The AirTAC GFR400C15LJC1TK AirTAC Filter Regulator NPT1/2 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 GFR400C15LJC1TK is a size 400 filter regulator: water and particulate filtration plus pressure regulation combined in a single body, with a 1/2 in NPT port. This configuration is the low-pressure type, fitted with the standard 40 um filter element and a differential-pressure drain that bleeds accumulated condensate automatically as the pressure differential across the element builds. It carries a round pressure gauge scaled in MPa and a built-in reverse/check valve, and it is supplied without a mounting bracket.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600, with a choice of port sizes, PT (standard), G or NPT threads, differential-pressure, automatic or manual drains, 40 um or 5 um (W) filter grades, standard or low-pressure regulation, gauge scale options, and bracket or no-bracket mounting. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR400C15LJC1TK AirTAC Filter Regulator NPT1/2 |
|---|---|
| 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 CNC machining centre with air-actuated clamps and fixtures, this 1/2 in filter regulator cleans the shop air of water and swarf-carrying particulate and holds a steady, lower regulated pressure to the clamp cylinders, with the check valve holding the circuit against backflow.
On a carton-forming and sealing line, baggers and case packers run short-stroke air cylinders off a 1/2 in supply. This unit filters the compressed air and regulates it down to the pressure the machine builder specifies, with the MPa gauge giving the operator a clear line-pressure readout.
On a distribution conveyor system with air-powered diverters, stop gates and pushers, this filter regulator conditions the 1/2 in header air and sets the operating pressure for the gate cylinders, while the differential-pressure drain keeps condensate out of the valves downstream.
Start with the port step: size 400 in 1/2 in porting sits in the upper mid-range of the GFR line, one step above 300 and below the large 600 frame, so match it to the line size and the flow your circuit needs. Choose the drain type: this unit uses the differential-pressure drain (default); automatic (A) and manual (M) versions exist if your duty calls for them. Filter grade is 40 um as coded; specify W if you need the 5 um element. The gauge here is the external round type scaled in MPa; embedded square gauges and psi or bar scales are alternatives. Thread: PT is the AirTAC standard, while G (BSPP) and NPT (T) are order options - this code carries NPT. Bracket: J means no bracket is included. One honest note before you order: flow is published as curves, not a single rated figure, so send us your application and we will confirm sizing against the datasheet before you commit.
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 performance curves rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM number for this unit. Send us your line size, operating pressure and demand, and we will confirm the sizing against the datasheet curves on request before you order.
The L in the code marks this as the low-pressure regulator type rather than the standard version; it is intended for circuits regulated to lower working pressures, and the exact adjustment range for this variant is not published on the sheet we work from, so ask us to confirm it. The K in the code means a reverse/check valve is fitted, which blocks backflow through the unit. This configuration also carries the standard 40 um filter element, a differential-pressure drain, an external round gauge scaled in MPa, and no mounting bracket (code J).
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.