeding a carton-sealing or wrapping machine's cylinders, with the 40 um element and psi gauge keeping the supply clean and set at the pressure the machine was built for.
Conditioning the air that drives conveyor gate and diverter actuators on a production line, where the differential-pressure drain handles condensate without daily operator attention.
Serving as the single filter-regulator stage in a pneumatic control panel that runs at reduced pressure, with the 1/2 in PT port matching the panel's main air drop and the psi gauge giving a local reading.
Start with size and port: the 400 size with its PT1/2 port suits lines plumbed in 1/2 in, and the step up or down in size is how you match the unit to the flow your circuit needs. Choose the drain next: this unit's differential-pressure drain is the fit-and-forget default; automatic (A) drains continuously and manual (M) gives operator-controlled draining. Filter grade is 40 um standard here - specify 5 um (code W) only if finer filtration is genuinely needed, as it loads faster. The fitted round gauge reads in psi; square embedded gauges and MPa or bar scales are the other published options. Thread is PT as standard, with G (BSPP) and NPT available to order, and a mounting bracket is included. Because AirTAC publishes flow as curves rather than a single rating, 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. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for this series as curves, not as a single rated number, so we do not quote a figure here. Tell us your application and line pressure and we will confirm the flow and datasheet figures for this exact model on request before you order.
The differential-pressure drain is the default: it discharges collected condensate automatically when the pressure drop across the 40 um element rises high enough, with no operator input. The published alternatives are automatic drain (code A) and manual drain (code M); the manual-drain version also carries a wider regulator adjustment range. Ask us to quote the variant you need.
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.