The AirTAC GFR400C15LJF1T AirTAC Filter Regulator NPT1/2 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 GFR400C15LJF1T is a size 400 filter regulator: water and particulate filtration plus pressure regulation combined in a single body, so one component cleans the air and holds your downstream pressure where the circuit needs it. This configuration is the low-pressure type, fitted with a differential-pressure drain that bleeds accumulated condensate automatically whenever the pressure differential across the element is high enough, a 40 um standard filtration element, an embedded square pressure gauge reading in MPa, and 1/2 in NPT ports. No mounting bracket is included with this variant, so plan your panel or manifold mounting accordingly.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in up to 1 in, a choice of differential-pressure, automatic or manual drains, a 5 um fine-filtration option, gauge scale choices and PT, G or NPT threads. Max inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm the sizing and datasheet figures for your application before ordering.
| Model | GFR400C15LJF1T AirTAC Filter Regulator NPT1/2 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) |
On a packaging machine's low-pressure clamping and sealing circuits, this filter regulator cleans the shop air of water and pipe scale and holds a gentle, stable working pressure so seals and clamps act without overstressing film or product.
Feeding soft-acting grippers and hold-down cylinders in an assembly cell, the unit strips condensate and particulate before the valves and cylinders and lets the cell set a low, repeatable working pressure for delicate handling.
Supplying the air cylinders that throw sorting gates and diverters on a conveyor line, the filter regulator keeps moisture and debris out of the valves while holding the low operating pressure those actuators are set up for.
Size 400 with 1/2 in ports sits in the upper half of the GFR range, so step up or down through the 200/300/400/600 ladder against the air demand of your circuit - and because flow is published as curves rather than a single rated figure, ask us to confirm the right size against your application before ordering. This unit is the low-pressure type, intended for circuits that run below standard regulator settings; its exact adjustment range is not published in the material we hold, so confirm it with us. The differential-pressure drain is the default and suits steady duty; an automatic drain (code A) suits unattended installations and a manual drain (code M) suits intermittent duty. The 40 um element is standard; specify W for 5 um where finer filtration is needed. The embedded square gauge here reads in MPa; psi or bar scales are available. Thread is NPT in this code - PT is the standard and G (BSPP) is also an order option. A bracket is not fitted (code J); order the bracketed variant if you need panel mounting.
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, not as a single rated figure, so we do not quote a rated flow, Cv or l/min number for this unit. Tell us your inlet pressure and the air demand of your circuit and we will confirm the sizing against the datasheet curves on request before you order.
The L in the code marks the low-pressure regulator type, intended for circuits that run below standard regulator settings; the exact adjustment range for this type is not published in the material we hold, so confirm it with us. The drain is the differential-pressure type (blank code), which discharges accumulated condensate automatically when the pressure differential across the filter element is high enough - no manual draining in normal service, and automatic (A) or manual (M) drains are available as order options.
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.