The AirTAC GFR400C15JNTK AirTAC Filter Regulator 1/2 NPT, Check Valve 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 GFR400C15JNTK is an AirTAC GFR400 filter regulator: one body that removes water and particulate from compressed air down to 40 um and regulates downstream pressure over 0.15-0.9 MPa (20-130 psi). This configuration is built around a 1/2 in NPT port, with a differential-pressure drain that bleeds accumulated condensate automatically whenever the pressure differential across the element rises, so no manual draining routine is needed. A reverse/check valve is fitted, which holds the downstream setting if upstream supply is interrupted. No gauge is supplied with this code and no mounting bracket is included; max inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. On this 400 size the bowl is polycarbonate.
This is a genuine AirTAC part. The GFR filter-regulator line spans sizes 200, 300, 400 and 600 with a choice of port sizes and PT, G or NPT threads, plus automatic, manual or differential-pressure drains, a 5 um element option (code W) and gauge variants. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR400C15JNTK AirTAC Filter Regulator 1/2 NPT, Check Valve |
|---|---|
| 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) |
Feed the tool-clamp and chip-clearing cylinders on a CNC machining centre: the 40 um element stops scale and pipe debris reaching the clamping circuit, the regulator holds a steady setting for repeatable clamp force, and the check valve keeps the clamp from venting if shop air dips mid-cycle.
Supply the flap-fold and taping heads on a packaging conveyor line. The filter-regulator cleans the line air and sets a consistent working pressure for smooth cylinder motion, while the differential-pressure drain handles condensate on a line that runs all shift without an operator draining bowls.
Point-of-use preparation for a pick-and-place robot cell: filtered, regulated air to the gripper valves and suction generator, with the 1/2 in port suiting a cell-level supply drop and the check valve holding the gripper position through brief upstream pressure losses.
Start with the port step: this unit is the 400 size with a 1/2 in NPT port, one step up from the 300 series - match the size to the air demand of the circuit, since larger sizes carry larger ports and more flow. From there the real choices are: drain type (this code uses the differential-pressure drain; automatic or manual are alternatives in the series), filter grade (40 um standard here, 5 um if you order the W variant), gauge (none fitted on this code; gauge variants with MPa, psi or bar scales exist), thread (PT is the AirTAC standard; G and NPT are order options, and this code is NPT), and bracket (this code omits it; bracketed variants exist).
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated number, so we will not quote you a flow figure from the code alone. Send us your application details and we will confirm the sizing against the datasheet curves 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 series as performance curves, not as a single rated figure, so there is no one flow number we can honestly quote from the model code. The 400 size with its 1/2 in port sits above the 300 series in the range, but for an actual figure we will confirm the datasheet curve for your operating pressure on request - just ask before ordering.
K means a reverse/check valve is fitted: if upstream pressure is lost, the valve holds the regulated downstream pressure instead of letting it bleed back, which protects circuits that must not collapse mid-cycle. N means no gauge is supplied with this code - gauge variants with MPa, psi or bar scales are available in the series if you want a visual pressure readout at the unit.
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.