
The AirTAC GFR Filter Regulator GFR400C10AJC1K 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.
GFR400C10AJC1K is an AirTAC G-series filter regulator with a reverse/check valve (K) fitted, so downstream air cannot flow back through the unit toward the supply side. Beyond that option it is the same configuration as GFR400C10AJC1: 400-size filter-plus-regulator in one body, PT3/8 port, automatic drain, 40 um standard filter element, external round gauge scaled in MPa, and no mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi), the adjustment range with automatic drain is 0.15-0.9 MPa (20-130 psi), the working temperature is -5 to 70 C, and the 400-size bowl is PC (polycarbonate).
This is a genuine AirTAC part. Across the G series the filter regulator comes in 200 to 600 sizes, ports from 1/8 to 1 inch, three drain types, 40 um or 5 um elements, square or round gauges in MPa, psi or bar, G (BSPP) or NPT threads, and the K check-valve option. Flow is published as curves rather than one rated figure, so we confirm flow and datasheet figures on request.
| Model | Airtac GFR Filter Regulator GFR400C10AJC1K |
|---|---|
| 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) |
Supplying the clamping circuit of a pneumatic workholding press, where the check valve keeps downstream air from bleeding back toward the supply side if upstream pressure drops.
Conditioned, regulated air for the gripper and clamping cylinders on a robotic palletizer cell, with the 3/8 inch port feeding the valve manifold on the arm base.
Air preparation for the cylinder bank of a rotary-index assembly machine, where the check valve isolates the stations from supply-side loss so a drop upstream does not release the loaded parts.
Pick this code over GFR400C10AJC1 when the circuit behind the unit must be isolated from supply-side air loss - the K suffix adds the reverse/check valve and changes nothing else in the decode. Size from the port and flow: 400 size with a 3/8 inch PT port is the step above the 300 series; AirTAC publishes flow as curves rather than a single rating, so ask us to confirm sizing against the curves for your demand. The automatic drain suits unattended duty and gives a 0.15-0.9 MPa (20-130 psi) adjustment range; manual-drain versions reach 0.05-0.9 MPa (7-130 psi). The 40 um element is standard, with 5 um (W) available. The external round gauge reads in MPa; square-gauge, psi and bar variants exist. Thread is PT as standard with G (BSPP) and NPT as catalogue options, and J means no bracket is fitted.
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 G series as curves, not as a single rated number, so there is no figure to quote here. Give us your line pressure and required flow and we will confirm against the datasheet curves that the 400 size with the 3/8 inch port is right before you order.
Only one thing: a reverse/check valve is fitted, so downstream air cannot flow back through the unit toward the supply. Everything else in the decode is identical - 400 size, PT3/8 port, automatic drain, 40 um element, external round MPa gauge, no bracket, PC bowl.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.